Paper:
Development of Multi-Parameter Phased Array Weather Radar (MP-PAWR) and Early Detection of Torrential Rainfall and Tornado Risk
Nobuhiro Takahashi*1,†, Tomoo Ushio*2, Katsuhiro Nakagawa*3, Fumihiko Mizutani*4, Koyuru Iwanami*5, Akihiko Yamaji*6, Takeshi Kawagoe*7, Masahiko Osada*8, Takehiro Ohta*9, and Masaki Kawasaki*10
*1Nagoya University
Furo-cho, Chikusaku, Nagoya, Aichi 464-8601, Japan
†Corresponding author
*2Tokyo Metropolitan University, Tokyo, Japan
*3National Institute of Information and Communications Technology, Tokyo, Japan
*4Toshiba Infrastructure Systems and Solutions Corporation, Kanagawa, Japan
*5National Research Institute for Earth Science and Disaster Resilience, Ibaraki, Japan
*6Japan Weather Association, Tokyo, Japan
*7Railway Technical Research Institute, Tokyo, Japan
*8Saitama University, Saitama, Japan
*9Yamaguchi University, Yamaguchi, Japan
*10National Institute for Land and Infrastructure Management, Ibaraki, Japan
This paper is an overview of a project concerned with “Early warning for torrential rainfall/tornado” under “Enhancement of Societal Resiliency against Natural Disasters,” which is one of eleven themes of the SIP (Cross-ministerial Strategic Innovation Promotion Program under the Council for Science, Technology and Innovation, the Cabinet Office, Government of Japan). The characteristics of the project are the development of a multi-parameter phased array weather radar (MP-PAWR) that enables the accomplishment of an accurate three-dimensional model of precipitation over 30 s within a 60 km radius. Various products developed ducts using MP-PAWR and other observations, and numerical predictions, are also discussed, with a demonstration experiment to provide early warnings for torrential rainfall and related disasters. For end users such as local governments and general citizens, the final goal of this project is the social implementation of these products.
- [1] Y. Tachikawa, S. Esaki, M. Shiiba, and Y. Ichikawa, “Rainfall-runoff analysis of the Toga river flush flood in July 2008 to prevent the water accident,” J. River Eng., Vol.15, pp. 43-48, 2009 (in Japanese).
- [2] A. Kato and M. Maki, “Localized heavy rainfall near Zoshigaya, Tokyo, Japan on 5 August 2008 observed by X-band polarimetric radar – preliminary analysis –,” SOLA, Vol.5, pp. 89-92, 2009.
- [3] K. Hirano and M. Maki, “Method of VIL Calculation for X-band Polarimetric Radar and Potential of VIL for Nowcasting of Localized Severe Rainfall – Case Study of the Zoshigaya Downpour, 5 August 2008 –,” SOLA, Vol.6, pp. 89-92, doi:10.2151/sola.2010-023, 2010.
- [4] R. Kato, S. Shimizu, K. Shimose, and K. Iwanami, “Very short time range forecast using CReSS-3DVAR for a meso-γ-scale, localized, extreme, heavy rainfall event: Comparison with an extrapolation-based nowcast,” J. of Disaster Res., Vol.12, No.5, pp. 967-979, 2017.
- [5] Y. Usuda et al., J. Disaster Res., Vol.14, No.2, 2019.
- [6] E. Yoshikawa, T. Ushio, Z. Kawasaki, S. Yoshida, T. Morimoto, F. Mizutani, and M. Wada, “MMSE Beam Forming on Fast-Scanning Phased Array Weather Radar,” IEEE Trans. Geosci. Remote Sens., Vol.51, Issue 5, pp. 3077-3088, 2013.
- [7] K. Iwanami et al., “Statistical Validation of Prediction for Amount and Start Time of Heavy Rainfall Based on VIL Nowcast Method in 2015,” J. Disaster Res., Vol.14, No.2, 2019.
- [8] S. Tsuchiya et al., “Development of practical flood forecasting adapted data assimilation technique,” J. Disaster Res., Vol.14, No.2, 2019.
- [9] V. N. Bringi and V. Chandrasekar, “Polarimetric Doppler Weather Radar: Principles and Applications,” Cambridge University Press, 2001.
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