Results 91 to 100 of about 3,795,130 (207)

Causes of variability in the summertime Antarctic boundary-layer climate [PDF]

, 2007
A high-resolution one-dimensional atmospheric model is used to assess the contribution of various surface characteristics and external forcings on the structure and dynamics of the atmospheric boundary layer (ABL) over the Antarctic Plateau in summer ...
van den Broeke, M.R., van As, D., Afd Marine and Atmospheric Research, Sub Dynamics Meteorology, Marine and Atmospheric Research   +4 more
core  

Probing the atmospheric dynamics, clouds and chemistry of brown dwarfs and young giant exoplanets

Brown dwarfs and young giant exoplanet are subject to variability and colour changes as the L/T transition. Clouds are expected to be the main driver of the L/T. Using a three-dimensional Global Climate Model, we show that clouds play a major role in shaping the atmospheric properties of brown dwarfs, in agreement with the observed variability and L/T ...
Maio, Francesco, Bonnefoy, M., Chauvin, G., Lacour, S., Nowak, M., Charnay, B., Tremblin, P., Homeier, D., Morley, C., Fortney, J., Denis, A., Petrus, S., Palma-Bifani, P.   +12 more
openaire   +2 more sources

Ab Initio Quantum Dynamics as a Scalable Solution to the Exoplanet Opacity Challenge: A Case Study of CO₂ in a Hydrogen Atmosphere

The Astrophysical Journal
Abstract Light–matter interactions lie at the heart of our exploration of exoplanetary atmospheres. Interpreting data obtained by remote sensing is enabled by meticulous, time- and resource-consuming work aiming at deepening our understanding of such interactions (i.e., opacity models). Recently, P. Niraula et al.
Laurent Wiesenfeld, Prajwal Niraula, Julien de Wit, Nejmeddine Jaïdane, Iouli E. Gordon, Robert J. Hargreaves   +5 more
openaire   +3 more sources

exoplanet-dev/exoplanet: exoplanet v0.3.2

, 2020
Fixes a documentation bug introduced in v0.3.
Dan Foreman-Mackey, Eric Agol, Tom Barclay, Ian Czekala, Rodrigo Luger, Adrian Price-Whelan   +5 more
core   +1 more source

On the Dynamics and Water Mass Transformation of a Boundary Current Connecting Alpha and Beta Oceans [PDF]

, 2018
A subpolar marginal sea, like the Nordic seas, is a transition zone between the temperature-stratified subtropics (the alpha ocean) and the salinity-stratified polar regions (the beta ocean).
Spall, M.A., Spall, Michael A., Eldevik, T., Lambert, Erwin, Sub Dynamics Meteorology, Eldevik, Tor, Marine and Atmospheric Research, Lambert, E.   +7 more
core   +2 more sources

A Comprehensive Analysis of Spitzer 4.5 μm Phase Curves of Hot Jupiters

The Astronomical Journal
Although exoplanetary science was not initially projected to be a substantial part of the Spitzer mission, its exoplanet observations set the stage for current and future surveys with JWST and Ariel.
Lisa Dang, Taylor J. Bell, Ying (Zoe) Shu, Nicolas B. Cowan, Jacob L. Bean, Drake Deming, Eliza M.-R. Kempton, Megan Weiner Mansfield, Emily Rauscher, Vivien Parmentier, Alexandra Rochon, Kevin B. Stevenson, Mark Swain, Laura Kreidberg, Tiffany Kataria, Jean-Michel Désert, Robert Zellem, Jonathan J. Fortney, Nikole K. Lewis, Michael Line, Caroline Morley, Adam Showman   +21 more
doaj   +1 more source

A Direct Comparison between the Use of Double Gray and Multiwavelength Radiative Transfer in a General Circulation Model with and without Radiatively Active Clouds

The Astrophysical Journal
Inhomogeneous cloud formation and wavelength-dependent phenomena are expected to shape hot Jupiter atmospheres. We present a general circulation model with multiwavelength “picket fence” radiative transfer and radiatively active, temperature-dependent ...
Isaac Malsky, Emily Rauscher, Michael T. Roman, Elspeth K. H. Lee, Hayley Beltz, Arjun Savel, Eliza M.-R. Kempton, L. Cinque   +7 more
doaj   +1 more source

Dynamically coupled kinetic chemistry in brown dwarf atmospheres – II. Cloud and chemistry connections in directly imaged sub-Jupiter exoplanets

Monthly Notices of the Royal Astronomical Society
ABSTRACT With JWST slated to gain high-fidelity time-dependent data on brown dwarf atmospheres, it is highly anticipated to do the same for directly imaged, sub-Jupiter exoplanets. With this new capability, the need for a full three-dimensional (3D) understanding to explain spectral features and their time dependence is becoming a vital ...
Elspeth K H Lee, Xianyu Tan, Shang-Min Tsai   +2 more
openaire   +2 more sources

Future surface mass balance of the Antarctic ice sheet and its influence on sea level change, simulated by a regional atmospheric climate model [PDF]

, 2013
A regional atmospheric climate model with multi-layer snow module (RACMO2) is forced at the lateral boundaries by global climate model (GCM) data to assess the future climate and surface mass balance (SMB) of the Antarctic ice sheet (AIS).
van den Broeke, M.R., Rae, J.G.L., Sub Dynamics Meteorology, Marine and Atmospheric Research, van Meijgaard, E., van de Berg, W.J., Ligtenberg, S.R.M.   +6 more
core   +1 more source

Helium-poor Winds Do Not Require Helium-poor Planets

The Astrophysical Journal
Observations of the metastable He i 10830 Å triplet have revealed escaping exoplanet atmospheres whose inferred helium abundances range from nearly nebular compositions to strongly helium-depleted winds. Such depletion is commonly interpreted as evidence
Leonardos Gkouvelis, Francisco J. Pozuelos   +1 more
doaj   +1 more source