PPT-Potential upgrades of PBL, convection and radiation physics of the 2013 operational HWRF

Young C Kwon Vijay Tallapragada Weiguo Wang Qingfu Liu Hualu Pan Chanh Kieu EMCNCEP Jun ZhangHRDAOML 1   Baseline H130 Physics upgrades Combined H213 PBLH131. Young C. Kwon. EMC/NCEP/NOAA. Hurricane WRF Tutorial. NCWCP College Park, MD. Jan 14 2014. 1. Contents. Overview. Land surface model. Surface layer . physics (air-sea interaction). Planetary Boundary Layer. HIWPP Hydrostatic Models. HIWPP Hydrostatic Models. Model. By. Res. . at 40 . deg. lat. Output. Freq.. Output. Res.. Vertical . Levels. NEMS. ready. Initial . Condi-. tions. Physics. GFS. Global Forecast System. Transfer of Energy as Heat. Energy moves as heat in three ways. Heat is always a transfer of energy from objects at a higher temperature to a lower temperature. There are 3 different ways this transfer of energy can happen. NEMS-NMMB Tutorial. 1 April 2015. Brad Ferrier. (. Dusan. . Jovic. , Ratko . Vasic. , . Weiguo. Wang). Outline. Physics options and parameter settings . (slides 3-18). Shortwave (SW) and longwave (LW) radiation . Linux Platforms. Vito Baggiolini BE-CO-DO. 1. Upgrades of Operational Consoles. Console New Generation (a.k.a. . “Console NG”. ). Local home directories . for operational accounts. bash. shell (instead of . NEMS-NMMB Tutorial. 19 February 2014. Brad Ferrier, . Dusan. . Jovic. , & Ratko . Vasic. Outline. Physics options and parameter settings . (slides 3-17). Shortwave (SW) and longwave (LW) radiation . Barbara Brown . Randy Bullock. Eric . Gilleland. John Halley . Gotway. Anne Holmes. Tara Jensen. Paul . Kucera. Kathryn Newman. Paul Oldenburg. Bonny . Strong. Ed . Tollerud. Verification - . A Finger in Every Pie . the operational HWRF. Young Kwon, Vijay . Tallapragada. , . Weiguo. Wang, HWRF team and Jun Zhang. 1.  . Baseline. (H130). Physics upgrades. Combined. (H213). PBL(H131. ). Meso. -SAS (H132). RRTMG (H133). And why does it matter?. Gary . Lackmann. North Carolina State University. 5 July 2012. Contributions from Daryl Kleist (EMC), Mike Brennan (NHC), and John Brown (ESRL) and Briana Gordon (STI) are gratefully acknowledged. Young C. Kwon, Vijay . Tallapragada. , . Weiguo. Wang, . Qingfu. Liu, . Hualu. Pan, . Chanh. . Kieu. (EMC/NCEP), Jun Zhang(HRD/AOML). 1.  . Baseline. (H130). Physics upgrades. Combined. (H213). PBL(H131. And why does it matter?. Gary . Lackmann. North Carolina State University. 5 July 2012. Contributions from Daryl Kleist (EMC), Mike Brennan (NHC), and John Brown (ESRL) and Briana Gordon (STI) are gratefully acknowledged. EMC/NCEP/NWS/NOAA. Young C. Kwon, V. Tallapragada, R. Tuleya, Q. Liu, K. Yeh*, S. Gopal*, Z. Zhang, S. Trahan and J. O’connor . *: HRD/AOML. Use WRF-NMM3.2 . dynamic core. . Upgrade the . vortex initialization. . Overview of Model: Convection. . The convection scheme of . Emanuel and . Živkovic. -Rothman. . (1999) . uses a buoyancy sorting algorithm . and . represents an entire spectrum of convective clouds, from shallow, non-precipitating cumulus to deep precipitating cumulonimbus. Precipitation re-evaporates and drives an unsaturated downdraft that imports enthalpy and moisture into the subcloud layer. Re-evaporation of cloud water, resulting from entrainment of dry air, drives penetrative downdrafts within the clouds. The cloud base mass flux is continuously relaxed so as to produce near neutrality of a parcel lifted dry adiabatically, and then moist adiabatically, to the first level above its lifted condensation level. This maintains a form of boundary layer . convective aggregation . that changes the structure . of ITCZ. Researchers conducted numerical experiments using a) Control, b) . NoCRF. , and c) Control-minus-. NoCRF. , then calculated d) cloud vertical motion as a function of precipitation intensity for Control and .