HAWAIIAN MOORING DATA NOTES (97b)
PIs: Mark Abbott and Ricardo Letelier (OSU)
processed by: Jasmine S. Bartlett
January 26 1998


Mooring : HALE ALOHA - 2
Location : near Stn. Aloha, Hawaii (22o 30' N, 158o W)
Period : May 18 1997 - Nov 28 1997
Instrument : OCI-200 irradiance meter (Satlantic, Inc.)
Measurements : downwelling irradiance at seven wavebands
Depth of instrument : 25 m
Data files : aloha97b.dat
Calibration file : hale.cal


Data Structure
column 1 	: decimal day (Pacific 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 	: Ed510 (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)


Quality Control

saturated irradiance values were removed from the data set

one anomalous data point on day 140 (at 8:33 am local time) 
was removed

data were removed from after day 260 (September 17) because of 
indications of biofouling (the shorter wavelength irradiances 
showed a sharp decrease, while the longer wavelength 
irradiances (Ed670 and Ed683) showed an increase).