| Abstract: | Ten low-flow hydrologic areas were defined for North Carolina by relating topography, geology, mean annual runoff, and other features to low-flow frequency characteristics for 122 continuous-record streamflow stations and 396 partial-record streamflow stations. Regression equations relating low-flow characteristics to mean annual discharge were developed for five of the hydrologic areas covering 40% of the State, and statistical summaries of low-flow characteristics are given for all 10 hydrologic areas. Low-flow characteristics selected for analysis were the low-flow 7Q10, which is the annual minimum 7-day consecutive low flow, which on average will be exceeded in 9 out of 10 years--or stated another way, the probability is 10% that the 7-day consecutive low flow in any year will be less than the 7Q10; the low-flow W7Q10, which is similar to the low-flow 7Q10 except that it takes into account only the months from November through March; the low-flow 7Q2; and the low-flow 30Q2. Low-flow 7Q10‘s ranged from zero in some hydrologic areas in the Coastal Plain and Piedmont physiographic areas to a maximum value of 1.06 cu ft/sec/sq mi for a station in the western Piedmont and mountains physiographic area. |
| Genre: | USGS Numbered Series |
| ProdID: | 1668 |
| Citation Author: | Giese, G. L.; Mason, Robert R., Jr. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | iv, 29 p. :ill., maps (some col.) ;28 cm.; 2 plates in pocket |
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| Citation Publisher: | U.S. G.P.O. ;
U.S. Geological Survey, Map Distribution, |
| Citation Series: | Water Supply Paper |
| Citation Series Code: | WSP |
| Citation Series Number: | 2403 |
| Citation Search Results Text: | Low-flow characteristics of streams in North Carolina; 1993; WSP; 2403; Giese, G. L.; Mason, Robert R., Jr. |
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| Citation Year: | 1993 |
| Type: | citation/reference |
| Text: | Low-flow characteristics of streams in North Carolina; 1993; WSP; 2403; Giese, G. L.; Mason, Robert R., Jr. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/wsp/2403/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/wsp/2403/report.pdf |
| URL (PLATE): | http://pubs.usgs.gov/wsp/2403/plate-1.pdf |
| URL (PLATE): | http://pubs.usgs.gov/wsp/2403/plate-2.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. G.P.O. ;
U.S. Geological Survey, Map Distribution, |
| Superseded by: |
http://pubs.er.usgs.gov/publication/ofr90399
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