Download or read book An Evaluation of Raindrop Sizing and Counting Instruments written by John E. Pearson and published by . This book was released on 1957 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Evaluation of Raindrop Sizing and Counting Instruments written by John E. Pearson and published by . This book was released on 1957 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research Reports written by and published by . This book was released on 1963 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Disdrometer an Instrument for Measuring the Distribution of Raindrop Sizes Encountered in Flight written by Alan Bemis and published by . This book was released on 1951 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction: Certainly one of the most important parameters in cloud physics, and studies associated with cloud physics, is the size distribution and number of the water particles within the region under study. Measurements of cloud particles have been made for many years on mountain tops and for a few years with airplanes. However, measurement of raindrop sizes with an airplane is a very different problem because a raindrop cannot be accelerated to aircraft speeds without breaking it up. This means that one cannot catch a sample raindrop on an airplane for examination, nor can one accelerate a raindrop to aircraft speeds in the laboratory. The difficulty, then, is one of calibration. Radar echoes from rain are becoming of increasing importance to meteorologists and radar engineers. At present our best experimental information concerning the 'density" of rain producing those echoes is based on rainfall rate and raindrop size measurements made at the ground below the region yielding the echo. Some measurements of total liquid water content within the region have also been made (5). Because raindrop size is of such prime importance in weather radar studies and also because of its general meteorological importance, the Signal Corps - M.I.T. Weather Radar Research Project undertook at its beginning to design an airborne drop size measuring instrument. A general discussion of the problem was presented in Section III A 3 c of our First Technical Report (2). Different methods of measurement were discussed and some of the reasons for selecting an optical method were mentioned. The design of a particular instrument was described which aimed at measuring not just individual drop sizes, but also the distribution of sizes. It has been named the Disdrometer (Distribution of Drops Meter). Construction of the first flight model was completed in .1947. This model, and several improved versions of it, have now been flown through many rain storms and have recorded many drop size distributions. Probably the most interesting conclusion from these measurements is that the drop size distribution within a rain storm varies rapidly from point to point, so rapidly that the sampling problem assumes major proportions, and so rapidly that one cannot hope for accurate correlation between the small.scale measurements made on the airplane and the comparatively large region returning the radar echo. Because of this variability it may be unnecessary to attempt very accurate measurements. The Disdrometer, however, was such an attempt and as such it has not yet succeeded. To date its measurements have suffered from a consistent error which leads to much higher total liquid water contents than are indicated by other, more dependable, measurements. Because the cause of this consistent error remains uncertain, the instrument is still under study. This report is, then, an interim report on the work. It covers the history of the development to date, and describes the device completely in its present form

Download or read book Study as to Merits of Various Rapid Raindrop Counting and Sorting Techniques written by Glenn E. Stout and published by . This book was released on 1958 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Production Research Report written by and published by . This book was released on 1960 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Report written by Massachusetts Institute of Technology. Hydrodynamics Laboratory and published by . This book was released on 1965-07 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of the Quantitative Determination of Point and Areal Precipitation by Radar Echo Measurements written by A. L. Sims and published by . This book was released on 1964 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two drop cameras were operated in Illinois and one at Flagstaff, Arizona. Data obtained from these installations are being reduced and analyzed. The rainfall rate-radar reflectivity relationships are summarized. The data from Miami, Florida, has been stratified by synoptic type, rainfall type, and by a measure of the instability. A brief description of an objective means of coalescence curve fitting is described. (Author).

Download or read book Study as to Merits of Various Rapid Raindrop Counting and Sorting Techniques written by Glenn E. Stout and published by . This book was released on 1958 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annotated List of Publications 1895 1970 Illinois State Water Survey written by J. Loreena Ivens and published by . This book was released on 1970 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Note written by University of Chicago. Cloud Physics Laboratory and published by . This book was released on 1960 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Apparatus for Forming Waterdrops written by Robert S. Palmer and published by . This book was released on 1962 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reports on WMO IHD Projects written by World Meteorological Organization and published by . This book was released on 1973 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1970 with total page 1318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Review of Radiation Scattering Methods for Measuring Cloud Droplet Size written by D. C. Baxter and published by . This book was released on 1954 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A STUDY OF RAINDROP SIZE DISTRIBUTIONS AND THEIR VARIATION WITH HEIGHT written by KENNETH REGINALD HARDY and published by . This book was released on 1963 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fiber Qualities and Culture of Phormium in California written by John Milton Webber and published by . This book was released on 1962 with total page 1112 pages. Available in PDF, EPUB and Kindle. Book excerpt: