Results 1 to 10 of about 114,581 (256)

Impact of different definitions of clear-sky flux on the determination of longwave cloud radiative forcing: NICAM simulation results [PDF]

Atmospheric Chemistry and Physics, 2010
Using one month of the cloud-resolving Nonhydrostatic Icosahedral Atmospheric Model (NICAM) simulations, we examined the impact of different definitions of clear-sky flux on the determination of longwave cloud radiative forcing (CRF).
B. J. Sohn, T. Nakajima, M. Satoh, H.-S. Jang   +3 more
doaj   +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

Convection‐Permitting Simulations With the E3SM Global Atmosphere Model

Journal of Advances in Modeling Earth Systems, 2021
This paper describes the first implementation of the Δx = 3.25 km version of the Energy Exascale Earth System Model (E3SM) global atmosphere model and its behavior in a 40‐day prescribed‐sea‐surface‐temperature simulation (January 20 through February 28,
P. M. Caldwell, C. R. Terai, B. Hillman, N. D. Keen, P. Bogenschutz, W. Lin, H. Beydoun, M. Taylor, L. Bertagna, A. M. Bradley, T. C. Clevenger, A. S. Donahue, C. Eldred, J. Foucar, J.‐C. Golaz, O. Guba, R. Jacob, J. Johnson, J. Krishna, W. Liu, K. Pressel, A. G. Salinger, B. Singh, A. Steyer, P. Ullrich, D. Wu, X. Yuan, J. Shpund, H.‐Y. Ma, C. S. Zender   +29 more
doaj   +1 more source

Fitting Cumulus Cloud Size Distributions From Idealized Cloud Resolving Model Simulations

Journal of Advances in Modeling Earth Systems, 2023
Whereas it is now widely accepted that cumulus cloud sizes are power‐law distributed, characteristic exponents reported in the literature vary greatly, generally taking values between 1 and >3.
Julien Savre, George Craig
doaj   +1 more source

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   +1 more source

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   +1 more source

A Physically Based Definition of Convectively Generated Density Currents: Detection and Characterization in Convection‐Permitting Simulations

Journal of Advances in Modeling Earth Systems, 2021
In this study, a conceptual model to define convective density currents is proposed. Based on theory, observations and modeling studies, we define convective density currents as 3D coherent structures with an anomalously cold core, an adjacent wind gust,
Nicolas Rochetin, Cathy Hohenegger, Ludovic Touzé‐Peiffer, Najda Villefranque   +3 more
doaj   +1 more source

The Cloud-resolving model Radar SIMulator (CR-SIM) Version 3.3: description and applications of a virtual observatory [PDF]

Geoscientific Model Development, 2020
Ground-based observatories use multisensor observations to characterize cloud and precipitation properties. One of the challenges is how to design strategies to best use these observations to understand these properties and evaluate weather and climate ...
M. Oue, A. Tatarevic, P. Kollias, P. Kollias, D. Wang, K. Yu, A. M. Vogelmann   +6 more
doaj   +1 more source

Tropical variability simulated in ICON-A with a spectral cumulus parameterization [PDF]

, 2020
We implemented a spectral cumulus parameterization based on a cloud-resolving model (SC scheme) in the icosahedral nonhydrostatic atmospheric model (ICON-A).
Baba, Y., Giorgetta, M.
core   +2 more sources