GEOS-CHEM Near-Real Time Full-Chemistry SimulationsGEOS-CHEM Near-Real Time Full-Chemistry Simulations

S. Turquety, D. J. Jacob, R. M. Yantosca, R. C. Hudman, L. JaeglS. Turquety, D. J. Jacob, R. M. Yantosca, R. C. Hudman, L. Jaegléé, S. Wu, S. Wu

Objectives :

1. ICARTT campaign summer 2004:

• Support flight planning: monitor any large deviations between the aircraft observations and our understanding of ozone and aerosol processes that may cause alteration of flight plans,

• Generate a set of preliminary findings

2. Support satellite validation: Used at JPL by Qinbin Li for first analysis of TES and MLS data

3. Comparison with in situ measurements: Used by Dan Jaffe’s group in University Washington

4. More?....

Solène Turquety – GEOS-CHEM Meeting April 4, 2005

Daily full chemistry simulations v6-02-03 :

2x2.5 horizontal resolution, 30 levels, global

based on GEOS-4 1st look met fields

daily-updated biomass burning emissions for North America based on MODIS hotspots

daily plane flight diagnostic

(1st included for ICARTT)

2-D “column” timeseries for tropospheric CO, O3, NO2, HCHO for 1st look, direct comparison with satellites

Runs semi-automated using perl scripts developed by Bob Yantosca

GEOS-CHEM NRT full-chemistry simulationsGEOS-CHEM NRT full-chemistry simulations

INTEX-NA Flight tracks 1/07-15/08

MODIS hotspots: assume 100ha/hotspot

Emissions/ unit area (Yevich and Logan) Emissions (Molec/cm2/s)

60 %

40 %

3km

6km

PBL

Vertical distributionFok-Yan Leung

x

Solène Turquety – GEOS-CHEM Meeting April 4, 2005

Future improvements:

New version of GEOS-CHEM (v7)

Cf. presentation R. M. Yantosca

NEI 1999 for North American anthropogenic emissions (now in standard version of the code)

Cf. presentation R. Hudman

Improve parameterization of lightning

(adapt it to GEOS-4)

Cf. presentation R. Hudman

Improve biomass burning emissions (emissions / unit area)

Other ???

GEOS-CHEM NRT full-chemistry simulationsGEOS-CHEM NRT full-chemistry simulations

Solène Turquety – GEOS-CHEM Meeting April 4, 2005

0.00 2.50.00 8.3 tons CO / ha burned

Including peat burning

NRT == available with delay of ~ 2-3 days

Output data archived for 1 month at Harvard

(ICARTT period July-August 2004, and September 2004 still available):

/as2/priv/ICARTT/

Daily means all GEOS-CHEM tracers, met. data, sources…

3h timeseries 3D:

CO, O3, NOx, PAN, PMN, HNO3, ACET, sulfate, AOD

3h timeseries 2D:

tropospheric columns CO, O3, HCHO, NO2

Along flighttrack for ICARTT when specified: • all GEOS–CHEM chemical tracers• absolute humidity• Temperature• wind speed• NO, OH, HO2• JNO2, JO1D• Aerosol optical depths

O3 P/L rates

Restart files

GEOS-CHEM NRT full-chemistry simulationsGEOS-CHEM NRT full-chemistry simulations

Solène Turquety – GEOS-CHEM Meeting April 4, 2005

GEOS-CHEM NRT full-chemistry simulationsGEOS-CHEM NRT full-chemistry simulationsInteractive online visualization site by Lyatt Jaeglé, U. Washington

http://coco.atmos.washington.edu/cgi-bin/ion-p?page=geos_intexa.ion

Solène Turquety – GEOS-CHEM Meeting April 4, 2005

GEOS-CHEM NRT full-chemistry simulations – ICARTT GEOS-CHEM NRT full-chemistry simulations – ICARTT

Biomass burning plume sampled by the DC-8 on flight # 9 (July 18th)

GEOS-CHEM NRTObs. G. W. Sachse

MOPITT July 17-19, 2004 GEOS-CHEM NRT x MOPITT AK

Solène Turquety – GEOS-CHEM Meeting April 4, 2005

GEOS-CHEM NRT full-chemistry simulations – TES GEOS-CHEM NRT full-chemistry simulations – TES

20 Sept. 2004

Solène Turquety – GEOS-CHEM Meeting April 4, 2005

Qinbin Li, JPL, AGU 2004

More on the NRT : presentations using the NRT simulations:

Meteorological indices for transpacific transport of Asian pollution, Qing Liang, U. Washington

Export of North American ozone and NOy constrained from ICARTT observations, Rynda Hudman, Harvard

Variability of HCHO during ICARTT : implications for GOME/OMI interpretation, Dylan Millet, Harvard

Output data archived for 1 month at Harvard

(ICARTT period July-August 2004, and September 2004 still available):

/as2/priv/ICARTT/

...

GEOS-CHEM NRT full-chemistry simulationsGEOS-CHEM NRT full-chemistry simulations