A Climatology of 500-hPa Closed Lows and Associated Precipitation in the Northeastern United States
نویسندگان
چکیده
منابع مشابه
The Influence of Regional Storm Tracking and Teleconnections on Winter Precipitation in the Northeastern United States
Secular changes in regional storm tracking are examined as physical mechanisms for observed teleconnections between the New England hydroclimate and four predictor variables: the Southern Oscillation Index, the North Atlantic Oscillation, the Pacific Decadal Oscillation, and regional sea-surface temperatures. The main modes of New England winter precipitation, snowfall, and cyclone variability ...
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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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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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متن کاملWinter precipitation variability and corresponding teleconnections over the northeastern United States
The variability of winter precipitation over the northeastern United States and the corresponding teleconnections with five dominant large-scale modes of climate variability (Atlantic Multidecadal Oscillation, AMO; North Atlantic Oscillation, NAO; Pacific-North American pattern, PNA; Pacific Decadal Oscillation, PDO; and El Niño–Southern Oscillation, ENSO) were systemically analyzed in this stu...
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ژورنال
عنوان ژورنال: Journal of Applied Meteorology and Climatology
سال: 2012
ISSN: 1558-8424,1558-8432
DOI: 10.1175/jamc-d-10-05028.1