Results 11 to 20 of about 760 (262)

Diagnostic evaluation of extreme winter rainfall events over the Arabian Peninsula using high‐resolution weather research and forecasting simulations

Meteorological Applications, 2022
The sensitivity of different cumulus physical parameterization schemes for simulating extreme winter precipitation events over the Arabian Peninsula (AP) is investigated using a high‐resolution weather research and forecasting (WRF) model. For winters in
Raju Attada, Hari Prasad Dasari, Rabih Ghostine, Niranjan Kumar Kondapalli, Ravi Kumar Kunchala, Thang M. Luong, Ibrahim Hoteit   +6 more
doaj   +1 more source

A new approach to the cumulus parameterization issue [PDF]

Tellus A: Dynamic Meteorology and Oceanography, 2003
Can the superensemble methodology provide improved precipitation forecasts by combining existing physical parameterizations? We recently addressed this question in the context of Numerical Weather Prediction (NWP). We feel, however, that the information provided here may be useful for seasonal climate modeling as well.
T. N. Krishnamurti, J. Sanjay
openaire   +1 more source

Impact of Interactive Vertical Overlap of Cumulus and Stratus on Global Aerosol, Precipitation, and Radiation Processes in the Seoul National University Atmosphere Model Version 0 With a Unified Convection Scheme (SAM0‐UNICON)

Journal of Advances in Modeling Earth Systems, 2019
The previously proposed parameterization for the integrated vertical overlap of cumulus and stratus is generalized to handle both conventional exponential‐random stratus overlap and nonconventional (i.e., other than exponential‐random) cumulus overlap in
Sungsu Park, Eunsil Oh, Siyun Kim, Jihoon Shin   +3 more
doaj   +1 more source

Numerical Simulations of the South American Low Level Jet in Two Episodes of MCSs: Sensitivity to PBL and Convective Parameterization Schemes

Advances in Meteorology, 2016
The sensitivity of numerical simulations of the low level jet stream (LLJS) in South America to the choice of parameterization schemes for the planetary boundary layer (PBL) and for cumulus convection using the Advanced Research core of the Weather ...
Daniel Caetano Santos, Ernani de Lima Nascimento   +1 more
doaj   +1 more source

Evaluation of Optimized WRF Precipitation Forecast over a Complex Topography Region during Flood Season

Atmosphere, 2016
In recent years, the Weather Research and Forecast (WRF) model has been utilized to generate quantitative precipitation forecasts with higher spatial and temporal resolutions.
Yuan Li, Guihua Lu, Zhiyong Wu, Hai He, Jun Shi, Yuexiong Ma, Shichuang Weng   +6 more
doaj   +1 more source

Convective Quasi-Equilibrium Reconsidered

Journal of Advances in Modeling Earth Systems, 2011
The hypothesis of convective quasi-equilibrium states that moist convection reacts almost instantly to drive the atmospheric temperature profile throughout the troposphere to one of a special subset of possible profiles.
David J Raymond, Michael J Herman
doaj   +1 more source

Multi‐Grid Nesting Ability to Represent Convections Across the Gray Zone

Journal of Advances in Modeling Earth Systems, 2019
This study investigated the multi‐grid nesting ability of a limited area model to effectively represent convections across the gray zone, the resolution around 1–10 km where both cumulus parameterization and explicit convection are problematic.
Xin‐Zhong Liang, Qi Li, Haixia Mei, Mingjian Zeng   +3 more
doaj   +1 more source

Model Sensitive in Numerical of the Formation of Typhoon Robyn (1993)

Terrestrial, Atmospheric and Oceanic Sciences, 2006
The PSU-NCAR mesoscale model MM5 with an 81-km (27-km) resolution coarse (fine) grid is used to simulate the formation of Typhoon Robyn (1993) in the western North Pacific. This study examines the roles of mesoscale convective system (MCS) during Robyn’s
Kevin K. W. Cheung Russell L. Elsberry
doaj   +1 more source

Parameterizing deep convection using the assumed probability density function method [PDF]

Geoscientific Model Development, 2015
Due to their coarse horizontal resolution, present-day climate models must parameterize deep convection. This paper presents single-column simulations of deep convection using a probability density function (PDF) parameterization.
R. L. Storer, B. M. Griffin, J. Höft, J. K. Weber, E. Raut, V. E. Larson, M. Wang, P. J. Rasch   +7 more
doaj   +1 more source

Sensitivity of Tropical Cyclone Idai Simulations to Cumulus Parametrization Schemes

Atmosphere, 2021
Weather simulations are sensitive to subgrid processes that are parameterized in numerical weather prediction (NWP) models. In this study, we investigated the response of tropical cyclone Idai simulations to different cumulus parameterization schemes ...
Mary-Jane M. Bopape, Hipolito Cardoso, Robert S. Plant, Elelwani Phaduli, Hector Chikoore, Thando Ndarana, Lino Khalau, Edward Rakate   +7 more
doaj   +1 more source