U.S. JGOFS SMP

U.S. JGOFS Synthesis & Modeling Project
Ralph F. Keeling Co-PI: Hernan Garcia
Southern Ocean seasonal net production from atmospheric and ocean data sets NASA, 36 months
PROJECT DESCRIPTION:	We propose to synthesize large-scale oceanic (dissolved oxygen, dissolved inorganic carbon, sea-surface temperature, mixed layer depth, heat flux) and atmospheric (O₂/N₂ ratio) datasets at on large scales in the Southern Hemisphere south of 30 S. The chemical and physical datasets will be used to construct estimates of monthly, zonally-averag ed net community production of organic carbon in the ocean mixed layer. Following these analyses, we will also investigate interannual relationships between those variables (O₂/N₂, SST, heat flux) which are available as continuous time-series with the goal of understanding interannual controls on production and carbon cycling. Our study will clarify the magnitude of and large-scale controls on production and carbon flux in the Southern Ocean and provide a basis for intercomparison with independent estimates based on satellite-derived ocean color. These studies will also establish the basis for using atmospheric observations for documenting and interpreting annual and interannual variations in the future.
DATA:	Global monthly air-sea O₂ flux anomalies (via SMP LAS)
PUBLICATIONS:	Garcia, H.; Keeling, R.F. 2001. On the global oxygen anomaly and air-sea flux. JGR Oceans 106(C12): 31,115-31,166.
RELATED PROJECTS:	- no related projects listed -
INVESTIGATOR INFORMATION:	Ralph F. Keeling Scripps Institution of Oceanography University of California, San Diego 9500 Gilman Drive La Jolla, California 92093-0236 tel: (619) 534-7582 fax: (619) 534-2997 rkeeling@ucsd.edu http://www-mpl.ucsd.edu/MarChem/Main_Site/Teaching_Staff/KeelingRF.html Hernan E. Garcia OCL-NODC-NOAA SSMC-III, E/OC5, Room 4306 1315 East-West Highway Silver Spring, MD 20910 tel: (301) 713-3291 x184 fax: (301) 713-3303 Hernan.Garcia@noaa.gov http://www.nodc.noaa.gov/OC5/