Results 41 to 50 of about 700 (138)

Cirrus cloud-temperature interactions in the tropical tropopause layer: a case study [PDF]

Atmospheric Chemistry and Physics, 2011
Thin cirrus clouds in the Tropical Tropopause Layer (TTL) have important ramifications for radiative transfer, stratospheric humidity, and vertical transport.
J. R. Taylor, W. J. Randel, E. J. Jensen
doaj   +1 more source

A model of HDO in the tropical tropopause layer [PDF]

Atmospheric Chemistry and Physics, 2003
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 simulated the abundance of water vapor as well as the ...
A. E. Dessler, S. C. Sherwood
doaj  

Shift in cold-point tropopause trends derived from radiosonde, satellite and reanalysis data [PDF]

Atmospheric Chemistry and Physics
The tropical tropopause layer is the transition region between the well-mixed convective troposphere and the radiatively controlled stratosphere and plays a crucial role in air mass transport between these layers. In this paper, we present updated trends
M. Zolghadrshojaee, S. Tegtmeier, S. M. Davis, R. Pilch Kedzierski, R. Pilch Kedzierski, L. Haimberger   +5 more
doaj   +1 more source

Impact of tropical land convection on the water vapour budget in the tropical tropopause layer [PDF]

Atmospheric Chemistry and Physics, 2014
The tropical deep overshooting convection is known to be most intense above continental areas such as South America, Africa, and the maritime continent. However, its impact on the tropical tropopause layer (TTL) at global scale remains debated.
F. Carminati, P. Ricaud, J.-P. Pommereau, E. Rivière, S. Khaykin, J.-L. Attié, J. Warner   +6 more
doaj   +1 more source

Aerosol composition of the tropical upper troposphere [PDF]

Atmospheric Chemistry and Physics, 2009
Aerosol composition was measured by the NOAA single-particle mass spectrometer (PALMS) aboard the NASA WB-57 high altitude aircraft platform during two Aura Validation Experiment (AVE) campaigns based in Costa Rica in 2004 and 2006. These studies yielded
K. D. Froyd, D. M. Murphy, T. J. Sanford, D. S. Thomson, J. C. Wilson, L. Pfister, L. Lait   +6 more
doaj  

WACCM‐RR: A Regionally‐Refined Version of the Whole Atmosphere Community Climate Model

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 6, June 2026.
Abstract We introduce the Whole Atmosphere Community Climate Model with Regional Refinement (WACCM‐RR) and study the impact of directly resolving gravity waves (GWs) in the mesosphere and lower thermosphere (MLT; 70–140 km). Two simulations of 2010 are compared: “Non‐RR” is a standard WACCM case with a horizontal resolution of ∼1° (111 km) globally ...
M. M. Kupilas, D. R. Marsh, P. H. Lauritzen, C. S. Gardner, M. V. Guarino, J. V. Egan, W. Feng, J. M. C. Plane   +7 more
wiley   +1 more source

Transport of aerosols into the UTLS and their impact on the Asian monsoon region as seen in a global model simulation [PDF]

Atmospheric Chemistry and Physics, 2013
An eight-member ensemble of ECHAM5-HAMMOZ simulations for a boreal summer season is analysed to study the transport of aerosols in the upper troposphere and lower stratosphere (UTLS) during the Asian summer monsoon (ASM).
S. Fadnavis, K. Semeniuk, L. Pozzoli, M. G. Schultz, S. D. Ghude, S. Das, R. Kakatkar   +6 more
doaj   +1 more source

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

Overshooting of clean tropospheric air in the tropical lower stratosphere as seen by the CALIPSO lidar [PDF]

Atmospheric Chemistry and Physics, 2011
The evolution of aerosols in the tropical upper troposphere/lower stratosphere between June 2006 and October 2009 is examined using the observations of the space borne CALIOP lidar aboard the CALIPSO satellite. Superimposed on several volcanic plumes and
J.-P. Vernier, J.-P. Pommereau, L. W. Thomason, J. Pelon, A. Garnier, T. Deshler, J. Jumelet, J. K. Nielsen   +7 more
doaj   +1 more source

On the Role of Dynamical Uncertainties in the Spread of Arctic Ozone Recovery Projections

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Arctic ozone is projected to recover over the 21st century in compliance with the Montreal Protocol. Chemistry‐climate models show a large spread in recovery rates and future changes in key dynamical features such as the polar vortex and the residual circulation.
Samuel Benito‐Barca, Marta Abalos, Natalia Calvo, Alvaro de la Cámara, Blanca Ayarzagüena, Gabriel Chiodo, Hideharu Akiyoshi, Fraser Dennison, Patrick Jöckel, Béatrice Josse, Doug Kinnison, Olaf Morgenstern, David Plummer, Timofei Sukhodolov, Yousuke Yamashita, Shingo Watanabe   +15 more
wiley   +1 more source