Aspects of satellite and subsatellite studies of chlorophyll-a in Arctic waters

• Published in: IOP Conference Series: Earth and Environmental Science
• Main Authors: Kalinka, O P, Vodopianova, V V
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: IOP Publishing 2022
• Subjects: Arctic; Barents Sea
• Online Access: http://dx.doi.org/10.1088/1755-1315/981/4/042071; https://iopscience.iop.org/article/10.1088/1755-1315/981/4/042071; https://iopscience.iop.org/article/10.1088/1755-1315/981/4/042071/pdf

Abstract 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.