Results 1 to 10 of about 1,669 (165)

Improvement in the Modeled Representation of North American Monsoon Precipitation Using a Modified Kain–Fritsch Convective Parameterization Scheme

Atmosphere, 2018
A commonly noted problem in the simulation of warm season convection in the North American monsoon region has been the inability of atmospheric models at the meso-β scales (10 s to 100 s of kilometers) to simulate organized convection, principally ...
Thang M Luong, Christopher L Castro, Hsin-I Chang   +2 more
exaly   +3 more sources

Formulation of a dynamic convective adjustment time-scale in the CESM1.2 and its influence on the Indian summer monsoon simulations [PDF]

Scientific Reports
This study formulates and implements a dynamic convective adjustment time-scale $$\:(\tau\:$$ ) in the convective parameterization scheme of CESM1.2, replacing the default fixed $$\:\tau\:$$ .
Raju Pathak, Sandeep Sahany, Saroj Kanta Mishra, Jingyu Wang   +3 more
doaj   +2 more sources

Development and Application of a New Convective Entrainment Rate Parameterization for Improving Precipitation Simulation Over the Tibetan Plateau and Its Surrounding Areas

Journal of Advances in Modeling Earth Systems
The Tibetan Plateau (TP) significantly impacts the global climate. TP's unique geographical conditions make it one of the areas with the largest precipitation biases in numerical models.
Junjun Li, Chunsong Lu, Jinghua Chen
exaly   +2 more sources

Wind Gust Parameterization Assessment under Convective and Non-convective Events: A Case Study at the Kertajati International Airport

JIF (Jurnal Ilmu Fisika), 2023
Wind gusts (gusts) are sudden increases in wind speed that potentially cause severe damage to infrastructure. Gusts occur within several seconds but numerical weather models typically predict future wind with a time step of tens of seconds or minutes ...
Muhammad Rafid Zulfikar, Muhammad Rais Abdillah, Prasanti Widyasih Sarli   +2 more
doaj   +1 more source

The Impact of Scale-Aware Parameterization on the Next-Generation Global Prediction System in Taiwan for Front Predictions

Atmosphere, 2022
In order to improve the precipitation forecast of the next-generation Global Prediction System with the Finite-Volume Cubed-Sphere Dynamical Core in Taiwan’s Central Weather Bureau, this study modified the convective processes in the New Simplified ...
Chang-Hung Lin, Ming-Jen Yang, Ling-Feng Hsiao, Jen-Her Chen   +3 more
doaj   +1 more source

Parameterizing Convective Organization Effects With a Moisture‐PDF Approach in Climate Models: Concept and a Regional Case Simulation

Journal of Advances in Modeling Earth Systems, 2022
We propose a parameterization scheme of convective organization effects based on a moisture‐distribution approach, which can reflect aggregation of convective cells within a model grid as well as the interaction between convection and spatial ...
Ben Yang, Minghuai Wang, Guang J. Zhang, Zhun Guo, Yong Wang, Xin Xu, Guoqing Dai, Anning Huang, Yaocun Zhang, Yun Qian   +9 more
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

Lightning NO₂ simulation over the contiguous US and its effects on satellite NO₂ retrievals [PDF]

Atmospheric Chemistry and Physics, 2019
Lightning is an important NOx source representing ∼10 % of the global source of odd N and a much larger percentage in the upper troposphere. The poor understanding of spatial and temporal patterns of lightning contributes to a large uncertainty in
Q. Zhu, J. L. Laughner, J. L. Laughner, R. C. Cohen, R. C. Cohen   +4 more
doaj   +1 more source

Bells and whistles of convection parameterization [PDF]

Bulletin of the American Meteorological Society, 2013
The present workshop constitutes the 5th in the annual series on “Concepts for Convective Parameterizations in Large-Scale Models”. The purpose of the workshop series has been to discuss the fundamental theoretical issues of convection parameterization with a small number of European scientists.
Yano, J.-I., Machulskaya, E., Bechtold, P., Plant, R. S., Meteo France, ECMWF   +5 more
openaire   +3 more sources

Quantifying the limits of convective parameterizations [PDF]

Journal of Geophysical Research, 2011
[1] Quasi-equilibrium (QE) closure is an approximation that is expected to apply to a large ensemble of clouds under slowly changing weather conditions. It breaks down under rapidly changing conditions or when the domain size is too small to provide an adequate sample of the cloud field.
Todd R. Jones, David A. Randall
openaire   +1 more source