HYPE Model Documentation

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.
====== RHobs.txt ======

Relative humidity is an optional forcing data. It can be used for calculation of potential evaporation. Several of the available model options for potential evaporation depend on vapor pressures and net radiation, which may be calculated with the help of relative humidity data. 

The file is located in the ''modeldir'' folder. Relative humidity (unitless value 0-1) is given for
all time steps. The //RHobs-file// is read only if ''readhumid'' is set in [[start:hype_file_reference:info.txt|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 [[start:HYPE_file_reference:info.txt|info.txt]]. 

The second to last columns are relative humidityfor all stations or subbasins. The ID number (first row) may be ''rhobsid'' or ''subid''. If ''pobsid'' is used, several subbasins may use the same relative humiditytime series. ''subid'' is defined in [[start:HYPE_file_reference:GeoData.txt|GeoData.txt]]. The order of subbasins in //RHobs.txt// does not have to be same as in [[start:HYPE_file_reference:GeoData.txt|GeoData.txt]]. ''rhobsid'' may be defined in [[start:HYPE_file_reference:forckey.txt|ForcKey.txt]] or [[start:HYPE_file_reference:GeoData.txt|GeoData.txt]].

Example snippet of //RHobs.txt// file:

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

//RHobs_nnn.txt// holds relative humidity forcing data for sequence with seqnr nnn. For seqnr 0 //RHobs.txt// is used.
HYPE Model Documentation

User Tools

Site Tools

Page Tools
