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mcirish3

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  1. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      Thanks for the catch on the elliptical orbit.    Also another issue is Moons.  These equations modify a lot for them if I am not mistaken I will have to spend some time thinking about them.

      Now for some good news.  There is a much easier way to find the prime meridian.  If you know all the planet and moons orientation of the 0o 0' 0" longitude mark relative to the fixed KSP X axis at t=0 and you know where the X axis is relative to each planet then you can solve for the rest.  It just so happens that this information is in a file somewhere in the KSP INI for the planets.  The mean anomaly is PI for Kerbin and the initial rotation for Kerbin's initial rotation is 90 degrees relative to this axis (from hyperedit) so that means the x axis points directly from the center of kerbin to cent of the sun.  Problem solved. :) well at least that part is solved now to actually do the math.   At least I don't have to spend hours doing this experimentally.  Threre where a lot of people that helped me figure this out so the only credit i get is asking enough questions.

    2. (See 52 other replies to this status update)

  2. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      Thank You again very very helpful and this would work If i can get my head around all of it.

      I will keep you updated I think this is the last piece of the puzzle.

    2. (See 52 other replies to this status update)

  3. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      OK So getting the exact initial orientation of each of the planets and moons could be a challenge.  NathanKell was so kind as to give us the exact orientation of Kerbin but the others could be problematic.   I do have enough info to predict the temperature at any location on Kerbin at any time of day or night at any altitude but the other planets are hopelessly out of reach, without accurate initial orientation parameters.

    2. (See 52 other replies to this status update)

  4. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      Thank You again you really are an endless supply of info.

    2. (See 52 other replies to this status update)

  5. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      Ug nix that last part of my last statement, that was why you told me to use hyperedit doh... I even knew that... That is what I get for trying to think before I have had my second cup of coffee.

    2. (See 52 other replies to this status update)

  6. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      Can the Semimajor axis be obtained via a cfg file?  Also  sidereal rotation period would need to be from program file as well to be 100% certain of accuracy. 

    2. (See 52 other replies to this status update)

  7. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      Hi all still working on this little project.  Just a quick question.  Does anyone know if the Solar day numbers on the Wiki are still accurate?  If no one know I will ask in a more public location.  Also If you don't know if they are accurate does anyone know how they were obtained?  

    2. (See 52 other replies to this status update)

  8. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      Quote

      For one thing you're not dealing with a perfect sphere, you're dealing with a fairly low-resolution polygonal approximation. That has something to do with it, surely?

      Sure it does.  So should I consider the solar panels catching light through the water(wor whatever passis for water on Eve) several minutes before sunrise a bug or working as intended or somewhere in between?

      Also not sure how I can account for this except to finish working out my Kerbin temp calculator and test  and see if I need to adjust it or not.

    2. (See 52 other replies to this status update)

  9. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      Oh and thanks for coming to my rescue on the spherical geometry. 

    2. (See 52 other replies to this status update)

  10. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      Quote

      By the way, in real life, sunrise is defined at the time when the Sun's upper limb touches the horizon.  By this definition, sunrise in KSP should occur 66 seconds earlier than the rise of the solar center.

      To be sure that makes sense, I think you may be onto something.  I wonder if no one noticed because no one wanted an accurate local clock in KSP before.  I am guessing no really needed to measure exactly when sunrise happens before.  In any case it does not matter as long as the same definition of sunrise is used for all measurements.  Since KSP solar panel gives a nearly instantaneous feedback I am going to hope that is correct and go with that trigger unless something else tells me otherwise.  The question then becomes will our calculations be off enough to matter if we use this definition since the proper definition of sunrise will determine whether or not our calculations for temp matches the numbers ksp puts out of a given place and time.

    2. (See 52 other replies to this status update)

  11. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      @NathanKell   

      Quote

      I wonder what accounts for the remaining 15-17 seconds.

      See above post with pick.  Any thoughts on the discrepancy from measured results to the expected?

    2. (See 52 other replies to this status update)

  12. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      By the way i apologise for the double post above I did not know it happened until just now.

    2. (See 52 other replies to this status update)

  13. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      Cool and I think I have a clue on how to convert from universale KSP time to hour angle.  A Greenwich point will need to be found for each planet though.

    2. (See 52 other replies to this status update)

  14. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      Quote

      Temperature = atmosphereTemperatureCurve + atmosphereTemperatureOffset * atmosphereTemperatureSunMultCurve

      where,

      atmosphereTemperatureOffset = latitudeTemperatureBiasCurve + latitudeTemperatureSunMultCurve * sunDotNormalized

      just to confirm if I rewrite this as expanded Temperature = atmosphereTemperatureCurve+ ((latitudeTemperatureBiasCurve + (latitudeTemperatureSunMultCurve * sunDotNormalized))*atmosphereTemperatureSunMultCurve)

      Expanding this gives Temperature = atmosphereTemperatureCurve+ (latitudeTemperatureBiasCurve*atmosphereTemperatureSunMultCurve) + (latitudeTemperatureSunMultCurve *atmosphereTemperatureSunMultCurve* sunDotNormalized)

      Also I am having a heck of a time remembering my spherical coordinate trigonometry any chance you could feed me the formulas for getting   the minimum SZA and Maximum SZA for a given latitude.

    2. (See 52 other replies to this status update)

  15. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      I Spent the morning using hyperedit and  got 2:59:43 at 0o 0' 0" this is when the solar panels activated.   Also did Duna but I will have to redo since 0o 0' 0" is at 2600m elevation on duna. I will install scansat and find a sea level coordinate along the equatorial plane and use that as the Greenwich meridian for duna   I also did Eve but I ended up reporting a bug after the Eve attempt due to oceans having 100% transparency thus reporting sunrise far earlier than it really happens. The bug report is here I probably did not do this correctly.   I think I can work around that bug.   Hi8KH9C.png

      Also it had occurred to me this morning that is was the KSC altitude that gave most of the error, but it looks like you figured it out befor I got around to telling you.  I wonder what accounts for the remaining 15-17 seconds.

    2. (See 52 other replies to this status update)

  16. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      Excellent work and thank you.  I guess Hyperedit will be my friend today so I can hop around to the other planets and get a measurement there as well.  I will test Kerbin as well just to confirm your results.  I suspect you may be right about the refraction thing.

    2. (See 52 other replies to this status update)

  17. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      Hmm... well... then I think I am going to determine sunrise at KSC with solar panels and calculate from there just to be sure.  though the 94 meter offset might be a problem.  Hmm maybe I should find an ocean view.  I do want it to be exact.  It is going to be additionally challenging doing the other planets.

    2. (See 52 other replies to this status update)

  18. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      I just so happen to know approximately when noon is at KSC it occurs for the first time 0d 0h 15m 0s  but only approximately based on observation  that would put the first sun rise at approximately at  0d 4h 30m 0s  @NathanKell  perhaps you could shed some light on this.  it is not like a can take a sextant into the game to measure this exactly  though solar panels may provide a solution since they trigger nearly instantaneously.  I will want to at least know to the nearest second.  Otherwize it could be calculation breaking.

    2. (See 52 other replies to this status update)

  19. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      Yes I can confirm this to be true... oh doh I was over complicating it... but wait you still need to know when sunrise will occur at your location which means you still need to know the greenwich equivalent... and what about the other planets they will still need their own greenwich equivalent,  unless the game broadcasts the solar hour angle for all the planets.

    2. (See 52 other replies to this status update)

  20. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      Nope did not take me long to realize there is an additional snag in all this even before I crunch some more numbers.  Time!  You don't need to just know where you are  on a planet you need to know where you are relative to Kerbin time 0d 0h 0m 0s and relative to a longitudinal point on the planet whose position relative to the sun at that time is known.  This must be known for every planet with atmo. (Sol is fully static with no rotation at all?)  Also unless the rotational period is exactly a multiple of orbital period there will be no simplifying this other than to calculate the least common factor of the two. (maybe all of this has already been done, part of me says yes but I do not know where to find it.

    2. (See 52 other replies to this status update)

  21. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      In any case thanks for all the help I am going to go spend some time playing with all this info so may be several days before I have many more questions on this.  Then again it may be five min after I start trying to apply this info.

    2. (See 52 other replies to this status update)

  22. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

       

      Quote

      I got a lot of help from Nathan.

      haha some times it seems as if every single person who plays or mods the game got their science info from Nathan.  One might begin to think Squad gets their science info from Nathan,.. Oh wait they do :)

       

    2. (See 52 other replies to this status update)

  23. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      @Overengineer1 you are sooo far ahead of me on this.  But I think I begin to see the challenge and why the whole trajectory would need to be simulated and the optimal solution found. The number of variables that come into play start to be a bit overwhelming.  Which makes your work all the more amazing.  I am going to say that this has been very enlightening to me.   Thank you for your patience.

       

       

    2. (See 52 other replies to this status update)

  24. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      Quote

      Since temperature varies on a 6-hour cycle, the atmosphere also fluctuates on the same 6-hour cycle

      Yes, relative to the surface of Kerbin this is true.  But relative to the Sol it never varies.  It is as if the Atmosphere is tidally locked with the sun.  Your explanation above would seem to confirm this.

      In any case wow you must have spent hours working all of this out.  Bravo.  Excellent and very understandable.  Thank you Thank you, Thank You.  I wish I could repay you.  You should really share all of this with the community as a whole, I can't be the only one who could benefit from the new understanding.

       

      Quote

      There's a way but I don't know how to do it.  NathanKell knows how, so you might try asking him.

      Will do.

    2. (See 52 other replies to this status update)

  25. mcirish3

    Hi OhioBob. 

    Nathankell suggested I contact you about the nature of the atmosphere in KSP...so here I am.  I am at this time working on the static pressures (will tackle static temp after and am collecting data for both) on Kerbin using graphotron 2000.  I really don't know much since I have only run numbers on one csv data output (though I have several more wait for analysis) at this point but I will give you my best guess on how I expect static pressure on kerbin to work.

    I am guessing that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year. (which is to say there should be a174 mph wind at the equator but ... there is no wind in ksp) In other words the temp and pressure above the point 0o 0' 0" latitude and 0o 0' 0" longitude at noon each kerbin day has the highest Temp and lowest pressure at the surface of any point on kerbin at that time.  I am further guessing that the pressure with altitude follows the following formula  Atmospheric Pressure= Caltitude*e-(A)*Altitude(m)
    Pressure versus change in longitude with a fixed time and fixed altitude would follow;  pressure=Clogitude*cos(beta)

    and pressure versus change in latitude with a fixed time and fixed altitude would be;   pressure=Clatitude*sin(theta/2)
     

    (this should all be in spherical coordinates)

    Am I even in the right ball park?  Please feel free to correct me or to tell me I am crazy.   I really am looking to derive, from experimental data if necessary a three dimensional formula that will yield the static air pressure (and temperature eventually) for any place and time on kerbin and eventually the other planets with atmospheres as well.  

    I of course don't have a strong need to do all the work myself, no need to reinvent the wheel if the work is already done, so if you have already figured all this out please feel free to share.
    Much of my calculus is very rusty so please go easy on me.

    Looking forward to your thoughts.

     

    and Thank You,

    mcirish3

    1. mcirish3

      mcirish3

      Am I still right in thinking  that all though the planet rotates every 6 hours the Atmosphere behaves as if it only rotates once a year?  I still don't see anything that would say otherwise.

    2. (See 52 other replies to this status update)

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