Artículo
Warming trend in Antarctic Bottom Water in the Vema Channel in the South Atlantic
Campos, Edmo; van Caspel, Mathias C.; Zenk, Walter; Morozov, Eugene G.; Frey, Dmitry I.; Piola, Alberto Ricardo
; Meinen, Christopher S.; Sato, Olga T.; Perez, Renellys C.; Dong, Shenfu
![Icon](/themes/CONICETDigital/images/conicet.png)
Fecha de publicación:
10/2021
Editorial:
American Geophysical Union
Revista:
Geophysical Research Letters
ISSN:
0094-8276
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The excess heat absorbed from the atmosphere has increased the temperature in the upper layers of the ocean (<2,000 m). In the abyss, infrequently repeated ship sections, deep Argo float measurements, and sparse moored observations have found signs of warming in the Southwest Atlantic, possibly linked to changes in the Weddell Sea. We present a new moored temperature time series sampled near the bottom in the Vema Channel, from February 2019 to August 2020. Together with historical data, the combined record confirms the warming of the abyssal waters, with an increase of 0.059°C in potential temperature between January 1991 and August 2020, embedded within intense high-frequency variability. Moreover, the data suggest the possibility of an accelerated warming, with a change in the temperature trend from 0.0016°C yr−1, between the early 1990s and 2005, to 0.0026°C yr−1 afterwards.
Palabras clave:
AABW WARMING TREND
,
SOUTH ATLANTIC
,
VEMA CHANNEL
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Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Campos, Edmo; van Caspel, Mathias C.; Zenk, Walter; Morozov, Eugene G.; Frey, Dmitry I.; et al.; Warming trend in Antarctic Bottom Water in the Vema Channel in the South Atlantic; American Geophysical Union; Geophysical Research Letters; 48; 19; 10-2021; 1-15
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