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Distributed information system (water fact sheet)

January 1, 1994

During 1982-85, the Water Resources Division (WRD) of the U.S. Geological Survey (USGS) installed over 70 large minicomputers in offices across the country to support its mission in the science of hydrology. These computers are connected by a communications network that allows information to be shared among computers in each office. The computers and network together are known as the Distributed Information System (DIS). The computers are accessed through the use of more than 1500 terminals and minicomputers. The WRD has three fundamentally different needs for computing: data management; hydrologic analysis; and administration. Data management accounts for 50% of the computational workload of WRD because hydrologic data are collected in all 50 states, Puerto Rico, and the Pacific trust territories. Hydrologic analysis consists of 40% of the computational workload of WRD. Cost accounting, payroll, personnel records, and planning for WRD programs occupies an estimated 10% of the computer workload. The DIS communications network is shown on a map. (Lantz-PTT)

Citation Information

Publication Year 1986
Title Distributed information system (water fact sheet)
DOI 10.3133/ofr85649
Authors A.W. Harbaugh
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Open-File Report
Series Number 85-649
Index ID ofr85649
Record Source USGS Publications Warehouse