Mechanism of Volcanic Tephra Falling Detected by X-Band Multi-Parameter Radar
Satoru Oishi*1, Masahiro Iida*2, Masahide Muranishi*2, Mariko Ogawa*2, Ratih Indri Hapsari*3 and Masato Iguchi*4
*1Research Center for Urban Safety and Security, Kobe University
1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
*2Graduate School of Engineering, Kobe University, Japan
*3Department of Civil Engineering, State Polytechnic of Malang, Indonesia
*4Sakurajima Volcano Research Center, Disaster Prevention Research Institute, Kyoto University, Japan
The present study shows the possibility of using X-band multi-parameter radar to detect volcanic tephra for estimating the amount of volcanic tephra in the air even when the amount of volcanic tephra is very low. The model proposed in this study can detect tephra with diameters of 0.5 mm to 3 mm. Through the observation experiment and the model proposal, the present study shows successful detection of volcanic tephra in the air by using X-band multi-parameter radar.
-  K. Ishihara, “Evaluation of Eruption Potential,” Annuals of Disaster Prevention Research Institute, Kyoto University, No.49 C, pp. 61-68, 2006.
-  Y. Nakano, T. Shimizu, T. Yamakoshi, H. Kisa, and T. Ishizuka, “Application of DInSAR technique to estimating an area and a thickness of volcanic ash using ALOS/PALSAR,” Journal of the Japan Society of Erosion Control Engineering, Vol.66, No.4, 2013 (in Japanese, accepted).
-  T. Miwa, A. Toramaru, and M. Iguchi, “Correlations of volcanic ash texture with explosion earthquakes from vulcanian eruptions at Sakurajima volcano, Japan,” Journal of Volcanology and Geothermal Research, pp. 473-484, 2009.
-  M. Hirano and M. Hikida, “A Study on the Method for Estimation of the Amount of Erupted and Deposited Volcanic Ash,” Natural Disaster Science, Vol.7 No.1, pp. 26-36, 1988 (in Japanese).
-  F. S. Marzano, E. Picciotti, M. Montopoli, and G. Vulpiani, “Inside Volcanic Clouds – Remote Sensing of Ash Plumes Using Microwave Weather Radars – ,” Bulletin of American Meteorological Society, pp. 1567-1586, 2013.
-  T. Kozono, T. Miwa, M. Maki, T. Maesaka, D. Miki, and M. Iguchi, “PARSIVEL Tephra-fall Observations at Sakurajima Volcano,” Annuals of Disas. Prev. Res. Inst., Kyoto Univ., No.58B, pp. 86-90, 2015 (in Japanese).
-  FURUNO ELECTRIC CO., LTD, FURUNO’s meteorological monitoring and analyzing system, http://www.furuno.com/ en/systems/meteorological-monitoring [accessed August 28, 2013]
-  W. I. Rose, A. B. Kostinski, and L. Kelley, “Real-time C band radar observations of 1992 eruption clouds from Crater Peak, Mount Spurr volcano, Alaska,” The 1992 eruptions of Crater Peak vent, Mount Spurr volcano, Alaska, USGS Bulletin, No.2139, pp. 19-26, 1995.
-  M. Maki, K. Iwanami, R. Misumi, R. J. Doviak, T. Wakayama, K. Hata, and S. Watanabe, “Observation of volcanic ashes with a 3-cm polarimetric radar,” Proc. 30th Int. Conf. on Radar Meteor., Munich, Germany, Amer. Meteor. Soc., P5.13, 2001.
-  F. S. Marzano, G. Vulpiani, and W. I. Rose, “Microphysical characterization of microwave radar reflectivity due to volcanic ash clouds,” IEEE Trans. Geosci. Remote Sens., Vol.44, pp. 313-327, 2006.