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WRF Default Landcover and Soil Texture dataset sources and citations

politeness

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Dear Sir or Madam,
Is there a corresponding resource to the WPS data downloads page (i.e., Static Data Downloads)
that documents their root data sources and production details?

For example, I am specifically interested in the documentation for the following static fields distributed w/ WPS v4.3.1:
modis_landuse_20class_15s_with_lakes
soiltype_top_30s
soiltype_bot_30s

Thank you for any information you can provide.
 
Thank you for your response.
At the website you provided, I see under Background Surface Fields, information for

1) Modified IGBP MODIS 20-category vegetation
This dataset does not include lakes, like the WPS Alternative High Resolution field used (https://www2.mmm.ucar.edu/wrf/src/wps_files/modis_landuse_20class_15s_with_lakes.tar.gz), so further details would be useful.

2)Hybrid (30-second for CONUS and 5-min elsewhere) 16-category soil texture map
It seems that this dataset likely corresponds to WRF default soiltype_top_30s and soiltype_bot_30s.

In the readme, it states:
"The FAO two-layer 5-minute 16-category global soil texture maps
are remaped into global 30-second regular lat-lon grid. Within CONUS,
the soil texture is then replaced by the 30-second STATSGO data
obtained from http://www.essc.psu.edu/soil_info/index.cgi?soil_data&index.html.
The dominant soil texture from 0-30 cm (30-100 cm) from multi-layer
STATSGO soil was selected to match the FAO soil depths and to produce
the top (bottom) soil texture."

And indeed, in Dennis and Berbery (2022; https://doi.org/10.1175/JHM-D-21-0101.1), they write:
"The default soil texture classifications in WRF are provided
using the USDA STATSGO soil dataset (NRCS 2012). For
regions outside of the United States, the Food and Agricul-
ture Organization (FAO) Soil Map of the World (FAO/
UNSECO 1971), which is about 5-km grid spacing, is
employed. Within the United States, STATSGO is used."
 
Hello,

I would like to add a follow up question to this post.

I cant find the year when the soil texture data used in WRF version 4.2.2 (or latest version) was created. Is it 2012? or more recent?
Where can I find information on this? The above links also does not give the exact details on this.

Thank you!

-Lyndz
 
Hello,

I would like to add a follow up question to this post.

I cant find the year when the soil texture data used in WRF version 4.2.2 (or latest version) was created. Is it 2012? or more recent?
Where can I find information on this? The above links also does not give the exact details on this.

Thank you!

-Lyndz
In fact the origin of the data is not clear in the documentation, unfortunately. Alternatively you could use a high-resolution, well-documented global dataset derived from the Harmonized World Soil Database, version 2.0, and adapted for use as input to WRF. You can find it here: Global soil type dataset for WRF-ARW model, based on HWSD version 2
 
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