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In Situ Autonomous Optical Radiometry Measurements for Satellite Ocean Color Validation in the Western Black Sea : Volume 11, Issue 6 (20/12/2014)

By Zibordi, G.

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Book Id: WPLBN0004020829
Format Type: PDF Article :
File Size: Pages 32
Reproduction Date: 2015

Title: In Situ Autonomous Optical Radiometry Measurements for Satellite Ocean Color Validation in the Western Black Sea : Volume 11, Issue 6 (20/12/2014)  
Author: Zibordi, G.
Volume: Vol. 11, Issue 6
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Talone, M., Mélin, F., Berthon, J., & Zibordi, G. (2014). In Situ Autonomous Optical Radiometry Measurements for Satellite Ocean Color Validation in the Western Black Sea : Volume 11, Issue 6 (20/12/2014). Retrieved from

Description: European Commission, Joint Research Centre, Ispra, Italy. The accuracy of primary satellite ocean color data products from the Moderate Resolution Imaging Spectroradiometer on-board Aqua (MODIS-A) and the Visible/Infrared Imager/Radiometer Suite (VIIRS), is investigated in the Western Black Sea using in situ measurements from the Gloria site included in the Ocean Color component of the Aerosol Robotic Network (AERONET-OC). The analysis is also extended to an additional well-established AERONET-OC site in the northern Adriatic Sea characterized by optically complex coastal waters exhibiting similarities with those observed at the Gloria site. Results from the comparison of normalized-water leaving radiance LWN indicate biases of a few percent between satellite derived and in situ data at the center-wavelengths relevant for the determination of chlorophyll a concentration (443–547 nm, or equivalent). Remarkable is the consistency among the annual cycle determined with time series of satellite-derived and in situ LWN ratios at these center-wavelengths. Contrarily, the differences between in situ and satellite-derived LWN are pronounced at the blue (i.e., 412 nm) and red (i.e., 667 nm, or equivalent) center-wavelengths, suggesting difficulties in confidently applying satellite-derived radiometric data from these spectral regions for quantitative analysis in optically complex waters.

In situ autonomous optical radiometry measurements for satellite ocean color validation in the Western Black Sea

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