Cell size in meters. Only values of 10, 20, 50, 100, 200, 500, 1000, 2000, 5000, or 10000 are allowable.
GridOrigin
Sets origin of grid
Coordinate Pair given as HRAP, SHG, or UTM cell numbers
GridRows
Number of rows in grid
Integer
GridCols
Number of columns in grid
Integer
GridBounds
Bounding coordinates of grid
Two coordinate pairs as longitude, latitude.
OutUnits
Sets units on output grids
Optional. Default value is mm. Any unit supported by DSS. (mm or INCHES for precipitation; DEG C or DEG F for temperature)
OutDataType
Sets DSS data type for output grids
Defaults to PER-CUM. Use INST-VAL for temperature grids.
OutParameter
Identifies data type for unit conversions.
Default value is precip. Will be set to airtemp if units are DEG C or DEG F.
OutFile
Names DSS file for output
Existing DSS file name or new filename
OutPath
Names DSS path for output
Valid DSS path name (D and E parts can be blank) /RUSSIAN/WRS/PRECIP///INTERPOLATED/
Additional notes on setting grid parameters in the control file:
When using ‘TIN’ for the GridType, the Outfile parameter must also be a path mask.
When TIN images are saved, the location of the points that comprise the TIN are the locations of the gages as defined in the control file.
When using elevation or temperature biasing, the TIN locations that fall outside of the boundary of the biasing grid are marked as outside of the grid before saving as it is not possible to compute a valid bias for those points.
UTM zone ID is specified as a number (1-60) followed by an ‘N’ or ‘S’ to indicate northern or southern hemisphere. “UTM 17N” means zone 17 in the northern hemisphere. “UTM 59S” means zone 59 in the southern hemisphere.
Use only one method to specify the grid origin and size. The first setting of an origin or size of the grid is the only one that will be accepted. Once a grid origin, row or column count is specified, any attempt to redefine it will be rejected.
Longitude and latitude for GridBounds can be entered in any of the following formats:
Decimal degrees, negative for west longitude or south latitude (e.g. -91.5050)
Decimal degrees, NSEW suffix for hemisphere (e.g. 91.5050W)
Integer ddmmss, negative for west longitude and south latitude (e.g. -913018)
Delimited degrees minutes seconds, can include decimal seconds (e.g. 91d30'18.0"W)
Delimited degrees minutes, can include decimal minutes (e.g. 91d30.3'W)
GridBounds coordinate pairs should be entered as longitude, latitude, longitude, latitude. The entry “91.0W, 38.0N, 90.0W, 39.0N” for example, specifies a one-degree quadrangle enclosing St. Louis, Missouri.
For most applications, the OutParameter setting can be left out of the control file. This parameter serves two purposes: it forms part of automatically generated output file names and it affects unit conversions.
If the OutParameter value is set to precip (the default value) or airtemp, HEC-MetVue will convert the units of input data to match the output units given in the control file.
If this parameter is set to any other value, HEC-MetVue will not perform any unit conversions, and the user must make sure that the input time series data are all in the same units as the output grids.
The OutFile name can be specified as a DSS filename or a masked path name for storing images in files.
If the value contains a mask, it is assumed to be a filename for a non-DSS file.
HEC-MetVue determines if a filename is a mask if it contains ‘%’ characters in the path with a valid data formatting definition between them. Refer to File/Path Masking Specifications for examples of valid path masks.
If the filename does not contain a mask, it is used as a DSS filename.