Other
Scientific paper
Jun 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3312603c&link_type=abstract
Geophysical Research Letters, Volume 33, Issue 12, CiteID L12603
Other
41
Atmospheric Composition And Structure: Air/Sea Constituent Fluxes (3339, 4504), Biogeosciences: Carbon Cycling (4806), Cryosphere: Biogeochemistry (0412, 0414, 1615, 4805, 4912)
Scientific paper
In determining global sea-to-air CO2 flux from measurements or models, the ocean margin has not been resolved from the land or the open ocean. Recent studies have indicated that shelves can be either a large sink or a source for atmospheric CO2. This CO2 sink/source term may substantially alter our current view of the global carbon budget for land and oceans. However, past fieldwork and synthesis have focused on a few shelves in the northern temperate zone while the vast majority of other shelves are ignored. By dividing the highly heterogeneous shelves into seven provinces, we suggest that the continental shelves are a sink for atmospheric CO2 at mid-high latitudes (-0.33 Pg C a-1) and a source of CO2 at low latitudes (0.11 Pg C a-1). Warm temperature and high terrestrial organic carbon input are most likely responsible for the CO2 release in low latitude shelves.
Cai Wei-Jun
Dai Minhan
Wang Yongchen
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