Determination of the chlorophyll a concentration by MODIS-Aqua and VIIRS satellite radiometers in Eastern Arctic and Bering Sea
| Autor: | P. A. Salyuk, O. A. Bukin, A. R. Gorbushkin, J. V. Shambarova, E. B. Sokolova, A. Yu. Mayor, Igor E. Stepochkin |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Atmospheric Science
Chlorophyll a 010504 meteorology & atmospheric sciences 010505 oceanography Oceanography 01 natural sciences chemistry.chemical_compound Colored dissolved organic matter chemistry Arctic Ocean color Dissolved organic carbon Phytoplankton Environmental science Seawater Satellite 0105 earth and related environmental sciences |
| Zdroj: | Izvestiya, Atmospheric and Oceanic Physics. 52:988-998 |
| ISSN: | 1555-628X 0001-4338 |
| Popis: | The waters of the Bering and Chukchi seas, as well as the De Long Strait, are investigated based on the data obtained in August 2013 during the scientific expedition of the Far Eastern Floating University on the research vessel Professor Khlyustin. Chlorophyll a concentrations calculated from MODIS-Aqua and VIIRS satellite data by ocean color and obtained by means of shipboard flow-through fluorometric measurements are comparatively analyzed. Vessel data are corrected for standard spectrophotometric measurements and the vertical depth distribution of phytoplankton. It has been found that, in the waters of the Eastern Arctic, satellite radiometers showed overestimated chlorophyll a concentrations in the upper seawater layer visible from the satellite. This is associated with the additional contribution of colored dissolved organic matter in the sea surface color. In the De Long Strait, satellite measurements incorrectly estimate the depth integrated chlorophyll a concentration, since the bulk of phytoplankton cells at a chlorophyll a concentration of 10–20 g/L is at depths of 25–30 m with luminosity of 5%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink