Probable Maximum Precipitation Estimates, United States East of the L05th Meridian
U.S. DEPARTMENT OF COMMERCE U.S. DEPARTMENT OF THE ARMY NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION CORPS OF ENGINEERS HYDROMETEOROLOGICAL REPORT NO. 51 Probable Maximum Precipitation Estimates, United States East of the l05th Meridian Prepared by Louis C. Schreiner and John T. Riedel Hydrometeorological Branch Office of Hydrology National Weather Service WASIHNGTON, D.C. June 1978 Reprinted August 1980 For sale by the Superintendent of D<>euments, u.S. G<.>varnment Printing Offioe Washington, D.c. 200'12 CONTENTS Page Abstract., •...•••.... ,, •... ,, •....••... , •••.. 0 •••••••••••• 0 ••••• 0 0 •• 1 1. Introduction ... , ••.... , ••...• , , .... , •...•••....• , ....• , ....• 1 1.1. Background .•.•••••..• , •.•.• , •... , , ••.•.• , •.•••••..•••.•. 1 1.2. Assignment •••••••.•.•••.••.•••.•••.•.•.••••.•.. , •••.• , •. 1 1.3. Definition of PMP •. ,, •.•..•••...• , •.•.•• ,, ••.• ,., ..•. , •. 2 1.4. Scope .••••.. , , ••.•.••••.•. , ••.••••••••.• , •..• , , .•...•••.•. 2 1.4.1. Generalized vs. individual drainage estimates .••••••.•.• 2 1.4.2. Stippled regions on PMP maps •.•. , •••..•• , •.•.•.•••.•.••• 3 1.5. Application of drainage PMP values ••....••••..•••••.•.•••. 3 2. Approach to generalized PMP ••••.•.•••.•.••••.•.•••••...•••.• 3 2.1. Introduction. , , • , ••.. , • , ....•••...••••... , 3 2.2. Basic data •.•••••...••••.•.•••.•.•••..•••••.••••••.•••••.• 4 2.2.1. Sources •.•••••.•••••.••••••.•••••.••••.•.•••••...•••.•. , 4 2.2.2. Variation in rainfall data with duration and area size •• 6 2.2.3. Point rainfall vs. 10-mi2 (26-km2)
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