Development of air quality models in Chile

First Air Quality Workshop for the GURME Latin America project, Santiago de Chile, 2003

by

Rainer Schmitz

Department of GeophysicsUniversity of Chile

Research Center Karlsruhe IMK-IFU, Germany

Use of air quality models in Chile

Institutions and their respective models: CENMA (Casmassi)University of Santiago (Neural Networks)Chilean Weather Office (MM5)CONAMA/CENMA (AIRVIRO, HIRLAM/MATCH)Catholic University (UAM, CAMx, CALMET)University of Chile

Department of Geophysics (CADM, MM5, MM5/Chemistry (MCCM), WRF)

Center for Mathematical Modelling (HIRLAM/MATCH)Others (KAMM/DRAIS)

First Air Quality Workshop for the GURME Latin America project, Santiago de Chile, 2003

Santiago de Chile

40km

First Air Quality Workshop for the GURME Latin America project, Santiago de Chile, 2003

Santiago de ChileTypical synoptic situations

Winter Summer20S

50SGarreaud et al., 2002

First Air Quality Workshop for the GURME Latin America project, Santiago de Chile, 2003

Problems for winter air quality forecast

Emissions Surface winds at 21 hrs (LT)

PM10 concentrations between June 20-22, 2000

First Air Quality Workshop for the GURME Latin America project, Santiago de Chile, 2003

Actual Forecast

Diagnostic air quality data

Diagnostic meteo-rology data

Subjective meteo-rological forecast

Multiple regression analysis

Neural network

Forecast

Forecast

First Air Quality Workshop for the GURME Latin America project, Santiago de Chile, 2003

Model developmentPM10

Concentrations in Pudahuel and Parque O'Higgins

Mixing layer height according to MM5 forecast

First Air Quality Workshop for the GURME Latin America project, Santiago de Chile, 2003

Diagnostic air quality data

Diagnostic meteo-rology data

Prognostic meteoro-logical data from NWP

Multiple regression analysis

Neural network

Forecast

Forecast

Model developmentPM10

First Air Quality Workshop for the GURME Latin America project, Santiago de Chile, 2003

Dynamical models with forecasting potential

CADM (Chilean Air pollution Dispersion Model)Off-line Meterology: MM5Gas phase: RADM2Aerosols: MADE/SORGAM

MM5/Chemistry (MCCM)On-lineMeteorology: MM5Gas Phase: RADM2Aerosols: MADE/SORGAM

WRF/ChemistryOn-lineMeteorology: WRFGas Phase: RADM2Aerosols: MADE/SORGAM

First Air Quality Workshop for the GURME Latin America project, Santiago de Chile, 2003

CADM (CO)

First Air Quality Workshop for the GURME Latin America project, Santiago de Chile, 2003

CADM (Ozone)

g/m3

g/m3

First Air Quality Workshop for the GURME Latin America project, Santiago de Chile, 2003

Las Condes

Seminario

ObservationSimulation

Problems for summer air quality forecast

First Air Quality Workshop for the GURME Latin America project, Santiago de Chile, 2003

•Emission inventories

•Model validation

WRF/Chemistry

First Air Quality Workshop for the GURME Latin America project, Santiago de Chile, 2003

PM10 PM2.5

(from NOAA/FSL)

MM5/Chemistry

Ozone Aerosols

First Air Quality Workshop for the GURME Latin America project, Santiago de Chile, 2003

Computational infrastructure

• Linux Cluster – 10 nodes with dual Pentium 4 processors– SCALI interconnect

• Digital alpha 4100

First Air Quality Workshop for the GURME Latin America project, Santiago de Chile, 2003

Resources

• Economic resources– Present: Funding from CONAMA– Future: Research projects, private sources

• Human resources– Master students

First Air Quality Workshop for the GURME Latin America project, Santiago de Chile, 2003