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Comparison Study Of Models Used To Prescribe Hydrometeor Water Content Values
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Book Synopsis Comparison Study of Models Used to Prescribe Hydrometeor Water Content Values by : Russell M. Peirce
Download or read book Comparison Study of Models Used to Prescribe Hydrometeor Water Content Values written by Russell M. Peirce and published by . This book was released on 1975 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this report, the calculation of riometer absorption during several PCA events of particular interest is presented. These calculations are based on earlier work in which an improved effective recombination coefficient was derived and an atmospheric model for (1) each month of the year, (2) day and night, and (3) 60 deg N and 90 deg N latitude was presented. In this report, the calculated values of riometer absorption are presented for 5 PCA events: 2 Nov. 69, 7 Mar. 70, 25 Jan. 71, 2 Sep. 71, and 3 Aug. 72. The calculated values of riometer absorption are compared with experimental values measured for both day and night conditions at Thule, Greenland. An approximate connection between riometer absorption and the square-root of the proton flux for nighttime conditions is presented. This relationship, which has previously been applied only for daytime conditions, is discussed both on a fundamental level and on the level of verification by comparison with experiment. In addition, the basic equation widely used to calculate riometer absorption is compared with the original Sen-Wyller result.
Book Synopsis Comparison Study of Models Used to Prescribe Hydrometeor Water Content Values by : C. N. Touart
Download or read book Comparison Study of Models Used to Prescribe Hydrometeor Water Content Values written by C. N. Touart and published by . This book was released on 1979 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: A preliminary study was made of several analytical techniques used to deduce profiles of integrated liquid water content (LWC). Comparison was made with aircraft and/or radar measurements for two sets of cases in order to determine if one or more of the modeling techniques would consistently yield more representative values than the others over a period of time. A brief description of the techniques used and the results of the statistical analyses applied to this study are presented. Also, a comparison of the integrated LWC for each case at the 10, 8, 6, 4 and 2 kilometer and surface levels is presented in tabular form.
Book Synopsis Comparison Study of Models Used to Prescribe Hydrometeor Water Content Values by : Russell M. Peirce
Download or read book Comparison Study of Models Used to Prescribe Hydrometeor Water Content Values written by Russell M. Peirce and published by . This book was released on 1975 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A preliminary study was made of several analytical techniques used to deduce profiles of integrated liquid water content (LWC). Comparison was made with aircraft and/or radar measurements for two sets of cases in order to determine if one or more of the modeling techniques would consistently yield more representative values than the others over a period of time. A brief description of the techniques used and the results of the statistical analyses applied to this study are presented. Also, a comparison of the integrated LWC for each case at the 10, 8, 6, 4 and 2 kilometer and surface levels is presented in tabular form.
Book Synopsis Comparison Study of Models Used to Prescribe Hydrometeor Water Content Values by : C. N. Touart
Download or read book Comparison Study of Models Used to Prescribe Hydrometeor Water Content Values written by C. N. Touart and published by . This book was released on 1979 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A preliminary study was made of several analytical techniques used to deduce profiles of integrated liquid water content (LWC). Comparison was made with aircraft and/or radar measurements for two sets of cases in order to determine if one or more of the modeling techniques would consistently yield more representative values than the others over a period of time. A brief description of the techniques used and the results of the statistical analyses applied to this study are presented. Also, a comparison of the integrated LWC for each case at the 10, 8, 6, 4 and 2 kilometer and surface levels is presented in tabular form.
Book Synopsis COMPARISON STUDY OF MODELS USED TO PRESCRIBE HYDROMETEOR WATER CONTENT VALUES. P.1. PRELIMINARY RESULTS. by : Russel M. Peirce
Download or read book COMPARISON STUDY OF MODELS USED TO PRESCRIBE HYDROMETEOR WATER CONTENT VALUES. P.1. PRELIMINARY RESULTS. written by Russel M. Peirce and published by . This book was released on 1975 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comparison Study of Models Used to Prescribe Hydrometeor Water Content Values by : Chankey N. Touart
Download or read book Comparison Study of Models Used to Prescribe Hydrometeor Water Content Values written by Chankey N. Touart and published by . This book was released on 1979 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three models for inferring atmospheric liquid water content from conventional weather data are compared on the basis of a large sample of predictions for 11 stations in the USSR. Two of the three models were developed at the Air Force Geophysics Laboratory; the third is the Smith-Feddes model of the Air Weather Service. Comparison is in terms of integrated liquid water content and the environmental severity index. For want of independent measurements of water content, no light is shed on the absolute accuracy of these models. (Author).
Book Synopsis COMPARISON STUDY OF MODELS USED TO PRESCRIBE HYDROMETEOR WATER CONTENT VALUES. P.2: USSR DATA. by : Chankey N. Touart
Download or read book COMPARISON STUDY OF MODELS USED TO PRESCRIBE HYDROMETEOR WATER CONTENT VALUES. P.2: USSR DATA. written by Chankey N. Touart and published by . This book was released on 1979 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Evaluation of the Smith-Feddes Model by : Robert O. Berthel
Download or read book An Evaluation of the Smith-Feddes Model written by Robert O. Berthel and published by . This book was released on 1989 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A model designed to produce estimates of water contents and number density distributions at any time and geographical location was published in 1974. Known by its authors names as the 'Smith-Feddes', this model is initiated by gridded, data-base information from the 3DNEPH (or RTNEPH) and Hemispherical analyses. The Smith-Feddes has been used periodically with mixed results and the implicit assumption has been that new, more definitive cloud physics information would improve the model's consistency which is investigated to develop it into a useful tool for future Air Force planning and operations. The initial phase of this study was essentially an exercise to gain familiarity with both the Smith-Feddes and the initiating analyses. Three weather situations were defined by water content and temperature-versus-altitude profiles derived from aircraft measurements. The model was then exercised for the same situations and the results of the separate analyses were then compared. This report describes this investigation and details our observations and conclusions based on the results of this comparison study. It is recommended that no further time be expended in an effort to improve the 3DNEPH/RTHNEPH, Smith-Feddes model, as it is unable to consistently produce water-content values within reasonable error bounds. However, certain cloud-physics concepts used in the model may be incorporated in a new model specifically designed to produce cloud and precipitation estimates from climatological data.
Book Synopsis A Test of the Climatic Normality of Synthetic Profiles of Atmospheric Liquid Water Content Over the USSR in 1973 by : Yutaka Izumi
Download or read book A Test of the Climatic Normality of Synthetic Profiles of Atmospheric Liquid Water Content Over the USSR in 1973 written by Yutaka Izumi and published by . This book was released on 1979 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Air Force Surveys in Geophysics by :
Download or read book Air Force Surveys in Geophysics written by and published by . This book was released on 1980 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Research Papers written by and published by . This book was released on with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Horizontal Scale Variations in Satellite Estimates of Weather Erosion Parameters for Reentry Systems by : James T. Bunting
Download or read book Horizontal Scale Variations in Satellite Estimates of Weather Erosion Parameters for Reentry Systems written by James T. Bunting and published by . This book was released on 1980 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: A weather erosion parameter known as the Environmental Severity Index (ESI) has been estimated using infrared and visible data from satellites. Cloud sampling requirements limited the original prediction equations to satellite data averaged over a horizontal scale of 70 km. Further experiments have demonstrated great utility for satellite estimates on a scale of 10 km and also revealed some systematic differences between the coarse and the fine scale estimates. The ESI averages 1 percent to 10 percent higher for the fine scale estimates and high values of ESI are observed more frequently. (Author).
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1976 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Report on Research at AFCRL. by : Air Force Cambridge Research Laboratories (U.S.)
Download or read book Report on Research at AFCRL. written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1974 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1976 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1976 with total page 1004 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Test of Accuracy of Models Used to Prescribe Hydrometeor Water Content by : Robert W. Lenhard
Download or read book Test of Accuracy of Models Used to Prescribe Hydrometeor Water Content written by Robert W. Lenhard and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
