Accession Number : AD0707633

Title :   CUMULUS CLOUD AND CLOUDBURST PRECIPITATION ON WARM FRONTS IN THE ARCTIC,

Corporate Author : DEFENCE SCIENTIFIC INFORMATION SERVICE OTTAWA (ONTARIO)

Personal Author(s) : Gavrilova,L. A.

Report Date : MAY 1970

Pagination or Media Count : 5

Abstract : Frontal cloud research was carried out during the summers of 1963 to 1965 by an airborne expedition of the Arctic and Antarctic Institute, using a specially equipped IL-14 'Flying Laboratory' aircraft. Flights made in the warm front zone showed in a number of cases that stratus cloud (As and Ns) changed, at a height of 1.5-2 km, into thick cumulus cloud of the type Cu Cong. Cb, the base of which was the upper boundary of the As and Ns. Examples of this were observed during flights over the Kara and Laptev Seas from the coast to latitude 80N. Flying in the frontal cloud was rendered somewhat difficult by intense bumpiness, icing and thunderstorm conditions. Analysis of the synoptic charts showed that meteorological fronts with such cloudiness are for the most part located on the periphery of extensive high blocking anticyclones, or in nearly stationary cyclones blocked from northward motion by anticyclones. (Author)

Descriptors :   (*CUMULUS CLOUDS, ARCTIC REGIONS), (*AIR MASS ANALYSIS, ARCTIC REGIONS), ATMOSPHERIC PRECIPITATION, WIND, ATMOSPHERIC TEMPERATURE, FOG, SNOW, THUNDERSTORMS, ARCTIC OCEAN, METEOROLOGICAL CHARTS, USSR, CANADA

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE