Accession Number : AD0016323


Title :   CYCLOGENESIS OVER SOUTHERN EUROPEAN AND MEDITERRANEAN WATERS


Corporate Author : NAVAL AIR STATION NORFOLK VA


Personal Author(s) : George, Joseph J ; Wolff, Paul M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/016323.pdf


Report Date : Nov 1952


Pagination or Media Count : 47


Abstract : The Northern Hemisphere Historical Weather Maps from 1945 through 1951 were used as a basis for this investigation. Results indicate that the surface cyclo-genesis is highly dependent on the upper-air flow pattern as given by the contours at 500 mb. Low-level thermal fields provide a much less important contribution than they do over the US, especially in the earlier stages. The upper-flow patterns are classified as southwesterly, northwesterly, blocking, and westerly. Cyclogenesis following the westerly pattern is cataloged, and a method is given for its prediction 48 hr in advance. The composite case is illustrated along with detailed analyses of 16 recent synoptic examples. Data from 51 storms of this type from 1945 to 1951 are included.


Descriptors :   *CYCLOGENESIS , ATMOSPHERIC MOTION , LOW LEVEL , SOUTHERN EUROPE , UPPER ATMOSPHERE , THERMAL PROPERTIES , PATTERNS


Subject Categories : Meteorology


Distribution Statement : APPROVED FOR PUBLIC RELEASE