We have completed beta testing of mom4. Many thanks to those providing input over the past 1.5 years. This critical work has resolve a number of issues. New options and diagnostics have been updated, and portability to various platforms has been tested. Additionally, various bugs have been corrected (see below). Overall, our tests indicate that the code is producing scientifically relevant simulations. Nonetheless, experience has shown that nothing is perfect, especially with the many varieties of computer platforms. Hence, your continued input, support, and patience is most appreciated.
This release version of mom4 is known as mom4p0a. The "a" suffix" anticipates subsequent releases with bug fixes, new features, updates for different platforms, etc. To access the code, please register in Section 4 of the mom4 Web User Guide at
http://www.gfdl.noaa.gov/~fms/pubrel/j/mom4/doc/mom4_manual.html
Registration is required even if you previously registered as a mom4-beta tester.
Here are two things to keep in mind.
1. The code is being released via a GForge system locally run at GFDL. This system allows for CVS control of the code. Hence, you are encouraged to access the code via cvs commands (see the mom4 web guide for details). We also have tar-balls for those not wishing to use cvs.
2. GForge provides software for bug tracking, support requests, etc. We encourage folks to make use of this software. The mom4-email list is maintained to broadcast announcements to the community, as well as questions which are of a general nature. Registering at the above web site automatically subscribes you to the mom4-email list. We strongly request that users employ either the GForge software or the mom4-email list. Allowing the mom4-queries to be addressed by the larger user community helps educate all users, and broadens the level of support far beyond that available from GFDL folks.
As with any project of this magnitude, there remain unresolved issues. Such drives the development of new models. MOM4 will nonetheless remain a key component of GFDL ocean climate research for years. We hope that you find it to be of use for your research as well.
Sincerely, Stephen Griffies (for the MOM4 Team)
p.s. A nontrivial bug was introduced into the mom4-beta2 and mom4-beta3 versions in ocean_freesurf.F90. If "use_waterflux=.true.", contributions from surface fresh water forcing were incorrrectly omitted from the barotropic part of the time stepping for the surface height. This bug was not present in mom4-beta1. This bug has been corrected in the mom4p0a release.
-- Stephen M. Griffies phone: +1-609-452-6672 Geophysical Fluid Dynamics Laboratory FAX: +1-609-987-5063 P.O. Box 308, Forrestal Campus Site B email: [EMAIL PROTECTED] Princeton, NJ 08542 USA http://www.gfdl.noaa.gov/~smg
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