Static Stability in the Extratropical Tropopause Region
نویسندگان
چکیده
منابع مشابه
Fine-scale structure of the extratropical tropopause region
[1] A vertically high resolved climatology of the thermal and wind structure of the extratropical tropopause region is presented. The climatology is based on data from 80 U.S. radiosonde stations covering the period 1998–2002. Time averages for each radiosonde station are computed using the tropopause as a common reference level for all vertical profiles within the mean. A strong inversion at t...
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The physical processes that drive the fluctuations of the extratropical tropopause height are examined with the National Centers for Environmental Prediction–National Center for Atmospheric Research (NCEP–NCAR) reanalysis data. A composite zonal-mean heat budget analysis for the Northern Hemisphere winter shows that fluctuations in the extratropical tropopause height result not only from a warm...
متن کاملThe roles of convection, extratropical mixing, and in-situ freeze-drying in the tropical tropopause layer
Mechanisms for transporting and dehydrating air across the tropical tropopause layer (TTL) are investigated with a conceptual two dimensional (2-D) model. The 2-D TTL model combines the Holton and Gettelman cold trap dehydration mechanism (Holton and Gettelman, 2001) with the two column convection model of Folkins and Martin (2005). We investigate 3 possible transport scenarios through the TTL:...
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چکیده ندارد.
15 صفحه اولOn the Signatures of Equatorial and Extratropical Wave Forcing in Tropical Tropopause Layer Temperatures
Temperatures in the tropical tropopause layer (TTL) play an important role in stratosphere–troposphere exchange and in the formation and maintenance of thin cirrus clouds. Many previous studies have examined the contributions of extratropical and equatorial waves to the TTL using coarse-vertical-resolution satellite and reanalysis data. In this study, the authors provide new insight into the ro...
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ژورنال
عنوان ژورنال: Journal of the Atmospheric Sciences
سال: 2003
ISSN: 0022-4928,1520-0469
DOI: 10.1175/1520-0469(2003)060<1395:ssitet>2.0.co;2