Precipitation → General Data Types MethodThe input variables used for this Precipitation method are defined as follows:
Precipitation falls as snow (and snow depth is incremented) whenever the air temperature drops below 0 degrees Celsius. If air temperatures are specified in another input dialog, such as those for Evapotranspiration and Snowmelt, those values will take precedence over values entered here. For each variable, you may choose from the droplist of data types. For the "Scalar" data type, enter a numeric value with the units that are indicated in the dialog. For the other data types, enter a filename. The values in the file must also have the indicated units. Single grids and grid sequences are assumed to be stored as RTG and RTS files, respectively. Time series are assumed to be stored as text files, with one value per line. For a time series or grid sequence, the time between values must coincide with the timestep provided. Note: If rainrates are entered as a grid sequence in the RTS file format, then the corresponding durations between frames should be entered as a time series with the same number of values as there are frames in the RTS file. You will need to create a time series of durations even if all of the durations are the same. For periods with no rain, the grid sequence of spatial rainrates should contain one frame in which all the values are zero and the time series of durations should contain a corresponding scalar value which gives the number of minutes for which there is no rain. |