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Boucher, R. J.

Publications and source records attributed to Boucher, R. J..

7 records
All sourcesNASA NTRSDOE OSTI
NASA NTRS1973

Mesoscale history of a small patch of clear air turbulence.

Sequential analyses of data from a network of eight special rawinsonde stations 100 km apart demonstrate the important effects of mesoscale disturbances in a 2.5-hr episode of light-to-moderate clear air turbulence (CAT). The most significant feature was the development of two turbulent fields below and above a 2-km region of a wind minimum which passed over Wallops Island, Va., near 1530 GMT on Feb. 4, 1970. The small scale of these features precludes their detection in the standard 12-hr observation sequence. The rawinsonde network utilized, which incorporates fine-scale details in both space and time, is adequate to provide a very useful current CAT depiction and an excellent source for the preparation of a short-range forecast of CAT.

Boucher, R. J.↗
NASA NTRS1972

Life cycle of brief CAT episodes determined by mesoscale analysis.

Using finely detailed data of the 1970 Haven Hop rawisonde network, it is shown that accurate delineation of clear air turbulence in space and short-term forecasting of CAT are possible with rawinsondes aviable at short time intervals and in a dense network. The present synoptic rawinsonde network of widely spaced stations with 12-hr observation intervals is insufficient to provide accurate depiction of meteorological functions accompanying CAT.

Boucher, R. J.↗