DUP-TEMISWP2.6 Regional Aerosol

Gerrit de Leeuw, FMI/UHEL/TNO

Pekka Kolmonen, FMI

Robin Schoemaker, TNO

TEMIS User workshop, Frascati, 8-9 October 2007

Objective

Retrieval, implementation and validation of the regional tropospheric product for aerosols

TEMIS User workshop, Frascati, 8-9 October 2007

Workplan

WP 2.6 Regional aerosol

Activity: Extending of the ATSR-aerosol service:

Demonstration of a data delivery

service for the Po-Valley.

Time period: January 2005 – December 2007

Responsible TNO-DSS

TEMIS User workshop, Frascati, 8-9 October 2007

Workplan

WP 2.6 Regional aerosol

Activity Extending of the ATSR-aerosol service:

Demonstration of a data delivery

service for the Po-Valley.

Time period January 2005 – December 2007

Responsible TNO-DSS TNO-DSS FMI

TEMIS User workshop, Frascati, 8-9 October 2007

Developments (1)• PI left TNO DSS per 1 January 2007 for FMI/UHEL

• Agreement between TNO and FMI:

• FMI takes over the responsibility for delivering a demonstration product

• TNO trains 2 people from Helsinki to use the AATSR aerosol retrieval algorithms (Jan 2007)

• TNO provides source codes and support

• AATSR aerosol retrieval algorithms installed in Helsinki:

• FMI: development & services

• Univ. of Helsinki: development and scientific applications

• Close cooperation between FMI & UHEL

• Currently 10 people working on aerosol retrieval (AATSR & OMI)

TEMIS User workshop, Frascati, 8-9 October 2007

Developments (2)• Familarization (new people)

• Testing (using 2003 over Europe as test set):

• Bugs

• Cloud screening using forest fires Iberian Peninsula 2003

• Low AOD and low SZA over Finland

• Development/Improvement:

• Improved cloud screening

• Aerosol types & mixtures

• Bright surfaces

• Statistical methods to improve reliability and quality

TEMIS User workshop, Frascati, 8-9 October 2007

10 x 10 km21 x 1 km2 10 x 10 km2

10 x 10 km2

High AOD near cloud edges

•AOD enhanced near cloud edges due to RH gradients •For use in larger pixels, these are not representative, in particular for composite plots over longer time•High st. dev. in, e.g. 10x10 km2 pixels•Remove to retain uncontaminated data

TEMIS User workshop, Frascati, 8-9 October 2007

Developments (3)

• Application: • PO Valley (TEMIS) (user will be contacted when service

demonstration ready• Netherlands (NL project Satlink, users: TNO & MNP)• Europe (NL project HIRAM, users: TNO & MNP)• Effects natural aerosol (nucleation) on AOD?• AQ in Finland due to forest fires, transport from Russia• Aerosol over China (AMFIC)• Global aerosol (EUCAARI, GEOMON, MACC)

• Validation• AERONET• PFR (WMO)• Campaigns

TEMIS User workshop, Frascati, 8-9 October 2007

TEMIS progress: retrieval

Spatial distribution of AOD (670), 17 April 2003

TEMIS User workshop, Frascati, 8-9 October 2007

TEMIS progress: Validation vs AERONET

Ispra, 12 June 2003 Venice, 2003

TEMIS User workshop, Frascati, 8-9 October 2007

TEMIS Progress: NRT• Data availability:

• ftp from Rolling Archive: automated using script

• RAID: data stored on 2 HD

• Regular update with new data

• Example: AOD(670), Po Valley, 6 August 2007

TEMIS User workshop, Frascati, 8-9 October 2007

TEMIS Progress: NRT• Automated selection area of interest (Po valley)

• Inclusion data processing in script

• QC: manual (later automated?)

• Comparison with AERONET (Ispra, Venice)

• Spatial variation and statistics

• Data presentation on website

• FMI, link from TEMIS website

• TEMIS website – examples

• Data description and background info

• User feedback:

• Data presentation

• Data use and use-ability

TEMIS User workshop, Frascati, 8-9 October 2007

TEMIS Progress• Improvements:

• Aerosol models tuned to PO valley (a priori)

• Mixing ratio

• Cloud screening

• Extension to other regions:

• Europe for TNO & NILU (EMEP)

• Finland / Russia forest fires

• Contact with NERI (DK)

TEMIS User workshop, Frascati, 8-9 October 2007

Time ScheduleNRT implementation and demonstration: October - November 2007

User interaction: November 2007

New User – other area (Finland?)? End of 2007

Improvements:

Aerosol models End of 2007

Cloud screening tbd

TEMIS User workshop, Frascati, 8-9 October 2007

UsersTEMIS user:

• PO Valley (TEMIS) (user will be contacted when service demonstration ready

Non-TEMIS users:

• Europe (NL project HIRAM, users: TNO & MNP)

• Netherlands (NL project Satlink, users: TNO & MNP)

Work in progress:

• Effects natural aerosol (nucleation) on AOD?

• AQ in Finland due to forest fires, transport from Russia

• Aerosol over China (AMFIC)

• Global aerosol (EUCAARI, GEOMON, MACC)

Potential future users: NERI (DK), MACC, MEGACITIES and several TEMIS workshop participants that expressed their interst on Day 1