trieste, october 2008, lorenzo tomassini, mpi-m research directions in regional climate modeling of...

Trieste, October 2008, Lorenzo Tomassini, MPI-M

Research directions in regional climate modeling of the Mediterranean at MPI-M

Daniela Jacob, Alberto Elizalde,

and Lorenzo Tomassini

Max Planck Institute for Meteorology, Hamburg


Overview

1. Hydrological cycle including extremes

2. Atmospheric circulation

3. Regional feedbacks

Three major research areas:


Overview

Hydrological cycle in the Mediterranean:

A coupled atmosphere-ocean regional climate modelDroughtsExtreme precipitation events


Coupled regional model

Ph.D. project of Alberto Elizalde:

Working model for Mediterranean climate Assessment of hydrological cycle Better understanding of processes involved Reproduce ocean-atmosphere feedbacks Analyze the impact of the coupled system on climate

simulations Perform climate change simulations


Coupled regional model

AtmosphereModel (REMO)

HydrologicalModel (HD model)

Coupler (OASIS 3)

OceanModel (MPI-OM)


Droughts

Max no. of cdd


Droughts

No. of dry periods

(cdd > 5 days)


Droughts

Drought index dsi3 for A1B scenario and 2071-2100

(two arbitrary grid boxes: nord and south)


Extreme precipitation events

Increase in heavy rainfall for

a) Observations

b) REMO control I

c) REMO control II

d) REMO B1 scenario

e) REMO A1B scenario

f) REMO A2 scenario



Result of t-test for:

a) Observations

b) REMO control I

c) REMO control II

d) REMO B1 scenario

e) REMO A1B scenario

f) REMO A2 scenario



FP7 project „SaveLand“:

Extension of this work to several European regionsMediterranean as one focus areaSimulations with 10km resolutionAnalysis of physical causes and processesStatistical analysis of trends, variability, and spatial

dependence

Start: 2009


Overview

Atmospheric circulation:

Cyclone tracksMedicanesMoisture transport


Cyclone tracks


Medicanes

Collaboration with M. Gaertner et al. (GRL, 34, 2007)


Moisture transport

(Ch. Moseley)


Overview

Regional feedback processes:

Effect of aerosols on clouds and precipitationSoil moisture feedback


Aerosols

Ph.D. project of Joni-Pekka Pietikainen:

Implementation of the ECHAM5 cloud and aerosol physics to the regional model REMO

Update the release version of REMO to include aerosols and better cloud scheme

Study the effects of aerosols on clouds and precipitation Study heavy precipitation events

Improve our understanding of cloud-aerosol processes using the regional model with high resolution


Soil moisture feedback

Preindustrial control run with REMO: 300 years

JJA:


Soil moisture feedback


Thank you very much for your attention!

trieste, october 2008, lorenzo tomassini, mpi-m research directions in regional climate modeling of...

Documents

cdd slide

moseley slide

south slide

hamburg slide

days slide

ocean model mpiom slide

cyclone tracks slide

regional model remo