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Detailed Reference Information |
Gregg, W.W. and Conkright, M.E. (2002). Decadal changes in global ocean chlorophyll. Geophysical Research Letters 29: doi: 10.1029/2002GL014689. issn: 0094-8276. |
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The global ocean chlorophyll archive produced by the CZCS was revised using compatible algorithms with SeaWiFS. Both archives were then blended with in situ data to reduce residual errors. This methodology permitted a quantitative comparison of decadal changes in global ocean chlorophyll from the CZCS (1979--1986) and SeaWiFS (1997--2000) records. Global spatial distributions and seasonal variability of ocean chlorophyll were similar, but global means decreased over the two observational segments. Major changes were observed regionally: chlorophyll concentrations decreased in the northern high latitudes while chlorophyll in the low latitudes increased. Mid-ocean gyres exhibited limited changes. The overall spatial and seasonal similarity of the two data records suggests that the changes are due to natural variability. These results provide evidence of how the Earth's climate may be changing and how ocean biota respond. |
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BACKGROUND DATA FILES |
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Abstract |
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Keywords
Global Change, Climate dynamics, Oceanography, Biological and Chemical, Biogeochemical cycles, Oceanography, General, Climate and interannual variability, Global Change, Oceans, Oceanography, General, Remote sensing and electromagnetic processes |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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