Accession Number : AD0845092

Title :   Application of Radar to Measurement of Surface Precipitation.

Descriptive Note : Semi-annual rept. no. 1, 1 Sep 67-28 Feb 68,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF METEOROLOGY AND PHYSICAL OCEANOG RAPHY

Personal Author(s) : Austin, Pauline M.

Report Date : OCT 1968

Pagination or Media Count : 15

Abstract : A remote PPI with display of three intensity levels in shades of gray and compensation for range variations in scope illumination has been set up for the WR-66 radar. Camera attachments have been added to both radars. Design of the data processor has been completed. Printed circuits have been drawn and chasses have been built. A sensing unit for a continuously and automatically recording raindrop spectrometer has been built. Data taken in a number of storms show clearly that the WR-66 radar does not suffer from the limitations of attenuation, and low sensitivity and resolution which have been observed in the AN/CPS-9 and SCR-615-B radars. Applications and Analysis: Analysis of the mesoscale precipitation patterns in various types of storms and their relation to macroscale parameters is continuing. Coastal cyclones, some overland cyclones from the southwest, cold fronts and air mass storms have been analyzed. Results of a numerical analysis of snowflake aggregation are summarized. (Author)

Descriptors :   *METEOROLOGICAL RADAR), (*ATMOSPHERIC PRECIPITATION, RAINDROPS, SPECTROMETERS, DISPLAY SYSTEMS, STORMS, TROPICAL CYCLONES, AIR MASS ANALYSIS, CONVECTION(ATMOSPHERIC), ATMOSPHERIC MOTION, HEAT TRANSFER, SNOW.

Subject Categories : Meteorology
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE