A Midlatitude Climatology and Interannual Variability of 200- and 500-hPa Cut-Off Lows
نویسندگان
چکیده
منابع مشابه
Identification and climatology of cut-off lows near the tropopause.
Cut-off low pressure systems (COLs) are defined as closed lows in the upper troposphere that have become completely detached from the main westerly current. These slow-moving systems often affect the weather conditions at the earth's surface and also work as a mechanism of mass transfer between the stratosphere and the troposphere, playing a significant role in the net flow of tropospheric ozon...
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[1] The occurrence of cutoff lows (COLs) in the Southern Hemisphere at 500 hPa is studied for a 31-year period using atmospheric NCEP-NCAR reanalysis. The methodology combines objective detection and tracking for cyclonic systems with visual inspection in order to select those systems that segregate equatorward from the main westerlies. Hemispheric charts and frequency distributions are present...
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ژورنال
عنوان ژورنال: Journal of Climate
سال: 2020
ISSN: 0894-8755,1520-0442
DOI: 10.1175/jcli-d-19-0497.1