A global ocean carbon climatology: Results from Global Data Analysis Project (GLODAP)

Global Biogeochemical Cycles - Tập 18 Số 4 - 2004
Robert M. Key1, Alex Kozyr2, C. Sabine3, Kitack Lee4, Rik Wanninkhof5, John L. Bullister3, Richard A. Feely3, Frank J. Millero6, Calvin W. Mordy3, Tianji Peng5
1Atmospheric and Oceanic Sciences Princeton University Princeton New Jersey USA
2Carbon Dioxide Information Analysis Center Oak Ridge National Laboratory Oak Ridge Tennessee USA
3Pacific Marine Environmental Laboratory NOAA Seattle Washington USA
4School of Environmental Science and Engineering, Pohang University of Science and Technology, Pohang, Republic of Korea
5Atlantic Oceanographic and Meteorological Laboratory NOAA Miami Florida USA
6Rosenstiel School of Marine and Atmospheric Sciences University of Miami Miami Florida USA

Tóm tắt

During the 1990s, ocean sampling expeditions were carried out as part of the World Ocean Circulation Experiment (WOCE), the Joint Global Ocean Flux Study (JGOFS), and the Ocean Atmosphere Carbon Exchange Study (OACES). Subsequently, a group of U.S. scientists synthesized the data into easily usable and readily available products. This collaboration is known as the Global Ocean Data Analysis Project (GLODAP). Results were merged into a common format data set, segregated by ocean. For comparison purposes, each ocean data set includes a small number of high‐quality historical cruises. The data were subjected to rigorous quality control procedures to eliminate systematic data measurement biases. The calibrated 1990s data were used to estimate anthropogenic CO2, potential alkalinity, CFC watermass ages, CFC partial pressure, bomb‐produced radiocarbon, and natural radiocarbon. These quantities were merged into the measured data files. The data were used to produce objectively gridded property maps at a 1° resolution on 33 depth surfaces chosen to match existing climatologies for temperature, salinity, oxygen, and nutrients. The mapped fields are interpreted as an annual mean distribution in spite of the inaccuracy in that assumption. Both the calibrated data and the gridded products are available from the Carbon Dioxide Information Analysis Center. Here we describe the important details of the data treatment and the mapping procedure, and present summary quantities and integrals for the various parameters.

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Global Biogeochemical Cycles

Tập 18 Số 4

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