DISTRIBUTION OF RIVER BASIN AREA IN THE CONTERMINOUS UNITED STATES |
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| Authors: | Ennio V GIUSTI |
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| Institution: | U. S. Geological Survey , Washington 25, D. C. |
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| Abstract: | Abstract The number of sub-basins of any given area (a), within any given basin or region of area (A) is well approximated by the formula Na = 0.28 A/a for values of A/a larger than 10. The standard error of values predicted by this formula is 25 percent. When the number of stations at which stream gaging is performed is compared with the total number of watersheds of various sizes in the continental United States, it becomes evident that there is a serious undersampling of small streams and an excess gaging of large rivers. |
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