Record Display for the EPA National Library Catalog

RECORD NUMBER: 12 OF 17

OLS Field Name OLS Field Data
Main Title Selection of Test Variable for Minimal Time Detection of Basin Response to Natural or Induced Changes.
Author Morel-Seytou, Hubert J. ;
CORP Author Colorado State Univ., Fort Collins. Environmental Resources Center.
Year Published 1972
Report Number Completion-40 ;CER72-73HJM7; DI-14-31-0001-3506; OWRR-A-011-Colo.; 04061,; A-011-COLO(2)
Stock Number PB-214 114
Additional Subjects ( River basin development ; Statistical tests) ; ( Colorado river basin ; River basin development) ; Runoff ; Mathematical prediction ; Hydrology ; Chi square test ; T test ; Cloud seeding ;
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-214 114 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 21p
Abstract
Classical statistical tests have been used to assess whether an apparent change in basin response is the result of nature's caprice or of man's deliberate action. Often the physical information about the variable tested has been neglected. As a result the tests used are not optimal. Detection tests which use both the physical and statistical information can be designed and they will have a superior power to the standard tests. The test variable to be used is a linear combination of several physical and random variables with weight factors determined by a minimization procedure. The minimization is restricted by several equality constraints of a physical origin. When applied to the Colorado River Basin Pilot Project area the power of the test, expressed in years needed for detection, is increased by a factor of two. (Author)