Coastal cooling and increased productivity in the main upwelling zone off Peru since the mid-twentieth century

Details Coastal cooling and increased productivity in the main upwelling zone off Peru since the mid-twentieth century Coastal cooling and increased productivity in the main upwelling zone off Peru since the mid-twentieth century

Apr 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011georl..3807603g&link_type=abstract

Geophysical Research Letters, Volume 38, Issue 7, CiteID L07603

Mathematics

Logic

3

Global Change: Impacts Of Global Change (1225, 4321), Oceanography: General: Upwelling And Convergences (4964), Oceanography: Biological And Chemical: Biogeochemical Cycles, Processes, And Modeling (0412, 0414, 0793, 1615, 4912)

Scientific paper

We reconstructed a high-resolution, alkenone-based sea surface temperature (SST) record spanning the last ca. 150 years, from a sediment core retrieved within the main upwelling zone off Peru. A conspicuous SST decline is evidenced since the 1950s despite interdecadal SST variability. Instrumental SST data and reanalysis of ECMWF ERA 40 winds suggest that the recent coastal cooling corresponds mainly to an intensification of alongshore winds and associated increase of upwelling in spring. Consistently, both proxy and instrumental data evidence increased productivity in phase with the SST cooling. Our data expand on previous reports on recent SST cooling in other Eastern Boundary upwelling systems and support scenarios that relate coastal upwelling intensification to global warming. Yet, further investigations are needed to assess the role of different mechanisms and forcings (enhanced local winds vs. spin-up of the South Pacific High Pressure cell).

Affiliated with

Also associated with

No associations

Rating

Coastal cooling and increased productivity in the main upwelling zone off Peru since the mid-twentieth century does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Coastal cooling and increased productivity in the main upwelling zone off Peru since the mid-twentieth century, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coastal cooling and increased productivity in the main upwelling zone off Peru since the mid-twentieth century will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-766220