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Parallels between Statistical Issues in Medical and Meteorological Experimentation
Publisher: American Meteorological Society
Abstract: The methodology of experimentation, randomization, and statistical analysis in weather modification has many parallels in clinical trials, such as the need for randomization, and the question of inclusion or exclusion of ...
Analysis of Meteorological Data by Means of Canonical Decomposition and Biplots
Publisher: American Meteorological Society
Abstract: The biplot is a graphical display of a two-dimensional approximation to a matrix. Its usefulness in the display and analysis of matrices of meteorological data is demonstrated by a detailed exposition of two illustrations ...
Ratio Statistics for Randomized Experiments in Precipitation Stimulation
Publisher: American Meteorological Society
Abstract: A variety of ratio statistics has been used in the design and evaluation of weather modification experiments and their significance has usually been estimated by rerandomization. These ratios, and especially their logarithms, ...
Confidence Regions and Pooling—Some Statistics for Weather Experimentation
Publisher: American Meteorological Society
Abstract: The use of confidence intervals for assessing the results of weather modification experiments is demonstrated and is shown to be more informative than tests of significance. Multivariate tests, confidence regions, and ...
On Using Historical Comparisons in Evaluating Cloud Seeding Operations
Publisher: American Meteorological Society
Abstract: Cloud seeding operations are often evaluated by comparing precipitation during operations with records of previous ?historical? precipitation. Possible biases that can arise from such comparisons have been discussed ...
Analysis of Recording Raingage Data for the Israeli II Experiment. Part II: Differential Day and Night Effects of Cloud Seeding
Publisher: American Meteorological Society
Abstract: This paper reports separate analyses of daytime and nighttime precipitation based on data from recording raingages of the second Israeli randomized experiment. These analyses seemed important because there are a number of ...
Analysis of Recording Raingage Data for the Israeli II Experiment. Part I: Effects of Cloud Seeding on the Components of Daily Rainfall
Publisher: American Meteorological Society
Abstract: Earlier Published analyses of the second Israeli randomized experiment (1969?75) were restricted to 24-h data; this paper provides more details which are based on continuous time data from recording raingages. The present ...
Modeling Temperature Data: An Illustration of the Use of Biplots in Nonlinear Modeling
Publisher: American Meteorological Society
Abstract: A strategy for exploring multivariate data and modeling is presented and illustrated on meteorological data. Its principal tool is the biplot two-dimensional display of data matrices and its three-dimensional analog. ...
Exploratory Analysis of Seeding Effects on Rainfall: Illinois 1989
Publisher: American Meteorological Society
Abstract: Radar-indicated rainfall characteristics from six experimental units randomly selected for AgI treatment were compared with those from six experimental units treated with sand during the summer of 1989 in an exploratory ...