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The Met Office Unified Model Global Atmosphere 6.0/6.1 and JULES Global Land 6.0/6.1 configurations

David Walters, Ian Boutle, Malcolm Brooks, Thomas Melvin, Rachel Stratton, Simon Vosper, Helen Wells, Keith Williams, Nigel Wood, Thomas Allen, Andrew Bushell, Dan Copsey (+26 others)
2017 Geoscientific Model Development  
</strong> We describe Global Atmosphere 6.0 and Global Land 6.0 (GA6.0/GL6.0): the latest science configurations of the Met Office Unified Model and JULES (Joint UK Land Environment Simulator) land surface  ...  Global Atmosphere 6.0 includes the ENDGame (Even Newer Dynamics for General atmospheric modelling of the environment) dynamical core, which significantly increases mid-latitude variability improving a  ...  of improving the accuracy, scalability and stability of the model.  ... 
doi:10.5194/gmd-10-1487-2017 fatcat:hbzuhaxwnzgtpkskf3x6elvtvy

The Met Office Unified Model Global Atmosphere 6.0/6.1 and JULES Global Land 6.0/6.1 configurations

David Walters, Malcolm Brooks, Ian Boutle, Thomas Melvin, Rachel Stratton, Simon Vosper, Helen Wells, Keith Williams, Nigel Wood, Thomas Allen, Andrew Bushell, Dan Copsey (+26 others)
2016 Geoscientific Model Development Discussions  
We describe Global Atmosphere 6.0 and Global Land 6.0: the latest science configurations of the Met Office Unified Model and JULES land surface model developed for use across all timescales.  ...  <br><br> We also describe Global Atmosphere 6.1 and Global Land 6.1, which include a small number of long-standing differences from our main trunk configurations that we continue to require for operational  ...  of improving the accuracy, scalability and stability of the model.  ... 
doi:10.5194/gmd-2016-194 fatcat:p3efnmx6hfgjblqsmerbgyvac4

Physics–Dynamics Coupling in weather, climate and Earth system models: Challenges and recent progress

Markus Gross, Hui Wan, Philip J. Rasch, Peter M. Caldwell, David L. Williamson, Daniel Klocke, Christiane Jablonowski, Diana R. Thatcher, Nigel Wood, Mike Cullen, Bob Beare, Martin Willett (+10 others)
2018 Monthly Weather Review  
In this paper weather and climate models are used to illustrate the problems. Nevertheless the same applies to other geophysical models. This coupling is an important aspect of geophysical models.  ...  These represent two distinct areas: Subgrid processes that the model cannot resolve, and diabatic sources in the equations, due to radiation for example.  ...  The authors thank the small army of anonymous referees and editors, in particular Prof. David M.  ... 
doi:10.1175/mwr-d-17-0345.1 fatcat:dfnrwelspvg5dpr7uu5e7jpmqu

High-Resolution Multi-decadal Simulation of Tropical Cyclones [chapter]

Michael F. Wehner, Kevin A. Reed, Colin M. Zarzycki
2017 Hurricanes and Climate Change  
These global atmospheric models, with horizontal resolutions in the 10-50 km range, simulate strong gradients in temperature and moisture far more realistically than contemporary mainstream climate models  ...  With these models, simulated tropical cyclones exhibit a surprising degree of realism in terms of both the physical characteristics of individual storms and their long-term statistical behavior.  ...  Acknowledgements This work was partially supported by the Regional and Global Climate  ... 
doi:10.1007/978-3-319-47594-3_8 fatcat:4674kc52ljd43p2ds7eecixmzi

The COSMO-CLM 4.8 regional climate model coupled to regional ocean, land surface and global earth system models using OASIS3-MCT: description and performance

Andreas Will, Naveed Akhtar, Jennifer Brauch, Marcus Breil, Edouard Davin, Ha T. M. Ho-Hagemann, Eric Maisonnave, Markus Thürkow, Stefan Weiher
2017 Geoscientific Model Development  
</strong> We developed a coupled regional climate system model based on the CCLM regional climate model.  ...  <br><br>We first present the different model components and the unified OASIS3-MCT interface which handles all couplings in a consistent way, minimising the model source code modifications and defining  ...  Sophie Valcke (CERFACS) provided the OASIS3-MCT support necessary to solve the problems of coupling with a regional model.  ... 
doi:10.5194/gmd-10-1549-2017 fatcat:szroammf6ncgnkifctwn5k56re

Vorticity-divergence semi-Lagrangian global atmospheric model SL-AV20: dynamical core

Mikhail Tolstykh, Vladimir Shashkin, Rostislav Fadeev, Gordey Goyman
2017 Geoscientific Model Development  
The lower-resolution configurations of SL-AV20 are being tested for seasonal prediction and climate modeling. <br><br> The article presents the model dynamical core.  ...  Accuracy and stability of SL-AV20 in the presence of the orography forcing are tested using the mountain-induced Rossby wave test case.  ...  The research has been carried out at the Institute of Numerical Mathematics of the Russian Academy of Sciences and funded by the Russian Science Foundation (grant no. 14-27-00126).  ... 
doi:10.5194/gmd-10-1961-2017 fatcat:vke7ibywwvdatoy6h6cbeel2ae

Coupling of the regional climate model COSMO-CLM using OASIS3-MCT with regional ocean, land surface or global atmosphere model: description and performance

Stefan Weiher, Naveed Akhtar, Jennifer Brauch, Marcus Breil, Edouard Davin, Ha T. M. Ho-Hagemann, Eric Maisonnave, Markus Thürkow, Andreas Will
2016 Geoscientific Model Development Discussions  
We present the prototype of a regional climate system model based on the COSMO-CLM regional climate model coupled with several model components, analyze the performance of the couplings and present a strategy  ...  We present a unified OASIS3-MCT interface which handles all couplings in a similar way, minimizes the model source code modifications and describes the physics and numerics of the couplings.  ...  Chapter 4 gives examples of this operation and describes the strategy to find a compromize between each component's optimum scalability and the load balance between all components.  ... 
doi:10.5194/gmd-2016-47 fatcat:dc3pgxwxebdzhdqe2grgs3qjb4

Porting Multiscale Fluid Model EULAG to Modern Heterogeneous Architectures

Bogdan Rosa, Miłosz Ciżnicki, Krzysztof A. Rojek, Damian K. Wójcik, Piotr K. Smolarkiewicz, Roman Wyrzykowski
2014 International Journal of Applied Physics and Mathematics  
The EULAG model has a proven record of successful applications in a range of environmental fluid dynamics, and excellent efficiency and scalability on conventional supercomputer architectures.  ...  The EULAG code combines features of a stencil and point wise computations. Its communication scheme consists of both halo exchange subroutines and global reduction functions.  ...  Piotrowski (IMWM-NRI) and Łukasz G. Szustak (CzUT) for their scientific programming, valuable comments and suggestions.  ... 
doi:10.7763/ijapm.2014.v4.281 fatcat:bmntra5xkzhbvml5qvfwfxrqbu

Vorticity-Divergence semi-Lagrangian Global Atmospheric Model SL-AV20: Dynamical Core

Mikhail Tolstykh, Vladimir Shashkin, Rostislav Fadeev, Gordey Goyman
2016 Geoscientific Model Development Discussions  
SL-AV (Semi-Lagranginan Absolute Vorticity) is a global atmospheric model.  ...  The lower resolution configurations of SL-AV20 are being tested for seasonal prediction and climate modeling. <br><br> The article presents the model dynamical core.  ...  The data transpositions before and after the solution of elliptical problems require global communications between the processors and is a future scalability bottleneck, so we work on scalable iterative  ... 
doi:10.5194/gmd-2016-265 fatcat:cduuy3kzwfbqteyc4vse7yvsby

Developments in the MPI-M Earth System Model version 1.2 (MPI-ESM 1.2) and its response to increasing CO2

Thorsten Mauritsen, Jürgen Bader, Tobias Becker, Jörg Behrens, Matthias Bittner, Renate Brokopf, Victor Brovkin, Martin Claussen, Traute Crueger, Monika Esch, Irina Fast, Stephanie Fiedler (+57 others)
2019 Journal of Advances in Modeling Earth Systems  
As a result, the model has a climate sensitivity to a doubling of CO2 over preindustrial conditions of 2.77 K, maintaining the previously identified highly nonlinear global mean response to increasing  ...  To this end, a very high climate sensitivity of around 7 K caused by low-level clouds in the tropics as found in an intermediate model version was addressed, as it was not deemed possible to match observed  ...  The primary data for this study, that is, the source code for MPI-ESM1.2 and its components, is available on https://www.mpimet.mpg.de-/en/ science/models/mpi-esm/, and output from a large number of experiments  ... 
doi:10.1029/2018ms001400 pmid:32742553 pmcid:PMC7386935 fatcat:dvefc2ubr5a45lm2b7reuwzogu

Design and implementation of the infrastructure of HadGEM3: the next-generation Met Office climate modelling system

H. T. Hewitt, D. Copsey, I. D. Culverwell, C. M. Harris, R. S. R. Hill, A. B. Keen, A. J. McLaren, E. C. Hunke
2011 Geoscientific Model Development  
Details of the coupling and technical solutions of the physical model (HadGEM3-AO) are documented, in addition to a description of the configurations of the individual submodels.  ...  This paper describes the development of a technically robust climate modelling system, HadGEM3, which couples the Met Office Unified Model atmosphere component, the NEMO ocean model and the Los Alamos  ...  of OASIS use; and Jonathan Gregory for his help in extending the tripolar boundary condition in CICE and discussions surrounding CF-compliance of NEMO output.  ... 
doi:10.5194/gmd-4-223-2011 fatcat:hnk5hze7ovgf5cv46efrfa52yq

A Review of Element-Based Galerkin Methods for Numerical Weather Prediction: Finite Elements, Spectral Elements, and Discontinuous Galerkin

Simone Marras, James F. Kelly, Margarida Moragues, Andreas Müller, Michal A. Kopera, Mariano Vázquez, Francis X. Giraldo, Guillaume Houzeaux, Oriol Jorba
2015 Archives of Computational Methods in Engineering  
As resolutions increase, global models are moving towards fully nonhydrostatic dynamical cores, with the local and global models using the same governing equations; therefore we have reached a point where  ...  Numerical Weather Prediction (NWP) is in a period of transition.  ...  For this reason, the HPE form the basis of most global atmospheric and climate models.  ... 
doi:10.1007/s11831-015-9152-1 fatcat:tmjzwcxorfgt5fdcrlf6kb24ny

Description Of Downscaling Methodologies

Roberto Aurelio Chávez Arroyo, Javier Sanz Rodrigo, Andreas Bechmann, Matias Avila, Herbert Owen, Chi-Yao Chang, Arnaud Candaele
2016 Zenodo  
This report deals with microscale models, typically implemented on computational fluid dynamic (CFD) solvers. A list of the participating models in NEWA is provided in the Annex.  ...  This initial report provides a review of existing downscaling methodologies applied in the context of wind energy applications.  ...  are available: a standard uniform loaded disk and an enhanced model with non-uniform loading and rotation after Wu and Porté-Agel (2011) .  ... 
doi:10.5281/zenodo.1194733 fatcat:s2uhohpe5reurerjneav6gvgq4

Batch 1: Definition of several Weather Climate Dwarfs [article]

Gianmarco Mengaldo
2019 arXiv   pre-print
advection scheme and a first version of the semi-Lagrangian advection scheme itself.  ...  This deliverable contains the description of the characteristics of the weather & climate dwarfs that form key functional components of prediction models in terms of the science that they encapsulate and  ...  In particular, this dwarf can be integrated in a global Weather & Climate model involving a semi-implicit time-stepping scheme and a mesh-based spatial discretization.  ... 
arXiv:1908.06089v1 fatcat:scqatp5s3vcg7bbx72zgat4m4u

The DOE E3SM coupled model version 1: Description and results at high resolution}

Peter M. Caldwell, Azamat Mametjanov, Qi Tang, Luke P. Van Roekel, Jean‐Christophe Golaz, Wuyin Lin, David C. Bader, Noel D. Keen, Yan Feng, Robert Jacob, Mathew E. Maltrud, Andrew F. Roberts (+21 others)
2019 Journal of Advances in Modeling Earth Systems  
Atmospheric blocking in a high resolution climate model: influences of mean state, orography and eddy forcing.  ...  Storm track response to ocean fronts in a global high-resolution climate model.  ... 
doi:10.1029/2019ms001870 fatcat:eawqe5fni5eb3evf6kkhof3bcq
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