Observed Doppler Spectra of Hail
| dc.contributor.author | Battan, Louis J. | |
| dc.contributor.author | Theiss, John B. | |
| dc.date.accessioned | 2019-09-19T03:10:38Z | |
| dc.date.available | 2019-09-19T03:10:38Z | |
| dc.date.issued | 1971-06-15 | |
| dc.identifier.uri | http://hdl.handle.net/10150/634516 | |
| dc.description | ||
| dc.description.abstract | Observations of Doppler spectra from particles 610 m above the ground were obtained by means of a vertically pointing X-band radar during a period when large hail was falling at the ground. It was found that the variance of the Doppler spectrum was a fairly good indicator of maximum hailstone sizes. Calculations of ice-particle size spectra were made on the basis of assumptions of particle shape, composition and fall speed. The many assumptions needed to bring calculated ice-sphere spectra into approximate conformity with observations indicates the complexity of this procedure and the need for at least one more independent observation of the properties of the hailstones. Measurements of depolarization might yield an independent estimate of particle shape. It is concluded that the pronounced minima in the backscattering curves of large ice spheres should serve as an independent indicator of the speed of vertical air motions. | |
| dc.description.sponsorship | This research has been supported by the Atmospheric Sciences Section, National Science Foundation under Grants GA-1431 and GA-24134. | |
| dc.language.iso | en | |
| dc.publisher | Institute of Atmospheric Physics, University of Arizona (Tucson, AZ) | |
| dc.relation.ispartofseries | University of Arizona, Institute of Atmospheric Physics, Scientific Report No. 25 | |
| dc.rights | Public Domain: This material has been identified as being free of known restrictions under U.S. copyright law, including all related and neighboring rights. | |
| dc.rights.uri | http://creativecommons.org/publicdomain/mark/1.0/ | |
| dc.source | Digitized from a paper copy provided by the Department of Hydrology and Atmospheric Sciences. | |
| dc.subject | Hail -- Measurement. | |
| dc.subject | Radar meteorology. | |
| dc.subject | Meteorology. | |
| dc.subject | Doppler radar -- Scientific applications. | |
| dc.title | Observed Doppler Spectra of Hail | |
| dc.type | text | |
| dc.type | Report | |
| dc.contributor.department | Institute of Atmospheric Physics, The University of Arizona | |
| dc.identifier.oclc | 16573976 | |
| dc.description.collectioninformation | This title from the Institute of Atmospheric Physics Reports collection is made available by the Department of Hydrology & Atmospheric Sciences and the University Libraries, University of Arizona. If you have questions about titles in this collection, please contact repository@u.library.arizona.edu. | |
| refterms.dateFOA | 2019-09-19T03:10:38Z |
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