The polarization correction for the Moderate-Resolution Imaging Spectroradiometer (MODIS) instruments on the Terra and Aqua satellites is described. The focus is on the prelaunch polarization characterization and on the derivation of polarization correction coefficients for the processing of ocean color data. The effect of the polarization correction is demonstrated. The radiances at the top of...

From a true colour image of the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) onboard the Orbview-2 satellite, we observed two packets of orderly wave clouds on two sides of Hainan Island in the South China Sea. A packet of 23 wave clouds stretches southward from the island. A second packet of more than 20 wave clouds stretches north-eastward off the north-east coast of the island. The concav...

This paper describes the combination of terrestrial vegetation observations from two sensors, providing a historical dataset used for an in-depth analysis of the corresponding spatio-temporal patterns. The Fraction of Absorbed Photosynthetically Active Radiation (FAPAR) is an important variable suitable for regional to large-scale monitoring of climate impacts on vegetation. In this work, we cr...

[1] For the first time it is demonstrated that with the QuikSCAT scatterometer it is possible to detect natural surface films resulting from enhanced biological activity in the ocean. It is shown for two regions in the Norwegian and Baltic Sea that areas of strongly reduced Normalized Radar Cross Section (NRCS) are associated with areas of enhanced chlorophyll-a concentration as evidenced by qu...

[1] The impact of smoke aerosols generated from biomass burning activities in Southeast Asia on the total (i.e., direct and indirect effects) reflected solar and emitted thermal radiation from clouds was investigated using satellite data. We combine narrowband radiance measurements, from ultraviolet to near-infrared wavelengths (e.g., SeaWiFS and TOMS), with broadband irradiance measurements (e...

Today global warming affects all environments including coastal marine environments. Climate change also the development and proliferation of phytoplankton groups often leading to massive production in waters. Itis with this mind that study on determination from optical properties Ivorian waters was initiated.This showed a great diversity domain during years 2010 2020. The data used these studi...

* Corresponding author: Birgit Heim; [email protected] ** This research was supported by the European Commission under contract EVK2-CT-2000-00057. Abstract SeaWiFS data (2001-2002) of Lake Baikal (Siberia, RU) has been investigated to support multi-disciplinary limnological investigation within the frame of the paleoclimate project CONTINENT. Using adapted SeaDAS processing for Lake Baikal, th...

This report aims to critically review the work carried out to-date on the assimilation of data into ocean ecosystem and coupled bio-physical models. The review is prompted by the newly available ocean colour data from SeaWiFS and OCTS, and their potential use for data assimilation to improve both the models and their predictive capabilities. In addition, some initial results on the comparison o...

The atmospheric correction algorithm employed by the NASA Ocean Biology Processing Group requires an assumption of negligible water-leaving reflectance in the near-infrared region of the spectrum. For waters where this assumption is not valid, an optical model is used to estimate near-infrared water-leaving reflectance. We describe this optical model as implemented for the sixth reprocessing of...

Several satellite-borne ocean colour Earth observation (EO) sensors are presently collecting data on an operational basis, including the Envisat MERIS sensor. This study aims at detecting differences in ocean colour EO sensor performances for ocean monitoring and in particular the study of algal bloom situations. The motivation for the present study is to explore how data from different sensors...