TROPOSAT

The Use and Usability of Satellite Data for Tropospheric Research

Gothenberg Workshop

 

Report from the second workshop prepared by Peter Borrell

 

TROPOSAT
The use and usability of satellite data for tropospheric research

Second Workshop

The second TROPOSAT workshop was held at
the Swedish Exhibition and Congress Centre, Göteborg
on Wednesday and Thursday, 18th and 19th October 2000

Report

Reports and News

1. Welcome. The subproject coordinator, Ulrich Platt welcomed the 41 people attending to the workshop. Apologies had been received from 12 principal investigators (PIs). There was no news of the 5 remaining PIs. A list of those attending is attached.

2. Current progress. The coordinator then gave a brief overview of the subproject and the progress to date.

a. The proposal had been accepted by the EUROTRAC-2 Scientific Steering Committee (SSC) and endorsed by the International Executive Committee (IEC) and by members of the Environmental Assessment Group (EAG). The evaluation had been very positive (see attached sheets B, C & D). The proposal was being modified to accommodate some helpful suggestions from the various committees and it was hoped to send the project description to the ISS before the end of October.

* The coordinator thanked all PIs for responding so quickly after the Heidelberg workshop and so facilitating the timely submission of the proposal. He also offered apologies to those who were omitted in the initial round. It is still possible to join TROPOSAT.

b. ESA/ESRIN had agreed to provide some financial support for the co-ordination of TROPOSAT. The grant will be made to P&PMB Consultants in order to support the participation of Peter Borrell as Deputy Coordinator. The conditions of the grant (see attached sheet E) required the provision of certain information by the subproject and he hoped that PIs would respond willingly when requested.

* The workshop thanked ESA/ESRIN for their generous support for the co-ordination of TROPOSAT.

c. The Deputy Coordinator, John Burrows emphasised the excellent start that had been made. He reported that, during the summer, a proposal had bee submitted for a future geostationary satellite GEOSCIA. Since the satellite is intended to deliver time-resolved data for the troposphere it could be regarded as the "TROPOSAT satellite"!

d. The Scientific Secretary of EUROTRAC-2, Markus Reuther gave a short presentation on the structure of EUROTRAC-2 and the role of the International Scientific Secretariat (ISS). He offered his congratulations to TROPOSAT on the acceptance of the proposal pointing out that it would enliven the second half of the project. He also explained some of the points raised by the committees about the proposal.

Scientific Presentations

Most of the workshop was taken up with short presentations by the principal investigators. Each PI or representative gave a five minute overview which was followed by some comments or criticisms.

3. Task Group 1. Andreas Richter and Thomas Wagner who introduced task group 1 said that a good start had been made, most people were funded and already had some first results. Eleven presentations were given; one project was not reported on. Details of the presenters and titles are given on sheet A.

Task Group Meetings, Dinner and Steering Group Meeting. The workshop was adjourned after the task group 1 presentations for meetings of the task groups, for an evening meal together at the Bamboo restaurant and for a steering group meeting. The workshop re-convened on Thursday morning.

4. Task Group 2. Hans Slager, in the absence of Martin Dameris, introduced task group 2. Eleven presentations were given; two projects were not reported on. Details of the presenters and titles are given on sheet A.

5. Task Group 3. Paul Monks vigorously introduced the work of task group 3, by pointing out that nearly all PIs were trying to combine satellite with other measurements and would therefore be able to contribute to the work of task group 3. Five presentations were given; four projects were not reported on. Details of the presenters and titles are given on sheet A.

6. Task Group 4. Henk Eskes introduced task group 4, in place of Hennie Kelder, by giving an overview of the status and funding. Most people had some funds and were already active. He too pointed out that most PIs were involved in comparing satellite data with those from other sources and so were engaged in validation and could contribute to the work of group 4. Seven presentations were given; one project was not reported on. Details of the presenters and titles are given on sheet A.

Decisions and Actions

7. Underpinning activities

a. Data assimilation techniques. The steering group is exploring how best to approach this job.

b. Specifications for future satellite instrumentation. Albert Goede would be organising this task during the course of the project. The matter would be put on the agenda for the next meeting when it was hoped that a short draft paper would be available.

8. Availability of tropospheric data to TROPOSAT and the community. The groups participating in TROPOSAT require data products and the problem is, how best to make these available, considering the preliminary nature of the some of the data, and the fact that much of it represents considerable scientific effort on the part of the groups which have it. It was emphasised however that the providing groups are keen to make the data available and that TROPOSAT will only succeed if there is a free interchange between users and providers. The following measures would be adopted for the moment.

a. Data should be obtained at first through bilateral agreements between the user and provider. No database will be set up at present. Potential users are encouraged to approach those who have data.

b. A data protocol should be presented to the next meeting for approval (action: Peter Borrell).

c. A list of data available should be put on the web page (action: Peter Borrell).

9. Annual reports for 2000. An annual report will be required from each PI, in the form required by the ISS, before January 15th 2001. The report should be sent to the task group leader/s and also to Peter Borrell. (action all PIs)

Where work contributes to more than one task group, the report should also be sent to the other task group leader.

The leaders will write an overview of the task group's work and these reports will be included in an account of the subproject by the coordinators. It is intended to have the complete report available for the next workshop and for submission to the ISS before the end of March 2000. (action: task group leaders, coordinators)

A reminder will be sent to all PIs in December (action: Peter Borrell)

10. Meetings

a. The next workshop will take place at ESA/ESRIN, Frascati, near Rome (subject to negotiation with Claus Zehner) on Thursday and Friday 5th & 6th April 2001 (action Peter Borrell).

b. It is intended to present the TROPOSAT poster at the next EGS meeting in Nice from the 25th to the 30th March 2001 (action Peter Borrell). It is hoped that some PIs will also present TROPOSAT work there. The deadline for abstracts is 1st of December 2000.

11. Web Page. A web page was being prepared giving full details about the project. It is intended to make links to the pages of the PIs whom, it is hoped will all have their own TROPOSAT page. A template page will be available (action Peter Borrell).

12. Summing up & closing remarks. Two particular points were made in the closing remarks by Ulrich Platt.

a. Task Group Interactions. While the division of TROPOSAT into task groups is organisationally helpful, extensive interaction between the task groups is essential to the success of the project.

b. Two-way exchange between modellers and experimentalists. The exchange of data between the TROPOSAT groups and with the community should constitute a genuine two-way exchange of ideas, with modellers, for example, not only receiving data but also providing ideas and suggestions on what data is needed and the most convenient form for them. One point that had been made several times at the meeting was that people should consider modelling the data that came from satellites (spectra, column densities etc.) as well as expecting to receive concentration profiles that are the present first results from the models.

Thanks. The subproject coordinator closed the meeting at 13.00 by thanking everyone for their efforts and contributions. He wished to record the meeting particular thanks to:

a. Bo Galle for arranging such a pleasant venue for the dinner;

b. Peter Borrell for arranging the meeting;

c. Maurizio Fea, Gianna Calibresi and Claus Zehner (ESA/ESRIN) for providing the facilities within the framework of their symposium and also for providing funds to hire a room at such short notice.

Peter Borrell, Deputy Coordinator

September 2000

 

TROPOSAT Sheet A: Scientific Presentations

Task Group 1. Andreas Richter and Thomas Wagner who introduced task group 1 said that a good start had been made, most people were funded and already had some first results. Presentations were given by the following PIs.

Albert P.H. Goede

Retrieval of Carbon Monoxide and Methane Columns from SCIAMACHY Data and the Retrieval of Ozone Profiles from GOME and SCIAMACHY Data

Hank Eskes

for Hennie Kelder

Retrieval and Data Assimilation Algorithm Development for Tropospheric Ozone and NO2 from GOME and SCIAMACHY

Johannes Keller

Retrieval of Tropospheric Aerosol Properties from Space

Andreas Richter

Quantification of Tropospheric Measurements from Nadir Viewing UV/vis Instruments

Martin Riese

Retrieval of Upper Tropospheric H2O, HNO3, and CFC-11 Distributions from Infrared Limb Observations and Synergetic Use of the Results

M. van Roozendael

Retrieval of Tropospheric BrO and NO2 from Nadir UV-visible Observations, using Residual Techniques

Thomas von Klarmann

for Gabriele P. Stiller

Study of the Retrievability of Upper Tropospheric Species and Parameters from MIPAS/ENVISAT Data

Jean Verdebout

Development of Satellite-derived Information on Tropospheric Actinic Flux and Aerosol Particulate Matter

Thomas Wagner

Case Studies for the Investigation of Cloud Sensitive Parameters as Measured by GOME

Mark Weber

Ozone Profile Retrieval from Broadband Nadir UV/VIS Satellite Spectra: How accurate is the Tropospheric Profile?

Renata de Winter-Sorkina

Assessment of the Global Distribution of Tropospheric OH Radicals
from GOME and SCIAMACHY Observations

No report was given on the following project.

Arnolds Ubelis

Ground Validation Station for Satellite-based Atmospheric Sensor Instruments GOME and SCIMACHY

Task Group 2. Hans Slager, in the absence of Martin Dameris, introduced task group 1. Presentations were given by the following PIs.

 

Task group 2: Use of satellite data to understand atmospheric processes.

Hans Slager

for Martin Dameris

Validation of a Fully Coupled Chemistry-Climate Model

Hans Schlager

Export of Pollutants over Europe

Dominique P. Jeker

Tracing Atmospheric Pollution with Satellite Measurements

Dominique P. Jeker

who replaces Jan Forrer

The use of Space-borne and Ground-based Measurements within the Swiss Air Pollution Monitoring System to Determine a Spatial Distribution of Air Pollutants by Combining Space-borne and Ground-based Observations

Garry Hayman

Feasibility of Using ENVISAT Earth Observation Data as a Component of Air Quality Management (ENVIAQM)

Gary Hayman

for Wilfried Winiwarter

Use of emission inventories to validate satellite-derived atmospheric concentrations

M. van Roozendael

for Jean-C. Lambert

Global and Regional Climatologies of Stratospheric and Tropospheric NO2 and BrO based on the Integrated Exploitation of Satellite, Ground-based, Balloon and 3-D Model Data

Rolf von Kuhlmann

for Mark G. Lawrence

Global Photochemical Model Evaluation using GOME Tropospheric Column Data

Jean-François Müller

Inverse Modelling of Satellite Data using the IMAGES model

Ulrich Platt

Construction and Analysis of Image Sequences of Atmospheric Trace Gases

Nicole Spichtinger

for Andreas Stohl

Determination of Sources of Tropospheric Trace Gases by combining Satellite Measurements with Inverse Transport Modelling

No reports were given for the following projects.

Rainer Friedrich

Comparison of NO2 Emissions derived from Satellite Measurements with Bottom-up Calculated Emissions in Europe

Franz Rohrer

Use of ENVISAT Measurements for the Examination of
the Nitrogen Oxide Budget in the Upper Troposphere

Task Group 3. Paul Monks vigorously introduced the work of task group 3, by pointing out that nearly all PIs were trying to combine satellite with other measurements and would therefore be able to contribute to the work of task group 3.

Presentations were given by the following PIs.

John P. Burrows

Synergistic Use of Ground-based, GOME and SCIAMACHY Tropospheric Retrievals

M. van Roozendael

for Martine De Mazière

Retrieval of Tropospheric Information from Ground-based FTIR Observations, supported by Synergistic Exploitation of Various Ground-based and Space-borne Measurement Techniques and Data.

Gary Corlett

for Paul S. Monks

The Development of Multi-platform Methods for Derivation of Tropospheric Composition from Space

Ralf Sussmann

Satellite plus Ground-Based FTIR Measurements for Tropospheric Studies: Towards an Integrated Global Measurement System (IGMS) and an Improved Validation Strategy

Julian Wilson

Assimilation of Satellite and Ground-based Observations of Reactive Trace Gases and Aerosols over Europe in Chemical Transport Model

No reports were given on the following projects.

C.A.M. Brenninkmeijer

Comparing CARIBIC and Satellite Data (COCASAT)

Alain Marenco

Comparison between Various Satellite Sensors and MOZAIC Data

A. R. MacKenzie

Scientific Applications of ENVISAT Atmospheric Data within the APE Research Community.

Herman G.J. Smit

Control Mechanisms of Water Vapour in the UT

 

Task Group 4. Henk Eskes introduced task group4 in place of Hennie Kelder by giving an overview of the status and funding. Most people had some funds and were already active. He too pointed out that most PIs were involved in comparing satellite data with those from other sources and so were engaged in validation and could contribute to the work of group 4.

Presentations were given by the following PIs.

Anna Greta-Straume

for Ilse Aben

Validation of Methane and Carbon Monoxide Data from SCIAMACHY

D.W. Arlander

Validation from Long-term Tropospheric Measurements for Use and Usability of Satellite Data

D.W. Arlander

Validation Assistance from the NILU/NADIR Data Base

Cornelis Blom

Validation of Tropospheric Satellite Data Products using in-situ and Remote-sensing Observations from the High-altitude Platform Geophysica

Bo Galle

Satellite Validation using Ground-based Spectroscopic Techniques.

Renske Timmermans for Hennie Kelder

Co-ordination of the Validation Activities for SCIAMACHY

R. Zander

Monitoring of the Variability and Long-term Evolution of Tropospheric Constituents by Infrared Solar Absorption Spectrometry at the Jungfraujoch, Switzerland

No report was given on the following project.

Alexander Meister

Validation of a Space-borne Sensor for the Investigation of Dust Storms over the Mediterranean and the Atlantic Ocean using an Airborne LIDAR System

 

 

 


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