The
ASCII CSV data consist of many records composed by
two fields separated by a space or by a comma. The first field must contain the direction value, while the second contains the second variable, usually wind speed, but sometimes Pasquill Gifford stability class, concentration of a pollutant, or any other directional variable.
There are different ways to create an input file for WindRose PRO. One is to build a small Fortran program (or a program with any other language familiar to the user) for processing the original meteorological data and then write them in two columns as required. Another one is to import your data in MS Excel, then save them as CSV (Comma Separated Values) by means of the 'Save as' menu item (verify in your international settings that you have a comma as a field separator). ASCII input files must have the extension .CSV.
An example of data that can be loaded by WindRose PRO is the following (note that there are not header records):
54,2.9
51,3.4
57,4.3
63,5.1
57,5.1
Please note that the
wind direction must always be in degrees (do not use radians), while the units of the second variable are known by the user and not used by WindRose PRO.
After loading the data, the total number of data and the total number of valid data, together with the percentage, appear in the lower right corner of the main mask. The number of valid data is determined using the
filtering options specified by the user.
An example of CSV ASCII input file is contained under the directory Sample of the installation path, and is called sample.csv.