Some XBT-observations on the thermal structure of theWarmwassersphäre in equatorial and lower latitudes of the eastern Atlantic.

Knoll, Michaela, Zenk, Walter and Bauer, Eva (1982) Some XBT-observations on the thermal structure of theWarmwassersphäre in equatorial and lower latitudes of the eastern Atlantic. Deutsche Hydrographische Zeitschrift, 35 (2). pp. 73-81. DOI 10.1007/BF02226270.

[img]
Preview
Text
Knoll_DHZ.pdf - Reprinted Version
Available under License Creative Commons: Attribution 3.0.

Download (554Kb) | Preview

Supplementary data:

Abstract

Two megameter long XBT sections passing through the Atlantic between the Iberian Peninsula and the equatorial Brazilian shelf, and between the Peninsula and the Cape region of South Africa were obtained during supply cruises to the antarctic in November 1980 and March 1981. Most of the individual probes reached an observation depth of nearly 800 m allowing statements on the thermal stratification and zonation of theWarmwassersphäre in the open ocean. Our new data are compared with a number of earlier long sections. As a general result we identify five zones dividing different hydrographic regions. Zone 1 is characterized by the clear influence of the Mediternean Undercurrent on the lower boundary of theWarmwasserphäre creating nearly thermostatic conditions below 300 m off Portugal. The adjacent zone 2 is identical with the Subtropical Convergence, where theWarmwassersphäre reaches its maximum depth (15°C isotherm at about 300 m). We call the equatorial region zone 3 and present an improved scheme of its current system and its thermal stratification. Zone 4 is marked by the Benguela Current and its northern extension. In a final zone 5 we show the influence of the Agulhas Current extension on the stratification.

Document Type: Article
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-PO Physical Oceanography
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1007/BF02226270
ISSN: 0012-0308
Date Deposited: 10 May 2016 13:06
Last Modified: 10 May 2016 13:06
URI: http://oceanrep.geomar.de/id/eprint/32820

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...