Some Experiments in Running the RegCM over the Philippines
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Some Experiments in Some Experiments in Running the RegCM over Running the RegCM over
the Philippinesthe Philippines
Presented by:Presented by:
Raquel V. FranciscoRaquel V. FranciscoDepartment of Science and TechnologyDepartment of Science and Technology
Email: [email protected]: [email protected]
[email protected]@yahoo.com
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DOMAIN SIZE DOMAIN SIZE GRID RESOLUTIONGRID RESOLUTION
Limited resourcesLimited resources 3 runs3 runs
– 64x68 grids , 60km64x68 grids , 60km– 96x131grids, 60 km96x131grids, 60 km– 128x137, 30 km128x137, 30 km
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DOMAIN SIZE
TOPOGRAPHY
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GRID RESOLUTION: 55x55 km vs 30x30 km
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DOMAIN SIZE: RAINFALL AND WINDS
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DOMAIN SIZE: RAINFALL AND WINDS
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DOMAIN SIZE: RAINFALL AND WINDS
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DOMAIN SIZE: RAINFALL AND WINDS
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DOMAIN RESOLUTION: RAINFALL AND WINDS
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DOMAIN RESOLUTION: RAINFALL AND WINDS
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DOMAIN RESOLUTION: RAINFALL AND WINDS
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DOMAIN RESOLUTION: RAINFALL AND WINDS
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DOMAIN RESOLUTION: RAINFALL AND WINDS
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Moisture and winds
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Computer Time for 1 month simulation
• 48x65, 55 km : 5 hrs and 20 min
•96x131, 55 km : ~ 17 hrs
•128x137, 30 km : ~ 48 hrs
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FLOODS
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Chedeng (Linfa) leaves 37 dead, ... - May 31, 2003this story was taken from www.inq7.net
THE DEATH toll caused by tropical storm "Chedeng" rose to 37 as of Friday.
In Malolos City, two houses in the coastal village of Pamarawan were destroyed after a tornado hit the area.
At least eight Bulacan towns were still flooded Friday.
In Pangasinan, 39 towns and cities in the province were still under floodwater.
Chedeng continued to move farther away from the country but a new low pressure area was spotted 130 kms northwest of Zambales.
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Damage to farm and fisheries was stimated at 72.3 million pesos. Hard-hit areas were provinces in the Cordilleras and Central Luzon.
The water levels in the Ambuklao and Binga hydroelectric dams in Benguet were already near critical levels.
As of 7 a.m. Friday, the water level in Ambuklao was 747.75 meters, which is less than five meters below the maximum of 752 meters. The water level in Binga was 570.21 meters, also less than five meters below the maximum level of 575 meters.
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GCM
REGCM
Hydrological Model
FLOOD FORECASTING
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CONCLUSIONSCONCLUSIONS
There is a need for much There is a need for much improvement in the RegCM itself.improvement in the RegCM itself.– Reinitialize every 10 days?Reinitialize every 10 days?– More sensitivity studies on Convective More sensitivity studies on Convective
SchemesSchemes– Investigate PBL ( according to Qian, Investigate PBL ( according to Qian,
there is a large change in Ps from there is a large change in Ps from land to ocean)land to ocean)
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ACKNOWLEDGMENTSACKNOWLEDGMENTS
ICTP PEOPLE AND FACILITIESICTP PEOPLE AND FACILITIES Edna Juanillo for helping me gather Edna Juanillo for helping me gather the pictures and newsthe pictures and news
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