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4.2.12. SUEWS_Water.txt¶
SUEWS_Water.txt specifies the characteristics for the water surface
cover type by linking codes in column 1 of SUEWS_Water.txt to the codes
specified in SUEWS_SiteSelect.txt (Code_Water
).
No. |
Column Name |
Use |
Description |
---|---|---|---|
1 |
Code linking to a corresponding look-up table. |
||
2 |
Effective surface albedo (middle of the day value) for wintertime (not including snow). |
||
3 |
Effective surface albedo (middle of the day value) for summertime. |
||
4 |
Effective surface emissivity. |
||
5 |
Minimum water storage capacity for upper surfaces (i.e. canopy). |
||
6 |
Maximum water storage capacity for upper surfaces (i.e. canopy) |
||
7 |
Depth of water which determines whether evaporation occurs from a partially wet or completely wet surface [mm]. |
||
8 |
Upper limit to the surface state. [mm] |
||
9 |
Water depth [mm]. |
||
10 |
Calculation choice for Drainage equation |
||
11 |
Coefficient D0 [mm h-1] used in |
||
12 |
Coefficient b [-] used in |
||
13 |
Code for OHM coefficients to use for this surface during wet conditions in summer, linking to SUEWS_OHMCoefficients.txt. |
||
14 |
Code for OHM coefficients to use for this surface during dry conditions in summer, linking to SUEWS_OHMCoefficients.txt. |
||
15 |
Code for OHM coefficients to use for this surface during wet conditions in winter, linking to SUEWS_OHMCoefficients.txt. |
||
16 |
Code for OHM coefficients to use for this surface during dry conditions in winter, linking to SUEWS_OHMCoefficients.txt. |
||
17 |
Temperature threshold determining whether summer/winter OHM coefficients are applied [°C] |
||
18 |
Soil moisture threshold determining whether wet/dry OHM coefficients are applied [-] |
||
19 |
Code for ESTM coefficients linking to SUEWS_ESTMCoefficients.txt |
||
20 |
Volumetric heat capacity for this surface to use in AnOHM [J m-3] |
||
21 |
Thermal conductivity for this surface to use in AnOHM [W m K-1] |
||
22 |
Bulk transfer coefficient for this surface to use in AnOHM [-] |
An example SUEWS_Water.txt can be found below:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
Code AlbedoMin AlbedoMax Emissivity StorageMin StorageMax WetThreshold StateLimit WaterDepth DrainageEq DrainageCoef1 DrainageCoef2 OHMCode_SummerWet OHMCode_SummerDry OHMCode_WinterWet OHMCode_WinterDry OHMThresh_SW OHMThresh_WD ESTMCode AnOHM_Cp AnOHM_Kk AnOHM_Ch
1000 0.08 0.08 0.95 0.5 0.5 0.5 2000 2000 0 0 0 60 60 60 60 10 0.9 60 4100000 1.2 4 ! Helsinki Jarvi et al. (2014)
551 0.1 0.1 0.95 0.5 0.5 0.5 1000 1000 -999 -999 -999 60 60 60 60 10 0.9 60 4100000 1.2 4 ! Swindon (no water) Ward et al. (2013)
661 0.1 0.1 0.95 0.5 0.5 0.5 30000 20000 0 0 0 60 60 60 60 10 0.9 813 4100000 1.2 4 ! London
-9
-9