منابع مشابه
Dehydration in tropical tropopause layer
In situ observations of “cold trap” dehydration in the western tropical Pacific F. Hasebe, M. Fujiwara, N. Nishi, M. Shiotani, H. Vömel, S. Oltmans, H. Takashima, S. Saraspriya, and N. Komala Faculty of Environmental Earth Science, Hokkaido University, Sapporo, Japan Geophysical Institute, Kyoto University, Kyoto, Japan Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Jap...
متن کاملA Climatology of the Tropical Tropopause Layer
The tropical tropopause layer (TTL) is a transition region between the troposphere and the stratosphere. In this study the vertical extent of the TTL is diagnosed from radiosonde and ozonesonde profiles in the tropics and a climatology of this layer is presented. The radiative balance in the TTL is also characterized. The TTL is locally defined as extending from the level of the lapse rate mini...
متن کاملMaintenance of tropical tropopause layer cirrus
5 [1] A two-dimensional cloud resolving model with explicit bin microphysics is used to 6 study the maintenance of tropical tropopause layer (TTL) cirrus. Numerical simulations 7 using this model show that a TTL cirrus with a maximum radiative heating rate of 3 K/day 8 is able to self-maintain for as long as 2 days if it contains ice crystals whose initial 9 mean radius is smaller than about 5 ...
متن کاملIce nucleation and dehydration in the Tropical Tropopause Layer.
Optically thin cirrus near the tropical tropopause regulate the humidity of air entering the stratosphere, which in turn has a strong influence on the Earth's radiation budget and climate. Recent high-altitude, unmanned aircraft measurements provide evidence for two distinct classes of cirrus formed in the tropical tropopause region: (i) vertically extensive cirrus with low ice number concentra...
متن کاملIsotopes, seasonal signals, and transport near the tropical tropopause
A recent model study (Sherwood and Dessler 2001) found that dehydration of air within energetic overshooting convective cells, followed by slow lofting into the stratosphere, could account for moisture levels in the lower stratosphere and upper troposphere given realistic horizontal transports and diabatic circulations. Here, we present augmented model simulations of transport across the tropic...
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ژورنال
عنوان ژورنال: Journal of Aerosol Science
سال: 1998
ISSN: 0021-8502
DOI: 10.1016/s0021-8502(98)90507-9