Tip

  1. Need help? Please let us know in the UMEP Community.

  2. Please report issues with the manual on the GitHub Issues.

  3. Please cite SUEWS with proper information from our Zenodo page.

2.2.10. SUEWS_Soil.txt

SUEWS_Soil.txt specifies the characteristics of the sub-surface soil below each of the non-water surface types (Paved, Bldgs, EveTr, DecTr, Grass, BSoil). The model does not have a soil store below the water surfaces. Note that these sub-surface soil stores are different to the bare soil/unmamnaged surface cover type. Each of the non-water surface types need to link to soil characteristics specified here. If the soil characteristics are assumed to be the same for all surface types, use a single code value to link the characteristics here with the SoilTypeCode columns in SUEWS_NonVeg.txt and SUEWS_Veg.txt.

Soil moisture can either be provided using observational data in the met forcing file (the xsmd column when SMDMethod = 1 or 2 in RunControl.nml) and providing some soil properties here, or modelled by SUEWS (SMDMethod = 0 in RunControl.nml).

No.

Column Name

Use

Description

1

Code

L

Code linking to a corresponding look-up table.

2

SoilDepth

MD

Depth of soil beneath the surface [mm]

3

SoilStoreCap

MD

Limit value for SoilDepth [mm]

4

SatHydraulicCond

MD

Hydraulic conductivity for saturated soil [mm s-1]

5

SoilDensity

MD

Soil density [kg m-3]

6

InfiltrationRate

O

Infiltration rate.

7

OBS_SMDepth

O

The depth of soil moisture measurements. [mm]

8

OBS_SMCap

O

The maximum observed soil moisture. [m3 m-3 or kg kg-1]

9

OBS_SoilNotRocks

O

Fraction of soil without rocks. [-]

An example SUEWS_Soil.txt can be found below:

1    	 2         	 3            	 4                	 5           	 6                	 7           	 8         	 9
Code 	 SoilDepth 	 SoilStoreCap 	 SatHydraulicCond 	 SoilDensity 	 InfiltrationRate 	 OBS_SMDepth 	 OBS_SMCap 	 OBS_SoilNotRocks
551  	 350       	 150          	 5.00E-04         	 -999        	 -999             	 -999        	 -999      	 -999             	 ! 	 Swindon   (below   Paved)  	 Ward   et   al.   (2013)
552  	 350       	 150          	 5.00E-04         	 -999        	 -999             	 -999        	 -999      	 -999             	 ! 	 Swindon   (below   Built)  	 Ward   et   al.   (2013)
553  	 350       	 150          	 5.00E-04         	 -999        	 -999             	 -999        	 -999      	 -999             	 ! 	 Swindon   (below   others) 	 Ward   et   al.   (2013)
661  	 350       	 150          	 5.00E-04         	 -999        	 -999             	 -999        	 -999      	 -999             	 ! 	 London
-9
-9