1962 USARMY Statistical Methods in Hydrology

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Statistical Methods inHydrology

January 1962

Approved for Public Release. Distribution Unlimited. TD-4

US Army Corps

of Engineers Hydrologic Engineering Center



Standard Form 298 (Rev. 8/98)Prescribed by ANSI Std. Z39-18

REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188

The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searchingexisting data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding thisburden estimate or any other aspect of t his collection of information, including suggestions for reducing this burden, to the Department of Defense, ExecutiveServices and Communications Directorate (0704-0188). Respondents should be aware that notwithstanding any other provision of law, no person shall besubject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number.PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ORGANIZATION. 1. REPORT DATE (DD-MM-YYYY) January 1962

2. REPORT TYPE Training Document

3. DATES COVERED (From - To)

5a. CONTRACT NUMBER

5b. GRANT NUMBER

4. TITLE AND SUBTITLE Statistical Methods in Hydrology

5c. PROGRAM ELEMENT NUMBER

5d. PROJECT NUMBER

5e. TASK NUMBER

6. AUTHOR(S) Leo R. Beard

5F. WORK UNIT NUMBER

7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) US Army Corps of EngineersInstitute for Water Resources

Hydrologic Engineering Center (HEC)609 Second StreetDavis, CA 95616-4687

8. PERFORMING ORGANIZATION REPORT NUMBER

TD-4

10. SPONSOR/ MONITOR'S ACRONYM(S)9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 11. SPONSOR/ MONITOR'S REPORT NUMBER(S)

12. DISTRIBUTION / AVAILABILITY STATEMENT Approved for public release; distribution is unlimited.13. SUPPLEMENTARY NOTES

.14. ABSTRACT This publication described and illustrates the application of statistics in hydrologic engineering, especially flood frequencyanalysis. The subject matter covers the following items:

(1) A review of the basic concepts of probability and correlation analyses that is applicable in hydrologic engineering,with a guide to supplemental reading.

(2) Presentation of detailed computation procedures and computation aids for derivation of frequency estimates based onanalysis of hydrologic record.

(3) A summary of procedures for developing "regionalized" hydrologic frequency estimates, based on analyses ofhydrologic records available at stream gaging stations, adjusted to provide generalized flood-frequency relations thatare considered to be representative of long-period hydrologic characteristics.

15. SUBJECT TERMS hydrology, analytical techniques, statistical methods, frequency analysis, flood frequency, regression analysis, regionalanalysis16. SECURITY CLASSIFICATION OF: 19a. NAME OF RESPONSIBLE PERSONa. REPORT

Ub. ABSTRACT

Uc. THIS PAGE

U

17. LIMITATIONOF

ABSTRACT UU

18. NUMBEROFPAGES

130 19b. TELEPHONE NUMBER



Statistical Methods inHydrology

January 1962

US Army Corps of Engineers

Institute for Water ResourcesHydrologic Engineering Center609 Second StreetDavis, CA 95616

(530) 756-1104(530) 756-8250 FAXwww.hec.usace.army.mil TD-4









































































































































































































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1962 USARMY Statistical Methods in Hydrology