User-Guide.md

@@ -47,7 +47,7 @@ by at least one space. Some keywords are followed by a group of numbers.
 |*form* | obsolete, put 0 (means adjustable ASCII format, see below) |
 |*height_T_q* | The height above the lake surface at which temperature and humidity are given (calculated by the atmospheric model or measured), m|
 |*height_u* | The height above the lake surface at which the wind speed is given (calculated by the atmospheric model or measured), m|
-|*interval* | The time step of meteorological data, days |
+|*interval* | The time step of meteorological data, hours |
 |*rad* | Defines, atmospheric radiation (1) or net radiation (2) is in the relevant column of datafile, relevant if input file is ASCII (forc_format = 0) |
 
 **The set of parameters for adjustable format of input text file, relevant if forc_format = 0, form = 0**