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E.B. Hoffman

Publications and source records attributed to E.B. Hoffman.

7 recordsLinked to original sources

Water Resources Data, California, Water Year 1991. Volume 1. Southern Great Basin from Mexican Border to Mono Lake Basin; and Pacific Slope Basins from Tijuana River to Santa Maria River

Water resources data for the 1991 water year for California consist of records of stage, discharge, and water quality of streams; stage and contents in lakes and reservoirs; and water levels and water quality in wells. Volume 1 contains dischrage records for 171 streamflow-gaging stations, 16 crest-stage partial-record streamflow stations, and 3 miscellaneous measurement stations; stage and contents records for 24 lakes and reservoirs; water-quality records for 23 streamflow-gaging stations, 4 partial-record stations; and precipitation records for 16 stations. These data represent that part of the National Water Data System operated by the U,S. Geological Survey and cooperating State and Federal agencies in California.

California

Water Resources Data, California, Water Year 1991. Volume 3. Southern Central Valley Basins and the Great Basin from Walker River to Truckee River

Water resources data for the 1991 water year for California consist of records of stage, discharge, and water quality of streams; stage and contents in lakes and reservoirs; and water levels and water quality in wells. Volume 3 contains discharge records for 164 gaging stations, 3 crest-stage partial-record streamflow stations and 49 miscellaneous measurement stations; stage and contents records for 46 lakes and reservoirs; water quality records for 32 streamflow-gaging stations; and precipitation records for one station. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies in California.

California

Water Resources Data, California, Water Year 1990. Volume 1. Southern Great Basin from Mexican Border to Mono Lake Basin; and Pacific Slope Basins from Tijuana River to Santa Maria River

Water resources data for the 1990 water year for California consist of records of stage, discharge, and water quality of streams; stage and contents in lakes and reservoirs; and water levels and water quality in wells. Volume 1 contains discharge records for 157 streamflow-gaging stations, 16 crest-stage partial-record streamflow stations, and 2miscellaneous measurement stations; stage and contents records for 16 lakes and reservoirs; water-quality records for 19 streamflow-gaging stations, 2 partial-record stations; and precipitation records for 13 stations. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies in California.

California

Analyses of flood-flow frequency for selected gaging stations in South Dakota

Analyses of flood flow frequency were made for 111 continuous-record gaging stations in South Dakota with 10 or more years of record. The analyses were developed using the log-Pearson Type III procedure recommended by the U.S. Water Resources Council. The procedure characterizes flood occurrence at a single site as a sequence of annual peak flows. The magnitudes of the annual peak flows are assumed to be independent random variables following a log-Pearson Type III probability distribution, which defines the probability that any single annual peak flow will exceed a specified discharge. By considering only annual peak flows, the flood-frequency analysis becomes the estimation of the log-Pearson annual-probability curve using the record of annual peak flows at the site. The recorded data are divided into two classes: systematic and historic. The systematic record includes all annual peak flows determined in the process of conducting a systematic gaging program at a site. In this program, the annual peak flow is determined for each and every year of the program. The systematic record is intended to constitute an unbiased and representative sample of the population of all possible annual peak flows at the site. In contrast to the systematic record, the historic record consists of annual peak flows that would not have been determined except for evidence indicating their unusual magnitude. Flood information acquired from historical sources almost invariably refers to floods of noteworthy, and hence extraordinary, size. Although historic records form a biased and unrepresentative sample, they can be used to supplement the systematic record. (Author 's abstract)

Water-Resources Investigations Report