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JDR Vol.12 No.5 pp. 926-931
doi: 10.20965/jdr.2017.p0926
(2017)

Letter:

NIED’s V-net, the Fundamental Volcano Observation Network in Japan

Toshikazu Tanada*,†, Hideki Ueda*, Masashi Nagai*, and Motoo Ukawa**

*National Research Institute for Earth Science and Disaster Resilience (NIED)
Tennodai, Tsukuba, Ibaraki 305-0006, Japan

Corresponding author

**Department of Earth and Environmental Sciences, College of Humanities and Sciences, Nihon University, Tokyo, Japan

Received:
April 3, 2017
Accepted:
July 19, 2017
Online released:
September 27, 2017
Published:
October 1, 2017
Keywords:
V-net, volcano, observation system, NIED
Abstract

In response to the recommendation of the Council for Science and Technology (Subdivision on Geodesy and Geophysics), the National Research Institute for Earth Science and Disaster Resilience (NIED) constructed a network of stations to observe 11 volcanoes: Tokachidake, Usuzan, Tarumaesan, Hokkaido-Komagatake, Iwatesan, Kusatsu-Shiranesan, Asamayama, Asosan, Kirishimayama, Unzendake, and Kuchinoerabujima. At each new station, a borehole seismograph and tiltmeter, a broadband seismograph, and a GNSS (GPS) were installed. Now, NIED has established 55 stations at 16 volcanoes, adding five volcanoes, namely, Izu- Oshima, Miyakejima, Ogasawara Iwoto, Mt. Fuji and Nasu-dake, and has constructed a new volcano observation network linking the 11 original volcanoes. NIED calls the combination of the new and earlier network the fundamental volcano observation network (V-net).

Under a fully open policy, data from the borehole seismographs and tiltmeters, broadband seismographs, rain gauges, barometers,and quartz thermometers in the pressure vessels of the borehole seismographs and tiltmeters are distributed to institutes such as the Japan Meteorological Agency and universities in real time over NIED’s conventional seismic observation data distribution system. GNSS (GPS) data are regularly distributed to relevant research institutes, such as the Geospatial Information Authority of Japan, using file transfer protocol (FTP). In addition, since everyone can use these data for the promotion of volcano research and volcanic disaster prevention, it is now possible to view seismic waves and download data from NIED’s website.

References
  1. [1] T. Kumagai, “Volcanic eruption prediction research,” Bousai Kagaku Gizyutu, Vol.64, pp. 1-3, Nov. 1988 (in Japanese).
  2. [2] National Research Institute for Earth Science and Disaster Resilience, “Progress of NIED in the Past 45 Years,” Technical Note of NIED, No.327, March 2009 (in Japanese).
  3. [3] E. Fujita, M. Ukawa, and E. Yamamoto, “Volcanic Data Analysis system of NIED,” Report of NIED, No.61, March 2001 (in Japanese).
  4. [4] E. Yamamoto, T. Kumagai, S. Shimada, and E. Fukuyama, “Crustal Tilt Movements Associated with the 1986-1987 Volcanic Activities of Izu-Oshima Volcano : Results of Continuous Crustal Tilt Observation at Gojinka and Habu,” Vol.2-33, pp. S170-S178, 1988 (in Japanese).
  5. [5] H. Ueda, E. Fujita, M. Ukawa, E. Yamamoto, M. Irwan, and F. Kimata, “Magma intrusion and discharge process at the initial stage of the 2000 activity of Miyakejima, Central Japan, inferred from tilt and GPS data,” Geophysical J. Int., Vol.161, No.3, pp. 891-906, 2005.
  6. [6] M. Ukawa and M. Ohtake, “A monochromatic earthquake suggesting deep-seated magmatic activity beneath the Izu-Ooshima volcano, Japan,” J. Geophys. Research, Vol.92, pp. 12649-12663, 1987.
  7. [7] http://www.mext.go.jp/b_menu/houdou/20/07/08071504.htm [in Japanese, accessed August 25, 2017]
  8. [8] http://www.mext.go.jp/b_menu/shingi/gijyutu/gijyutu6/002/siryo/attach/1286506.htm [in Japanese, accessed August 25, 2017]
  9. [9] K. Obara, K. Kasahara, S. Hori, and Y. Okada, “A densely distributed high-sensitivity seismograph network in Japan:Hi-net by National Research Institute for Earth Science and DisasterPrevention,” Review of Scientific Instruments, Vol.76, 021301, doi: http://dx.doi.org/10.1063/1.1854197, 2005.
  10. [10] Y. Okada, “Recent progress of seismic observation networks in Japan – Hi-net, F-net, K-NET and KiK-net –,” Earth, Planets and Space, Vol 56, pp. xv-xxviii, August 2004.
  11. [11] K. Shiomi, K. Obara, Y. Haryu, and M. Matsumura, “Construction of NIED high sensitivity seismograph network (Hi-net) and its contribution,” J. Seism. Soc. Japan, Vol.61 (Special issue), S1-S7, July 2009 (in Japanese).
  12. [12] M. Nagai, Y. Miyabuchi, Miyoshi, S. Ikebe, K. Watanabe, T. Ohkura, K. Takemura, T. Ozawa, T. Jitsufuchi, M. Ukawa, and T. Tanada, “Lithologic Features of the Borehole Cores from from the Ichinomiya and Hakusui Observation Wells, Aso Volcano, Southwestern Japan,” Technical Note of NIED, No.373, Febrary 2013 (in Japanese).
  13. [13] M. Nagai, T. Kozono, S. Nakada, T. Kobayashi, T. Kaneko, E. Fujita, and M. Takeo, “Lithologic Features of the Borehole Cores from the Manzen and Hinamoridai Observation Wells, Kirishima Volcano, Southwestern Japan,” Technical Note of NIED, No.374, March 2013 (in Japanese).
  14. [14] T. Urabe and S. Tsukuda, “WIN-A program on workstation for support of manual phase picking process on seismograms recorded by microearthquake observation network ,” Programme and Abstract. Seism. Soc. Japan, No.2, p. 41, 1992 (in Japanese).
  15. [15] H. Ueda, E. Fujita, M. Ukawa, and E. Yamamoto, “Automated Technique for Anomalous Volcanic Crustal Deformation Detection and Source Estimation by Using Real Time Tiltmeter Data,” Report of NIED, No.76, Febrary 2010 (in Japanese).
  16. [16] VIsualization system for Volcanic Activity, http://vivaweb2.bosai. go.jp/viva/v_index.html [in Japanese, accessed August 25 2017]
  17. [17] V-net: http://www.vnet.bosai.go.jp/ [in Japanese, accessed August 25, 2017]
  18. [18] T. Kozono, H. Ueda, T. Ozawa, T. Koyaguchi, E. Fujita, A. Tomiya, and Y. J. Suzuki, “Magma discharge variations during the 2011 eruptions of Shinmoe-dake volcano, Japan, revealed by geodetic and satellite observations,” Bulletin of Volcanology, Vol.75, No.695, doi: 10.1007/s00445-013-0695-4, 2013.
  19. [19] H. Ueda, T. Tanada, and M. Nagai, “Kuchino erabujima Shindake volcanic eruption occurred on August 3, 2014,” Report of Coordinating Committee for Prediction of Volcanic Eruption, No.120, pp. 347-349. December 2014.
  20. [20] NIED, “Aso erupution occurred on August 3, 2014, observed by the fundamental volcano observation network (V-net),” Document of the 137th Coordinating Committee for Prediction of Volcanic Eruption, pp. 81-92, 2017 (in Japanese).
  21. [21] E. Fujita, T. Kozono, H. Ueda, Y. Kohno, S. Yoshioka, N. Toda, A. Kikuchi, and Y. Ida, “Stress field change around the Mount Fuji volcano magma system caused by the Tohoku megathrust earthquake, Japan,” Bulletin of Volcanology, Vol.75, No.679, 2013.
  22. [22] T, Ozawa, E. Fujita, and H. Ueda, “Crustal deformation associated with the 2016 Kumamoto Earthquake and its effect on the magma system of Aso volcano,” Earth Planets Space, Vol.68, 2016.

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Last updated on Dec. 12, 2017