SRRL BMS Raw Data: Preset Calculations
January 13, 1999 to July 31, 2000
| Calculation name | Equation | Condition to compute | Value during failed condition |
|---|---|---|---|
| Albedo | {Reflected PSP [W/m^2]}/{Global PSP [W/m^2]} | (({Reflected PSP [W/m^2]}>0)&&({Global PSP [W/m^2]}>5)) | 0 |
| Global (RG780/PSP) | {Global RG780 PSP [W/m^2]}/{Global PSP [W/m^2]} | (({Global RG780 PSP [W/m^2]}>0)&&({Global PSP [W/m^2]}>5)) | 0 |
| Direct (RG780/NIP1) | {Direct RG780 NIP [W/m^2]}/{Direct NIP #1 [W/m^2]} | (({Direct RG780 NIP [W/m^2]}>0)&&({Direct NIP #1 [W/m^2]}>5)) | 0 |
| Global (UV/PSP) | {Global UV [W/m^2]}/{Global PSP [W/m^2]} | (({Global UV [W/m^2]}>0)&&({Global PSP [W/m^2]}>5)) | 0 |
| Direct (UV/NIP1) | {Direct UV [W/m^2]}/{Direct NIP #1 [W/m^2]} | (({Direct UV [W/m^2]}>0)&&({Direct NIP #1 [W/m^2]}>5)) | 0 |
| Global (LI200/PSP) | {Global LI-200 [W/m^2]}/{Global PSP [W/m^2]} | (({Global LI-200 [W/m^2]}>0)&&({Global PSP [W/m^2]}>5)) | 1 |
| Direct (NIP2/NIP1) | {Direct NIP #2 [W/m^2]}/{Direct NIP #1 [W/m^2]} | (({Direct NIP #2 [W/m^2]}>5)&&({Direct NIP #1 [W/m^2]}>5)) | 1 |
| Temporary 2a | {Diffuse SD PSP [W/m^2]}-(46.36+0.18148*{Net Infrared [W/m^2]}-0.15487*{Downwelling IR [W/m^2]}-0.04186*(({Downwelling IR [W/m^2]}/5.669E-8)**0.25-(({Downwelling IR [W/m^2]}-{Net Infrared [W/m^2]})/5.669E-8)**0.25)+0.64744*{Roof Temp [deg C]}-0.1444*{Avg Wind Speed @ 33ft [m/s]}-0.00613*{Relative Humidity [%]}) | 1 | 0 |
| Temporary 2b | {Diffuse SD PSP [W/m^2]}-(-80.03463+0.1526*{Net Infrared [W/m^2]}-0.07121*{Downwelling IR [W/m^2]}+5.99488*{Dw IR Dome Temp [deg K]}-5.34771*{Dw IR Case Temp [deg K]}-0.10602*{Avg Wind Speed @ 33ft [m/s]}-0.00135*{Roof Temp [deg C]}-0.00006*{Relative Humidity [%]}-0.28379*({Downwelling IR [W/m^2]}/5.669E-8)**0.25) | 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.