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2012/ISTWG/WKSP/010
Introduction of H08 a Water Resources Model and Application
Submitted by: King Mongkut's University of Technology Thonburi
(KMUTT)
Workshop on Climate Change Adaptation in the Asia-Pacific: Observations and Modeling Tools for Better Planning
Singapore 16-17 August 2012
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Introduction of H08 a water resources
model and Application
Chaiwat Ekkawatpanit
King Mongkut’s University of Technology Thonburi, Thailand
Naota Hanasaki
National Institutes for Environmental Studies, Japan
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Outline
• Introduction of H08 model
• An example of H08 model simulation in the Upper
Chao Phraya River basin
Simulation without reservoir operation
Modeling reservoir operation
Simulation with reservoir operation
• Application with Climate change simulation
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H08 model
Human
activity
Natural
hydrology
•H08 model1.Simulate both natural water cycle and
human water activities at daily basis
2.Open source software(Fortran on linux)
Hanasaki et al., 2006, J. of Hydrol.
Hanasaki et al. ,2008a,b, Hydrol. Earth Sys. Sci.
Hanasaki et al., 2010, J. of Hydrol
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Schematic of H08’s land surface process
module
QtotEvapcpSWESoilMoist −−=∆+∆ Pr
QgQleQhLWupSWupLWdownSWdown −−−+=+
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Schematic of H08’s river module
tRivOutxAQRivInfRivSto tot ∆−+=∆ )(
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Study Area:
Chao Phraya River Basin
http://en.wikipedia.org/wiki/File:Chaophrayarivermap.png
Area 158,000km2
Area of
Floodplain35,000 km
River bed
slope
1/50,000 ~ 60,000
(Ayutthaya – River Mouth)
Largest
Discharge
At C2
5,960 m3/s in 2006
(4,686 m3/s on Oct. 14,
2011)
Bhumibol Dam
(13.5 Billion m3)
Sirikit Dam
(9.5 Billion m3)
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Study Area
• In this study, we focused on
Bhumibol and Sirikit Reservoirs
only.
• In reality, reservoir operations are
very complex
• We propose an idealized simple
reservoir model.
• Although simple, this simulation
offers good insight into river
management and planning.
Bhumibol Dam
Sirikit Dam
Nakhon SawanChainat
Ayutthaya
Bangkok
Chao Phraya River Basin
N1
Y1C
W21
P1
W4A
Y4
Y16N5A
P17 N67
C2
C13
C35Rojana
Ping
Wang
Yom
Nan
Pa S
ak
Chao P
hra
ya
Tha C
hin
Elev. (m)
0-10
10-20
20-30
30-50
50-100
100-150
500-1,000
1,000-1,500
1,500-2,000
2,000-2,572
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Overall perspective
• Objective
– Hydrological analysis of the upper Chao Phraya River basin
(upper Nakhon Sawan, C2 station)
– 1981-2004
– Reservoir operation options
H08 model
(NIES & UT)
Meteorological data
Hydrological model
with reservoir operation
Geographical data
River discharge
Reservoir storage
Reservoir release
Flooded area
Long term analysis
(>1yr,monthly/annual interval)
Gridded data
(5 min lon/lat)
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Data development
• To execute H08, 7 meteorological variables are indispensable at daily
interval, namely air temperature, humidity, air pressure, wind speed,
shortwave radiation, longwave radiation, and precipitation.
• All data must be gridded at 5 min lon/lat (approx. 9km x 9km)
Developed Data
Data name Period Variables Data source
K10 1981-2004 All Global data
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Y6
H08 Validation
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W4A
11
H08 Validation
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Modeling Bhumibol Reservoir
Minimum storage3.8x109m3 (28%)
High water level13.462x109m3 (100%)
New upper curve9.0x109m3 (67%)
2012 Upper curve6.0x109m3 (45%)
End of April End of July
Low
Mid
High
Old upper curve10.8x109m3 (80%)
storage
release
Operation rule
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Modeling Sirikit Reservoir
Minimum storage2.850x109m3 (30%)
High water level9.510x109m3 (100%)
New upper curve6.2x109m3 (65%)
2012 upper curve4.3x109m3 (45%)
End of April End of July
Low
Mid
High
Old upper curve7.2x109m3 (75%)
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Long-term simulation with reservoir
(Validating reservoir operation model)
Monthly discharge at C2 [m3/s]
(reservoir operation included)
Succeeded in developing hydrological model with reservoir operation.
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Application of H08 model
H08 model
Meteorological data
Geographical data
River discharge
Reservoir storage
Reservoir release
Flooded area
i-RIC model?
Telemetry
Numerical weather prediction
Real time reanalysis Climate scenarios
New reservoir operation New reservoir?
Irrigation requirement
Real time simulation
Climate change
River planning Reservoir management
Water resources
management
Flood protection
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Impact of Climate ChangeMIROC-CMIP3
A2 (2070-2099)
Change temperature, precipitation, downward longwave radiation
0
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
4,500
5,000
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4
Dis
char
ge (
cms)
K10o-With Reservoir Operation (M12-Plus3)
mm23(CMIP3)-With Reservoir Operation (M12-Plus3)
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Summary
• An integrated global water resources model (H08) was developed consisting of six modules.(natural water cycle and human water activities).
• H08 is open source software(Fortran on linux).