Open AccessAspects of satellite and subsatellite studies of chlorophyll-a in Arctic waters
Author(s) -
Olga Kalinka,
V. V. Vodopyanova
Publication year - 2022
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/981/4/042071
Subject(s) - satellite , environmental science , chlorophyll a , arctic , latitude , chlorophyll , scale (ratio) , remote sensing , atmospheric sciences , oceanography , geography , geology , biology , geodesy , botany , cartography , engineering , aerospace engineering
Field studies of chlorophyll-a concentrations in high latitudes of Arctic waters (above 75° N) are limited due to the difficult ice conditions, while satellite studies are limited due to high clouds in the region. Full-scale data of chlorophyll concentration in the pelagial of the Barents Sea for 2013-2019 were included in the database at ArcGIS 10 platform. Comparison and correlation analysis of full-scale and satellite data (open NASA databases) at the same points for the same dates were carried out. A general underestimation of the satellite concentrations of chlorophyll-a was revealed for most stations. Time coverage of +/- 3 days produced a significant error in the verification results. Within the 1-2-day difference, the percentage of deviations decreased, but the tendency to underestimate satellite concentrations in relation to in-situ values persisted.