статья в журнале

En

Oceanology

ISSN:0001-4370
eSSN:1531-8508

2025

10.1134/S0001437024700711

UWKPQH

Data from 119 Bio-Argo floats for 2010–2021 are used to study the spatial and temporal variability of the vertical distribution of the chlorophyll a (Chl) concentration in various areas of the Southern Ocean. The results show that the variability of Chl is significantly influenced by two physical mechanisms of macronutrient supply, separated in time and space. In the Antarctic summer (January–March), the maximum increase in Chl is observed in three areas of intense offshore fluxes of melting ice from Antarctica (Weddell Sea, Amundsen Sea and the eastern part of the Indian Ocean sector). The greatest increase is recorded in the upper 0–50 layer m, with a maximum in the western part of the Atlantic sector of the Southern Ocean. The minimum values during this period in the upper layer are observed in the central part of the Pacific and Indian oceans. In the Antarctic spring (October–December), the maximum integrated Chl values are concentrated in the cyclonic shear zone on the southern periphery of the Antarctic Circumpolar Current...

SOUTHERN OCEAN, ANTARCTICA, CHLOROPHYLL A CONCENTRATION, BIO-ARGO FLOATS, SUBSURFACE CHL MAXIMUM, ICE EDGE BLOOMS, ICE REMOVAL, UPWELLING, ACC

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