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Wei-Jun Cai
Wei-Jun Cai
Professor

Mailing Address:
Wei-Jun Cai
Department of Marine Sciences
University of Georgia
Athens, GA 30602-3636

Office Phone: (706) 542-1285
Lab Phone: (706) 542-7188
FAX Number: (706) 542-5888
E-Mail: wcai@uga.edu
Home Page: http://www.marsci.uga.edu/
facultypages/cai

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Education:

Ph.D. 1992, Scripps Institute of Oceanography, University of California at San Diego; Oceanography

M.S. 1985, Shandong College of Oceanography, Qingdao, China; Marine Physical Chemistry

B.S. 1982, Xiamen University, Xiamen, China; Marine Chemistry

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Research Emphasis:

CO2 and O2 exchange across the air-sea interface and carbon cycling in coastal oceans; Development of sensors (pH & p CO 2 ) for carbon-cycling studies; Organic carbon degradation and CaCO 3 dissolution in marine and lake sediments; Acid-base and redox chemistry in natural environments; and global changes.

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Selected Publications:

(____ & * indicates that the first author is/was a student of Cai)

Jiang, L.-Q., Cai, W.-J.*, Wang, Y., Wanninkhof, R., and Lüger, H. 2007. Air-sea CO2 fluxes on the U.S. South Atlantic Bight--spatial and temporal variability. Submitted to Journal of Geophysical Research-Ocean. (under revision)

Cai, W.-J., Guo, X., Chen, C.T. A., Dai, M., Zhang, L., Zhai, W., Lohrenz, S.E., Yin, K., Harrison, P. J. and Wang, Y. 2007. A comparative overview of weathering intensity and HCO3- flux of the world’s major rivers with emphasis on the Changjiang, Huanghe, Zhujiang (Pearl) and Mississippi Rivers. Continental Shelf Research, (accepted).

Benitez-Nelson, C. R., et al. 2007. Mesoscale eddies drive increased silica export in the subtropical North Pacific Ocean, Science, 316:1017-1021. (W.-J. Cai and F. Chen are two of the 24 co-authors)

Chen, F. and Cai, W.-J.*, Benitez-Nelson, C., Wang, Y. 2007. Sea surface pCO2-SST relationships across a cold-core cyclonic eddy: Implications for understanding regional variability and air-sea gas exchange. Geophysical Research Letters, 34, L10603,  doi:10.1029/2006GL028058.

Zhang, X. and Cai, W.-J. 2007. On some biases of estimating the global distribution of air-sea CO2 flux by bulk parameterizations, Geophysical Research Letters, 34, L01608, doi:10.1029/2006GL027337.

Cai, W.-J., M. Dai, and Y. Wang. 2006. Air-sea exchange of carbon dioxide in ocean margins: A province-based synthesis, Geophysical Research Letters, 33, L12603, doi:10.1029/2006GL026219.

Cai, W.-J. , F. Chen, E. Powell, S. Walker, K., M. Parsons-Hubbard, G. Staff, Y. Wang, K, Ashton-Alcox, W. R. Callender, C. Brett. 2006. Preferential dissolution of carbonate shells driven by petroleum seep activity in the Gulf of Mexico. Earth and Planetary Science Letters, 248:227-243.

Lohrenz, S. E., and Cai, W.-J. 2006. Satellite ocean color assessment of air-sea fluxes of CO2 in a river-dominated coastal margin, Geophysical Research Letters, 33, L01601, doi:10.1029/2005GL023942.

Cai, W.-J. and Dai, M. 2004. A Technical Comment on “Enhanced open ocean storage of CO 2 from shelf area pumping” by Thomas et al. (Science 304) . Science (in press)

Cai, W-J., Dai M., Wang Y., Zhai W., Huang T., Chen S., Zhang F., Chen Z., Wang Z. 2004. The biogeochemistry of inorganic carbon and nutrients in the Pearl River estuary and the adjacent northern South China Sea. Continental Shelf Research 24:1301-1319.

Xie, H., Zafiriou, O.C., Cai, W-J., Zepp, R.G., and Wang, Y. 2004. Photooxidation and its effects on the carboxyl content of dissolved organic matter in two coastal rivers in the Southeastern United States. Environmental Science & Technology 38 (15): 4113 - 4119 .

Wang, Z. and Cai , W-J. 2004. Carbon dioxide degassing and inorganic carbon export from a marsh dominated estuary (the Duplin River ): A marsh CO 2 pump. Limnol. & Oceanogr. 49(2):341-352.

Cai, W-J. 2003. Riverine inorganic carbon flux and rate of biological uptake in the Mississippi River plume. Geophys. Res. Lett., 30(2), 1032, doi:10.1029/2002GL016312.

Cai, W-J. , Z. Wang and Y. Wang. 2003. The role of marsh-dominated heterotrophic continental margins in transport of CO 2 between the atmosphere, the land-sea interface and the ocean. Geophys. Res. Lett.   30(16), 1849, doi: 10.1029/2003GL017633.

Cai, W-J. , Y. Wang, J. Krest and W.S. Moore. 2003. The geochemistry of dissolved inorganic carbon in a surficial groundwater aquifer in North Inlet , South Carolina and the carbon fluxes to the coastal ocean. Geochim. Cosmochim. Acta. 67(4):631-637.

Wang, Z., Cai, W-J . and Wang, Y. 2003. Spectrophotometric p CO 2 measurements based on a long pathlength liquid-core waveguide in the South Atlantic Bight. Mar. Chem. 84:73-84.

Cai, W-J. , P. Zhao, S. M. Theberge, A.Witter, Y. Wang, G. Luther III. 2002. Porewater redox species, pH and p CO2 in aquatic sediments—Electrochemical sensor studies in Lake Champlain and Sapelo Island . In “Environmental Electrochemistry: Analyses of Trace Element Biogeochemistry” ACS Symposium Volume on Electrochemistry. M. Taillefert and T. Rozan (ed.)

Cai, W-J. , P. Zhao, and Y. Wang. 2000. pH and p CO2 microelectrodes measurement and diffusive behavior of carbon dioxide species in coastal marine sediments. Mar. Chem. 70:133-148.

Cai, W-J. and C.E. Reimers. 2000. Sensors for pH and p CO2 measurements in seawater and sediment-water interface. In J. Buffle and Horvai (ed.) In Situ Monitoring of Aquatic Systems: Chemical Analysis and Speciation. IUPAC book series on Analytical and Physical Chemistry of Environmental Systems, vol 6.

Cai, W-J. , W. J. Wiebe, Y. Wang and J. E. Sheldon. 2000. Intertidal marsh as a source of dissolved inorganic carbon and a sink of nitrate in the Satilla River-estuarine complex in the southeastern U.S. Limnol. & Oceanogr. 45:1743-1752.

Cai, W-J., L. R. Pomeroy, M. A. Moran and Y. Wang. 1999. An oxygen and carbon dioxide mass balance model of the estuarine/intertidal marsh complex of five rivers in the Southeastern U.S. Limnol & Oceanogr. 44:639-649.

Cai, W-J. and Y. Wang 1998. The chemistry, fluxes and sources of carbon dioxide in the estuarine waters of the Satilla and Altamaha Rivers, Georgia. Limnol. & Oceanogr. 43:657-668.

Cai, W-J. , Y. Wang, and R.E. Hodson. 1998. Acid-base properties of dissolved organic matter in the estuarine waters of Georgia. Geochimica et Cosmochimica Acta. 62 :473-483.

Zhao, P. and W-J. Cai 1997. An improved potentiometric p CO2 microelectrode. Anal. Chem. 69 :5052-58.

Cai, W-J. and F.L. Sayles. 1996. Oxygen penetration depths and fluxes in marine sediments. Marine Chemistry 52 :123-13.

Cai, W-J. and C.E. Reimers. 1995. Benthic oxygen flux, bottom water oxygen concentration and core top organic carbon content in the deep northeast Pacific Ocean. Deep-Sea Research 42 :1681-1699.

Cai, W-J., C.E. Reimers, and T. Shaw. 1995. Microelectrode studies of organic carbon degradation and calcite dissolution at a California continental rise site. Geochimca et Cosmochimica Acta. 59 ,497-511.

Cai, W-J. and C.E. Reimers. 1993. The development of pH and p CO2 microelectrodes for studying the carbonate chemistry of pore waters near the sediment-water interface. Limnology and Oceanography 38 :1776-1787.

Cai, W-J., B.-L. Chen, B.-L. Wu and L. Li, 1988. The effect of sewage discharge on the adsorption of heavy metal ions by small particles of Yangtse river estuarine. Marine Science, Sinica, 1 :20-24.

Cai, W-J. and Z.-B. Zhang.  1987. The kinetics of exchange reactions between heavy metals and solid particles in seawater. I . Reaction orders, rate constants and activation energy. Acta Oceanologica, Sinica, 9 :321-329.

Wu, Y.-D. and W-J. Cai. 1983. Reduction of Cr(VI) by dissolved organics in estuarine water body.  Acta Scientiae Circumstantiae, 3 :176-182.

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