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GCC DATA RESOURCES: Part 1. U.S. Global Change Data and Information Management

An occasional column
on Internet resources
Fred Stoss
Science and Engineering Library,
State University
of New York at Buffalo

This column begins a series on resources related to international data and information management for global change research. It will describe programs, centers, and activities that are making global change research data more visible and accessible to researchers, educators, policy makers, and managers. Exemplifying this need is the emphasis the U.S. Global Change Research Program places on data and information access through its Global Change Data and Information System. (See GCC ONLINE, Global Climate Change Digest, Feb. 1997.)


The Carbon Dioxide Information Analysis Center (CDIAC; at Oak Ridge National Laboratory was established by the U.S. Department of Energy to develop data products related to the global carbon cycle. CDIAC has produced more than 60 specialized numeric data packages (NDPs) for topics including atmospheric concentrations of trace gases, emissions inventories of carbon dioxide, coastal zone hazards, historical climate data (U.S. and global), ocean chemistry, and land use. This work is discussed in the ORNL Review: CDIAC also serves as the World Data Center-A for Atmospheric Trace Gases. (The data roles of the World Data Centers and the U.S. National Data Centers will be the focus of Part 2 of this series.)

The Atmospheric Radiation Program (ARM; is also supported by the Department of Energy. Archived measurements related to meteorology, clouds, aerosols, radiative fluxes and the like are available (


NASA supports the single largest component of USGCRP data generation and information management in its Mission to Planet Earth (MTPE; This long-term program studies the interactions among the Earth's atmosphere, oceans, land processes (biotic and abiotic), and human activities. The Earth Observing System (EOS; is an essential component of MTPE that generates a wide variety of atmospheric, oceanic, and land use data.

The EOS Data and Information System (EOSDIS; was developed by NASA to help a wide variety of users acess data products and other information derived from EOS and other MTPE activities and programs.

Within the EOSDIS framework, several Distributed Active Archive Centers (DAACs) provide products, publications, and services to support multidisciplinary global change research, and to assist the cross-disciplinary exchange of data and information among all interested parties. Each of the DAACs maintains its own specialized data holding. The Information Management System (IMS; provides access to the following EOSDIS DAACs:

Extensive information on these DAACs is found in the Catalog of Data Sets and Services Available from the EOS Distributed Active Archive Centers, available free from the ORNL DAAC User Services Office, P.O. Box 2008 (MS-6407), Bldg. 1507, Oak Ridge TN 37831 (tel: 423 241 3952;

Future topics for this column are: GCC Data, Part 2; Electronic Books and Reports; GCC Educational Resources. If readers would like to have specific WWW sites or listservs covered in these upcoming articles contact Fred Stoss at

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