Tropical tropopause
Horizontal transport affecting trace gas seasonality in the Tropical Tropopause Layer (TTL)
... its impact on seasonal variations of ozone, carbon monoxide and water vapor in the Tropical Tropopause Layer (TTL). For this purpose, we use three-dimensional backward trajectories, driven by ECMWF ...
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Processes Controlling Tropical Tropopause Temperature and Stratospheric Water Vapor in Climate Models
... the tropopause, determined in the MetUM by the in- terpolation and conservation schemes used within the advection routine, is found to be particularly ...the tropopause are treated so as to be essentially ...
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The Impact of Two Coupled Cirrus Microphysics–Radiation Parameterizations on the Temperature and Specific Humidity Biases in the Tropical Tropopause Layer in a Climate Model
... In general, the role of cirrus in either heating or cooling the TTL depends not only on the visible optical depth but also on the microphysics and the scattering and absorption properties of atmospheric ice (Baran et al. ...
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Extending water vapor trend observations over Boulder into the tropopause region: Trend uncertainties and resulting radiative forcing
... the tropopause in the UTLS [Oltmans and Hofmann, 1995; Oltmans et ...the tropopause height itself has a posi- tive trend ( ...respective tropopause temperature is globally decreas- ing ( ...observed ...
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Probing the subtropical lowermost stratosphere and the tropical upper troposphere and tropopause layer for inorganic bromine
... and tropopause layer ...Airborne Tropical Tropopause Experiment) project from aboard the Global Hawk (GH) during six deployments over the eastern Pacific in early ...
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Maintenance of polar stratospheric clouds in a moist stratosphere
... Figure 6 shows results for “Eocene” conditions with vary- ing overturning circulation strength and for varying levels of tropospheric methane. The top panel shows annual mean in- frared optical depth of simulated PSCs as ...
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Interannual variability of temperature in the UTLS region over Ganges–Brahmaputra–Meghna river basin based on COSMIC GNSS RO data
... (or tropical) tropopause since QBO is a tropical phenomenon ...The tropopause heights are negatively correlated with their temperatures and, therefore, vary inversely with its temperature, ...
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Greenhouse gas analysis of air samples collected onboard the CARIBIC passenger aircraft
... extra-tropical tropopause has been identified as an important mechanism that couples the chemical composition of the upper tropo- sphere and the lowermost stratosphere (Holton et ...the tropopause a ...
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Tropopause altitude determination from temperature profile measurements of reduced vertical resolution
... the tropical region the determination of both the lapse rate and the cold point tropopause altitude from tempera- ture profiles of degraded altitude resolution typically leads to an underestimation of the ...
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Deckert, Rudolf (2008): Climate Dependencies and Deterministic Variability in Stratospheric Dynamics and Ozone. Dissertation, LMU München: Fakultät für Physik
... the tropical tropopause; the latter would intensify adiabatic cooling and more strongly advect ozone-poor tropo- spheric air into the lower ...to tropical lower-stratospheric ozone concentrations and ...
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Tropical schemes, tropical cycles, and valuated matroids
... Note that the second condition in Proposition 2.6 was crucial in this proof. We are now ready to prove Theorem 1.2. The proof requires understanding the effect of changes of coordinates on tropical varieties and ...
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High resolution Beijing mesosphere–stratosphere–troposphere (MST) radar detection of tropopause structure and variability over Xianghe (39 75° N, 116 96° E), China
... As for the radar echo-power definition, the RT estimation will sometimes fail due to the system problems, even if the thermal tropopause is well defined (Hall et al., 2009). Apart from the system problems (e.g., ...
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Time lag between the tropopause height and the levels of 7Be concentration in near surface air
... the tropopause during warm summer ...the tropopause reaches its highest level, (up to 16 km, monthly average 14 km), during the summer period, especially during June and ...the tropopause height is ...
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Forest Enterprises in Pakistan: Past to Future
... Sustainable forest management is not practiced in its complete form and true sense as its parameters are not yet understood by the forest managers. Forestry resources have been overexploited throughout Pakistan without ...
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Recent Amazon Climate as background for possible ongoing and future changes of Amazon humid forests
... in tropical sea surface temperatures (SSTs). Tropical and North Atlantic SSTs have increased rapidly and steadily since 1990, while Pacific SSTs have shifted during the 1990s from a positive Pacific Decadal ...
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Cirrus Clouds and Multiple Tropopause Events over Buenos Aires
... est tropopause is shown in Figure 3(a) for all clouds with top altitudes above 7 ...first tropopause; that is, cirrus clouds are very likely stuck right under the tropopause and thus, these ...
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Geographical ecology of dry forest tree communities in the West Indies
... of Tropical Ecosystem Studies, University of Puerto Rico, and the United States Department of Agriculture (USDA) Forest Ser- vice (USFS), International Institute of Tropical Forestry (IITF) as part of the ...
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Air temperature, relative humidity, climate regionalization and thermal comfort of Nigeria
... the tropical savanna and montane climate ...montane, Tropical Wet and Dry and Tropical Wet cli- mate regions, however, had lower (than the overall aver- age) mean maximum ...
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APES Chapter 6 Power Point.ppt
... Cold, dry air falls Polar cap Temperate deciduous forest and grassland Desert Tropical deciduous forest Tropical rain forest Equator Tropical deciduous forest Cold, dry air falls P[r] ...
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An investigation of factors relevant to development of teak plantations in South East Asia with particular reference to Burma
... It constitutes 16 per cent of the total forest land of Burma Table 7 , and is subdivided into a tropical wet evergreen and b tropical semi-evergreen types.. 2.1.1 Tropical wet evergreen[r] ...
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