![]() |
DART Documentation Main Index |
The Global Ionosphere Thermosphere Model (GITM) is a 3-dimensional spherical
code that models the Earth's thermosphere and ionosphere system using a
stretched grid in latitude and altitude. For a fuller description of using
GITM within DART, please see the
DART GITM model documentation.
gitm_to_dart is the program that reads
GITM restart files (i.e. b?????.rst)
and creates a DART output/restart file
(e.g. perfect_ics, filter_ics, ... ).
The list of variables used to create the DART state vector are specified in
the input.nml file.
Conditions required for successful execution of gitm_to_dart:
The individual model instances are run in unique directories. This is also where the converter routines gitm_to_dart and dart_to_gitm are run. This makes it easy to use a single 'static' name for the input and output filenames. advance_model.csh is responsibile for linking the appropriate files to these static filenames.
The simplest way to test the converter is to compile GITM and run a single model state forward using work/clean.sh. To build GITM ... download GITM and unpack the code into DART/models/gitm/GITM2 and follow these instructions:
cd models/gitm/GITM2 ./Config.pl -install -compiler=ifortmpif90 -earth make cd ../work ./clean.sh 1 1 0 150.0 170.0 1.0
We adhere to the F90 standard of starting a namelist with an ampersand '&' and terminating with a slash '/' for all our namelist input. Character strings that contain a '/' must be enclosed in quotes to prevent them from prematurely terminating the namelist.
&gitm_to_dart_nml gitm_to_dart_output_file = 'dart_ics', / &model_nml gitm_restart_dirname = 'advance_temp_e1/UA/restartOUT', assimilation_period_days = 0, assimilation_period_seconds = 1800, model_perturbation_amplitude = 0.2, output_state_vector = .false., calendar = 'Gregorian', debug = 0, gitm_state_variables = 'Temperature', 'QTY_TEMPERATURE', 'eTemperature', 'QTY_TEMPERATURE_ELECTRON', 'ITemperature', 'QTY_TEMPERATURE_ION', 'iO_3P_NDensityS', 'QTY_DENSITY_NEUTRAL_O3P', ...
Contents | Type | Description |
---|---|---|
gitm_to_dart_output_file | character(len=128) | The name of the DART file containing the model state derived from the GITM restart files. |
The full description of the model_nml namelist is documented in the gitm model_mod, but the most important variable for gitm_to_dart is repeated here.
Contents | Type | Description |
---|---|---|
gitm_restart_dirname | character(len=256) | The name of the directory containing the GITM restart files and runtime control information. |
gitm_state_variables | character(len=32), dimension(2,80) |
The list of variable names in the gitm restart file to use to create the DART state vector and their corresponding DART kind. The default list is specified in model_mod.nml |
obs_def_upper_atm_mod.f90 assim_model_mod.f90 types_mod.f90 location/threed_sphere/location_mod.f90 models/gitm/GITM2/src/ModConstants.f90 models/gitm/GITM2/src/ModEarth.f90 models/gitm/GITM2/src/ModKind.f90 models/gitm/GITM2/src/ModSize.f90 models/gitm/GITM2/src/ModTime.f90 models/gitm/GITM2/src/time_routines.f90 models/gitm/dart_gitm_mod.f90 models/gitm/gitm_to_dart.f90 models/gitm/model_mod.f90 null_mpi_utilities_mod.f90 obs_kind_mod.f90 random_seq_mod.f90 time_manager_mod.f90 utilities_mod.f90
none - all error messages come from modules that have their own documentation.
none
None.
DART software - Copyright UCAR. This open source software is provided by UCAR, "as is", without charge, subject to all terms of use at http://www.image.ucar.edu/DAReS/DART/DART_download
Contact: | Tim Hoar |
Revision: | $Revision$ |
Source: | $URL$ |
Change Date: | $Date$ |
Change history: | try "svn log" or "svn diff" |