Results 81 to 90 of about 52,672 (238)

Transport to the Extratropical Stratosphere by Overshooting Storms in Idealized Simulations

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 8, 28 April 2026.
Abstract Deep convection is a significant source of water to the extratropical stratosphere which can alter radiative properties and contribute to ozone loss. Previous studies find it responsible for 40% of mid‐latitude water vapor above 380K. However, the amount of hydration from individual storms and the mechanisms that initiate mixing is less ...
Devin P. Bissell, Christopher J. Nowotarski, Kenneth P. Bowman, Anita D. Rapp   +3 more
wiley   +1 more source

What Sets the Tropical Cold Point in GSRMs During Boreal Winter? Overshooting Convection Versus Cirrus Lofting

Earth and Space Science
The cold point tropopause, the minimum temperature within the tropical upper troposphere‐lower stratosphere region (UTLS), significantly impacts Earth's climate by influencing the amount of water vapor entering the lower stratosphere. Understanding which
Jacqueline M. Nugent, Christopher S. Bretherton, Peter N. Blossey   +2 more
doaj   +1 more source

Aircraft induced contrail cirrus over Europe

Meteorologische Zeitschrift, 2005
Condensation trails (contrails) and aircraft induced cirrus are nowadays a common feature at the mid latitude skies. Previously the impact of aircraft induced cirrus changes has been roughly estimated from observed decadal trends in cirrus cover but the ...
Hermann Mannstein, Ulrich Schumann
doaj   +1 more source

How does the lifetime of detrained cirrus impact the high-cloud radiative effect in the tropics? [PDF]

Atmospheric Chemistry and Physics
The lifetime of cirrus clouds from deep convection plays an important role in determining their overall cloud radiative effect (CRE). The net CRE of cirrus clouds from deep convection is close to zero over their whole lifetime.
G. Horner, E. Gryspeerdt, E. Gryspeerdt
doaj   +1 more source

Impact of Non‐Classical Gravity‐Wave Dynamics on Middle‐Atmosphere Mean Flow and Solar Tides

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 8, 28 April 2026.
Abstract Conventional gravity‐wave (GW) parameterizations neglect three aspects of GW dynamics. Instead of momentum and entropy fluxes they use Eliassen‐Palm fluxes, thereby neglecting the possibility that resolved flow are not in geostrophic and hydrostatic balance.
T. Kühner, G. S. Völker, U. Achatz
wiley   +1 more source

Tropical cirrus evolution in a kilometer-scale model with improved ice microphysics [PDF]

Atmospheric Chemistry and Physics
Tropical cirrus clouds form through in situ ice nucleation below the homogeneous freezing temperature of water or through detrainment from deep convection.
B. Gasparini, R. Atlas, A. Voigt, M. Krämer, M. Krämer, P. N. Blossey   +5 more
doaj   +1 more source

Simulations of Contrail Optical Properties and Radiative Forcing for Various Crystal Shapes [PDF]

, 2011
The aim of this study is to investigate the sensitivity of radiative-forcing computations to various contrail crystal shape models. Contrail optical properties in the shortwave and longwave ranges are derived using a ray-tracing geometric method and ...
Markowicz, Krzysztof M., Witek, Marcin L.   +1 more
core   +1 more source

Atmospheric Adjustments to In Situ Cirrus Formation in Ice Supersaturated Regions

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 8, 28 April 2026.
Abstract High‐level ice clouds exert a net warming on the climate system because their greenhouse effect outweighs their albedo effect. Focusing on in‐situ cirrus, their formation involves the conversion of upper‐tropospheric water vapor into ice crystals.
Jérémie Juvin‐Quarroz, Audran Borella, Patryk Kiepas, Thomas Dubos, Olivier Boucher, Nicolas Bellouin   +5 more
wiley   +1 more source

FIRE Cirrus on October 28, 1986: LANDSAT; ER-2; King Air; theory [PDF]

A simultaneous examination was conducted of cirrus clouds in the FIRE Cirrus IFO-I on 10/28/86 using a multitude of remote sensing and in-situ measurements. The focus is cirrus cloud radiative properties and their relationship to cloud microphysics.
Arduini, Robert F., Heymsfield, Andrew J., Parker, Lindsay, Spinhirne, James D., Suttles, John T., Welch, Ronald M., Wielicki, Bruce A.   +6 more
core   +1 more source

The Life Cycle of a Stratospheric Smoke Plume as Seen From EarthCARE—Tracking a Plume From Canada to Europe

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract At the end of May 2025, extremely strong wildfires in Canada produced several pyrocumulonimbus clouds lifting the smoke particles up to the lower stratosphere. Stratospheric aerosol optical depths of more than 2.5 were observed by the ATmospheric LiDAR (ATLID) onboard of the Earth Cloud, Aerosol and Radiation Explorer (EarthCARE) satellite ...
Moritz Haarig, Holger Baars, Leonard König, David P. Donovan, Albert Ansmann, Sergey Khaykin, Romain Ceolato, Benedikt Gast, Crisofer Jimenez, Athena A. Floutsi, Robin J. Hogan, Annabel Chantry, Fabien Marnas, Johanna Roschke, Gerd‐Jan van Zadelhoff, Ulla Wandinger   +15 more
wiley   +1 more source