Seasonal variability and inter-annual anomalies of hydrooptical characteristics, chlorophyll "a" concentration, and temperature on the Black Sea surface in 2017

Yuriy V. Artamonov; Alexandr A. Latushkin; Elena E. Skripaleva; Alexandr V. Fedirko

doi:10.1117/12.2503294

13 December 2018 Seasonal variability and inter-annual anomalies of hydrooptical characteristics, chlorophyll "a" concentration, and temperature on the Black Sea surface in 2017

Yuriy V. Artamonov, Alexandr A. Latushkin, Elena E. Skripaleva, Alexandr V. Fedirko

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Proceedings Volume 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 108333J (2018) https://doi.org/10.1117/12.2503294
Event: XXIV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2018, Tomsk, Russian Federation

Abstract

On the basis of daily means of sea surface temperature, concentration of chlorophyll "a", diffuse attenuation coefficient K_d(490) and remote sensing reflectance R_rs(555) from the array of satellite measurements with high spatial resolution COPERNICUS spatial-temporal features of seasonal and inter-annual variability of these parameters on the Black Sea surface analyzed. Shown, that in 2017, the main maximums of the Chl-a concentration and the coefficients of diffuse attenuation K_d(490) were observed in November-December. The second maximum of Chl-a and K_d(490) in the northern coastal zone of the sea was observed from February to June, in the in the deep sea – from February to March, near the sea southern coasts – from February to April. The main maximum of remote sensing reflectance R_rs(555) was observed in June-July. Shown, that in 2017 the sea surface temperature was higher than the climatic norm, the largest anomalies were observed mainly on the northwestern shelf and in the zone of the Eastern large-scale cyclonic gyre. Anomalies of Chl-a and K_d(490) during the year were predominantly negative, and the appearance of positive anomalies was observed in April to the west and to the east from the Crimean coasts. The R_rs(555) values for almost the whole year were close to the climatic norm except for June, when they were several times higher than climatic values.

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Yuriy V. Artamonov, Alexandr A. Latushkin, Elena E. Skripaleva, and Alexandr V. Fedirko "Seasonal variability and inter-annual anomalies of hydrooptical characteristics, chlorophyll "a" concentration, and temperature on the Black Sea surface in 2017", Proc. SPIE 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 108333J (13 December 2018); https://doi.org/10.1117/12.2503294

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KEYWORDS

Climatology

Reflectivity

Remote sensing

Signal attenuation

Satellites

Ocean optics

Environmental sensing

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