Transcript Examples of Simulations with the Latest Version of the RegCM

Examples of Simulations
with the Latest Version of
the RegCM
Jeremy Pal
A Little taste of the RegCM
Examples of Simulations
► Europe
► East Asia
 Simulation of the Monsoon
► West Africa
 Simulation of the Monsoon
 Sensitivity to the Convective Closure Assumption
► North America
 Prediction of the 1993 Flood and 1988 Drought
 Sensitivity to the Boundary Conditions
 Sensitivity to the Initial Conditions
► Atmospheric Initial Conditions
► Soil Moisture Initial Conditions
 Sensitivity to the Convective Closure Assumption
Examples of Simulations
► Europe
► East Asia
 Simulation of the Monsoon
► West Africa
 Simulation of the Monsoon
 Sensitivity to the Convective Closure Assumption
► North America
 Prediction of the 1993 Flood and 1988 Drought
 Sensitivity to the Boundary Conditions
 Sensitivity to the Initial Conditions
► Atmospheric Initial Conditions
► Soil Moisture Initial Conditions
 Sensitivity to the Convective Closure Assumption
Simulations over Europe
► Lambert
Conformal
Map Projection
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


88 North-South
115 East-West
18 Vertical Levels
60-km
► October 1994
August 1995
thru
Landuse and Elevation
DJF Precipitation: CRU Obs
JJA Precipitation: CRU Obs
DJF Precipitation: RegCM
JJA Precipitation: RegCM
DJF Temperature: CRU Obs
JJA Temperature: CRU Obs
DJF Temperature: RegCM
JJA Temperature: RegCM
Examples of Simulations
► Europe
► East Asia
 Simulation of the Monsoon
► West Africa
 Simulation of the Monsoon
 Sensitivity to the Convective Closure Assumption
► North America
 Prediction of the 1993 Flood and 1988 Drought
 Sensitivity to the Boundary Conditions
 Sensitivity to the Initial Conditions
► Atmospheric Initial Conditions
► Soil Moisture Initial Conditions
 Sensitivity to the Convective Closure Assumption
East Asia Monsoon
► Lambert
Confomal
Map Projection
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


80 North-South
103 East-West
18 Vertical Levels
60-km
► June
1994 thru
August 1995
Landuse and Elevation
DJF Precip
CRU Obs
DJF Precip
RegCM
JJA Precip
CRU Obs
JJA Precip
RegCM
Precipitation over East Asia:
Sept 1994 thru August 1995
CRU Obs
RegCM
Examples of Simulations
► Europe
► East Asia
 Simulation of the Monsoon
► West Africa
 Simulation of the Monsoon
 Sensitivity to the Convective Closure Assumption
► North America
 Prediction of the 1993 Flood and 1988 Drought
 Sensitivity to the Boundary Conditions
 Sensitivity to the Initial Conditions
► Atmospheric Initial Conditions
► Soil Moisture Initial Conditions
 Sensitivity to the Convective Closure Assumption
West African Monsoon
► Mercator
Map
Projection
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


► 25
80 North-South
121 East-West
18 Vertical Levels
55-km
May thru 1
September 1996
Landuse and Elevation
West African
Monsoon:
JJA 1996
Precipitation
RegCM-AS74
CRU Obs
RegCM-FC80
West African
Monsoon:
JJA 1996
Temperature
RegCM-AS74
CRU Obs
RegCM-FC80
Examples of Simulations
► Europe
► East Asia
 Simulation of the Monsoon
► West Africa
 Simulation of the Monsoon
 Sensitivity to the Convective Closure Assumption
► North America
 Prediction of the 1993 Flood and 1988 Drought
 Sensitivity to the Boundary Conditions
 Sensitivity to the Initial Conditions
► Atmospheric Initial Conditions
► Soil Moisture Initial Conditions
 Sensitivity to the Convective Closure Assumption
North American Flood and Drought
► Rotated
Mercator
Map Projection




► 25
80 North-South
129 East-West
18 Vertical Levels
56-km
June thru 1
August 1988 and
1993
Landuse and Elevation
Prediction of Flood and Drought
► Importance….
 Water resources
management
 Cropping strategies
 Saving human lives
 Saving $$$
 Fire prevention
1988 Great North American
Drought
Driest & warmest since 1936
10,000 deaths
$30 billion in Agricultural Damage
1993 Midwest Flood
Record high rainfall
Thousands homeless; 48 deaths
$15-20 billion in Damage
Prediction of Flood and Drought
June 1988 CRU Observations July 1993 CRU Observations
Driest & warmest since 1936
Record high rainfall
10,000 deaths
Thousands homeless; 48 deaths
$30 billion in Agricultural Damage $15-20 billion in Damage
June 1988: CRU Obs
July 1993: CRU Obs
June 1988: RegCM
July 1993: RegCM
Sensitivity to
Convective Closure
CRU Observations
RegCM: ECMWF-FC80
RegCM: ECMWF-AS74
Sensitivity to
Atmospheric Initial
Conditions
CRU Observations
RegCM: ECMWF-IC+1
RegCM: ECMWF-IC+0
Sensitivity to Soil
Moisture Initial
Conditions:
July 1993
Precipitation
CRU Observations
RegCM: WET SM (East N.A.)
RegCM: NORM SM
Sensitivity to Soil
Moisture Initial
Conditions:
July 1993
Temperature
CRU Observations
RegCM: WET SM (East N.A.)
RegCM: NORM SM
Sensitivity to Soil
Moisture Initial
Conditions:
June 1988
Precipitation
RegCM: DRY SM
CRU Observations
RegCM: NORM SM
Sensitivity to Soil
Moisture Initial
Conditions:
June 1988
Temperature
RegCM: DRY SM
CRU Observations
RegCM: NORM SM
Sensitivity to
Boundary
Conditions
CRU Observations
RegCM: NCEP
RegCM: ECMWF