User Workshops


2nd GRAS SAF User Workshop Program

11 - 13 of June 2003, Helsingør, Denmark

Wednesday (June 11)
13.00 - 17.00 Registration
17.00 - 18.00 Session 1: Opening and Welcome
Chairman: Georg B. Larsen
30mStatus of the EUMETSAT Programmes
Alain Ratier (Head Tech Grp, EUMETSAT)
30mSAF Network Concept and Implementation Status
Juha-Pekka Luntama (GRAS Mission Scientist, EUMETSAT)
10mThe role of GPS atmosphere profiling in weather forecasting and atmosphere research
Per Høeg (Chairman, GRAS SAF Steering Grp, DMI)
10mThe GRAS SAF Project and Aim of the User Workshop
Georg B. Larsen (GRAS SAF PM, DMI)
18:20 - 19:30 Reception
19:30 Dinner

Thursday (June 12)
7:30 - 9:00 Breakfast
9:00 - 10:15Session 2: Radio Occultation Method
Chairman: Antonio Rius
25mIntroduction to Radio Occultations
Georg B. Larsen (GRAS SAF PM, DMI)
20mSimulation Studies on the Analysis of Radio Occultation Data
Andrea K. Steiner (U Graz)
15mRadio Occultation and Multipath Behavior
Kent B. Lauritsen (GRAS SAF, DMI)
15mUser Requirements for GRAS SAF Radio Occultation Products
Dave Offiler (GRAS SAF, MetO)
10:15 - 10:45 Coffee
10:45 - 12:00Session 3: Data Assimilation Technique
Chairman: Christian Marquardt
35mAn Introduction to Data Assimilation
Hans Huang (DMI)
20mAssimilation of GPS Radio Occultation Measurements at DAO
Paul Poli (DAO)
20m3D-Var Assimilation of CHAMP Measurements at the Met Office
Sean Healy (GRAS SAF, MetO)
12:00 - 13:30 Lunch
13:30 - 15:00Session 4: EUMETSAT/GRAS SAF Products
Chairman: Kent B. Lauritsen
30mGRAS Level 1 Processing and Data Products
Juha-Pekka Luntama (EUMETSAT)
30mGRAS SAF System, Products, and Archive
Frans Rubek, Martin B. Sørensen (GRAS SAF, DMI)
15mWMO BUFR format for NRT dissemination of RO data
Dave Offiler (GRAS SAF, MetO)
15mGRAS SAF Software Deliverables
Sean Healy, Dave Offiler, Christian Marquardt (GRAS SAF, MetO)
15:00 - 15:30 Discussion
15:30 - 16:00 Coffee
16:00 - 17:30Session 5: User Views on Products, Assimilation, and Climate Issues
Chairman: Dave Offiler
25m Assimilation of satellite data at ECMWF: prospects for use of radio-occultation measurements
Jean-Noël Thépaut (ECMWF)
15m Assimilation of Radio Occultation Data at DWD
Andreas Rhodin (DWD)
15m The Humidity Composite Product of the CM-SAF: A Possible User of the GRAS-SAF
Helga Nitsche (CM SAF, DWD)
15m On the direct use of GNSS RO refractivity measurements for climate monitoring
Henrik Vedel (DMI)
15m Exploitation of the High Resolution of GRAS Limb Soundings
Christian Marquardt (GRAS SAF, MetO)
17:30 - 18:00 Discussion
18:00 Dinner

Friday (June 13)
7:30 - 9:00 Breakfast
9:00 - 10:30Session 6: Products From Current and Future RO Missions
Chairman: Frans Rubek
30mRadio Occultation Data Analysis at the COSMIC Data Analysis & Archival Center (CDAAC)
Doug Hunt (UCAR)
30mUsing GPS Radio Occultation Data Operationally at NOAA: Plans and Issues
Jim Yoe (NOAA)
30m GPS Radio occultation with CHAMP: Operational data analysis and validation of vertical atmospheric profiles
Jens Wickert (GFZ)
10:30 - 11:00 Coffee
30mThe ACE+ mission: Exploring atmosphere and climate of the Earth using GPS, GALILEO, and LEO-LEO occultations
Per Høeg (DMI)
11:30 - 12:00 Discussion & End of User Workshop
12:00 Lunch

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