Radar Hurricane Research.
Abstract
Studies were made of the quantitative nature of precipitation in the three hurricanes on which such data were obtained by the U. M. Radar Meteorological Laboratory. Although IEC units were different for each of the storms, the data were amenable to the calculation of radar attentuation statistics along various observed path lengths of known minimum precipitation rates. Highest rainfall rates were observed in Betsy 1965 where a path of 72 n mi of nearly 1'' per hr (plus some lighter precipitation along the same path) would have caused at least 87 db attenuation at X-band, 29 db at C-band and a bit less than 4 db at S-band wavelengths. Another study was made of radar precipitation echo heights in hurricanes using data from both the U. M. Radar Meteorological Laboratory and U. S. N. WEARECONRON FOUR radars. Although a significant number of echoes penetrate the 30-35,000-ft levels at greater ranges, it was found that most of the taller echoes are within 20 n mi of the eyewall. Furthermore, most of the taller echoes are found in the north and east segments and the areas of such echoes remain rather constant with respect to the moving storm center. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1971
- Accession Number
- AD0732249
Entities
People
- H. V. Senn
Organizations
- Rosenstiel School of Marine, Atmospheric, and Earth Science