Modifying static geographic data and adding a new landuse type

[Pechudin]

Hello beautiful community,

I am a PostDoc at a wind energy research centre in Germany (Oldenburg, ForWind institute). I want to modify the static geographic data that is contained in the Modis + lakes dataset, specifically the land use. I know how to change these fields in the geo_em and met_em files, but I would prefer if I did not have to do this every time I change the WRF domain's position or resolution.

I have tried opening the files using QGIS, but it does not recognize the binary format. I have managed to open it with python, but editing in python is tedious for anything other than rectangular domains (however saving such edits is easy).

• (Perhaps I will just do that then, modify the values in a polygon)

Additionally, how does one add new landuse values? I know I would need to add new lines to LANDUSE.TBL and VEGPARM.TBL, but would any code modification be needed?

Petar Golem

 

[Ming Chen]

Hi Petar,
To add/modify static input data for WPS, please follow the instruction given in WRF User's Guide (Chapter 3: WRF Standard Initialization)

If you add new information to LANDUSE.TBL and VEGPARM.TBL, you need to change the codes accordingly to read these two files correctly. Specifically, please look at the codes ./phys/module_physics_init.F for LANDUSE.TBL. VEGPARM.TBL are handled in ./phys/module_sf_noahdrv.F and ./phys/module_sf_ruclsm.F.