Web-Map tutorial

We have recorded some tutorials to help you learn how to use the Global Wind Atlas mapping interface. Additionally we have included descriptions of the Web Processing Services that can be used to plot various views of the atmospheric renalysis data and a sampling of the Global Wind Atlas data. These tools are functions that perform analysis on the Atlas data for a region of interest defined by the users.

Video Tutorials

Toggle Map Layers

Here you will learn how to add different layers to the map.

Draw analysis plots

Here you will learn about the different analysis plots made availible through the web interface.

Download .lib files

Here you will learn how to download .lib files to run your own WAsP simulation. You can download data from either the nearest point, or all libs enclosed within a polygon of interest.

Analysis Tools

 Applying input data

To describe the broader wind conditions four of the tools use data from reanalysis models to show the temporal variability in the data as well as the predominant wind directions. Two reanalysis data are availible for plotting. MERRA data is availible on a 1/2 degree latitude by 2/3 degree longitude grid every 6 hours from 1979 - 2013. CFDDA data is availible on a global 0.4 degree grid hourly from 1985 - 2005.
Line
content
1
Reanalysis identification string ix and iy index values for the calculation point in the GWA job tile  < coordinates > lon_string,lat_string,0.0  < /coordinates > 
2
Number of roughness classes, heights and sectors in data set. In GWA the values are 5,3,12
3
Reference roughness lengths [m]. In GWA the values are: 0.0, 0.03, 0.10 and 0.40, 1.5 m
4
Reference heights above ground level [m]. In GWA the values are: 50, 100 and 200 m a.g.l.
5
Frequencies of occurrence for reference roughness 1 (0 m)
6
Weibull A-parameters for reference height 1 (50 m) in [ms-1]
7
Weibull k-parameters for reference height 1 (50 m)
8-9
Weibull A- and k-parameters for reference height 2 (100 m)
10-11
Weibull A- and k-parameters for reference height 3 (200 m)
12-16
As lines 5-9, but for reference roughness 2 (0.03 m)
17-21
As lines 5-9, but for reference roughness 3 (0.10 m)
22-26
As lines 5-9, but for reference roughness 4 (0.40 m)
27-31
As lines 5-9, but for reference roughness 5 (1.50 m)
Table 7.1 
Generalized wind climate data in WAsP lib-file format.

 Applying full calculation output data

The tools below use the full calculation output data sampled at 1000 m spacing.
Contributing authors Jake Badger, Neil Davis