搜索结果: 76-90 共查到“大气科学 tropical”相关记录156条 . 查询时间(0.203 秒)
The impact of tropical recirculation on polar composition
tropical recirculation polar composition
2009/5/7
We derive the tropical modal age of air from an analysis of the water vapor tape recorder. We combine the observationally derived modal age with mean age of air from CO2 and SF6 to create diagnostics ...
Water vapour transport in the tropical tropopause region in coupled Chemistry-Climate Models and ERA-40 reanalysis data
Water vapour transport tropical tropopause region coupled Chemistry-Climate Models
2009/5/6
In this study backward trajectories from the tropical lower stratosphere were calculated for the Northern Hemisphere (NH) winters 1995–1996, 1997–1998 (El Niño) and 1998–1999 (La Niña) a...
Air-sea fluxes of biogenic bromine from the tropical and North Atlantic Ocean
Air-sea fluxes biogenic bromine tropical and North Atlantic Ocean
2009/3/13
Air-sea fluxes and bulk seawater and atmospheric concentrations of bromoform (CHBr3) and dibromomethane (CH2Br2) were measured during two research cruises in the northeast Atlantic (53–59° N, June–Jul...
Tropospheric ozone climatology at two Southern Hemisphere tropical/subtropical sites,（Reunion Island and Irene, South Africa）from ozonesondes, LIDAR, and in situ aircraft measurements
Tropospheric ozone climatology Reunion Island and Irene South Africa ozonesondes LIDAR
2009/3/13
This paper presents a climatology and trends of tropospheric ozone in the Southwestern Indian Ocean (Reunion Island) and South Africa (Irene and Johannesburg). This study is based on a multi-instrumen...
The representation of the Tropical Tropopause Layer (TTL) in 13 different Chemistry Climate Models (CCMs) designed to represent the stratosphere is analyzed. Simulations for 1960–2005 and 1980–2100 ar...
Intensification of tropical cyclones in the GFS model
Intensification tropical cyclones GFS model
2009/3/13
Special forecasts from the Global Forecast System (GFS) model were used in this study to evaluate how the intensification process in a tropical cyclone is represented in this model. Several tropical c...
Technical Note: Measurement of the tropical UTLS composition in presence of clouds using millimetre-wave heterodyne spectroscopy
tropical UTLS composition clouds millimetre-wave heterodyne spectroscopy
2009/3/13
The MARSCHALS (Millimetre-wave Airborne Receiver for Spectroscopic CHaracterisation of Atmospheric Limb-Sounding) project has the general objectives of demonstrating the measurement capabilities of a ...
Saharan dust transport and deposition towards the tropical northern Atlantic
Saharan dust transport tropical northern Atlantic
2009/3/13
We present a study of Saharan dust export towards the tropical North Atlantic using the regional dust emission, transport and deposition model LM-MUSCAT. Horizontal and vertical distribution of dust o...
Ozone mixing ratios inside tropical deep convective clouds from OMI satellite measurements
Ozone mixing ratios tropical deep convective clouds OMI satellite measurements
2009/3/12
We have developed a new technique for estimating ozone mixing ratio inside deep convective clouds. The technique uses the concept of an optical centroid cloud pressure that is indicative of the photon...
Mixing processes and exchanges in the tropical and the subtropical UT/LS
Mixing processes tropical subtropical UT/LS
2009/3/12
Both in situ measurements and satellite observations indicate evidence of mixing in the upper troposphere (UT) and the lower-stratosphere (LS). In this study, the measurements performed during the Pre...
Aerosol and thermodynamic effects on tropical cloud systems during TWPICE and ACTIVE
Aerosol and thermodynamic effects tropical cloud systems TWPICE ACTIVE
2009/3/12
Regularly occurring storms over the Tiwi Islands, north of Darwin, Australia are used as a laboratory for investigating the relative importance of thermodynamic parameters, shear and aerosols on the a...
Chemistry-transport modeling of the satellite observed distribution of tropical troposheric ozone
Chemistry-transport modeling satellite observed distribution tropical troposheric ozone
2009/3/12
We have compared the 14-year record of satellite derived tropical tropospheric ozone columns (TTOC) from the NIMBUS--7 Total Ozone Mapping Spectrometer (TOMS) to TTOC calculated by achemistry-transpor...
Reply to: “Tropical cirrus and water vapor: an effective Earth infrared iris feedback?”
Tropical cirrus water vapor effective Earth infrared iris feedback
2009/3/12
In assessing the iris effect suggested by Lindzen et al. (2001), Fu et al. (2002) found that the response of high-level clouds to the sea surface temperature had an effect of reducing the climate sens...
Tropical cirrus and water vapor: an effective Earth infrared iris feedback?
Tropical cirrus water vapor effective Earth infrared iris feedback
2009/3/11
We revisit a model of feedback processes proposed by Lindzen et al. (2001), in which an assumed 22% reduction in the area of tropical high clouds per degree increase in sea surface temperature produce...
Any theory of water vapor in the tropical tropopause layer (TTL) must explain both the abundance and isotopic composition of water there. In previous papers, we presented a model of the TTL that simul...