PPT-Doppler Radar Data Assimilation for a Local Severe Rainfall Event with PSU EnKF System

PSU EnKF System Xuexing Qiu and Fuqing Dec 2014 The event 06UTC 30th June 2013 1h precipitation 185mm6h 12 killed in this event ECMWF deterministic forecast . In a radar bin it provides a measure of the variability of the mean radial velocity estimates movement due to wind shear turbulence andor the quality of the velocity samples The proper use of Spectrum Width can help the severe thunderstorm and torna Jason Sippel. . - NCEP EMC. . / IMSG. (. work completed at NASA GSFC). . Fuqing. Zhang, . Yonghui. . Weng. – Penn State. Scott Braun – NASA GSFC. Dan Cecil – NASA MSFC. NASA unmanned GH recently used in GRIP and HS3 experiments. . Radar Data Assimilation for 0-12 hour severe weather forecasting. Juanzhen. Sun . National Center for Atmospheric Research. Boulder, Colorado. sunj@ucar.edu. Outline. . Background. - . Motivation . Ligurian. . Sea. Spatial and Temporal . scale. . considerations. L. Vandenbulcke, A. Barth, J.-M. . Beckers. GHER/AGO, Université de Liège. L. Vandenbulcke, A. Barth, J.-M. . Beckers. 0/15. DA of HF radar data in the . for the NCEP GFS. Tom Hamill, for . Jeff . Whitaker. NOAA Earth System Research Lab, Boulder, CO, USA. jeffrey.s.whitaker@noaa.gov. Daryl Kleist, Dave Parrish and John . Derber. National Centers for Environmental Prediction, Camp Springs, MD, USA. . Juanzhen. . Sun. NCAR. , Boulder, . Colorado. Oct 25, . 2011. Outline. Introduction. . - Unique aspects of convective-scale DA. - Overview of techniques. Success and Issues. Future challenges. Geostatistical. Combination of Radar and Rain Gauges. CSI 991 . Dan . Basinger. Abstract. Quantitative Precipitation Estimates (QPE) can be performed using methods from . geostatistics. .. Estimates are currently made by combining radar and rain gauge data.. for Polarimetric Radar Data. Takuya Kawabata. 1. ,. Hiroshi Yamauchi. 2. , . Nobuhiro. Nagumo. 1. , . Ahoro. Adachi. 1. 1: Meteorological Research Institute / JMA. 2: Japan Meteorological Agency. Large scale convergence . 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;. 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. Shahil. . Kantesaria. Nathan Olivarez. 13 October 2011. This work is sponsored by the Department of the Air Force under Air Force Contract #FA8721-05-C-0002.  Opinions, interpretations, conclusions, and recommendations are those of the author and not necessarily endorsed by the United States Government. Ligurian. . Sea. Spatial and Temporal . scale. . considerations. L. Vandenbulcke, A. Barth, J.-M. . Beckers. GHER/AGO, Université de Liège. L. Vandenbulcke, A. Barth, J.-M. . Beckers. 0/15. DA of HF radar data in the . Absorption, scattering and extinction cross sections.. Backscattering cross section.. Cross section in the Rayleigh limit (particle diameter is much smaller than the wavelength of the radiation.). Radar cross section for a particle in the Rayleigh limit.. 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.