Record Search Query: [Personnel: Last_Name='GFDL USER SUPPORT']
HIM: The Hallberg Isopycnal Model
Entry ID: NOAA_GFDL_HIM
Abstract: The Hallberg Isopycnal Model (HIM) simulates the ocean by numerically solving
the Boussinesq primitive equations in isopycnal vertical coordinates and
general orthogonal horizontal coordinates. These equations are horizontally
discretized on an Arakawa C-grid. There are a range of options for the physical
parameterizations, from those most appropriate to highly idealized models for
studies of ... geophysical fluid dynamics to a rich suite of processes appropriate
for realistic ocean simulations. The thermodynamic options range from an
adiabatic model with fixed density layers to a model with temperature and
salinity as state variables and using a full nonlinear equation of state. The
uppermost few layers may be used to describe a bulk mixed layer, including the
effects of penetrating shortwave radiation. Either a split- explicit time
stepping scheme or a non-split scheme may be used for the dynamics, while the
time stepping may be split (and use different numbers of steps to c over the
same interval) for the forcing, the thermodynamics, and for the dynamics. Most
of the numerics are second order accurate in space and great care is taken in
the handling of vanishing layers.
This user's manual describes how to configure and run HIM. It is short
because the model is fairly simple to run. It is the author's experience that
a number of people have been able to get scientifically meaningful
simulations going in less than a day with about this level of guidance.
HIM User Guide: http://www.gfdl.noaa.gov/~rwh/HIM/HIM_User_Manual.html
Retrieve the following items from the NOAA Operational Model Archive and
Distribution System (NOMADS) system home page under the GFDL-NOMADS PUBLIC
SOURCE FILES section.
HIM-beta Source Files and Datasets: including Source Files, Source Update
Files, and Test Case Datasets. Registration Form for HIM-beta HIM User's
[Summary Extracted from the HIM User's Guide]
Access Constraints Users must register before accessing HIM-Beta Source Files.
Use Constraints Cite Model creator if you use this model.
Creation and Review Dates