RAW DATA: PRESET CALCULATIONS
June 1, 2012 to Present

Calculation nameEquationCondition to computeValue during failed condition
Sky Temp (PIR) [+/-15 deg C]({Downwelling IR PIR Vent [W/m^2]}/(0.80*5.6704E-8))**0.25-273.1510
Ground Temp (PIR) [+/-5 deg C]({Upwelling IR PIR [W/m^2]}/(0.92*5.6704E-8))**0.25-273.1510
Sky Temp (CNR1) [+/-15 deg C]({Downwelling IR CG3 (CNR1) [W/m^2]}/(0.80*5.6704E-8))**0.25-273.1510
Ground Temp (CNR1) [+/-5 deg C]({Upwelling IR CG3 (CNR1) [W/m^2]}/(0.92*5.6704E-8))**0.25-273.1510
Sky Temp (CG4) [+/-15 deg C]({Downwelling IR CG4 Vent [W/m^2]}/(0.80*5.6704E-8))**0.25-273.1510
Langley TWC 500nmlog({500nm TWC Photometer [V]})(({500nm TWC Photometer [V]}>0)&&({Airmass}>0))(missing)
Langley POM 315nmlog({315nm POM-01 Photometer [nA]})(({315nm POM-01 Photometer [nA]}>0)&&({Airmass}>0))(missing)
Langley POM 400nmlog({400nm POM-01 Photometer [uA]})(({400nm POM-01 Photometer [uA]}>0)&&({Airmass}>0))(missing)
Langley POM 500nmlog({500nm POM-01 Photometer [uA]})(({500nm POM-01 Photometer [uA]}>0)&&({Airmass}>0))(missing)
Langley POM 675nmlog({675nm POM-01 Photometer [uA]})(({675nm POM-01 Photometer [uA]}>0)&&({Airmass}>0))(missing)
Langley POM 870nmlog({870nm POM-01 Photometer [uA]})(({870nm POM-01 Photometer [uA]}>0)&&({Airmass}>0))(missing)
Langley POM 940nmlog({940nm POM-01 Photometer [uA]})(({940nm POM-01 Photometer [uA]}>0)&&({Airmass}>0))(missing)
Langley POM 1020nmlog({1020nm POM-01 Photometer [uA]})(({1020nm POM-01 Photometer [uA]}>0)&&({Airmass}>0))(missing)
Langley TWC 500nm (Clear)log({500nm TWC Photometer [V]})(({500nm TWC Photometer [V]}>0)&&({Airmass}>0)&&({Broadband Turbidity}<0.1))(missing)
Langley POM 315nm (Clear)log({315nm POM-01 Photometer [nA]})(({315nm POM-01 Photometer [nA]}>0)&&({Airmass}>0)&&({Broadband Turbidity}<0.1))(missing)
Langley POM 400nm (Clear)log({400nm POM-01 Photometer [uA]})(({400nm POM-01 Photometer [uA]}>0)&&({Airmass}>0)&&({Broadband Turbidity}<0.1))(missing)
Langley POM 500nm (Clear)log({500nm POM-01 Photometer [uA]})(({500nm POM-01 Photometer [uA]}>0)&&({Airmass}>0)&&({Broadband Turbidity}<0.1))(missing)
Langley POM 675nm (Clear)log({675nm POM-01 Photometer [uA]})(({675nm POM-01 Photometer [uA]}>0)&&({Airmass}>0)&&({Broadband Turbidity}<0.1))(missing)
Langley POM 870nm (Clear)log({870nm POM-01 Photometer [uA]})(({870nm POM-01 Photometer [uA]}>0)&&({Airmass}>0)&&({Broadband Turbidity}<0.1))(missing)
Langley POM 940nm (Clear)log({940nm POM-01 Photometer [uA]})(({940nm POM-01 Photometer [uA]}>0)&&({Airmass}>0)&&({Broadband Turbidity}<0.1))(missing)
Langley POM 1020nm (Clear)log({1020nm POM-01 Photometer [uA]})(({1020nm POM-01 Photometer [uA]}>0)&&({Airmass}>0)&&({Broadband Turbidity}<0.1))(missing)
Global VIS (PSPV-RG780-TUVR){Global PSP (vent/cor) [W/m^2]}-{Global RG780 PSP (vent/cor) [W/m^2]}-{Global TUVR [W/m^2]}10
Direct VIS (NIP2-RG780-CUV4){Direct NIP #2 [W/m^2]}-{Direct RG780 NIP [W/m^2]}-{Direct TUVR [W/m^2]}10
Effective Net IR (DW PIR){Downwelling IR PIR Vent [W/m^2]}-5.6704E-8*{PIR DW Case Temp [deg K]}**410
Effective Net IR (DW CG4){Downwelling IR CG4 Vent [W/m^2]}-5.6704E-8*{CG4 DW Case Temp [deg K]}**410
Effective Net IR (DW CG3){Downwelling IR CG3 (CNR1) [W/m^2]}-5.6704E-8*{CNR1 Case Temp [deg K]}**410
Wind Direction Delta (6-19ft)abs({Avg Wind Direction @ 6ft [deg from N]}-{Avg Wind Direction @ 19ft [deg from N]})10
Wind Direction Delta (19-22ft)abs({Avg Wind Direction @ 19ft [deg from N]}-{Avg Wind Direction @ 22ft [deg from N]})10
Wind Direction Delta (22-42ft)abs({Avg Wind Direction @ 22ft [deg from N]}-{Avg Wind Direction @ 42ft [deg from N]})10
40-Tilt Incidence Angle [deg](180/3.1415926536)*(acos(cos({Zenith Angle [degrees]}*3.1415926536/180)*cos(-40*3.1415926536/180)+sin(-40*3.1415926536/180)*sin({Zenith Angle [degrees]}*3.1415926536/180)*cos({Azimuth Angle [degrees]}*3.1415926536/180)))(({Zenith Angle [degrees]}>=0)&&({Azimuth Angle [degrees]}>=0))(missing)
RSR Estimated Pressure [mBar]1013.25*exp((-0.02896*9.8*1829)/(8.314*({Deck Dry Bulb Temp [deg C]}+273.15)))10

Preset calculations are performed on the fly, as requested by user.
Calculation is only performed when condition equation is true, otherwise the failed condition value is output
Plots using a Langley calculation will be plotted versus airmass (instead of time) and will also include a linear fit with slope & intercept.
Wind Direction Deltas are special cases that go beyond the equations listed above to keep the data in the 0 to 180 degree realm.

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