RegCM sensitivity RegCM sensitivity simulations: Land use effects simulations: Land use effects

in Eastern Europein Eastern Europe

Group 15Group 15

Mladek, Onol, TomingasMladek, Onol, Tomingas

Domain ParametersDomain Parameters

Grid box: Grid box: 60x45 60x45

Resolution: Resolution: 50x50 km50x50 km

Central point: Central point: 44 N, 35 E44 N, 35 E

Nr. of vertical levels: Nr. of vertical levels: 1818

Data type: Data type: ECMWFECMWF

Map projection:Map projection: Lambert Conformal Lambert Conformal

Convection scheme: GrellConvection scheme: Grell

Closure scheme: Fritsch - ChappellClosure scheme: Fritsch - Chappell

Simulation period:Simulation period: May 1994 May 1994

SimulationsSimulations

Control run (no changes)Control run (no changes)

1: Small lakes replaced with 1: Small lakes replaced with crop/mixed farming crop/mixed farming

2: Black Sea replaced with 2: Black Sea replaced with crop/mixed crop/mixed

farmingfarming

3: Irrigation project in Turkey (GAP)3: Irrigation project in Turkey (GAP)

Control vs. AnalysisControl vs. Analysis

Control vs. CRUControl vs. CRU

Experiment 1Experiment 1

Experiment 2Experiment 2

Vert. Profiles EXP1, EXP2Vert. Profiles EXP1, EXP2

Experiment 3Experiment 3

Final RemarksFinal Remarks

Small change in land use can trigger quite Small change in land use can trigger quite big response in precipitation (noise)big response in precipitation (noise)

Without Black Sea precipitation increaseWithout Black Sea precipitation increase

(May 1994)(May 1994) 1 month run is not enough to capture 1 month run is not enough to capture

climateclimate

Thank You!Thank You!