# readme.specprr # # Format of the specprr calibration files were 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 # # 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 * volts^2) + (b * volts) + c # 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 # cmin: unused # cmax: unused # units: Units that value decodes into specprr configuration files follow this naming scheme: satlan.[4 or 5-digit serial number].[type 600 or 620].[date of calibration] For example: prr-600 # 19607 calibrated on 29 April 1999 would be named: specprr.19607.600.19990429 a prr-600 will have use channels 1-10(Ed) and 1-8(Lu). channels 11-16 will sometimes be used by MCP's (MBARI's configuration's have one at 10m and one at 20m). A prr-620 will have use channels 1-12 only. In addition, pointer files are named by the scheme: specprr.[mooring name].[date of instrument swap] For example: a pointer file for m1 deployed on 12 Dec 1995 would be named: specprr.m1.19951210