sabae-hw3d a hydro-meteorological model coupling the land surface and groundwater flow youssef...
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SABAE-HW3DA Hydro-meteorological
Model Couplingthe Land Surface and Groundwater Flow
Youssef Loukili and Allan D. [email protected] [email protected]
Department of Civil Engineering – University of Manitoba
Winnipeg , Manitoba , Canada
SABAE-HWSoil Atmosphere Boundary,
Accurate Evaluations of Heat and Water
1. Free choice of soil column depth and layers in SABAE-HW
2. More accuracy in the water mass balance terms
3. Efficient coupling with groundwater models through water table b.c.
4. Complete update of CLASS v 2.6 to Fortran 90/95
5. Extensive validation and inter-comparisons to other models (HELP, SHAW, HYDRUS)
Meteorological inputs required by CLASS and SABAE-HW :
1. Incoming long wave and short wave solar radiation 2. Precipitation 3. Wind speed 4. Air temperature 5. Atmospheric pressure 6. Specific humidity , or relative humidity
Soil characteristics ( Clapp and Hornberger model )
Vegetation parameters
Output :
1. Surface, canopy, snow and soil layer temperatures 2. Liquid and frozen water contents 3. Surface heat flux 4. Net absorbed short and long wave radiations 5. Sensible and latent heat fluxes 6. Water evaporation, pond and bottom drainage 7. Snow accumulation and snow melt
Comparisons
• Loukili, Y. , Snelgrove, K.R., and A.D. Woodbury, SABAE-HW – An enhancement of the water balance prediction in the Canadian Land Surface Scheme, Vadose Zone J., (accepted), 2008.
• Loukili, Y. and D. D. Woodbury, ABAE-HW3D: a Meteor-Hydrological Model Coupling the Land Surface to Groundwater Flow, Eos Trans. AGU, 88(52), Fall Meet. Suppl., 2007
• Loukili, Y., Woodbury, A.D. and K.R. Snelgrove, AccuCLASS - an Enhancement of the Canadian Land Surface Scheme for Climate Assessment Over the Prairies, Eos Trans. AGU, 87(52), Fall Meet. Suppl., 2006
• Field Testing Assiniboine Delta Aquifer (ADA)
Qu’Appelle
River
Souris
River
AssiniboineRiver
Red River
AssiniboineDelta Aquifer
U.S.A.
LL-98
.Canada
Lake Manitoba
Lake Winnipeg
Winnipeg
Pine Creek North of Assiniboine Delta Aquifer of Manitoba
NARR meteorological data (1999-2003) – Resolution 32 x 32 km2
LL-98
o
sand
sand
Loamy
sand
0.50 m
3.25 m
0.35 m
Winnipeg
Depth = 20 cm
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
1-Jan-99 2-Jan-00 2-Jan-01 3-Jan-02 4-Jan-03 5-Jan-04
To
tal
mo
istu
re (
cm/c
m)
SABAECLASS
Depth = 20 cm
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
1-Jan-99 2-Jan-00 2-Jan-01 3-Jan-02 4-Jan-03 5-Jan-04
To
tal m
ois
ture
(cm
/cm
)
SABAESHAW
0
5
10
15
20
25
30
35
40
1-Jan-99 2-Jan-00 2-Jan-01 3-Jan-02 4-Jan-03 5-Jan-04
Sn
ow
dep
th (
cm)
SABAE
SHAW
0
10
20
30
40
50
60
70
1-Jan-99 2-Jan-00 2-Jan-01 3-Jan-02 4-Jan-03 5-Jan-04
Da
ily p
on
d (
mm
)
SABAE
SHAW
31-Jan-03
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5Depth (m)
Mo
istu
re (
cm/c
m)
SABAE (liquid) SABAE (frozen)
SHAW (liquid) SHAW (frozen)
CLASS (liquid) CLASS (frozen)
• SABAE-HW operating in each soil columnTime step = 30 min
• 2D horizontal saturated flow using Finite Volume MethodTime step = 5 days ( conservative fluxes )
• Soil columns and grids extend to water tableUpdated each 5 days ( grid regeneration allowed )
• Bottom drainage summed up and provided as cell (groundwater) recharge
The meteor-hydrological coupled model SABAE-HW3D
ADA Transmissivity x 103 U.S. Gals/Ft/Day
20
4060
80
100
120
140
160
180
200
40
12040
40
20
40
120
80
10 0
20
40
140
ADA’s Bedrock elevation
XY
Z
base390370350330310290270
Depth to the water table in the ADA (m)
x (m)
y(m
)
460000 480000 500000 520000
5.49E+06
5.5E+06
5.51E+06
5.52E+06
5.53E+06
5.54E+06
5.55E+06
5.56E+06
top-h13962
March 25, 2000
Saturated thickness in the ADA (m)
x (m)
y(m
)
460000 480000 500000 520000
5.49E+06
5.5E+06
5.51E+06
5.52E+06
5.53E+06
5.54E+06
5.55E+06
5.56E+06
h-base2821147
March 25, 2000
Piezometric head in the ADA (m)
x (m)
y(m
)
460000 480000 500000 520000
5.49E+06
5.5E+06
5.51E+06
5.52E+06
5.53E+06
5.54E+06
5.55E+06
5.56E+06
h380.423376.971373.519370.067366.615363.162359.71356.258352.806349.354345.902342.45338.998335.546332.094328.641325.189321.737318.285314.833311.381307.929304.477301.025297.573
March 25, 2000
Recharge to Groundwater in the ADA (mm)
x (m)
y(m
)
460000 480000 500000 520000
5.49E+06
5.5E+06
5.51E+06
5.52E+06
5.53E+06
5.54E+06
5.55E+06
5.56E+06
dlydrain0.6112690.5778010.5443340.5108670.4773990.4439320.4104640.3769970.343530.3100620.2765950.2431270.209660.1761930.1427250.1092580.07579050.04232310.00885575
-0.0246116-0.058079-0.0915464-0.125014-0.158481-0.191949
March 25, 2000
Distributed frozen moisture in the top 10 cm of soil in the ADA
x (m)
y(m
)
460000 480000 500000 520000
5.49E+06
5.5E+06
5.51E+06
5.52E+06
5.53E+06
5.54E+06
5.55E+06
5.56E+06
Mice10.3581160.3530910.3480660.3430410.3380160.3329910.3279660.3229410.3179160.3128910.3078660.3028410.2978160.2927910.2877660.2827410.2777160.2726910.2676660.2626410.2576160.2525910.2475660.2425410.237516
February 4, 2000
Flow directions and the water divides in the ADA
x (m)
y(m
)
460000 480000 500000 520000
5.49E+06
5.5E+06
5.51E+06
5.52E+06
5.53E+06
5.54E+06
5.55E+06
5.56E+06March 25, 2000
Frozen moisture – Cross section West-East ADA
Soil Temperatures – Cross section West-East ADA
Cumulative Recharge to WT – Entire ADA
Summary and Conclusions
1. SABAE-HW is inter-compared with SHAW and CLASS models and proved to be effective for a cold region hydrology.
2. SABAE-HW3D efficiently couples the unsaturated and saturated flows using weather forcing data.
3. SABAE-HW3D is benchmarked against Seep/w (Geo-Slope International, 2002).
4. The coupled model is also successfully applied to the Assiniboine Delta Aquifer of Manitoba.
5. Further simulations are planed using downscaled weather data and actual vegetation cover.
Liquid moisture – Cross section West-East ADA
Team and Milestones
• Dr. Youssef Loukili, Research Associate
• Alireza Hejazi, Ph.D. student
Team and Milestones
• Field experiments & hypothesis testing: September 2008 (Hayashi, Loukili, Hejazi)
• Further code development, Fall 2008• GMS-MODFLOW of ADA (3-D aquifer): May
2008 (Hejazi)• Refinement of stand-alone SABAE runs
(Hanesiak, NARCCAP of ADA), Fall 2008 (Loukili)
• Full linkage SABAE-HW3D and GCM (single column), Fall 2008
• Detailed runs over ADA, Fall 2008 (Hejazi)