Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Meta-Analytic Reappraisal of Statistical Results in the Environmental Sciences: The Case of a Hydrological Effect of Cloud Seeding.
Author Sharon, D. ;
CORP Author Hebrew Univ. of Jerusalem (Israel). Inst. of Earth Sciences.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Publisher c1990
Year Published 1990
Report Number EPA/600/J-90/307;
Stock Number PB91-146613
Additional Subjects Statistical analysis ; Hydrologic cycle ; Cloud seeding ; Mathematical models ; Air water interactions ; Water resources ; Water runoff ; Case studies ; Rainfall ; Data processing ; Discharge(Water) ; Reprints ; Meta-analysis
Library Call Number Additional Info Location Last
NTIS  PB91-146613 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/13/1991
Collation 9p
A frequent problem in the statistical analysis of data in environmental sciences is the synthesis of results obtained independently from various sets of data such as from different measuring points or from replicated experiments, etc. Unlike the analysis of the separate sets themselves, their ultimate combined evaluation has been mostly given in descriptive terms only. It is that critical final stage of data synthesis where meta-analysis comes in. Some principles of the method are presented and their usefulness is discussed. The approach is illustrated using previously published results on the hydrological effect of rainfall enhancement in Israel. It is shown that while the resulting increase in discharge from separate hydrologic zones is statistically insignificant, the integrated totality of results (assuming independence) is significant at less than 5 percent.