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Proceedings Paper

Validation of ocean color sensors using a profiling hyperspectral radiometer
Author(s): M. E. Ondrusek; E. Stengel; M. Ampollo Rella; W. Goode; S. Ladner; M. Feinholz
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Paper Abstract

Validation measurements of satellite ocean color sensors require in situ measurements that are accurate, repeatable and traceable enough to distinguish variability between in situ measurements and variability in the signal being observed on orbit. The utility of using a Satlantic Profiler II equipped with HyperOCR radiometers (Hyperpro) for validating ocean color sensors is tested by assessing the stability of the calibration coefficients and by comparing Hyperpro in situ measurements to other instruments and between different Hyperpros in a variety of water types. Calibration and characterization of the NOAA Satlantic Hyperpro instrument is described and concurrent measurements of water-leaving radiances conducted during cruises are presented between this profiling instrument and other profiling, above-water and moored instruments. The moored optical instruments are the US operated Marine Optical BuoY (MOBY) and the French operated Boussole Buoy. In addition, Satlantic processing versions are described in terms of accuracy and consistency. A new multi-cast approach is compared to the most commonly used single cast method. Analysis comparisons are conducted in turbid and blue water conditions. Examples of validation matchups with VIIRS ocean color data are presented. With careful data collection and analysis, the Satlantic Hyperpro profiling radiometer has proven to be a reliable and consistent tool for satellite ocean color validation.

Paper Details

Date Published: 23 May 2014
PDF: 12 pages
Proc. SPIE 9111, Ocean Sensing and Monitoring VI, 91110Y (23 May 2014); doi: 10.1117/12.2052933
Show Author Affiliations
M. E. Ondrusek, NOAA/NESDIS (United States)
E. Stengel, NOAA/NESDIS (United States)
M. Ampollo Rella, NATO Science and Technology Organization (Italy)
W. Goode, U.S. Naval Research Lab. (United States)
S. Ladner, U.S. Naval Research Lab. (United States)
M. Feinholz, Moss Landing Marine Labs. (United States)

Published in SPIE Proceedings Vol. 9111:
Ocean Sensing and Monitoring VI
Weilin W. Hou; Robert A. Arnone, Editor(s)

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