Note
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4.2.11. SUEWS_Veg.txt¶
SUEWS_Veg.txt specifies the characteristics for the vegetated surface cover types (EveTr, DecTr, Grass) by linking codes in column 1 of SUEWS_Veg.txt to the codes specified in SUEWS_SiteSelect.txt (Code_EveTr, Code_DecTr, Code_Grass). Each row should correspond to a particular surface type. For suggestions on how to complete this table, see: Typical Values.
| No. | Column Name | Use | Description |
|---|---|---|---|
| 1 | Code |
L |
Code linking to a corresponding look-up table. |
| 2 | AlbedoMin |
MU |
Effective surface albedo (middle of the day value) for wintertime (not including snow). |
| 3 | AlbedoMax |
MU |
Effective surface albedo (middle of the day value) for summertime. |
| 4 | Emissivity |
MU |
Effective surface emissivity. |
| 5 | StorageMin |
MD |
Minimum water storage capacity for upper surfaces (i.e. canopy). |
| 6 | StorageMax |
MD |
Maximum water storage capacity for upper surfaces (i.e. canopy) |
| 7 | WetThreshold |
MD |
Depth of water which determines whether evaporation occurs from a partially wet or completely wet surface [mm]. |
| 8 | StateLimit |
MD |
Upper limit to the surface state. [mm] |
| 9 | DrainageEq |
MD |
Calculation choice for Drainage equation |
| 10 | DrainageCoef1 |
MD |
Coefficient D0 [mm h-1] used in DrainageEq |
| 11 | DrainageCoef2 |
MD |
Coefficient b [-] used in DrainageEq |
| 12 | SoilTypeCode |
L |
Code for soil characteristics below this surface linking to Code of SUEWS_Soil.txt |
| 13 | SnowLimPatch |
O |
Limit for the snow water equivalent when snow cover starts to be patchy [mm] |
| 14 | BaseT |
MU |
Base Temperature for initiating growing degree days (GDD) for leaf growth. [°C] |
| 15 | BaseTe |
MU |
Base temperature for initiating sensesance degree days (SDD) for leaf off. [°C] |
| 16 | GDDFull |
MU |
The growing degree days (GDD) needed for full capacity of the leaf area index (LAI) [°C]. |
| 17 | SDDFull |
MU |
The sensesence degree days (SDD) needed to initiate leaf off. [°C] |
| 18 | LAIMin |
MD |
leaf-off wintertime value |
| 19 | LAIMax |
MD |
full leaf-on summertime value |
| 20 | PorosityMin |
MD |
leaf-off wintertime value Used only for DecTr (can affect roughness calculation) |
| 21 | PorosityMax |
MD |
full leaf-on summertime value Used only for DecTr (can affect roughness calculation) |
| 22 | MaxConductance |
MD |
The maximum conductance of each vegetation or surface type. [mm s-1] |
| 23 | LAIEq |
MD |
LAI calculation choice. |
| 24 | LeafGrowthPower1 |
MD |
a parameter required by LAI calculation in LAIEq |
| 25 | LeafGrowthPower2 |
MD |
a parameter required by LAI calculation [K-1] in LAIEq |
| 26 | LeafOffPower1 |
MD |
a parameter required by LAI calculation [K-1] in LAIEq |
| 27 | LeafOffPower2 |
MD |
a parameter required by LAI calculation [K-1] in LAIEq |
| 28 | OHMCode_SummerWet |
L |
Code for OHM coefficients to use for this surface during wet conditions in summer, linking to SUEWS_OHMCoefficients.txt. |
| 29 | OHMCode_SummerDry |
L |
Code for OHM coefficients to use for this surface during dry conditions in summer, linking to SUEWS_OHMCoefficients.txt. |
| 30 | OHMCode_WinterWet |
L |
Code for OHM coefficients to use for this surface during wet conditions in winter, linking to SUEWS_OHMCoefficients.txt. |
| 31 | OHMCode_WinterDry |
L |
Code for OHM coefficients to use for this surface during dry conditions in winter, linking to SUEWS_OHMCoefficients.txt. |
| 32 | OHMThresh_SW |
MD |
Temperature threshold determining whether summer/winter OHM coefficients are applied [°C] |
| 33 | OHMThresh_WD |
MD |
Soil moisture threshold determining whether wet/dry OHM coefficients are applied [-] |
| 34 | ESTMCode |
L |
Code for ESTM coefficients linking to SUEWS_ESTMCoefficients.txt |
| 35 | AnOHM_Cp |
MU |
Volumetric heat capacity for this surface to use in AnOHM [J m-3] |
| 36 | AnOHM_Kk |
MU |
Thermal conductivity for this surface to use in AnOHM [W m K-1] |
| 37 | AnOHM_Ch |
MU |
Bulk transfer coefficient for this surface to use in AnOHM [-] |
| 38 | BiogenCO2Code |
MU |
Code linking to the Code column in SUEWS_BiogenCO2.txt. |
An example SUEWS_Veg.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 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
Code AlbedoMin AlbedoMax Emissivity StorageMin StorageMax WetThreshold StateLimit DrainageEq DrainageCoef1 DrainageCoef2 SoilTypeCode SnowLimPatch BaseT BaseTe GDDFull SDDFull LAIMin LAIMax PorosityMin PorosityMax MaxConductance LAIEq LeafGrowthPower1 LeafGrowthPower2 LeafOffPower1 LeafOffPower2 OHMCode_SummerWet OHMCode_SummerDry OHMCode_WinterWet OHMCode_WinterDry OHMThresh_SW OHMThresh_WD ESTMCode AnOHM_Cp AnOHM_Kk AnOHM_Ch BiogenCO2Code
300 0.1 0.1 0.98 1.3 1.3 1.3 1.3 2 0.013 1.71 70 190 5 10 300 -450 4 5.1 -999 -999 7.4 1 0.04 0.001 -1.5 0.0015 200 200 200 200 10 0.9 200 1000000 1.2 4 21 ! ET Helsinki Jarvi et al (2014)
330 0.16 0.16 0.98 0.3 0.8 0.8 0.8 2 0.013 1.71 70 190 5 10 300 -450 1 5.5 0.2 0.6 11.7 1 0.04 0.001 -1.5 0.0015 200 200 200 200 10 0.9 200 1000000 1.2 4 21 ! DT Helsinki Jarvi et al (2014)
360 0.19 0.19 0.93 1.9 1.9 1.9 1.9 3 10 3 70 190 5 10 300 -450 1.6 5.9 -999 -999 40 1 0.04 0.001 -1.5 0.0015 200 200 200 200 10 0.9 200 1000000 1.2 4 21 ! IG Helsinki Jarvi et al (2014)
361 0.19 0.19 0.93 1.9 1.9 1.9 1.9 2 0.13 1.71 70 190 5 10 300 -450 1.6 5.9 -999 -999 33.1 1 0.04 0.001 -1.5 0.0015 200 200 200 200 10 0.9 200 1000000 1.2 4 21 ! UG Helsinki Jarvi et al (2014)
551 0.1 0.1 0.98 1.3 1.3 1.8 1.3 2 0.013 1.71 553 -999 6 11 300 -450 4 5.1 -999 -999 7.4 1 0.04 0.001 -1.5 0.0015 200 200 200 200 10 0.9 810 1000000 1.2 4 11 ! EveTr Swindon Ward et al. (2013)
552 0.12 0.18 0.98 0.3 0.8 1 0.8 2 0.013 1.71 553 -999 6 11 300 -450 1 5.5 0.2 0.6 11.7 1 0.04 0.001 -1.5 0.0015 200 200 200 200 10 0.9 811 1000000 1.2 4 11 ! DecTr Swindon Ward et al. (2013)
553 0.18 0.21 0.93 1.9 1.9 2 1.9 2 0.013 1.71 553 -999 6 11 300 -450 1.6 5.9 -999 -999 33.1 1 0.04 0.001 -1.5 0.0015 200 200 200 200 10 0.9 812 1000000 1.2 4 11 ! Grass Swindon Ward et al. (2013)
661 0.11 0.12 0.98 1.3 1.3 1.3 1.3 2 0.013 1.71 661 120 5 11 300 -450 4 5.1 -999 -999 7.4 0 0.03 0.0005 0.03 0.0005 200 200 200 200 10 0.9 810 1000000 1.2 4 11 ! EveTr London
662 0.12 0.18 0.98 0.3 0.8 0.8 0.8 2 0.013 1.71 661 120 5 11 300 -450 1 5.5 0.2 0.6 11.7 0 0.03 0.0005 0.03 0.0005 200 200 200 200 10 0.9 811 1000000 1.2 4 11 ! DecTr London
663 0.18 0.21 0.93 1.9 1.9 1.9 1.9 2 0.013 1.71 661 120 5 11 300 -450 1.6 5.9 -999 -999 33.1 0 0.03 0.0005 0.03 0.0005 200 200 200 200 10 0.9 812 1000000 1.2 4 11 ! Grass London
700 0.11 0.12 0.98 1.3 1.3 1.3 1.3 2 0.013 1.71 661 120 5 11 300 -450 4 5.1 -999 -999 7.4 0 0.03 0.0005 0.03 0.0005 201 201 201 201 10 0.9 810 1000000 1.2 4 11 ! EveTr London
701 0.12 0.18 0.98 0.3 0.8 0.8 0.8 2 0.013 1.71 661 120 5 11 300 -450 1 5.5 0.2 0.6 11.7 0 0.03 0.0005 0.03 0.0005 201 201 201 201 10 0.9 811 1000000 1.2 4 11 ! DecTr London
702 0.18 0.21 0.93 1.9 1.9 1.9 1.9 2 0.013 1.71 661 120 5 11 300 -450 1.6 5.9 -999 -999 33.1 0 0.03 0.0005 0.03 0.0005 201 201 201 201 10 0.9 812 500000 0.2 1 11 ! Grass London
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