Seasonal variability of the surface chlorophyll "a" in the Drake Passage

被引：11

作者：

Demidov, A. B. ^{[1
]}

Gagarin, V. I. ^{[1
]}

Grigoriev, A. V. ^{[1
]}

机构：

[1] Russian Acad Sci, PP Shirshov Oceanol Inst, Moscow, Russia

来源：

OCEANOLOGY | 2010年 / 50卷 / 03期

关键词：

SOUTHERN-OCEAN PRODUCTIVITY; WESTERN BRANSFIELD STRAIT; ANTARCTIC POLAR FRONT; PHYTOPLANKTON BIOMASS; TEMPORAL VARIABILITY; ATLANTIC SECTOR; AUSTRAL SUMMER; WATER MASSES; SCOTIA SEA; SOUTHWESTERN ATLANTIC;

D O I：

10.1134/S0001437010030045

中图分类号：

P7 [海洋学];

学科分类号：

0707 ;

摘要：

The seasonal variability of the surface chlorophyll "a" (Chl-s) was studied for five different hydrological areas in the Drake Passage. The data were collected both in the field (December 2001-March 2002, and November 2007) and by satellite observations. One maximum of Chl-s was registered for the area northward of the Antarctic Polar Front in November 2007. This maximum moves southwards to the Antarctic and Continental Antarctic regions in December and January, respectively. The major factors affecting the phytoplankton growth were analyzed, namely, the decrease of the mixed water layer's depth due to jogging during the austral late spring and summer and seasonal water temperature increase. The comparison of the field and satellite data allows us to conclude that the standard OC4v4 algorithm usually underreports the Chl-s concentration when it exceed 0.2 mg m(-3).

引用

页码：327 / 341

页数：15

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