Dear all,
It looks like the precipitation raster size has an impact on all final rasters. I used the precipitation and evapotranspiration monthly data rasters from www.worldclim.org. The precipitation raster has a grid of 4.5 x 4.5 km, which is very coarse. On the other side, the potential evapotranspiration raster has 900 x 900 m, which is ok. Do you have any recommendations for a source of reliable precip/evapotranspiration data, please?
Study area is in Europe.
Thanks a lot!
Hello @Pazur -
The WorldClim data does come at 30s (~1km) resolution, that’s the smallest available.
Since you’re working in Europe, you might look into the European Space Agency and/or European Commission for data. I’m not sure if they provide precipitation and/or ET0, but they might.
If you find precipitation data that you like (especially if it comes with minimum/maximum temperature as well), you can calculate your own evapotranspiration layer, as described in the User Guide.
If anyone working in Europe has more specific advice, please chime in!
~ Stacie
Hi Stacie,
Till now, I found 10, 5, and 2.5 minutes resolution at World Clim. I definitely will try 30 sec and I think that will be perfect.
Thanks a lot!