loaddnmi

Last updated Fri Nov 19 12:58:12 1999


Load data from a DNMI file into a CODAS database

1. USAGE

loaddnmi control_file

2. DESCRIPTION

This utility was written for loading 2-D tide data from a numerical model into a CODAS database. These data were made available by the Norwegian Meteorological Institute (Det Norske Meteorologiske Institutt) where the name loaddnmi.

Currently, only data files containing 2-D tide data is supported. The required producer definition file defining the database is DNMI_2DT.def.

3. PARAMETERS

The following parameters have to be defined in the control file:



dbname: database_name

Name of database, eventually prefixed with the path to its location, if not in the current directory. Remember that the base name if a database should not exceed five characters.

prd_file: file

Name and path of producer definition file defining the CODAS database.

4. OPTIONS

The following options are implemented:



OPTIONS:

This key word can be used to improve the clarity of the control file and specify the beginning of options. It has no effect.

longitude_180

Specify this for converting longitude values between -180 and +180 degree before using them.

grid_points= float

In the case where data stored in the binary files refer to a polar stereographic map projection grid, the number of grid points from the Equator to the North Pole along the center meridian must be known for converting data back into geographical positions. Because files do not always have this parameter saved together with the data, this parameter must be provided separately.

time_range: range

The time range in the usual format, i.e.

YYYY/MM/DD hh:mm:ss to YYYY/MM/DD hh:mm:ss
specifying which part of the data to load into the database. Note that this option must be specified.

position_range: range

Position range specifying the area of selected data to load into the database. The format is the following:

lat1 lon1 to lat2 lon2
where latitudes and longitudes can be specified in the following formats:
{d}dd mm' ss.ss" S
{d}dd mm.mmmm' S
{d}dd.dddddd S
S{d}dd.dddddd
where the optional leading digit d is for longitudes, the sign S is one of NSy+- for latitudes and EWX+- for longitudes. Hemisphere signs XY refer to bad positions and +- are used for the form where the sign S is placed in front of data. Note that this option must be specified.

end

This keyword is mandatory and terminates the list of selected options.

5. LIST OF FILES

Finally, the control file is terminated by the list of DNMI files to parse.

6. OUTPUT FILES

The only files generated by this utility are the database files.

7. AUTHOR

Pierre Jaccard, Geophysical Institute, University of Bergen, 1999


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