'Background errors' diaporamas de présentation

GSI Tutorial 2011

GSI Tutorial 2011. Background and Observation Errors: Estimation and Tuning Daryl Kleist NCEP/EMC. Background Errors. Background error covariance Multivariate relationships Estimating/tuning background errors Balance Flow dependence. 3DVAR Cost Function.

690 views • 47 slides

GSI Overview and Recent Application at CWB

GSI Overview and Recent Application at CWB. Wan-Shu Wu NOAA/NWS/NCEP/EMC. Acknowledgements: John Derber, Yong Han, Daryl Kleist, Dave Parrish, Manuel Pondeca, Jim Purser, Russ Treadon, Paul vanDelst, ??? ??? ??? ???. Overview. History Current system Ongoing / future development

569 views • 42 slides

GSI Overview and Recent Application at CWB

GSI Overview and Recent Application at CWB. Wan-Shu Wu NOAA/NWS/NCEP/EMC. Acknowledgements: John Derber, Yong Han, Daryl Kleist, Dave Parrish, Manuel Pondeca, Jim Purser, Russ Treadon, Paul vanDelst, ??? ??? ??? ???. Overview. History Current system Ongoing / future development

441 views • 42 slides

Estimation of Surface Pressure & Wind Observation Errors from ERA-20C Observation Feedback

Estimation of Surface Pressure & Wind Observation Errors from ERA-20C Observation Feedback. Paul Poli. Outline. Why we care about observation errors Handling of Gross errors Systematic errors Random errors And lessons learnt from ERA-20C Conclusions.

482 views • 30 slides

Craig Schwartz and Zhiquan Liu NCAR/NESL/MMM schwartz@ucar

582 views • 26 slides

3D-Var analysis system

3D-Var analysis system. W.-S. Wu & , M. Xue # , T. Schlatter @ , R.J. Purser & , M. McAtee % , J. Gao # , D. Devenyi @ , J. Derber * , M. Pondeca * , D. Barker + , S. Benjamin @ , R. Aune $ & General Sciences Corporation/SAIC and NOAA/NCEP/EMC, *NOAA/NCEP/EMC, % AFWA/The Aerospace Corporation,

244 views • 17 slides

3D-Var analysis system

3D-Var analysis system. W.-S. Wu & , M. Xue # , T. Schlatter @ , R.J. Purser & , M. McAtee % , J. Gao # , D. Devenyi @ , J. Derber * , M. Pondeca * , D. Barker + , S. Benjamin @ , R. Aune $ & General Sciences Corporation/SAIC and NOAA/NCEP/EMC, *NOAA/NCEP/EMC, % AFWA/The Aerospace Corporation,

260 views • 17 slides