Results 41 to 50 of about 55,169 (227)

A black shale protolith for gold-tellurium mineralisation in the Dalradian Supergroup (Neoproterozoic) of Britain and Ireland [PDF]

, 2017
The Dalradian Supergroup of Britain and Ireland is mineralised by gold-tellurium vein deposits. The host succession includes carbonaceous, pyritic shales (pelites) which were a source of trace elements, including gold and tellurium.
Armstrong, J., Boyce, A.J., Bullock, L., Feldmann, J., Parnell, J., Perez, M.   +5 more
core   +1 more source

Improvement in the decadal prediction skill of the North Atlantic extratropical winter circulation through increased model resolution [PDF]

, 2019
In this study the latest version of the MiKlip decadal hindcast system is analyzed, and the effect of an increased horizontal and vertical resolution on the prediction skill of the extratropical winter circulation is assessed.
A. Richling, C. Kadow, C. Kadow, H. Pohlmann, H. Pohlmann, J. Grieger, M. Schuster, S. Illing, S. Pfahl, T. Schartner, U. Ulbrich, W. A. Müller   +11 more
core   +2 more sources

Comparing Loon Superpressure Balloon Observations of Gravity Waves in the Tropics With Global Storm‐Resolving Models

Journal of Geophysical Research: Atmospheres, 2023
AbstractSuperpressure balloons, which drift approximately on isopycnal surfaces, get displaced by gravity waves and are thus capable of detecting gravity wave signatures. The project Loon provides superpressure balloon data in the upper troposphere and lower stratosphere from 2011 to 2021.
Laura Köhler, Brian Green, Claudia C. Stephan   +2 more
openaire   +3 more sources

How the representation of microphysical processes affects tropical condensate in the global storm-resolving model ICON [PDF]

Atmospheric Chemistry and Physics
Cloud microphysics is a prime example of processes that remain unresolved in atmospheric modeling at storm-resolving resolution. In this study, we explore how uncertainties in the representation of microphysical processes affect the tropical condensate ...
A. K. Naumann, A. K. Naumann, M. Esch, B. Stevens   +3 more
doaj   +1 more source

Evaluation of Global Climate and Storm-Resolving Model Representations of Mixed-Phase Clouds and Their Hemispheric Contrasts

Atmosphere
Mixed-phase clouds, in which liquid droplets and ice crystals coexist at temperatures between −38 °C and 0 °C, play a critical role in Earth’s radiation budget.
Olimpia Bruno, Jonah K. Shaw, Trude Storelvmo, Corinna Hoose   +3 more
doaj   +1 more source

A Climatology of the Tropospheric Thermal Stratification Using Saturation Potential Vorticity [PDF]

, 2007
The condition of convective neutrality is assessed in the troposphere by calculating the saturation potential vorticity P* from reanalysis data. Regions of the atmosphere in which saturation entropy is constant along isosurfaces of absolute angular ...
Korty, Robert L., Schneider, Tapio
core   +1 more source

Tropical Cirrus in Global Storm‐Resolving Models: 2. Cirrus Life Cycle and Top‐of‐Atmosphere Radiative Fluxes

Earth and Space Science, 2022
Cirrus clouds of various thicknesses and radiative characteristics extend over much of the tropics, especially around deep convection. They are difficult to observe due to their high altitude and sometimes small optical depths. They are also difficult to
S. M. Turbeville, J. M. Nugent, T. P. Ackerman, C. S. Bretherton, P. N. Blossey   +4 more
doaj   +1 more source

Impact of warmer sea surface temperature on the global pattern of intense convection: insights from a global storm resolving model

Geophysical Research Letters, 2022
AbstractIntense convection (updrafts exceeding 10 m s−1) plays an essential role in severe weather and Earth's energy balance. Despite its importance, how the global pattern of intense convection changes in response to warmed climates remains unclear, as simulations from traditional climate models are too coarse to simulate intense convection.
Kai‐Yuan Cheng, Lucas Harris, Christopher Bretherton, Timothy M. Merlis, Maximilien Bolot, Linjiong Zhou, Alex Kaltenbaugh, Spencer Clark, Stephan Fueglistaler   +8 more
openaire   +1 more source

Radiative, Hydrologic, and Circulation Responses to Warming in Cess‐Potter Simulations Using the Global 3.25‐km SCREAM

Journal of Advances in Modeling Earth Systems
Using the global 3.25‐km Simple Cloud Resolving E3SM Atmosphere Model (SCREAM 3 km), a pair of 13‐month Cess‐Potter simulations are performed to quantify the radiative feedbacks and the hydrologic and circulation responses to warming. Large‐scale aspects
C. R. Terai, N. D. Keen, P. M. Caldwell, H. Beydoun, P. A. Bogenschutz, L.‐W. Chao, B. R. Hillman, H.‐Y. Ma, M. D. Zelinka, L. Bertagna, A. M. Bradley, T. C. Clevenger, A. S. Donahue, J. Foucar, J.‐C. Golaz, O. Guba, W. Hannah, J. Lee, W. Lin, N. Mahfouz, J. Mülmenstädt, A. G. Salinger, B. Singh, S. Sreepathi, Y. Qin, M. A. Taylor, P. A. Ullrich, W.‐Y. Wu, X. Yuan, C. S. Zender, Y. Zhang   +30 more
doaj   +1 more source

Lightning NOx Production and Its Consequences for Tropospheric Chemistry [PDF]

, 2005
Cloud-resolving case-study simulations of convective transport and lightning NO production have yielded results which are directly applicable to the design of lightning parameterizations for global chemical transport models.
Pickering, Kenneth E.
core   +2 more sources