CROCO Coastal and Regional Ocean COmmunity model


Coastal and Regional Ocean COmmunity model

CROCO is a new oceanic modeling system built upon ROMS_AGRIF and the non-hydrostatic kernel of SNH (under testing), gradually including algorithms from MARS3D (sediments)  and HYCOM (vertical coordinates). An important objective for CROCO is to resolve very fine scales (especially in the coastal area), and their interactions with larger scales. It is the oceanic component of a complex coupled system including various components, e.g., atmosphere, surface waves, marine sediments, biogeochemistry and ecosystems. Although it retains the latest ROMS_AGRIF capabilities, the present beta version is in development for new capabilities (e.g., non-hydrostatic kernel) and sees changes on daily basis. As such, it should be used with care until official release of CROCO Version 1.0.

CROCO project: beta version (under development)


Watch CROCO in action on Youtube


Because transition will occur within a projected period of 4 years, the present web site will keep its ROMS_AGRIF flavor for a while. The documentation will also gradually evolve to describe the code and model functionalities in more details …

Mailing list


See the list of CROCO developers

Save the date : 1st CROCO User Meeting

The first CROCO User Meeting will be held on May 22-24, 2017, at Observatoire Midi Pyrénées (Délégation Régionale du CNRS), in Toulouse, France (20 mn from the city center), 14-16 avenue Edouard Belin.

All informations here

The meeting is open to CROCO users and all coastal modelers with a possible interest in CROCO capabilities. The format of the meeting is as follows :

  • Day 1: Presentation of CROCO’s capabilities by the lead developers + existing CROCO applications
  • Day 2: Oral presentations by participants on their current research and on their views on limitations and necessary development of regional/coastal models.
  • Day 3 (half day): Moving forward – working groups will be tasked to better define the community’s needs.

See informations for further details on venue, accommodations …

Organizing Committee : Eric Chassignet ( , Rachid Benshila (


OBSERVATOIRE MIDI-PYRENEES : 14, avenue Edouard Belin - 31400 TOULOUSE - Tél. +33 (0)5 61 33 29 29 - Fax : +33 (0)5 61 33 28 88

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