scholarly journals Survey of existing data bases for plume model validation studies. Final report

1979 ◽  
Author(s):  
R. C. Sklarew ◽  
A. Joncich
Keyword(s):  
Model Validation ◽  
Validation Studies ◽  
Final Report ◽  
Data Bases ◽  
Plume Model ◽  
Existing Data

Use of multivariate methods in forest research site selection

1991 ◽  
Vol 21 (11) ◽  
pp. 1573-1580 ◽  
Author(s):  
Andrew J. Burton ◽  
Carl W. Ramm ◽  
Kurt S. Pregitzer ◽  
David D. Reed
Keyword(s):  
Site Selection ◽  
Large Scale ◽  
Multivariate Methods ◽  
Data Bases ◽  
Principal Coordinates Analysis ◽  
Research Site ◽  
Principal Coordinates ◽  
Alternative Sites ◽  
Existing Data ◽  
Selection Of

In large-scale gradient studies, selection of the best research sites is critical but time-consuming and costly. Multivariate methods can be used to quickly identify suitable sites from existing data bases. Based on a study of acid deposition in the Great Lakes region (the Michigan Gradient Study), we illustrate the use of multivariate methods in screening potential research sites for similarity. Sites were examined using cluster analysis, principal coordinates analysis, and correspondence analysis. The graphical displays generated by the multivariate methods were used to identify similar sites across the gradient. A list of 31 potential sites was reduced to 5 similar research sites and several alternative sites. The results of the multivariate methods compared well with more traditional methods of research site selection but allowed for multiple comparisons of many potential sites using a variety of data from existing data bases. By eliminating sites that are unacceptable with respect to available data, the multivariate methods reduce the number of sites that require field visitation prior to final site verification. This process represents a substantial savings in time and effort when dealing with a long list of potential research sites.

Data entry using micro-computers: An experimental file of the International Bibliography of Economics

1979 ◽  
Vol 1 (4) ◽  
pp. 203-207 ◽  
Author(s):  
George K. Thompson
Keyword(s):  
Social Sciences ◽  
Data Entry ◽  
Computer Applications ◽  
Data Bases ◽  
Economics Literature ◽  
The Social ◽  
Experimental Project ◽  
The Creation ◽  
Existing Data

This paper describes an experimental project for the com puter storage and generation of a bibliography of economics literature published in 1979, as a contribution to the broader computer applications in the International Bibliography of the Social Sciences and reviews some of the appropriate tech nology for such a system, the adequacy of existing data bases and directories of these, and the creation of tertiary data bases.

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