## Geological Survey Water-supply PaperU.S. Government Printing Office, 1950 - Irrigation |

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altitude annual basinwide precipitation annual peak discharges annual runoff average base period Benson Brazos River characteristics Coast Ranges correlation Creek determined drainage area drainage basin effect England equation extreme-value probability figure flood peaks flood-frequency analysis flood-frequency curve flood-frequency relations formula frequency curve gaging stations gamma distribution homogeneity hydrologic hydrologic factors inches independent variables index-flood method inflow hydrographs Klamath Mountains linear storage logarithmic normal distribution magnitude main-channel slope maps mean annual basinwide mean annual flood mean annual precipitation methods of analysis Mexico N.Mex north coastal California Nueces River obtained peak-discharge data peak-discharge record Pearson type Pecos River period of record plotted rain-flood area rainfall intensity recurrence interval reservoir San Diego area short-term station shown snowmelt snowmelt-flood area soil square miles standard deviation standard error statistical storm streams temperature tion topographic Trinity River type III distribution U.S. Geol U.S. Geological Survey U.S. Weather Bureau variation

### Popular passages

Page D-36 - Factors influencing the occurrence of floods in a humid region of diverse terrain: US Geol.

Page C-30 - The soils are classified on the basis of intake of water at the end of long-duration storms occurring after prior wetting and opportunity for swelling, and without the protective effects of vegetation.

Page A-10 - We have already mentioned that the up-and-down method is particularly effective for estimating the mean. It is not a good method for estimating small or large percentage points (for example, the height at which 99 per cent of specimens explode) unless normality of the distribution is assured. In fact, no method which uses the normal distribution can be relied on to estimate extreme percentage points because such estimates depend critically on the assumption of normality. In most experimental research,...

Page D-37 - Thomas, NO, and Harbeck, GE, Jr., 1956, Reservoirs in the United States : US Geol. Survey Water-Supply Paper 1360-A, p.

Page C-29 - Where two first-order channels join, a channel segment of order 2 is formed; where two of order 2 join, a segment of order H is formed: and so forth.

Page A-8 - When there is some logical basis for the selection of a particular equation, the equation and the corresponding curve may provide a definite logical measurement of the nature of the relationship., When no such logical basis can be developed, a curve fitted by a definite equation yields only an empirical statement of the relationship and may fail to show the true relation. In such cases a curve fitted freehand by graphic methods, and conforming to logical limitations on its shape, may be even more...

Page D-36 - Rainfall frequency atlas of the United States", US Dept.

Page A-12 - T is the recurrence interval, n is the number of years of record and m is the rank of the magnitude of the flood, with m = 1 as the highest discharge on record.

Page D-36 - Bodhaine, GL, and Thomas, DM, 1964, Magnitude and frequency of floods in the United States, Part 12, Pacific slope basins in Washington and upper Columbia River basin.

Page D-55 - Verify JL sheet (s) in pocket Stanford University Libraries Stanford, California Return this book on or before date due.