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TSTool / Command / WriteSHEF

Overview

The WriteSHEF command write time series to a Standard Hydrologic Exchange Format (SHEF) .A record format file. See the SHEF Input Type appendix for more information about the file format. The SHEF physical element (PE) codes are similar to time series data type codes. The PE code is looked up based on data type information that is available for the execution environment. Currently there is no default PE information. The PE code can be supplied using the DataTypePELookup parameter. Additional parameters are being added to use a lookup table.

This command has primarily been developed to handle hourly data and additional enhancements may be needed for other intervals and data types.

Command Editor

The following dialog is used to edit the command and illustrates the syntax of the command.

WriteSHEF

WriteSHEF Command Editor for Input Time Series Parameters (see also the full-size image)

WriteSHEF-Data

WriteSHEF Command Editor for SHEF Data Parameters (see also the full-size image)

WriteSHEF-Output

WriteSHEF Command Editor for Output Parameters (see also the full-size image)

Command Syntax

The command syntax is as follows:

WriteSHEF(Parameter="Value",...)

Command Parameters

Parameter                  Description Default                           
TSList Indicates the list of time series to be processed, one of:
  • AllMatchingTSID – all time series that match the TSID (single TSID or TSID with wildcards) will be processed.
  • AllTS – all time series before the command.
  • EnsembleID – all time series in the ensemble will be processed (see the EnsembleID parameter).
  • FirstMatchingTSID – the first time series that matches the TSID (single TSID or TSID with wildcards) will be processed.
  • LastMatchingTSID – the last time series that matches the TSID (single TSID or TSID with wildcards) will be processed.
  • SelectedTS – the time series are those selected with the SelectTimeSeries command.
 AllTS
TSID The time series identifier or alias for the time series to be processed, using the * wildcard character to match multiple time series. Can be specified using ${Property}. Required if TSList=*TSID
EnsembleID The ensemble to be processed, if processing an ensemble. Can be specified using ${Property}. Required if TSList=*EnsembleID
OutputFile The SHEF output file. The path to the file can be absolute or relative to the working directory (command file location). None – must be specified.
Append Indicate whether the output should be appended to the file. False – create the file.
DataTypePELookup Pairs of data type and SHEF physical element (PE) codes. The pairs should be separated by semicolons and the data type/PE strings by commas. For example, the data values for instantaneous streamflow and air temperature might be: QIN,QI;TAIN,TA Use information determined for operational environment, if available.
OutputStart The date/time for the start of the output. Use the global output period.
OutputEnd The date/time for the end of the output. Use the global output period.
TimeZone The time zone to be used for all SHEF records. Z (Zulu time).
ObservationTime Observation time to use for all SHEF records. Specify as a full string (e.g., DH1200) or an integer (e.g., 1200), in which case the prefix will be determined based on data. For example, use this parameter to specify the observation time for daily data. Time corresponding to time series data values.
CreationDate The creation date to use for all SHEF records. Specify as a full string (e.g., DC20010131) or an integer (e.g., 20010131), in which case the prefix automatically will be added. Not used in output.
Duration The duration code to use for all SHEF records. Specify as a literal string (e.g., DVH06). Determined automatically from irregular time series, not used for regular interval time series.
Precision Number of digits after the decimal to use for output. Determine from the time series data units, or use 2 by default.

Examples

See the automated tests.

Troubleshooting

See Also