scholarly journals Evaluating Cooling Tower Scheme and Mechanical Drag Coefficient Formulation in High-Resolution Regional Model

2019 ◽  
Author(s):  
Miao Yu ◽  
Shiguang Miao
Keyword(s):  
High Resolution ◽  
Drag Coefficient ◽  
Cooling Tower ◽  
Regional Model

Climate Evaluation of a High-Resolution Regional Model over the Canary Current Upwelling System

2019 ◽  
pp. 240-252
Author(s):  
Ruben Vazquez ◽  
Ivan Parras-Berrocal ◽  
William Cabos ◽  
Dmitry V. Sein ◽  
Rafael Mañanes ◽  
...  
Keyword(s):  
High Resolution ◽  
Regional Model ◽  
Upwelling System

scholarly journals Quantifying pollution inflow and outflow over East Asia in spring with regional and global models

2010 ◽  
Vol 10 (9) ◽  
pp. 4221-4239 ◽  
Author(s):  
M. Lin ◽  
T. Holloway ◽  
G. R. Carmichael ◽  
A. M. Fiore
Keyword(s):  
Boundary Layer ◽  
Air Pollution ◽  
High Resolution ◽  
Boundary Conditions ◽  
East Asia ◽  
Large Scale ◽  
Regional Model ◽  
Global Model ◽  
Global Models ◽  
High Resolution Models

Abstract. Understanding the exchange processes between the atmospheric boundary layer and the free troposphere is crucial for estimating hemispheric transport of air pollution. Most studies of hemispheric air pollution transport have taken a large-scale perspective using global chemical transport models with fairly coarse spatial and temporal resolutions. In support of United Nations Task Force on Hemispheric Transport of Air Pollution (TF HTAP; www.htap.org), this study employs two high-resolution atmospheric chemistry models (WRF-Chem and CMAQ; 36×36 km) driven with chemical boundary conditions from a global model (MOZART; 1.9×1.9°) to examine the role of fine-scale transport and chemistry processes in controlling pollution export and import over the Asian continent in spring (March 2001). Our analysis indicates the importance of rapid venting through deep convection that develops along the leading edge of frontal system convergence bands, which are not adequately resolved in either of two global models compared with TRACE-P aircraft observations during a frontal event. Both regional model simulations and observations show that frontal outflows of CO, O3 and PAN can extend to the upper troposphere (6–9 km). Pollution plumes in the global MOZART model are typically diluted and insufficiently lofted to higher altitudes where they can undergo more efficient transport in stronger winds. We use sensitivity simulations that perturb chemical boundary conditions in the CMAQ regional model to estimate that the O3 production over East Asia (EA) driven by PAN decomposition contributes 20% of the spatial averaged total O3 response to European (EU) emission perturbations in March, and occasionally contributes approximately 50% of the total O3 response in subsiding plumes at mountain observatories (at approximately 2 km altitude). The response to decomposing PAN of EU origin is strongly affected by the O3 formation chemical regimes, which vary with the model chemical mechanism and NOx/VOC emissions. Our high-resolution models demonstrate a large spatial variability (by up to a factor of 6) in the response of local O3 to 20% reductions in EU anthropogenic O3 precursor emissions. The response in the highly populated Asian megacities is 40–50% lower in our high-resolution models than the global model, suggesting that the source-receptor relationships inferred from the global coarse-resolution models likely overestimate health impacts associated with intercontinental O3 transport. Our results highlight the important roles of rapid convective transport, orographic forcing, urban photochemistry and heterogeneous boundary layer processes in controlling intercontinental transport; these processes may not be well resolved in the large-scale models.

scholarly journals Mesoscale precipitation characteristics near the Western Ghats during the Indian Summer Monsoon as simulated by a high-resolution regional model

2017 ◽  
Vol 143 (709) ◽  
pp. 3070-3084 ◽  
Author(s):  
Wendilyn J. Flynn ◽  
Stephen W. Nesbitt ◽  
Alison M. Anders ◽  
Piyush Garg
Keyword(s):  
High Resolution ◽  
Summer Monsoon ◽  
Indian Summer Monsoon ◽  
Western Ghats ◽  
Regional Model ◽  
Precipitation Characteristics ◽  
The Western Ghats

scholarly journals Numerical simulation of monsoon depressions over India with a high-resolution nested regional model

2000 ◽  
Vol 7 (1) ◽  
pp. 45-60 ◽  
Author(s):  
K V J Potty ◽  
U C Mohanty ◽  
S Raman
Keyword(s):  
Numerical Simulation ◽  
High Resolution ◽  
Regional Model ◽  
Monsoon Depressions

scholarly journals Enhancing the Accessibility of Unified Modeling Systems: GFDL SHiELD v2021b in a Container

2021 ◽  
Author(s):  
Kai-Yuan Cheng ◽  
Lucas M. Harris ◽  
Yong Qiang Sun
Keyword(s):  
High Resolution ◽  
Model Development ◽  
Seasonal Prediction ◽  
Atmospheric Model ◽  
Regional Model ◽  
Easy Access ◽  
Unified Modeling ◽  
Modeling Systems ◽  
Cross Platform ◽  
Study Performance

Abstract. Container technology provides a pathway to facilitate easy access to unified modeling systems and opens opportunities for collaborative model development and interactive learning. In this paper, we present the implementation of software containers for the System for High‐resolution prediction on Earth‐to‐Local Domains (SHiELD), a unified atmospheric model for weather-to-seasonal prediction. The containerized SHiELD is cross-platform and easy to install. Flexibility of the containerized SHiELD is demonstrated as it can be configured as a global, a global-nest, and a regional model. Bitwise reproducibility is achieved on various x86 systems tested in this study. Performance and scalability of the containerized SHiELD are evaluated and discussed.

High Resolution Climate Modelling with the CCLM Regional Model for Europe and Africa

2014 ◽  
pp. 561-574 ◽  
Author(s):  
H.-J. Panitz ◽  
G. Schädler ◽  
M. Breil ◽  
S. Mieruch ◽  
H. Feldmann ◽  
...  
Keyword(s):  
High Resolution ◽  
Regional Model ◽  
Climate Modelling

scholarly journals Modeling Air–Land–Sea Interactions Using the Integrated Regional Model System in Monterey Bay, California

2012 ◽  
Vol 140 (4) ◽  
pp. 1285-1306 ◽  
Author(s):  
Yu-Heng Tseng ◽  
Shou-Hung Chien ◽  
Jiming Jin ◽  
Norman L. Miller
Keyword(s):  
High Resolution ◽  
General Circulation ◽  
Coastal Upwelling ◽  
General Circulation Models ◽  
Regional Model ◽  
Ocean Model ◽  
Model System ◽  
Ocean Dynamics ◽  
Monterey Bay ◽  
Community Land Model

The air–land–sea interaction in the vicinity of Monterey Bay, California, is simulated and investigated using a new Integrated Regional Model System (I-RMS). This new model realistically resolves coastal processes and submesoscale features that are poorly represented in atmosphere–ocean general circulation models where systematic biases are seen in the long-term model integration. The current I-RMS integrates version 3.1 of the Weather Research and Forecasting Model and version 3.0 of the Community Land Model with an advanced coastal ocean model, based on the nonhydrostatic Monterey Bay Area Regional Ocean Model. The daily land–sea-breeze circulations and the Santa Cruz eddy are fully resolved using high-resolution grids in the coastal margin. In the ocean, coastal upwelling and submesoscale gyres are also well simulated with this version of the coupled I-RMS. Comparison with observations indicates that the high-resolution, improved representation of ocean dynamics in the I-RMS increases the surface moisture flux and the resulting lower-atmospheric water vapor, a primary controlling mechanism for the enhancement of regional coastal fog formation, particularly along the West Coast of the conterminous United States. The I-RMS results show the importance of detailed ocean feedbacks due to coastal upwelling in the marine atmospheric boundary layer.

scholarly journals Test and analysis of high resolution regional model precipitation forecast based on wavelet

2019 ◽  
Vol 351 ◽  
pp. 012037
Author(s):  
H Gao ◽  
S Y Fan ◽  
Z F Zheng ◽  
H L Zhang
Keyword(s):  
High Resolution ◽  
Regional Model ◽  
Precipitation Forecast ◽  
Model Precipitation

scholarly journals Prediction of precipitation associated with a western disturbance using a high-resolution regional model: role of parameterisation of physical processes

2002 ◽  
Vol 9 (3) ◽  
pp. 317-326 ◽  
Author(s):  
M Azadi ◽  
U C Mohanty ◽  
O P Madan ◽  
B Padmanabhamurty
Keyword(s):  
High Resolution ◽  
Regional Model ◽  
Physical Processes ◽  
Western Disturbance
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