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Projects

Project Name and Acronym:

Principal Contacts for Data

Masaki Kanao, NIPR, kanao@nipr.ac.jp

Project Scientists

Masaki Kanao, NIPR, kanao@nipr.ac.jp
Seiji Tsuboi, JAMSTEC, tsuboi@jamstec.go.jp
Shigeru Toda, Aichi Education University, shigeru@auecc.aichi-edu.ac.jp
Yuichi Aoyama, NIPR, aoyama@nipr.ac.jp
Satoru Tanaka, JAMSTEC, stan@jamstec.go.jp
Koichi Doi, NIPR, doi@nipr.ac.jp
Atsushi Watanabe, ERI, Univ. of Tokyo, atsushi@eri.u-tokyo.ac.jp
Kazuo Shibuya, NIPR, shibuya@nipr.ac.jp
Yusuke Usui, Ehime University, usui@sci.ehime-u.ac.jp
Doug Wiens, Washington University, doug@wustl.edu
Andy Nyblade, Pennsylvania State University, aan2@psu.edu
Patrick Shore, Washington University, patrick@seismo.wustl.edu
Samantha Hansen, Pennsylvania State University, shansen@geosc.psu.edu

Project Locations

East Antarctica

Project Activities

The Japanese Antarctic Research Expedition (JARE) deployed few broadband seismic stations both on the outcrop of Lützow-Holm Bay region, together with on the ice sheet of Mizuho Plateau in the vicinity of the Syowa Station, East Antarctica.
The Antarctica`s GAmburtsev Province / GAmburtsev Mountain SEISmic experiment (AGAP / GAMSEIS; IPY # 147) is an internationally coordinated deployment by few tens of broadband seismic stations over the crest of Gambursev Mountains (Dome-A) – Dome-F area. Two of the stations (GM06 and GM07 (Dome-F)) were contributed by Japanese participants (M. Kanao and A. Watanabe).

Principal Science Objectives

The seismological investigations by JARE provide detail information on structure and dynamics of crust - mantle – deep interior of the Earth viewed from the Lützow-Holm Bay – Mizuho Plateau – Dome-F region. The GAMSEIS deployment gives constraints on the origin of the Gamburtsev Mountains with more broad structure and evolution of the East Antarctic craton and subglacial environment. The detection of seismic signals from phenomenon at the base of the ice sheet, such as outburst floods from subglacial lakes could be expected from detailed analyses. The broadband deployment in East Antarctica during IPY was a unique opportunity for implementing the Federation of Digital Seismographic Network (FDSN) in southern high latitude, as one of the POLENET system.

Research Highlights

From JARE data, shear wave splitting and anisotropy of the upper mantle and the lowermost mantle (D” zones) were obtained. Upper mantle structure by using long period receiver functions were also achieved by using broadband data around the LHB region. Ice related signals around the Bay region were also detected at the outcrop stations associated with environmental variations.
From GAMSEIS data obtained in 2008-09, local and regional seismic signals involving ice sheet and atmosphere variations were recorded, in addition to the significant number of teleseismic events. Phenomenon relating ice-sheet movement, such as basal sliding and outburst floods from sub-glacial lakes would be expected from detailed analyses.

Published Papers, Abstracts

Kanao, M., D. Wines, A. Nyblade, Broadband Seismic Deployments in East Antarctica: AGAP/GAMSEIS; IPY #147, 6th Annual Meeting on Asia Oceania Geoscience Society, August 11-15, Singapore, IWG09-A002, 2009　

M. Kanao, Japanese experience from Antarctica - AGAP/GAMSEIS IPY project -, GLISN meeting, 14-16 September, GEUS (Øster Voldgade 10), Copenhagen, 2009

Sun, X, Wiens, D A, Anandakrishnan, S, Aster, R C, Huerta, A D, Nyblade, A, Wilson, T J, An, M, Kanao, M, Crust and Upper Mantle Shear Wave Structure of Antarctica From Seismic Ambient Noise, AGU Fall 2009 Meeting, 14-18 December, U51C-0046, San Francisco, California, USA, 2009

Kanao, M., D. Wines, S. Tanaka, A. Nyblade and S. Tsuboi, Broadband Seismic Deployments in East Antarctica: IPY Contribution to understanding Earth’s Deep Interior –AGAP/GAMSEIS-, The 16th KOPRI International Symposium on Polar Sciences, June 10-12, Incheon, Korea, Proceedings, 90-94, 2009　

Toyokuni, G., H. Takenaka and M. Kanao, Investigation of the Deep Earth, from Antarctica, The 16th KOPRI International Symposium on Polar Sciences, June 10-12, Incheon, Korea, Proceedings, p95, 2009　

Himeno, T., and M. Kanao, Analysis of the Seismicity in the Antarctic Plate by the Statistical Method, The 16th KOPRI International Symposium on Polar Sciences, June 10-12, Incheon, Korea, Proceedings, p105, 2009

M. Kanao, Y. Usui, T. Inoue, A.Yamada, BROADBAND ARRAY DEPLOYMENTS AND CRUST – MANTLE STRUCTURE AROUND THE LUTZOW-HOLM BAY, EAST ANTARCTICA, 2008 IRIS Workshop Abstracts, p82, June 4-6, Skamania Lodge, Stevenson, WA, USA, 2008

　

M. Kanao, S. Tanaka, S. Tsuboi, D. Wiens, BROADBAND SEISMIC DEPLOYMENTS IN EAST ANTARCTICA: IPY CONTRIBUTION TO UNDERSTANDING THE EARTH‘S DEEP INTERIOR, 2008 IRIS Workshop Abstracts, p83, June 4-6, Skamania Lodge, Stevenson, WA, USA, 2008

　

Y. Usui, M. Kanao, A. Kubo, Y. Hiramatsu, SHEAR WAVE SPLITTING BENEATH LUTZOW-HOLM BAY REGION, EAST ANTARCTICA AND SRI LANKA, 2008 IRIS Workshop Abstracts, p89, June 4-6, Skamania Lodge, Stevenson, WA, USA, 2008

M. Kanao, Y. Usui, T. Inoue, A.Yamada, BROADBAND ARRAY DEPLOYMENTS AND CRUST – MANTLE STRUCTURE AROUND THE LUTZOW-HOLM BAY, EAST ANTARCTICA, SCAR/IASC IPY Open Science Conference, Abstract Volume, p73, St. Petersbrug, Russia, July 8-11, 2008　

M. Kanao, S. Tanaka, S. Tsuboi, D. Wiens, BROADBAND SEISMIC DEPLOYMENTS IN EAST ANTARCTICA: IPY CONTRIBUTION TO UNDERSTANDING THE EARTH‘S DEEP INTERIOR, SCAR/IASC IPY Open Science Conference, Abstract Volume, p393, St. Petersbrug, Russia, July 8-11, 2008

Kanao, M., Usui, Y., Inoue, T., Yamada, A., BROADBAND ARRAY DEPLOYMENTS AND CRUST – MANTLE STRUCTURE AROUND THE LUTZOW-HOLM BAY, EAST ANTARCTICA, International Symposium: Fifty Years after IGY – Modern Information Technologies and Earth and Solar Sciences -, PROGRAM and ABSTRACTS, p101, Tsukuba, Ibaraki, Japan, Nov. 10-13, 2008　

Kanao, M., S. Tanaka, S. Tsuboi, D. Wiens, BROADBAND SEISMIC DEPLOYMENTS IN EAST ANTARCTICA: IPY CONTRIBUTION TO UNDERSTANDING THE EARTH‘S DEEP INTERIOR, International Symposium: Fifty Years after IGY – Modern Information Technologies and Earth and Solar Sciences -, PROGRAM and ABSTRACTS, p102, Tsukuba, Ibaraki, Japan, Nov. 10-13, 2008　

Usui, Y., Hiramatsu, Y., Furumoto, M., Kanao, M., Evidence of seismic anisotropy and a lower temperature condition in the D″ layer beneath Pacific Antarctic Ridge in the Antarctic Ocean , Physics of the Earth and Planetary Interiors, doi:10.1016/j.pepi.2008.04.006, 2008

Usui, Y., Kanao, M., Kubo, A., Hiramatsu, Y., Negishi, H., Upper mantle anisotropy from teleseismic SKS splitting beneath Lützow-Holm Bay region, East Antarctica, U. S. Geological Survey and The National Academies, USGS OF-2007-1047, Short Research Paper 013; doi:10.3133/of2007-1047.srp013, 2007　

Kanao, M., Tsuboi, S., Antarctic Arrays Deployments in East Antarctica: Japanese Contribution at IPY 2007-2008, Proc. Inter. Symp. –Asian Collaboration in IPY 2007-2008-, March 1, Tokyo, Japan, 145-147, 2007　

Usui, Y., Kanao, M., Kubo, A., Shear wave anisotropy in upper mantle beneath East Antarctica from broadband seismic data; - contribution to Antarctic Arrays Deployments / POLENET at IPY 2007-2008-, Proc. Inter. Symp. –Asian Collaboration in IPY 2007-2008-, March 1, Tokyo, Japan, 142-144, 2007　

Kanao, M., Usui, Y., Inoue, T., Yamada, A., Kaminuma, K., Broadband seismicarray deployments around the Lutzow-Holm Bay Region, East Antarctica; IPY 2007-2008 contribution, The 14th KOPRI International Symposium on Polar Sciences, May 15-17, Incheon, Korea, Proceedings, 36-40, 2007　

Usui, Y., Kanao, M., Kubo, A., The investigation of lithospheic and asthenospheric mantle anisotropy beneath Lutzow-Holm Bay, East Antarctica, The 14th KOPRI International Symposium on Polar Sciences, May 15-17, Incheon, Korea, Proceedings, 48-54, 2007　

Kanao, M., Tanaka, S., Tsuboi, S., Wiens, D., Broadband Seismic Deployments in East Antarctica: International Collaboration & IPY Contribution to Earth’s Deep Interiors, in Antarctica: A Keystone in a Changing World – Online Proceedings of the 10th ISAES, edited by A. K. Cooper and C. R. Raymond et al., USGS Open-File Report 2007-1047, 144, 3 p., 2007　

Kanao, M., Usui, Y., Inoue, T., Yamada, A., Broadband SeismicArray Deployments and Lithospheric Structure around the Lützow-Holm Bay Region, East Antarctica, in Antarctica: A Keystone in a Changing World – Online Proceedings of the 10th ISAES, edited by A. K. Cooper and C. R. Raymond et al., USGS Open-File Report 2007-1047, 145, 3 p., 2007　

Kanao, M., Yamada, A., Yamashita, M., Kaminuma, K., Characteristic Seismic Signals Associated with Ice Sheet & Glacier Dymanics, Eastern Dronning Maud Land, East Antarctica, in Antarctica: A Keystone in a Changing World – Online Proceedings of the 10th ISAES, edited by A.K. Cooper and C.R. Raymond et al., USGS Open-File Report 2007-1047, 182, 4 p. , 2007　

Institutes / Agencies that provided project support

NIPR
NSF

Other IPY programs contributed to

AGAP/GAMSEIS IPY #147

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