Download or read book A Method to Predict the Parameters of a Full Spectral Distribution from Instrumentally Truncated Data written by Robert O. Berthel and published by . This book was released on 1980 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes a method of correcting measured hydrometeor distributions that deficient in large-size particles because of instrument truncation. The corrective technique is developed with the analysis of experimental data and the application of the exponential-distribution function. A discussion is presented on the power-function equations used to define hydrometeor environments and the application of the corrected spectra to these mathematical relationships. Equations are presented for the real-time analysis of truncated distribution to provide estimates of the non-truncated spectra. (Author).

Download or read book A Method to Predict the Parameters of a Full Spectral Distribution from Instrumentally Truncated Data written by Robert O. Berthel and published by . This book was released on 1980 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes a method of correcting measured hydrometeor distributions that deficient in large-size particles because of instrument truncation. The corrective technique is developed with the analysis of experimental data and the application of the exponential-distribution function. A discussion is presented on the power-function equations used to define hydrometeor environments and the application of the corrected spectra to these mathematical relationships. Equations are presented for the real-time analysis of truncated distribution to provide estimates of the non-truncated spectra. (Author).

Download or read book A Method to Predict the Parameters of a Full Spectral Distribution from Instrumentally Truncated Data written by Robert O. Berthel and published by . This book was released on 1980 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Techniques for Measuring Liquid Water Content Along a Trajectory written by Rosemary M. Dyer and published by . This book was released on 1981 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: The standard procedure for estimating the point value of liquid water content (M) along the reentry path of a ballistic missile is to use a radar derived value of radar reflectivity factor (Z), with the M to Z relation obtained from aircraft measurements of the particle spectrum. This report contains descriptions of the various techniques used to make the radar and aircraft data compatible. The results of various methods to predict the liquid water content values are compared with aircraft measured values. The extrapolation of instrumentally truncated aircraft measurements to include the entire range of particle sizes is treated in Section 1. Section 2 contains a discussion of the method of deriving nominal M-Z relations, applies the method to data acquired at Kwajalein Missile Range, and provides M-Z relations for rain, small snow, large snow, and bullet rosettes. The introduction of the factor 'k' to convert from aircraft measurements to radar derived values is also discussed in Section 2. The relationship of k with altitude and temperature for data from Kwajalein and Wallops Island is covered in Section 3. Finally, Section 4 contains a determination of the accuracy to which liquid water content can be estimated from climatological storm data for moderate to heavy stratiform winter storms at Wallops Island. The results of Section 4 demonstrate that situations which deviate significantly from climatological averages still require time- specific M-Z relations derived from simultaneous aircraft-radar measurements.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1980 with total page 758 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.

Download or read book The Application of Doubly truncated Hydrometeor Distributions to Numerical Cloud Models written by Robert O. Berthel and published by . This book was released on 1987 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: A number of meteorological applications involving clouds require being able to determine a reasonable hydrometeor particle size distribution when given the mean hydrometeor mass density ('liquid-' or 'ice-water content') over a region of space. Such applications include numerical cloud model with 'parameterized' or 'bulk' microphysics, which have often assumed exponential size distributions. This study proposes a parameterization scheme based on a doubly-truncated exponential particle size distribution, i.e. a distribution that is truncated at both the large and small diameter ends. The necessary inputs to the scheme are the liquid or ice water content and the temperature of the sample, and, in some circumstances, and estimate of the lower truncation limit. Outputs include the parameters of the exponential distribution, including the upper truncation limit. A special set of relationships is used for rain when the largest particles exceed the assumed breakup diameter of 6 mm. The scheme relies on theoretical relationships derived from the equation for the double-truncated distribution, and on empirically-derived relationships. The empirical expressions include relationship between M and Z (where M is the liquid or ice water content and Z is the radar reflectivity) and values for the product Lambda D sum M (where Lambda is the parameter of the exponential distribution and D sub M is the upper truncation limit).

Download or read book Development of a Large Scale Cloud System 23 27 March 1978 written by Ian D. Cohen and published by . This book was released on 1981 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Implications of the Khrgian Mazin Distribution Function for Water Clouds and Distribution Consistencies with Aerosols and Rain written by V. G. Plank and published by . This book was released on 1991 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Changes in the Nature of Fluctuation of Temperature and Liquid Water Content During the Lifetime of a Large scale Storm written by R. M. Dyer and published by . This book was released on 1982 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Changes in the Nature of Fluctuations of Temperature and Liquid Water Content During the Lifetime of a Large scale Storm written by R. M. Dyer and published by . This book was released on 1982 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of a spectral analysis of the horizontal fluctuations in temperature and liquid water content measured at four altitudes daily, during four days in the life cycle of a storm moving eastward across the United States, are discussed, along with a synoptic analysis of the storm. The storm itself was typical of the large-scale systems traveling across the continent during the winter season. Each stage of the storm (development, maturity, and dissipation) exhibited distinctive spectral characteristics. In addition, the evidence is strong that the age and previous history of the system greatly affect the fluctuation spectra. The results of this study support the thesis of a characteristic spectral signature for cloud systems as well as for single clouds. This method may be used to determine the present growth stage of a storm system and its potential for future development. (Author).

Download or read book Investigations of Large Scale Storm Systems written by Arnold A. Barnes and published by . This book was released on 1982 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The microphysics of Large Scale Cloud Systems (LSCS) was investigated by in-situ measurements made from two specially instrumented aircraft, a United States Air Force MC-130E and a Learjet 36 Information was obtained on the distribution of liquid and ice water content, particle size distributions, crystal habits, and other meteorological variables. The morphologies of three storms were investigated in detail as the storms crossed the United States.

Download or read book Environmental Research Papers written by U.S. Air Force Geophysics Laboratory and published by . This book was released on with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1980 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Meteorological and Geoastrophysical Abstracts written by and published by . This book was released on 1980 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Annual Index written by and published by . This book was released on 1980 with total page 982 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1992 with total page 1494 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Practical Guide To Chemometrics written by Paul Gemperline and published by CRC Press. This book was released on 2006-04-16 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: The limited coverage of data analysis and statistics offered in most undergraduate and graduate analytical chemistry courses is usually focused on practical aspects of univariate methods. Drawing in real-world examples, Practical Guide to Chemometrics, Second Edition offers an accessible introduction to application-oriented multivariate meth