1. The GRAS SAF Project and Aim of the User Workshop
Georg Bergeton Larsen
GRAS SAF Project Manager
Atmosphere Ionosphere Research Division (AIR)
Danish Meteorological Institute (DMI)
Copenhagen

2. Outline of presentation
GRAS SAF Project overview and plans
Organisation of the project
Satellites and measurement system
Data products
Aim of User Workshop
Program
Summary

3. GRAS SAF overview and plans
GRAS SAF project started in 1999
Operational facility for atmosphere products from GRAS instrument on Metop (Launch planned in late 2005)
5 year developments
Partner Institutes
Danish Meteorological Institute (Host institute)
Met Office, UK
IEEC, Spain
Milestones
2000 Requirements review (User and science requirements)
2001 Requirements review (Design requirements)
2003 Mid-Term review (Critical design review)
2007 Operational products from GRAS SAF

4. GRAS SAF Organisation EUMETSAT Delegate Bodies SAF Network Manager
GRAS Meteorology SAF
Steering Group
Project Manager
G. B. Larsen, DMI
DMI
SAF coordinator
K. B. Lauritsen
IEEC
J. Aparicio
Met Office
D. Offiler

5. GRAS measurement system
Level 1b product generation and dissemination by the EPS CGS
Level 2 product generation and dissemination by the GRAS Meteorology SAF
GRAS GSN provides GPS POD products and ground based measurements
GRAS GSN network will contain 25 stations and will be based on existing networks
Product archiving and off-line user access via UMARF in EUMETSAT
Product archiving includes raw data, level 1b, level 2 and all GSN products

6. Data products from the GRAS SAF
Data products (Level 2) in Near Real Time
Refractivity profiles
Temperature profiles
Pressure profiles
Water vapor profiles
Surface pressure
Geographical location
Data products Offline
Reprocessed level 2 products
Bending angle (Level 1b)
1D-VAR pre-retrieval software (pre-existing)
3/4D-VAR assimilation software
Error covariance matrix
Pre-processing tools
DMI, IEEC
Met Office

7. Aim of User Workshop
Present current developments and plans of the GRAS SAF to Users
Get feedback on data products, software deliverables, distribution methods, etc.
Confirm User Requirements
Initiate local work at home institutes to use GRAS SAF products
Strengthen scientific collaboration

8. GRAS/Metop User Requirements

9. Program Opening & Welcome Thursday (June 12) Friday (June 13)
Radio Occultation Method
Data Assimilation Technique
EUMETSAT/GRAS SAF Products
User Views on Products, Assimilation, and Climate Issues
Friday (June 13)
Products From Current and Future RO Missions
Discussion & End of User Workshop

10. Summary GRAS SAF overview and plans Data products
Software products for data assimilation
Aim of User Workshop
User requirements
Program for the next days
Expected number of atmospheric profiles per day 600
Available to users from beginning of 2007
Practical information

11. Presentations & Proceedings
Presentations: Please hand over an electronic version (PowerPoint or similar) of your presentation to one of the GRAS SAF team members during the workshop. All presentations will be made available at the workshop web pages.
Proceedings: Please your paper to the DMI GRAS SAF team before july 1. We will perform a simple review (together with each author), and then send all papers to EUMETSAT, where an official proceedings booklet will be printed. The booklet will be sent to all participants around september/october.
Questions concerning proceedings: Contact Frans Rubek at