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start:hype_file_reference:vwobs.txt

VWobs.txt

The v-component of wind speed is an optional forcing data. It is the southerly wind and goes south to north. It can be used for calculation of snowfall distribution.

The file is located in the modeldir folder. V-component of wind speed (m/s) is given for all time steps. No missing values may exist (program won’t check!). The VWobs-file is read only if readvwobs is set in info.txt.

The first row is column headings. It holds a text string (e.g. 'date', no spaces allowed) for the first column, and integers in the form of station or subbasin ID numbers for the rest of the columns.

The first column is date-time. The default format is yyyy-mm-dd [HH:MM], where hour and minutes are necessary if the timestep is shorter than one day. The date-time is the beginning of the timestep. It is possible to use another date-time format: yyyymmdd[HHMM]. It is expected for all forcing files, if readformat 1 is set in info.txt.

The second to last columns are wind for all stations or subbasins. The ID number (first row) may be vwobsid or subid. If vwobsid is used, several subbasins may use the same wind time series. subid is defined in GeoData.txt. The order of subbasins in VWobs.txt does not have to be same as in GeoData.txt. vwobsid may be defined in ForcKey.txt.

Example snippet of VWobs.txt file:

date         1234  1245 
1990-01-01   0.7     0.75  
1990-01-02   0.8     0.65 
... 

VWobs_nnn.txt holds v-component wind speed forcing data for sequence with seqnr nnn. For seqnr 0 VWobs.txt is used.

start/hype_file_reference/vwobs.txt.txt · Last modified: 2020/04/29 10:52 by cpers