CESM2 Community Land Model
View the CTSM 2020 Fall Newsletter to learn about updates for CTSM users & developers
Introduction
The Community Land Model is the land model for the Community Earth System Model (CESM).
It is a collaborative project between scientists in the Terrestrial Sciences Section (TSS) and the Climate and Global Dynamics Division (CGD) at the National Center for Atmospheric Research (NCAR) and the CESM Land Model and Biogeochemistry Working Groups. Other principal working groups that contribute to the CLM are the Chemistry-Climate, Paleoclimate, Climate Change, and Land Ice Working Groups
CLM5
CLM5.0 is the latest in a series of land models developed through the CESM project. More information on the CLM project and access to previous released CLM model versions and documentation can be found via the CLM Web Page. Note that CLM4.5 biogeophysics and biogeochemistry can be run from this release code. A new river model (MOSART) is also included.
The Functionally Assembled Terrestrial Ecosystem Simulator (FATES) is available within the CLM5 release as a research option.
Access
- CLM5.0 is publicly available through the Community Terrestrial System Model (CTSM) git repository
- Instructions for downloading the code can be found at the CLM wiki page
https://github.com/ESCOMP/CTSM/wiki
Documentation
- CLM5.0 Technical Description [HTML] [PDF]
- What's new in CLM5.0 Description [Text] [Image]
- CLM5.0 User's Guide
- CESM2 Latest Release Quickstart Guide
- CESM2.1 Quickstart Guide
- CIME documentation *CIME, pronounced "SEAM", is the Common Infrastructure for Modeling the Earth provides a UNIX command-line-based interface for configuring, compiling and executing Earth system models including CLM
- CLM namelist definitions
- CLM CASEROOT variable definitions
- MOSART namelist definitions
- CLM github issues page
- Major bugs/issues in CLM5
- Explanation of supported configurations in CLM5
- Getting Help - DiscussCESM Forums
Previous Versions
Model Design and Development
All future CLM development will occur within the framework of CTSM. CLM will be an instantiation of CTSM.
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Development Guide
CTSM development guidelines, workflow, and coding standards provided at CTSM github wiki page
Model output, diagnostic plots, and observations
- CLM5.0, CLM4.5, and CLM4.0 land-only control simulations are published on the Earth System Grid at:
CLM Simulations on the ESG (http://doi.org/10.5065/d6154fwh)
*PFT-level, daily, and hourly data available for selected fields and simulations - CLM Diagnostic package plots
- CESM2 ScenarioMIP Land Diagnostics
- ILAMB package plots
- Observational datasets used in ILAMB can be found on cheyenne at /glade/p/cesm/lmwg/diag/ILAMB/DATA, and on CGD systems at /project/mojave/obs/ILAMB
- CESM Postprocessing Tool: Quick Start, User's Guide, and Workflow
References
Bibliography of papers utilizing and/or developing CLM - ALL * Last update: [an error occurred while processing this directive]
Bibliography of papers utilizing and/or developing CLM - 2022 * Last update: [an error occurred while processing this directive]
CLM5
David M. Lawrence, Rosie A. Fisher, Charles D. Koven, Keith W. Oleson, Sean C. Swenson, Gordon Bonan, Nathan Collier, Bardan Ghimire, Leo van Kampenhout, Daniel Kennedy, Erik Kluzek, Peter J. Lawrence, Fang Li, Hongyi Li, Danica Lombardozzi, William J. Riley, William J. Sacks, Mingjie Shi, Mariana Vertenstein, William R. Wieder, Chonggang Xu, Ashehad A. Ali, Andrew M. Badger, Gautam Bisht, Michiel van den Broeke, Michael A. Brunke, Sean P. Burns, Jonathan Buzan, Martyn Clark, Anthony Craig, Kyla Dahlin, Beth Drewniak, Joshua B. Fisher, Mark Flanner, Andrew M. Fox, Pierre Gentine, Forrest Hoffman, Gretchen Keppel-Aleks, Ryan Knox, Sanjiv Kumar, Jan Lenaerts, L. Ruby Leung, William H. Lipscomb, Yaqiong Lu, Ashutosh Pandey, Jon D. Pelletier, Justin Perket, James T. Randerson, Daniel M. Ricciuto, Benjamin M. Sanderson, Andrew Slater, Zachary M. Subin, Jinyun Tang, R. Quinn Thomas, Maria Val Martin, Xubin Zeng, 2019: The Community Land Model version 5: Description of new features, benchmarking, and impact of forcing uncertainty. Journal of Advances in Modeling Earth Systems, 11, 4245-4287. https://doi-org.cuucar.idm.oclc.org/10.1029/2018MS001583.
CLM4.5
Oleson, K.W., D.M. Lawrence, G.B. Bonan, B. Drewniak, M. Huang, C.D. Koven, S. Levis, F. Li, W.J. Riley, Z.M. Subin, S.C. Swenson, P.E. Thornton, A. Bozbiyik, R. Fisher, E. Kluzek, J.-F. Lamarque, P.J. Lawrence, L.R. Leung, W. Lipscomb, S. Muszala, D.M. Ricciuto, W. Sacks, Y. Sun, J. Tang, Z.-L. Yang, 2013: Technical Description of version 4.5 of the Community Land Model (CLM). Ncar Technical Note NCAR/TN-503+STR, National Center for Atmospheric Research, Boulder, CO, 422 pp
CLM4
Lawrence, D.M., K.W. Oleson, M.G. Flanner, P.E. Thornton, S.C. Swenson, P.J. Lawrence, X. Zeng, Z.-L. Yang, S. Levis, K. Sakaguchi, G.B. Bonan, and A.G. Slater, 2011: Parameterization improvements and functional and structural advances in version 4 of the Community Land Model. J. Adv. Model. Earth Sys., 3, Doi: 10.1029/2011MS000045
Oleson, K.W., D.M. Lawrence, G.B. Bonan, M.G. Flanner, E. Kluzek, P.J. Lawrence, S. Levis, S.C. Swenson, P.E. Thornton, A. Dai, M. Decker, R. Dickinson, J. Feddema, C.L. Heald, F. Hoffman, J.-F. Lamarque, N. Mahowald, G.-Y. Niu, T. Qian, J. Randerson, S. Running, K. Sakaguchi, A. Slater, R. Stockli, A. Wang, Z.-L. Yang, Xi. Zeng, and Xu. Zeng, 2010: Technical Description of version 4.0 of the Community Land Model (CLM). NCAR Technical Note NCAR/TN-478+STR, National Center for Atmospheric Research, Boulder, CO, 257 pp
CRUNCEP Forcing
Piao et. al. 2012: The carbon budget of terrestrial ecosystems in East Asia over the last two decades. Biogeosciences, 9, 3571-3586, Doi: 10.5194/bg-9-3571-2012. (CRUNCEP forcing)