HAWAIIAN MOORING DATA NOTES (99)
PIs: Mark Abbott and Ricardo Letelier (OSU)
processed by: Jasmine S. Bartlett
June 14, 1999


Mooring : HALE ALOHA - 5
Location : near Stn. Aloha, Hawaii (22o 30' N, 158o W)
Period : Nov 17 1998 - May 12 1999
Instrument : OCI-200 irradiance meter SN 065 (Satlantic, Inc.) 
Measurements : downwelling irradiance at seven wavebands
Depth of instrument : 25 m
Data files : aloha99.dat
Calibration file : hale99sd.cal


Data Structure
column 1 	: decimal day (Hawaii Standard Time, 
no daylight savings corrections required)
column 2 	: Ed412 (uW cm-2 nm-1)
column 3 	: Ed443 (uW cm-2 nm-1)
column 4 	: Ed490 (uW cm-2 nm-1)
column 5 	: Ed700 (uW cm-2 nm-1)
column 6 	: Ed555 (uW cm-2 nm-1)
column 7 	: Ed670 (uW cm-2 nm-1)
column 8 	: Ed683 (uW cm-2 nm-1)


Calibration File structure
column 1 	: center wavelength (nm)
column 2 	: calibration factor (uW cm-2 nm-1/count)
column 3 	: dark value (counts)
column 4 	: immersion correction

Quality Control

Note that the dark values in the calibration file were taken from 
the measured minimum night values during the deployment.  These 
dark values differed from those found during the pre-deployment 
calibration, which yielded negative irradiances when used.  No further 
processing was done to these data.