# Calibration file for PRR-620 Spectroradiometer # Calibration Date: 30 Nov 2004 # Kevin L. Mahoney: 17 Feb 2005 # # Format of this file was chosen to be consistent with Biospherical cal file # # First line has one entry for each address tag, specifying number of # channels for that address tag # # There follows one line of calibration data for each channel as follows: # bank chan type name a b c cmin cmax units # a=0.0, b = calibration factory-dry, c = calibration voltage dark # # bank: Bank number, i.e., the address tag for a given bank of channels # chan: Channel number # type: Type of channel, as follows: 0 = unused, 1 = down irrad, 2 = analog, # 3 = up radiance, 4 = up irrad, 5 = quadratic, 6 = Old Satlantic cals # 7 = New Satlantic cals (b is multiplier) or MCP # Once a count is converted to a voltage, via fixed algorithm, # the voltage is converted to given units as follows: # Type 0: not converted or reported # Types 1 - 4: value = (volts - c) / b (a is unused) # Type 5: value = a + (b * volts) + (c * volts^2) # Type 6: value = a * (volts - c) / b # Type 7: value = a * b * (volts - c) # name: Name of channel # a: Calibration "a" value, unused for types 1-4 # b: Calibration "b" value # c: Calibration "c" value, unused for type 6 # cmin: unused # cmax: unused # units: Units that value decodes into # Surface instrument, Serial 19612, 0 1 1 Ed412 0.0 -0.034399 0.000566 0 10 uwatts/cm2/nm 0 2 1 Ed443 0.0 -0.033954 0.000034 0 10 uwatts/cm2/nm 0 3 1 Ed490 0.0 -0.035786 0.000317 0 10 uwatts/cm2/nm 0 4 1 Ed510 0.0 -0.033832 0.000348 0 10 uwatts/cm2/nm 0 5 1 Ed555 0.0 -0.034917 0.000321 0 10 uwatts/cm2/nm 0 6 1 Ed656 0.0 -0.031496 0.000310 0 10 uwatts/cm2/nm 0 7 2 PAR 0.0 -14.86680 0.000899 0 10 uEinsteins/cm2/sec 0 8 2 Gnd 0.0 1.0 0.000494 0 10 volts 0 9 2 Diode 0.0 0.1 0.0 0 10 degC 0 10 2 DGnd 0.0 1.0 0.0 0 10 volts 0 11 2 Pitch 0.0 0.0430 2.6995 0 10 degrees 0 12 2 Roll 0.0 0.0420 2.6560 0 10 degrees