In situ Validation of OCTS

by Sean Bailey - Futuretech Corporation

Due to the short lifespan of the ADEOS platform, the number of in situ validation points for OCTS is limited. The data archived in SeaBASS that cover the time period of OCTS measurements were augmented by in situ measurements provided by NASDA. These combined data sets resulted in a final validation set of 35 points (at 490 nm). The table below show the results for 412, 443, 490, 520, and 565 nm as well as chlorophyll a.

Measurement	Satellite to In Situ ratio	Standard Deviation	Coefficient of Variation	N	In Situ Range	Satellite Range
nLw 412 nm	1.869	1.955	1.046	23	0.129 - 2.014	0.379 - 1.703
nLw 443 nm	1.599	1.809	1.131	27	0.109 - 1.800	0.081 - 1.544
nLw 490 nm	1.238	1.053	0.850	35	0.165 - 1.548	0.172 - 1.064
nLw 520 nm	1.764	0.957	0.542	13	0.163 - 0.691	0.273 - 0.736
nLw 565nm	1.687	0.762	0.451	10	0.130 - 0.403	0.227 - 0.611
Chlorophyll a	2.645	2.198	0.830	14	0.280 - 10.453	0.251 - 15.480