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Hydrologic investigations in the Araguaia-Tocantins River basin (Brazil)

Open-File Report 79-1599
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https://doi.org/10.3133/ofr791599

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Abstract

The Araguaia-Tocantins River basin system of central and northern Brazil drains an area of about 770,000 square kilometers and has the potential for supporting large-scale developments. During a short visit to the headquarters of the Interstate Commission for the Araguaia-Tocantins Valley and to several stream-gaging stations in June 1964, the author reviewed the status of the streamflow and meteorological data-collection programs in relation to the streamflow and meteorological data-collection programs in relation to the pressing needs of development project studies. To provide data for areal and project-site studies and for main-stream sites, an initial network of 33 stream gaging stations was proposed, including the 7 stations then in operation. Suggestions were made in regard to operations, staffing and equipment. Organizational responsibilities for operations were found to be divided uncertainly. The Brazilian Meteorological Service had 15 synoptic stations in operation in and near the basin, some in need of reconditioning. Plans were at hand for the addition of 15 sites to the synoptic network and for limited data collection at 27 other sites. The author proposed collection of precipitation data at about 50 other locations to achieve a more representative areal distribution. Temperature, evaporation, and upper-air data sites were suggested to enhance the prospective hydrometeorological studies. (USGS)

Suggested Citation

Snell, L.J., 1979, Hydrologic investigations in the Araguaia-Tocantins River basin (Brazil): U.S. Geological Survey Open-File Report 79-1599, iii, 30 p., 2 over-size sheets ;30 cm., https://doi.org/10.3133/ofr791599.

ISSN: 2331-1258 (online)

Publication type Report
Publication Subtype USGS Numbered Series
Title Hydrologic investigations in the Araguaia-Tocantins River basin (Brazil)
Series title Open-File Report
Series number 79-1599
DOI 10.3133/ofr791599
Year Published 1979
Language ENGLISH
Publisher U.S. Geological Survey,
Description iii, 30 p., 2 over-size sheets ;30 cm.
Additional publication details