SEA-AIR FLUX OF CO2 IN THE NORTH PACIFIC USING SHIPBOARD AND SATELLITE DATA

被引:82
作者
STEPHENS, MP [1 ]
SAMUELS, G [1 ]
OLSON, DB [1 ]
FINE, RA [1 ]
机构
[1] COLUMBIA UNIV, LAMONT DOHERTY EARTH OBSERV, PALISADES, NY 10964 USA
关键词
D O I
10.1029/95JC00901
中图分类号
P7 [海洋学];
学科分类号
0707 ;
摘要
A method has been developed to produce high-resolution maps of pCO(2) in surface water for the North Pacific using satellite sea surface temperature (SST) data and statistical relationships between measured pCO(2) and temperature. In the subtropical North Pacific the pCO(2) in seawater is controlled primarily by temperature. Accordingly, pCO(2) values that are calculated from the satellite SST data have good agreement with the measured values (rms deviation of +/-17 mu atm). In the northwestern subpolar region the pCO(2) is controlled not only by temperature, but also by significant seasonal changes in the total CO2 concentration, which are caused by seasonal changes in primary production, mixing with subsurface waters, and sea-air exchange. Consequently, the parameterization of oceanic pCO(2) based on SST data alone is not totally successful in the northwestern region (rms deviation of +/-40 mu atm). The use of additional satellite products, such as wind and ocean color data, as planned for a future study, is considered necessary to account for the pCO(2) variability caused by seasonal changes in the total CO:! concentration. The net CO2 flux for the area of the North Pacific included in this study (north of 10 degrees N) has been calculated using the monthly pCO(2) distributions computed, and monthly wind speeds from the European Centre for Medium-Range Weather Forecasts. The region is found to be a net source to the atmosphere of 1.9 x 10(12) to 5.8 x 10(12) moles of CO2 per year (or 0.02-0.07 Gt C/yr), most of the outflux occurring in the subtropics.
引用
收藏
页码:13571 / 13583
页数:13
相关论文
共 44 条
[21]   TEMPORAL VARIATIONS IN THE SEPARATION OF BRAZIL AND MALVINAS CURRENTS [J].
OLSON, DB ;
PODESTA, GP ;
EVANS, RH ;
BROWN, OB .
DEEP-SEA RESEARCH PART A-OCEANOGRAPHIC RESEARCH PAPERS, 1988, 35 (12) :1971-1990
[22]   OCEANIC UPTAKE OF FOSSIL-FUEL CO2 - C-13 EVIDENCE [J].
QUAY, PD ;
TILBROOK, B ;
WONG, CS .
SCIENCE, 1992, 256 (5053) :74-79
[23]   REVISED BUDGET FOR THE OCEANIC UPTAKE OF ANTHROPOGENIC CARBON-DIOXIDE [J].
SARMIENTO, JL ;
SUNDQUIST, ET .
NATURE, 1992, 356 (6370) :589-593
[24]   A PERTURBATION SIMULATION OF CO2 UPTAKE IN AN OCEAN GENERAL-CIRCULATION MODEL [J].
SARMIENTO, JL ;
ORR, JC ;
SIEGENTHALER, U .
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1992, 97 (C3) :3621-3645
[25]   SURFACE WIND SPEEDS OVER THE NORTH-SEA FROM SPECIAL SENSOR MICROWAVE IMAGER OBSERVATIONS [J].
SCHLUESSEL, P ;
LUTHARDT, H .
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1991, 96 (C3) :4845-4853
[26]   ON THE BULK-SKIN TEMPERATURE DIFFERENCE AND ITS IMPACT ON SATELLITE REMOTE-SENSING OF SEA-SURFACE TEMPERATURE [J].
SCHLUESSEL, P ;
EMERY, WJ ;
GRASSI, H ;
MAMMEN, T .
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1990, 95 (C8) :13341-13356
[27]   GAS-EXCHANGE AND CO2 FLUX IN THE TROPICAL ATLANTIC-OCEAN DETERMINED FROM RN-222 AND PCO2 MEASUREMENTS [J].
SMETHIE, WM ;
TAKAHASHI, T ;
CHIPMAN, DW .
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1985, 90 (NC4) :7005-7022
[28]   SEASONAL-VARIATION OF CO2 AND NUTRIENTS IN THE HIGH-LATITUDE SURFACE OCEANS - A COMPARATIVE-STUDY [J].
TAKAHASHI, T ;
OLAFSSON, J ;
GODDARD, JG ;
CHIPMAN, DW ;
SUTHERLAND, SC .
GLOBAL BIOGEOCHEMICAL CYCLES, 1993, 7 (04) :843-878
[29]  
TAKAHASHI T, 1989, OCEANUS, V32, P22
[30]  
TAKAHASHI T, 1991, GLOBAL BIOCH CYCLES, V38, pS171