Mathematics – Logic
Scientific paper
Aug 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002georl..29o..31f&link_type=abstract
Geophysical Research Letters, Volume 29, Issue 15, pp. 31-1, CiteID 1741, DOI 10.1029/2002GL015062
Mathematics
Logic
2
Oceanography: General: Climate And Interannual Variability (3309), Oceanography: General: Water Masses, Oceanography: Biological And Chemical: Chemical Tracers, Information Related To Geographic Region: Atlantic Ocean
Scientific paper
We describe results inferred from the tracking, in the tropical Atlantic, of CFC signals linked to the intensification of convection processes in the Labrador Sea since 1988. CFC and hydrology series (1993-1997) off French Guiana (7°N) have been investigated in order to analyse LSW characteristics and their variability. A dramatic increase of the CFC concentrations below 2000 m at the level of the classical LSW has been observed in April 1996. Using CFC and salinity data, the comparison of the (1993-1997) series at 7°N with a (1989-1999) series at 35°W indicates that the sporadic 1996 event has been followed in the equatorial Atlantic in the late 90s by the arrival of a more continuous newly ventilated LSW flow. This study evaluates a transit time from the Labrador basin to the tropics of less than one decade, in agreement with direct current measurements.
Andrié Chantal
Freudenthal Sébastien
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