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3.2.4. SUEWS_Irrigation.txt#
External water use may be used for a wide range of reasons (e.g. cleaning roads, irrigating plants, fountains, washing cars).
SUEWS has two options for External Water use (if non-zero):
provide observed data in meteorological forcing file in the
Wuhcolumn with valid values by settingWaterUseMethod= 1 in RunControl.nmla simple model that 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 user needs to supply coefficients (XXX) for these relations.
sub-daily pattern of water use is detemined from the daily cycles specified in SUEWS_Profiles.txt.
surface that the water can be applied to is specified by XX.
water can pond.
No. |
Column Name |
Use |
Description |
|---|---|---|---|
1.0 |
Code linking to a corresponding look-up table. |
||
2.0 |
Day when irrigation starts [DOY] |
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3.0 |
Day when irrigation ends [DOY] |
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4.0 |
Internal water use [mm h-1] |
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5.0 |
Fraction of irrigated area that is irrigated using automated systems |
||
6.0 |
water depth to maintain used in automatic irrigation (e.g., ponding water due to flooding irrigation in rice crop-field) [mm]. |
||
7.0 |
Coefficient for automatic irrigation model [mm d-1 ] |
||
8.0 |
Coefficient for automatic irrigation model [mm d-1 K-1] |
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9.0 |
Coefficient for automatic irrigation model [mm d-2 ] |
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10.0 |
Coefficient for manual irrigation model [mm d-1 ] |
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11.0 |
Coefficient for manual irrigation model [mm d-1 K-1] |
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12.0 |
Coefficient for manual irrigation model [mm d-2 ] |
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13.0 |
Irrigation allowed on Sundays [1], if not [0] |
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14.0 |
Irrigation allowed on Mondays [1], if not [0] |
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15.0 |
Irrigation allowed on Tuesdays [1], if not [0] |
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16.0 |
Irrigation allowed on Wednesdays [1], if not [0] |
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17.0 |
Irrigation allowed on Thursdays [1], if not [0] |
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18.0 |
Irrigation allowed on Fridays [1], if not [0] |
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19.0 |
Irrigation allowed on Saturdays [1], if not [0] |
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20.0 |
Fraction of properties using irrigation on Sundays [0-1] |
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21.0 |
Fraction of properties using irrigation on Mondays [0-1] |
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22.0 |
Fraction of properties using irrigation on Tuesdays [0-1] |
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23.0 |
Fraction of properties using irrigation on Wednesdays [0-1] |
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24.0 |
Fraction of properties using irrigation on Thursdays [0-1] |
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25.0 |
Fraction of properties using irrigation on Fridays [0-1] |
||
26.0 |
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