CMEM (
Copyright © ECMWF) is a Fortran90 software package. It has been tested with pgf90, gfortran and ifc fortran compilers. It includes 47 subroutines and 9880 lines2006-2020 ECMWF.
This software is licensed under the terms of the Apache License Version 2.0
which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
In applying this license, ECMWF does not waive the privileges and immunities granted to it by
virtue of its status as an intergovernmental organization nor does it submit to any jurisdiction.
Download CMEM:
When you download CMEM, please keep us informed, by sending us an e-mail (see contact). You will then be added to the CMEM users diffusion list and we will keep you informed of any modifications, bug reports and new version of the code.
Current version (10 May 2012):
Download CMEM version 4.1 (Patches for cmem_soil.F90 and cmem_init.F90)
Characteristics of this new tag and difference with previous version.
Bug report on cmem v4.1 (2 reported bugs)
Patch cmem v4.1 to enable multi-layer (Wilheit) with netcdf and grib api IO
cmem_v6.1.tar.gz CMEM version 6.1 (released May 2020)
Old version
cmem_v6.0.tar.gz : CMEM version 6.0 (released January 2020)
cmem_v5.1.tar.gz : CMEM version 5.1 (Developed 2014-2015, released July 2015)
To get previous To get grevious versions please contact ECMWF (see CMEM contact page).
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Test data
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CMEM Input/Output are coded in a modular way, so that the user can choose either ASCII, GRIB or NETCDF I/O format. For any of these I/O type, CMEM is flexible with automatic detection of the Input files sizes. See the description the description of CMEM I/O and Modelling Platform decriptioninput/output .
A test data set for CMEM v.6.0 is provided, including input/Output in the three formats (grib, acsii, netcdf). It is compatible since cmem 1.3. Output files are obtained with CMEM v4.0.
Note that for grib input/output you can use either GRIB API encoding ('gribapi' option, which is the default in cmem v2.1) or GRIBEX encoding ('gribex' option which was the default option until cmem_v1.3, named 'grib' at this stage).
Frequently Asked Questions
CMEM Users
| Name | Institute | Country |
| Mahdi Allahmoradi | Department of Civil and Environmental Engineering The University of Melbourne | Australia |
| Anais Barella Ortis | Laboratoire de Météorologie Dynamique | Paris |
| Simone Bircher | Technical University of Denmark | Denmark |
| Jean-Christophe Calvet | CNRM/Météo-France | France |
| Marco Carrera | Environment Canada | Canada |
| Chasmita Chaurasia | Space Applications Centre ISRO | India |
| Gabrielle De Lannoy | NASA GSFC | USA |
| Thomas Holmes | USDA | US |
| Binghao Jia | LASG, Institute of Atmospheric Physics # Chinese Academy of Sciences, Beijing | China |
| Thomas Kaminski | FastOpt | Hamburg, Germany |
| Yann Kerr | Centre d'Etudes Spatiales de la BIOsphère (CESBIO) | France |
| Seungbum Kim | NASA GSFC | USA |
| Chen Liang | Institute of Remote Sensing | China |
| Hans Lievens | Laboratory of Hydrology and Water Management | Belgium |
| Alexander Löw | University of Munich (LMU) | Germany |
| Qifeng Lu | National Satellite Meteorological Center, China Meteorological Adminstration | China |
| Chunfeng Ma | Laboratory of Remote Sensing and Geospatial Science; Chinese Academy of Sciences | China |
| Wojciech Marczewski | Space Research Center PAS, Warsaw | Poland |
| Maheshwari Neelam | Texas AM University | USA |
| Valentijn Pauwels | Laboratory of Hydrology and Water Management | Belgium |
| Jan Polcher | LMD/CNRS, currently at Institut Català de Ciències del Clima (IC3) | Spain |
| Jayesh P. Pabari | Physical Research Laboratory | India |
| Yubao Qiu | Center for Earth Observation and Digital Earth Chinese Academy of Sciences | China |
| Luigi Renzullo | CSIRO Land and Water | Australia |
| Sandra Slowinska | Institute of Technology and Life Sciences, Bydgoszcz | Poland |
| Ewa Slowinska | Space Research Center PAS, Warsaw | Poland |
| Jan Slowinski | Space Research Center PAS, Warsaw | Poland |
| Z. (Bob) Su | International Institute for Geo-Information Science and Earth Observation (ITC) | The Netherlands |
| Yudong Tian | NASA GSFC | USA |
| Han Xujun | Laboratory of Remote Sensing and Geospatial Science; Chinese Academy of Sciences | China |
| Eric Wood | Princeton University | USA |
| Long Zhao | Institute of Tibetan Plateau Research, Chinese Academy of Sciences | China |
If you are CMEM users and are not in this list just let us know by email so that the CMEM's users list will be updated.
Citing CMEM
CMEM is an ECMWF copyrighted code (Copyright © ECMWF)
We request that you acknowledge the use of CMEM in any publication or report using CMEM. Please refer to one of the citations below. You can also refer to the web page for further information.
We also request that you send us one reprint of any publication that cites the use of CMEM. This helps us to determine the level of use and range of applications of the model we distribute. Thank you.
Holmes, T., M. Drusch, J.-P. Wigneron, S. Lafont, and R. de Jeu, 2008: A global simulation of microwave emission: Error structures based on output from ECMWF's operational Integrated Forecast System, Vol 46(3), pp 846-856 SMOS special issue IEEE Trans. Geosc. Rem. Sens.
Drusch, M., T. Holmes, P. de Rosnay and G. Balsamo, 2009: Comparing ERA-40 based L-band brightness temperatures with Skylab observations: A calibration / validation study using the Community Microwave Emission Model, Vol 10, DOI: 10.1175/2008JHM964.1, J. Hydromet.
de Rosnay P., M. Drusch, A. Boone, G. Balsamo, B. Decharme, P. Harris, Y. Kerr, T. Pellarin, J. Polcher and J.-P. Wigneron, "The AMMA Land Surface Model Intercomparison Experiment coupled to the Community Microwave Emission Model: ALMIP-MEM", J. Geophys. Res., Vol 114, doi:10.1029/2008JD010724, 2009
io_sample_v6.1.tar.gz :Test data for CMEM version 6.1 (May 2020)
CMEMCommunity Microwave Emission Modelling Platform (CMEM): http://www.ecmwf.int/research/data_assimilation/land_surface/cmem/cmem_index.html