Particle tracking

[Alfredo Terrazas]

Hi HYCOM experts.

Is there a way to run HYCOM with particle tracking (online)? If so, could you help me and tell me where to begin? 

Thank you.

Alfredo. 

[Rodrigo Duran]

Perhaps this comes in handy?

http://transport.me.berkeley.edu/trace/

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[Alfredo Terrazas]

Thank you, Rodrigo. That tool looks interesting, but I want to release some particles near the thermocline, I think most of these tools work for releasing particles on the ocean surface, that is why I want to know if there is some feature on HYCOM's code for doing that while running the model.

[Alan Wallcraft]

See mod_floats.F90 for "drifters".  The only example I have is 15 years old, ATLb_floats.tar.gz there is an initial floats.input and each model run produces a floats.input_out (see floats.input_002 for example) to serve as the "restart" for the next segment (where it is renamed floats.input).  The float data is a text file floats.out.  I renamed all .com files as .csh, and 016.csh contains the needed floats scripting logic.

This isn't really designed for a large number of "particles", but it does provide a basic drifter capability.

Alan.

[Jason Tilley]

You could try LTRANS or the Connectivity Modeling System (CMS). I have had no luck with either, so I am developing a Cython-based tracking model, but it may be difficult for others to install the package until I have everything finalized. It can be found here if you wanted to give it a shot... https://github.com/jasontilley/octapy

[Jason Tilley]

Also, note that mine is currently only running with 1/25º GOM data, but could probably be modified pretty easily.