SRRL BMS Raw Data: Preset Calculations
January 1, 2015 to October 3, 2015
Calculation name | Equation | Condition to compute | Value during failed condition |
---|---|---|---|
Sky Temp (PIR) [+/-15 deg C] | ({Downwelling IR PIR Vent [W/m^2]}/(0.80*5.6704E-8))**0.25-273.15 | 1 | 0 |
Ground Temp (PIR) [+/-5 deg C] | ({Upwelling IR PIR [W/m^2]}/(0.92*5.6704E-8))**0.25-273.15 | 1 | 0 |
Sky Temp (CG4) [+/-15 deg C] | ({Downwelling IR CG4 Vent [W/m^2]}/(0.80*5.6704E-8))**0.25-273.15 | 1 | 0 |
Ground Temp (CG3) [+/-5 deg C] | ({Upwelling IR CG3 [W/m^2]}/(0.92*5.6704E-8))**0.25-273.15 | 1 | 0 |
Irrad Mod Rnet (Diffuse CMP11) | 109.62*({Diffuse CMP11 [mV]}-0.000392*{Effective Net K&Z [W/m^2]}) | 1 | 0 |
Irrad (Research 3) | 2.2*{Research 3}-200 | 1 | 0 |
Irrad Corr (Research 3) | 2.2*({Research 3}-50.78*0.000205*{Effective Net K&Z [W/m^2]})-200 | 1 | 0 |
Research (Tc-Te) | {PIR DW Case Temp [deg K]}-({Downwelling IR PIR Vent [W/m^2]}/5.6704E-8)**0.25 | 1 | 0 |
Research (Moist Flag) | 1 | (({Deck RH [%]}>=80)&&(({PIR DW Case Temp [deg K]}-({Downwelling IR PIR Vent [W/m^2]}/5.6704E-8)**0.25)<=6)) | 0 |
Effective Net IR (Res Thm 1) | {Downwelling IR PIR Vent [W/m^2]}-5.6704E-8*{Research Thm 1}**4 | 1 | 0 |
Effective Net IR (Res Thm 2) | {Downwelling IR PIR Vent [W/m^2]}-5.6704E-8*{Research Thm 2}**4 | 1 | 0 |
Effective Net IR (Res Thm 3) | {Downwelling IR PIR Vent [W/m^2]}-5.6704E-8*{Research Thm 3}**4 | 1 | 0 |
Research Corr Irrad | 137.55*({Research 3}-0.00061*({Downwelling IR PIR Vent [W/m^2]}-5.6704E-8*{Research Thm 1}**4)) | 1 | 0 |
Langley TWC 500nm | log({500nm TWC Photometer [V]}) | (({500nm TWC Photometer [V]}>0)&&({Airmass}>0)) | (missing) |
Langley POM 315nm | log({315nm POM-01 Photometer [nA]}) | (({315nm POM-01 Photometer [nA]}>0)&&({Airmass}>0)) | (missing) |
Langley POM 400nm | log({400nm POM-01 Photometer [uA]}) | (({400nm POM-01 Photometer [uA]}>0)&&({Airmass}>0)) | (missing) |
Langley POM 500nm | log({500nm POM-01 Photometer [uA]}) | (({500nm POM-01 Photometer [uA]}>0)&&({Airmass}>0)) | (missing) |
Langley POM 675nm | log({675nm POM-01 Photometer [uA]}) | (({675nm POM-01 Photometer [uA]}>0)&&({Airmass}>0)) | (missing) |
Langley POM 870nm | log({870nm POM-01 Photometer [uA]}) | (({870nm POM-01 Photometer [uA]}>0)&&({Airmass}>0)) | (missing) |
Langley POM 940nm | log({940nm POM-01 Photometer [uA]}) | (({940nm POM-01 Photometer [uA]}>0)&&({Airmass}>0)) | (missing) |
Langley POM 1020nm | log({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 (CM22-RG780-TUVR) | {Global CMP22 (vent/cor) [W/m^2]}-{Global RG780 PSP [W/m^2]}-{Global TUVR [W/m^2]} | 1 | 0 |
Direct VIS (CH1-RG780-TUVR) | {Direct CHP1-1 [W/m^2]}-{Direct RG780 NIP [W/m^2]}-{Direct TUVR [W/m^2]} | 1 | 0 |
Wind Direction Delta (6-19ft) | abs({Avg Wind Direction @ 6ft [deg from N]}-{Avg Wind Direction @ 19ft [deg from N]}) | 1 | 0 |
Wind Direction Delta (19-22ft) | abs({Avg Wind Direction @ 19ft [deg from N]}-{Avg Wind Direction @ 22ft [deg from N]}) | 1 | 0 |
Wind Direction Delta (22-42ft) | abs({Avg Wind Direction @ 22ft [deg from N]}-{Avg Wind Direction @ 42ft [deg from N]}) | 1 | 0 |
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))) | 1 | 0 |
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.