Mathematics – Logic
Scientific paper
Apr 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3307606r&link_type=abstract
Geophysical Research Letters, Volume 33, Issue 7, CiteID L07606
Mathematics
Logic
2
Atmospheric Composition And Structure: Biosphere/Atmosphere Interactions (0426, 1610), Biogeosciences: Biogeochemical Cycles, Processes, And Modeling (0412, 0793, 1615, 4805, 4912), Biogeosciences: Biosphere/Atmosphere Interactions (0315), Biogeosciences: Carbon Cycling (4806), Biogeosciences: Marine Systems (4800)
Scientific paper
The sediment trap experiments have been carried out during the 2001/2002 El Niño/La Niña transition in the monsoon-driven and freshwater influenced upwelling system off South Java. The results indicate that enhanced precipitation rates and associated river discharges increase the CO2-uptake of the biological pump by increasing the organic carbon export and reducing the carbonate precipitation. The freshwater, furthermore, forms a buoyant low salinity surface layer that caps off the nutrient and CO2-rich subsurface waters which shortens the upwelling season during wet La Niña conditions. A reduced capping-effect during dryer El Niño conditions strengthens the upwelling and as shown by our model results increase CO2 emission into the atmosphere along the freshwater influenced continental margins in SE Asia. By contrast El Niño weakens upwelling and reduces the CO2 emission in the equatorial Pacific Ocean.
Gaye-Haake Birgit
Herunadi Bambang
Ittekkot Venugopalan
Maier-Reimer Ernst
Rixen Tim
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