PPT-GSI -based EnKF-Var hybrid data assimilation

Author : tatiana-dople | Published Date : 2018-03-20

system implementation and test for hurricane prediction Xuguang Wang Xu Lu Yongzuo Li Ting Lei University of Oklahoma Norman OK In collaboration with Mingjing

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GSI -based EnKF-Var hybrid data assimilation: Transcript

system implementation and test for hurricane prediction Xuguang Wang Xu Lu Yongzuo Li Ting Lei University of Oklahoma Norman OK In collaboration with Mingjing Tong Vijay Tallapragada. P. Lewis. What is Data Assimilation?. Optimal merging of models and data. Models. Expression of current understanding about process. E.g. terrestrial C model. Data. Observations. E.g. EO. . Some basic stats. nowcasting. Luke . Madaus. -- Wed., Sept. 21, 2011. Past problems. Weather models still poorly predict the timing and intensity of significant weather events. Images from Phil . Regulski. For . short-range forecasts. Kalman. Filters. Yun Liu. Dept. of Atmospheric and Oceanic . Science, University of Maryland . Atmospheric and oceanic . s. ciences and Center for Climatic . R. esearch, UW-Madison. Collaborators: X. . the Upper Troposphere - Lower Stratosphere. K. . Wargan, . S. . Pawson. , . M. . Olsen, . J. . Witte, . A. . Douglass. Global Modeling and Assimilation Office (GMAO). Chemistry and Dynamics Branch. NASA GSFC. Benjamin Ruston. Steve Swadley, Nancy Baker, . Rolf . Langland. NRL, . Monterey, . CA. Outline. Gather information about instrument: . What are previous sensors or instruments, how have they been used?. Yudong. Gao. 1 observational data analysis. Pictures are from P. W. Chan et al. (2014). Left figure is the reconnaissance data from 9:06 to 9:59 UTC, which is thinning at 3km. . data from 12:00 to 12:12 UTC. The direction of wind was changing as the flight direction.. Ming Hu, Stan Benjamin, Steve . Weygandt. , David Dowell, Terra . Ladwig. , and Curtis Alexander. 1. NOAA/ESRL/GSD/EMB. RUA workshop, Boulder. 06/03/2015. GSI overview. The Global Statistical Interpolation (GSI) . Group-meeting @ 20131212. The track of PSU . EnKF. system. 2003, Snyder & Zhang, 1. st. time . EnKF. radar (OSSE); . 294 cites;. 2004, Zhang et al., relaxing method in . EnKF. . . 216 . cites;. A comparison of hybrid variational data assimilation methods in the Met Office global NWP system Andrew Lorenc 11 th Adjoint Workshop, Aveiro Portugal, July 2018 www.metoffice.gov.uk © Crown Copyright 2018, Met Office June 5-7, 2013, NCWCP, College Park, MD. Utility of . GOES. -R . ABI . and GLM instruments in . regional . data assimilation . for . high-. impact weather. Milija Zupanski. Cooperative . Institute for Research in the Atmosphere. into . NCEP . Operational CFS/GFS System. Michael B. . Ek. and . Jiarui. Dong. NOAA/NCEP/EMC, College Park, Maryland, USA. STAR JPSS Science Team Meeting. August . 17, . 2017, NCWCP, College Park MD. Jason Sippel, Gerry . Heymsfield. , Lin . Tian. , and Scott Braun- NASAs GSFC. Yonghui. . Weng. and . Fuqing. Zhang – Penn State University. Experiment setup. Looking at Karl (2010) – only hurricane that HIWRAP data is available for. PSU–. EnKF. System. Xuexing. . Qiu. and . Fuqing. Dec. 2014. The event. （. 0-6UTC . 30th June 2013. ）. 1h precipitation. 185mm/6h. 12 killed in this event. ECMWF . deterministic forecast . Operateurschulung. , January 15, 2019. Outlook. HEST . overview. .. Outcome . of. Engineering Run 2018.. HEST . section. in . paramodi. .. What. . is. beam . optics. ?. Optics. . tools. . . Where.

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