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RegESM: Regional Earth System Model

DOI Build Status still under testing

Supported Components

  • Atmosphere (ATM):
    • RegCM version >4.5 (it needs extra patch for co-processing)
    • WRF version 3.8.1
  • Ocean (OCN):
    • ROMS revision 809
    • ROMS-Ice: The driver is not tested with new CICE implementation !!!
    • MITgcm version c63s
  • River Routing (RTM):
    • HD version 1.0.2
  • Wave (WAV):
    • WAM version Cycle_4.5.3_MPI
  • Co-processing (COP):
    • ParaView version 5.4.1: It requires Catalyst module and also GPU with graphics mode enabled.


  • RegESM itself (as a driver)
  • Earth System Modeling Framework (ESMF) Library: version 7.1.0
  • Model Components (patched and installed with coupling support - see documentation for more information)


Table of Contents:

  1. Model Design
  2. Benchmark
  3. Installation
  4. Usage
  5. Co-processing
  6. Limitations
  7. Known Issues


A tutorial for two component coupling (RegCM+ROMS) over Black Sea can be found in here. This repository is the same one that is used in First Regional Earth Sistem Modeling Summer School 2016 held in ITU, Turkey.


Co-processing Component Generated Movies


Please cite following publications in case of using RegESM coupled modeling system or any variants of it:

  • Turuncoglu, U.U., Onol, B., and Ilicak, M., 2019. A new approach for in situ analysis in fully coupled earth system models. In Proceedings of the Workshop on In Situ Infrastructures for Enabling Extreme-Scale Analysis and Visualization (ISAV '19). ACM, New York, NY, USA, 6-11, link

  • Turuncoglu, U.U., 2019. Toward modular in situ visualization in Earth system models: the regional modeling system RegESM 1.1, Geosci. Model Dev., 12, 233-259, link

  • Turuncoglu, U.U., 2017. Integration of ParaView Catalyst with Regional Earth System Model, Kitware Source (Software Developer's Quarterly), 42, 7-10. link

  • Turuncoglu, U.U., Sannino, G., 2016. Validation of newly designed regional earth system model (RegESM) for Mediterranean Basin, Climate Dynamics, 48(9), 2919–2947, doi:10.1007/s00382-016-3241-1 link

Previous publications with early version of the two-component (atmosphere-ocean) coupled model:

  • Turuncoglu, U. U., Giuliani, G., Elguindi, N., and Giorgi, F., 2013. Modelling the Caspian Sea and its catchment area using a coupled regional atmosphere-ocean model (RegCM4-ROMS): model design and preliminary results, Geosci. Model Dev., 6, 283-299, doi:10.5194/gmd-6-283-2013 link

Release Notes


New in Version 1.2

  • The COP component is optimized for very-high resolution applications

New in Version 1.1

  • New co-processing component is introduced to allow in situ visualization applications for multi-component earth system model configurations
  • Updated and revisited model documentation (under doc/ directory)