The SCALE-LETKF system and its early applica9ons Guo-Yuan Lien , - PowerPoint PPT Presentation

The SCALE-LETKF system and its early applica9ons Guo-Yuan Lien , Takemasa Miyoshi, Seiya Nishizawa, Ryuji Yoshida, Hisashi Yashiro, Sachiho Adachi, and Hirofumi Tomita RIKEN Advanced Institute for Computational Science, Japan October 9, 2015

Introduction of myself Guo-Yuan Lien • 2014-15 Postdoctoral researcher , RIKEN AICS • 2014 Ph.D. in Atmospheric and Oceanic Science • University of Maryland, College Park, Maryland • Advisors: Profs. Eugenia Kalnay and Takemasa Miyoshi • 2009 M.S. in Atmospheric Sciences • Na9onal Taiwan University, Taipei, Taiwan • Advisor: Prof. Chun-Chieh Wu • Research topics: • Assimila9on of the global satellite precipita9on data. • Data assimila9on for tropical cyclone ini9aliza9on and forecasts.

We coupled the LETKF to a new model: SCALE. • Wide usage of LETKF: • Global models: • SPEEDY (Miyoshi 2005) • SPEEDY-C (Kang et al. 2011, 2012) • Earth simulator (Miyoshi and Yamane 2007) • GFS (Szunyogh et al. 2008; Lien et al. 2014, 2015) • JMA GSM (Miyoshi et al. 2010) • NICAM (Terasaki et al. 2015) • MOM (Penny et al. 2013) • Regional models: • JMA NHM (Miyoshi and Aranami 2006; Kunii 2014) • WRF (Miyoshi and Kunii 2012) • SCALE-LETKF (Lien et al., in prepara9on) • Others: • Mars model (Greybush et al. 2012) … and so on.

Goals: Real-time, high-resolution, short-term rainfall prediction