SABAE-HW3DA Hydro-meteorological

Model Couplingthe Land Surface and Groundwater Flow

Youssef Loukili and Allan D. Woodburywoodbur@cc.umanitoba.ca loukili@cc.umanitoba.ca

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)