Note
Please report issues with the manual on the GitHub page.
4.2.4. SUEWS_Irrigation.txt¶
SUEWS includes a simple model for external water use if observed data are not available. The model calculates daily water use from the mean daily air temperature, number of days since rain and fraction of irrigated area using automatic/manual irrigation. The sub-daily pattern of water use is modelled according to the daily cycles specified in SUEWS_Profiles.txt.
Alternatively, if available, the external water use can be provided in
the met forcing file (and set WaterUseMethod
= 1 in
RunControl.nml) by filling the Wuh
columns with valid values.
No. |
Column Name |
Use |
Description |
---|---|---|---|
1 |
Code linking to a corresponding look-up table. |
||
2 |
Day when irrigation starts [DOY] |
||
3 |
Day when irrigation ends [DOY] |
||
4 |
Internal water use [mm h-1] |
||
5 |
Fraction of irrigated area that is irrigated using automated systems |
||
6 |
water depth to maintain used in automatic irrigation (e.g., ponding water due to flooding irrigation in rice crop-field) [mm]. |
||
7 |
Coefficient for automatic irrigation model [mm d-1 ] |
||
8 |
Coefficient for automatic irrigation model [mm d-1 K-1] |
||
9 |
Coefficient for automatic irrigation model [mm d-2 ] |
||
10 |
Coefficient for manual irrigation model [mm d-1 ] |
||
11 |
Coefficient for manual irrigation model [mm d-1 K-1] |
||
12 |
Coefficient for manual irrigation model [mm d-2 ] |
||
13 |
Irrigation allowed on Sundays [1], if not [0] |
||
14 |
Irrigation allowed on Mondays [1], if not [0] |
||
15 |
Irrigation allowed on Tuesdays [1], if not [0] |
||
16 |
Irrigation allowed on Wednesdays [1], if not [0] |
||
17 |
Irrigation allowed on Thursdays [1], if not [0] |
||
18 |
Irrigation allowed on Fridays [1], if not [0] |
||
19 |
Irrigation allowed on Saturdays [1], if not [0] |
||
20 |
Fraction of properties using irrigation on Sundays [0-1] |
||
21 |
Fraction of properties using irrigation on Mondays [0-1] |
||
22 |
Fraction of properties using irrigation on Tuesdays [0-1] |
||
23 |
Fraction of properties using irrigation on Wednesdays [0-1] |
||
24 |
Fraction of properties using irrigation on Thursdays [0-1] |
||
25 |
Fraction of properties using irrigation on Fridays [0-1] |
||
26 |
Fraction of properties using irrigation on Saturdays [0-1] |
An example SUEWS_Irrigation.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
Code Ie_start Ie_end InternalWaterUse Faut Ie_a1 Ie_a2 Ie_a3 Ie_m1 Ie_m2 Ie_m3 DayWat(1) DayWat(2) DayWat(3) DayWat(4) DayWat(5) DayWat(6) DayWat(7) DayWatPer(1) DayWatPer(2) DayWatPer(3) DayWatPer(4) DayWatPer(5) DayWatPer(6) DayWatPer(7)
99999 1 366 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ! No irrigation
1 152 243 0 0.2 -84.535 9.959 3.674 -25.36 2.988 1.102 1 1 1 1 1 1 1 1 1 1 1 1 1 1
550 1 366 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ! Swindon "(not used, no irrigation)"
660 1 366 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ! London (assume no irrigation at the moment)
-9
-9