Search
Now showing items 1-8 of 8
Double Cumulative and Lorenz Curves in Weather Modification
Publisher: American Meteorological Society
Abstract: A graphical presentation of precipitation data has been used for some years in which the cumulative percentage of the total mass falling on various days of a sample of precipitation days, ordered from the largest to the ...
Confidence Limits for Seeding Effect in Single-Area Weather Modification Experiments
Publisher: American Meteorological Society
Abstract: A recurring problem in single-area randomized seeding experiments has been the assessment of statistical significance over all experimental units, such as days, when some of the units receive no precipitation. The present ...
Results of a Randomized Hail Suppression Experiment in Northeast Colorado. Part IV: Analysis of Radar Data for Seeding Effect and Correlation with Hailfall
Publisher: American Meteorological Society
Abstract: Radar data collected during the seeding experiment of the National Hail Research Experiment are used in a search for possible effects of seeding. Two types of variables, denoted by P and Q, are defined as daily integrals ...
The Hailpad: Materials, Data Reduction and Calibration
Publisher: American Meteorological Society
Abstract: This paper reports on work carried out in the National Hail Research Experiment (NHRE) on hailpad materials, on procedures for reducing hailpad data, and on hailpad calibration. A recommendation is made for a pad constructed ...
Improvements in Cloud Photogrammetry Using Airborne, Side-Looking, Time-Lapse Cameras
Publisher: American Meteorological Society
Abstract: An airborne photographic system, in which the cameras are coupled with an inertial navigation system, was developed and used in a 1978 convective cloud study, Photogrammetric analysis from such a system is enhanced: ...
Results of a Randomized Hail Suppression Experiment in Northeast Colorado. Part II: Surface Data Base and Primary Statistical Analysis
Publisher: American Meteorological Society
Abstract: An extensive statistical analysis is made of the precipitation data collected during the randomized seeding experiment conducted by the National Hail Research Experiment during 1972-74, aimed at testing the feasibility of ...
Results of a Randomized Hail Suppression Experiment in Northeast Colorado. Part III: Analysis of Hailstone Size Distributions for Seeding and Yearly Effects
Publisher: American Meteorological Society
Abstract: The hailstone size (diameter) distributions measured by hailpads during the 1972-74 randomized seeding experiment of the National Hail Research Experiment are analyzed statistically for evidence of seeding effects and ...
Results of a Randomized Hail Suppression Experiment in Northeast Colorado. Part VII: Seeding Logistics and Post Hoc Stratification by Seeding Coverage
Publisher: American Meteorological Society
Abstract: An analysis of the seeding operations during the National Hail Research Experiment 1972?74 randomized seeding program is carried out for the purpose of critiquing the seeding procedures and establishing the actual rates ...