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What's the difference among the 4 types of land use type in USGS?

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Xiaoxingyun

New member
Hi all,

I am confused about the 4 types of land use about urban in USGS data in the LANDUSE.TBL:

1. 'Urban and Built-Up Land'
31. 'Low Intensity Residential '
32. 'High Intensity Residential'
33. 'Industrial or Commercial'


What is the difference between type 1 and the other 3 types?

Besides, when luindex=1, changing AH (anthropogenic heating) does not take effect. But when luindex=32, changing AH (anthropogenic heating) takes effect. Any suggestions about it?

Many thanks in advance.
 
Hi,
I guess you post the same question in WPS forum. Anyway, please see my answers below:
'Urban and Built-Up Land' is the urban type defined in USGS landuse dataset. The following three types are more detailed categorization of urban land use type.
31. 'Low Intensity Residential '
32. 'High Intensity Residential'
33. 'Industrial or Commercial'

When you run WRF with urban physics on (sf_urban_physics != 0), the above three more detailed landuse type is supposed to better represent urban characteristics.

Note that AH only has values corresponding to lu_index=31,32,33. AH is not specified for lu_index=1 (urban in USGS).
 
Ming Chen said:
Hi,
I guess you post the same question in WPS forum. Anyway, please see my answers below:
'Urban and Built-Up Land' is the urban type defined in USGS landuse dataset. The following three types are more detailed categorization of urban land use type.
31. 'Low Intensity Residential '
32. 'High Intensity Residential'
33. 'Industrial or Commercial'

When you run WRF with urban physics on (sf_urban_physics != 0), the above three more detailed landuse type is supposed to better represent urban characteristics.

Note that AH only has values corresponding to lu_index=31,32,33. AH is not specified for lu_index=1 (urban in USGS).

Thank you very much!
 
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