MESOSCALE STUDIES OF INSTABILITY PATTERNS AND WINDS IN THE TROPICS.

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Abstract:

Iso-echo contoured CAPPI radar data collected manually on 16 July and 28 September, and non-contoured CAPPI data on 1 October 1964 are used to investigate the motions of individual tropical showers at altitudes of 10,000, 20,000, and 30,000 ft. The motions at these altitudes are tested as possible indicators of wind. Echo-motion shear between altitudes is used to illustrate mechanisms by which the showers grow under baroclinic conditions. Vertical profiles of radar reflectivity and precipitation rate from the showers are examined. Reflectivity equations and nomograms for the MPS-4, modified CPS-6B, and WSR-57 radars are presented. The relationship Z300R exp 1.4 is used to relate radar reflectivity to tropical rainfall rates. The attenuation problem at a wavelength of 4.7 cm is described and illustrated. Author

Author(s):
Gerrish, Harold P. ; Hiser, Homer W.
Author Organization(s):
MIAMI UNIV FLA MARINE LAB
Descriptive Note:
Semi-annual rept. no. 3, 1 Jun-30 Nov 64,
Supplementary Note:
Available copy will not permit fully legible reproduction. Reproduction will be made if requested by users of DDC. Copy is not available for public sale.
Annotation:
Mesoscale studies of instability patterns and winds in the tropics.
Pagination:
0069

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
7, ML-65102
Contract/Grant Number(s):
DA36 039sc89111
Project Number(s):
1V0 14501B53A09
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*METEOROLOGY, TROPICAL REGIONS), (*METEOROLOGICAL RADAR, AIR MASS ANALYSIS), (*WIND, TROPICAL REGIONS), FLORIDA, WEATHER FORECASTING, RAINFALL, RADAR REFLECTIONS, RADAR CROSS SECTIONS
Report Date:
1965 Feb 01