Model:ISSM

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ISSM

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Summary Contact Technical specs In/Output Process Testing Other Component info Also known as Model type Single Model part of larger framework Note on status model Date note status model Incorporated models or components: Spatial dimensions 2D Spatial extent Global, Continental, Regional-Scale Model domain Terrestrial, Cryosphere One-line model description Ice Sheet System Model (ISSM) Extended model description ISSM is the result of a collaboration between the Jet Propulsion Laboratory and University of California at Irvine. Its purpose is to tackle the challenge of modeling the evolution of the polar ice caps in Greenland and Antarctica. ISSM is open source and is funded by the NASA Cryosphere, GRACE Science Team, ICESat Research, ICESat-2 Research, NASA Sea-Level Change Team (N-SLCT), IDS (Interdisciplinary Research in Earth Science), ESI (Earth Surface and Interior), and MAP (Modeling Analysis and Prediction) programs, JPL R&TD (Research, Technology and Development) and the National Science Foundation Keywords: ice sheet, glacier, sea-level rise, glacial isostatic adjustment, GIA, Name Eric Larour Type of contact Model developer Institute / Organization Jet Propulsion Laboratory Postal address 1 4800 Oak Grove Drive Postal address 2 Town / City Pasadena Postal code 91109 State California Country United States Email address issm@jpl.nasa.gov Phone (818) 970-8032 Fax Supported platforms Linux, Mac OS, Windows Other platform Programming language C++, Python, Java, Matlab Other program language Code optimized Multiple Processors Multiple processors implemented Distributed memory Nr of distributed processors Nr of shared processors Start year development 2005 Does model development still take place? Yes If above answer is no, provide end year model development Code development status Active When did you indicate the 'code development status'? 2020 Model availability As code Source code availability (Or provide future intension) Through web repository Source web address https://issm.jpl.nasa.gov Source csdms web address Program license type Other Program license type other Three-clause BSD license Memory requirements varies Typical run time varies Describe input parameters geometry of ice sheets, ice shelves, land-ice, ocean boundaries; material parameters; climate forcings (i.e surface mass balance); basal friction at the ice/bed interface; flightlines; errors; boundaries; grids; preview images Input format ASCII, Binary Other input format NetCDF Describe output parameters ice flow of an ice sheet, sea-level rise, visco-elastic uplift Output format Binary Other output format Pre-processing software needed? No Describe pre-processing software Post-processing software needed? No Describe post-processing software Visualization software needed? No If above answer is yes Other visualization software Describe processes represented by the model ice stress balance, ice mass transport / free surface, ice thermal (cold- and enthalpy-based), dual continuum hydrology, SHAKTI hydrology, GlaDS hydrology, ice damage mechanics, transient (time-dependent projection), grounding line dynamics, glacial isostatic adjustment (GIA), solid earth elastic response, sea-level fingerprints, positive degree day (PDD), surface energy balance (snow densification and surface mass balance calculation with the GEMB model), basal melt parameterizations (PICO/PICOP), empirical scalar tertiary anisotropy regime (ESTAR), uncertainty quantification capabilities (Dakota) Describe key physical parameters and equations See https://issm.jpl.nasa.gov/ Describe length scale and resolution constraints From hundreds of meters to thousands of kilometers (constraints are mainly HEC-related). Describe time scale and resolution constraints Typical time step of two weeks (constraints are mainly HEC-related). Describe any numerical limitations and issues Poor scaling for ice-flow models with direct solvers (improves upon use of iterative solvers, but convergence is not systematic). Describe available calibration data sets -- Upload calibration data sets if available: Describe available test data sets Nightly runs are carried out on every SVN repository commit. Upload test data sets if available: Describe ideal data for testing -- Do you have current or future plans for collaborating with other researchers? ISSM is a collaborative software development project by its nature, with a growing community of cryosphere scientists who rely upon it. There are efforts in place to expand use of ISSM in the GIA and SLR communities. Is there a manual available? Yes Upload manual if available: Media:ISSM userguide 2017.pdf Model website if any https://issm.jpl.nasa.gov/ Model forum / discussion board https://issm.ess.uci.edu/forum Comments This part will be filled out by CSDMS staff OpenMI compliant No but possible BMI compliant No but possible WMT component No but possible PyMT component Is this a data component Can be coupled with:

Model info Authors Eric Larour Source code Go to external source code site Model citations Nr. of publications: 82 Total citations: 1686 h-index: 22 m-quotient: 1.69 QR-code Link to this page Other models by author ISSM

Introduction

ISSM was originally developed by Eric Larour, Mathieu Morlighem, and Helene Seroussi in 2005. The development team and number of users has grown significantly since, and includes (among others) Nicole Schlegel, Surendra Adhikari, Lambert Caron, Josh Cuzzone, and Basile de Fleurian.

History

In addition to the developers and users noted above, significant contributions to ISSM have been made by Jean Utke, Johannes Bondizio, John Schiermeier, Thiago Dias dos Santos, Ellen Robo, Gilberto Perez, Chris Borstad, Brett Lemorzadec, Felicity McCormack, Youngmin Choi, Tyler Pelle, Justin Quinn, Feras Habbal, Martin Rueckamp, Silvestri Rebuffi, Alex Scott, Aleah Sommers, Luka Wester, Henning Åkesson, Silje Johnsen, Behnaz Khazbak, Charlotte Lang, Michiel Helsen, Daniel Cheng, Winnie Chu, Dimitris Menemenlis, Nicolas Mokus, Nathan Ma, Yannic Fischler, Sri Hari Krishna Narayanan, Einar Olason, Karita Kajanto, Issac Smith, Claire Girard, and Ala Khazendar. Please see our Web site at https://issm.jpl.nasa.gov/about/aboutus/ for more information.

References

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Nr. of publications:	82
Total citations:	1686
h-index:	22
m-quotient:	1.69

Featured publication(s)	Year	Model described	Type of Reference	Citations
Larour, E.; Seroussi, H.; Morlighem, M.; Rignot, E.; 2012. Continental scale, high order, high spatial resolution, ice sheet modeling using the Ice Sheet System Model (ISSM): ICE SHEET SYSTEM MODEL. Journal of Geophysical Research: Earth Surface, 117, n/a–n/a. 10.1029/2011JF002140 (View/edit entry)	2012	ISSM	Model overview	377
See more publications of ISSM

See our Web site at https://issm.jpl.nasa.gov/publications/ for references.

Issues

See our Web site at https://issm.jpl.nasa.gov/ for capability status.
See our forum at https://issm.ess.uci.edu/forum/ for debugging and other information.
Emergency issues can be reported to issm@jpl.nasa.gov.

Help

See our Web site at https://issm.jpl.nasa.gov/ for known issues related to installation and running of ISSM.
See our forum at https://issm.ess.uci.edu/forum/ for debugging and other information.
Emergency issues can be reported to issm@jpl.nasa.gov.

Input Files

See our Web site at https://issm.jpl.nasa.gov/ for more information.

Output Files

See our Web site at https://issm.jpl.nasa.gov/ for more information.