Radar precipitation echo motion in Hurricane Donna
Main Article Content
Abstract
Radar data consisting of about 3,800 precipitation echoes were obtained by analyzing film from several radars during the same time period in Hurricane Donna. These data are combined to illustrate for the first time the complete field of relatively simultaneous echo motion at almost all ranges and azimuths in a hurricane. The field of radar echo motion in Hurricane Donna on 9 September 1960 is then compared with local surface and other winds; and also on 9 an d 10 September with radar precipitation echo motion data from Hurricanes Edna 1954, Connie, Diane and lone 1955, Audrey 1957, and Daisy and Helene 1958, When storm center velocity is eliminated, it is shown that the resulting relative echo motion maximums occur most often to the left of the direction. Possible explanations for this echo motion behavior are discussed.
Article Details
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
References
KESSLER, III, E. & D. ATLAS. 1956. Radar Synoptic Analysis of Hurricane Edna, 1954. Geophys. Res. Paper 50, A.F.C.R.C., (Bedford, Mass.), pp. 22-25. DOI: https://doi.org/10.21236/AD0106016
LIGDA, M. G. H. 1949. Analysis of Motion of Small Precipitation Areas in the Hurricane. M.I.T. Technical Note No. 3, pp. 30-34.
LIGDA, M. G. H. & W. A. MAYHEW. 1954. On the Relationship between the Velocities of Small Precipitation Areas and Geostrophic Winds. Jour. Meteorology, XI : 421-423. DOI: https://doi.org/10.1175/1520-0469(1954)011<0421:OTRBTV>2.0.CO;2
McINTYRE, H. D. 1950. Radar Study on the Motion of Small Precipitation Areas in Hurricanes Carol and Edna. M.l.T. Technical Note No. 9, pp. 4-5.
ROCKNEY, V. D. 1956. Hurricane Detection and Other Means. Tropical Cyclone Symposium (Brisbane, Australia), Paper No. 10.
SENN, H. V. & H. W. HISER. 1959. On the Origin of Hurricane Spiral Bands. Jour. Meterology. DOI: https://doi.org/10.1175/1520-0469(1959)016<0419:OTOOHS>2.0.CO;2
----. 1960. The Mean Motion of Radar Echoes in the Complete Hurricane. Proc. 8th. Weather Radar Conference (San Francisco, Calif.).
----. 1961. Effectiveness of Various Radars in Tracing Hurricanes. Proc. Second Tech. Confer. on Hurricanes and Tropical Meteorology. (Miami Beach, Fla.).
SIMPSON, R. H. & H. RIEHL. 1958. Mid-Tropospheric Ventilation on a Construction Hurricane Development and Maintenance. Proc. Second Tech. Confer. on Hurricanes and Tropical Meteorology, pp. D1-1/D4-10.