Results 1 to 10 of about 8,034 (158)

To Exascale and Beyond—The Simple Cloud‐Resolving E3SM Atmosphere Model (SCREAM), a Performance Portable Global Atmosphere Model for Cloud‐Resolving Scales

Journal of Advances in Modeling Earth Systems
The new generation of heterogeneous CPU/GPU computer systems offer much greater computational performance but are not yet widely used for climate modeling. One reason for this is that traditional climate models were written before GPUs were available and
A. S. Donahue, P. M. Caldwell, L. Bertagna, H. Beydoun, P. A. Bogenschutz, A. M. Bradley, T. C. Clevenger, J. Foucar, C. Golaz, O. Guba, W. Hannah, B. R. Hillman, J. N. Johnson, N. Keen, W. Lin, B. Singh, S. Sreepathi, M. A. Taylor, J. Tian, C. R. Terai, P. A. Ullrich, X. Yuan, Y. Zhang   +22 more
doaj   +4 more sources

Initialization and dynamical stabilization of a cloud-resolving model

Physics Open, 2022
A multiscale cloud-resolving model (CRM) composed of the anelastic grid equations coupled to viscous turbulence subgrid equations for the wind velocity is presented along with an initialization and dynamical stabilization method named Insertion & ...
Paul Krause, Joseph Tribbia
doaj   +2 more sources

Dependence of Convective Cloud Properties and Their Transport on Cloud Fraction and GCM Resolution Diagnosed from a Cloud-Resolving Model Simulation

Journal of Marine Science and Engineering, 2022
The scale-aware convective parameterization for high resolution global climate models must satisfy the requirement that the parameterized subgrid convective transport diminishes as the model resolution increases to convection-resolving resolutions.
Zhanjie Zhang, Guang J. Zhang
doaj   +3 more sources

Spectral cumulus parameterization based on cloud-resolving model [PDF]

Climate Dynamics, 2018
We have developed a spectral cumulus parameterization using a cloud-resolving model. This includes a new parameterization of the entrainment rate which was derived from analysis of the cloud properties obtained from the cloud-resolving model simulation and was valid for both shallow and deep convection.
Yuya Baba
exaly   +2 more sources

Overlap properties of clouds generated by a cloud-resolving model [PDF]

Journal of Geophysical Research, 2003
The overlap properties of ∼850 snapshots of convective cloud fields generated by a cloud‐resolving model are studied and compared with previously published results based on cloud radar observations. Total cloud cover is overestimated by the random overlap assumption but underestimated by the maximum overlap assumption and two standard implementations ...
Lazaros Oreopoulos
exaly   +2 more sources

Nonhydrostatic icosahedral atmospheric model (NICAM) for global cloud resolving simulations [PDF]

Journal of Computational Physics, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Masaki Satoh, Hirofumi Tomita, Hiroaki Miura   +2 more
exaly   +3 more sources

Surface rainfall processes as simulated in a cloud-resolving model [PDF]

Journal of Geophysical Research, 2005
Surface rain rate can be simply formulated with the sum of moisture and cloud sources/sinks. In this study the moisture sink comprises the local moisture change, moisture convergence (with an imposed vertical velocity), and surface evaporation, whereas the cloud source/sink comprises the local hydrometeor change since the cyclic boundary condition ...
Shouting Gao, Xiaopeng Cui, Yushu Zhou   +2 more
exaly   +2 more sources

Global Cloud-Resolving Models [PDF]

Current Climate Change Reports, 2019
Global cloud-resolving models (GCRMs) are a new type of atmospheric model which resolve nonhydrostatic accelerations globally with kilometer-scale resolution. This review explains what distinguishes GCRMs from other types of models, the problems they solve, and the questions their more commonplace use is raising.
Masaki Satoh, Bjorn Stevens, Falko Judt, Marat Khairoutdinov, Shian-Jiann Lin, William M. Putman, Peter Düben   +6 more
openaire   +3 more sources

Early Development and Tuning of a Global Coupled Cloud Resolving Model, and its Fast Response to Increasing CO2

Tellus: Series A, Dynamic Meteorology and Oceanography, 2022
Since the dawn of functioning numerical dynamical atmosphere- and ocean models, their resolution has steadily increased, fed by an exponential growth in computational capabilities.
Thorsten Mauritsen, Rene Redler, Monika Esch, Bjorn Stevens, Cathy Hohenegger, Daniel Klocke, Renate Brokopf, Helmuth Haak, Leonidas Linardakis, Niklas Röber, Reiner Schnur   +10 more
doaj   +1 more source

An Expanded Sensitivity Study of Simulated Storm Life Span to Ventilation Parameterization in a Cloud Resolving Model

Atmosphere, 2023
We performed a sensitivity study on the life span of a numerically simulated storm using the parameterization of the ventilation coefficient. This is an expanded sequel to our previous study, where the ventilation effect of precipitation particles (snow,
Yen-Liang Chou, Pao-Kuan Wang
doaj   +1 more source