1. Highlights from the 4th COSMIC Data Users Workshop

2. Workshop Numbers ~130 Participants 60 Oral Presentations
13 Future Missions Presentations
16 Poster Presentations
17 Student Posters
~80 attended the Banquet at Laudisio
Presentations will be available on website soon
Special Thank You to: Sara Frank-Bristow, Karl Hudnut, Doug Hunt, Kim Prinzi-Kimbro, Bill Kuo, Ingrid Moore, Dawn Williams, and JOSS

3. Science Highlights Weather Climate and Validation
Cucurull at NCEP showed 8 hours of improvement in Weather forecast skill at day 4 and over 15 hours in day 7
Von Engeln, At ECMWF, RO data #5 in analysis of 1-day forecast error reduction at ECMWF
Some impact with regional model DA with RO?
Randel showed evidence of ubiquitous tropopause inversion layer – upper level tropospheric moisture in polar regions
Taylor used RO to evaluate polar SSW event – questions remain about reaction of tropical tropopause
Seidel showed that PBL difficult to define
Fei Xie (and Jie) presented results on diurnal variability of PBL
Kursinski used to RO to look into ENSO monitoring (prediction?)
Gravity wave studies and estimates of propagation direction
Sergey discussed structural uncertainty in LT
Metop/GRAS has tracking problems in LT
Climate and Validation
Ho demonstrated mission independence and calibration potential (other instruments) of RO data
Pirscher evaluated bending angle noise results from different missions, CHAMP
Steiner et al, presented climate trends with CDAAC RO that were consistent with Radiosondes, climate models
Marquardt showed that Metop/GRAS has lower noise at high altitudes
Climatologies of tropopause, PBL

4. Science Highlights Ionosphere and Space Weather
CDAAC presented possible ionospheric response to SSW event
Yue presented Abel inversion errors in ionosphere
Alan Burns from HAO/NCAR reported that the WSA phenomena can happens in a vast area near dusk in summer using COSMIC NmF2 and hmF2 and can be explained by the conjugate effects
Charles Lin from NCKU reported mid-latitude summer nighttime anomaly (MSNA) of the ionosphere by COSMIC EDPs
Tiger Liu reported the plasma depletion bay by COSMIC EDPs
Scintillation studies by Strauss, Gouthu
Sporadic E layer climatology with COSMIC
Nicholas Pedatella from CU used COSMIC EDPs and TIP data to study the ionosphere disturbance during 15 Dec 2006 geomagnetic storm and found a long lasting positive storm effect in ionosphere
Clayton Coker from NRL assimilated TIP observations into USU GAIM and found obvious improvement of assimilation results during nighttime then only assimilating GPS observations
Xiaoqing Pi from JPL did many observation system simulation experiments (OSSE) and found that COSMIC 2 can advance the assimilation performance because of much more GPS TEC observations than current COSMIC

5. Future Mission Highlights
Kompsat-5 launch delayed until 12/2010
OceanSat-2 launched, ROSA phase/amp data
GFZ new mission Tandem-X, possible MicroGEM mission