Glaciological Research Project in Patagonia 2006-2009 Studies at Glaciar Perito Moreno, Hielo Patagonico Sur, in area of Hielo Patagonico Norte, and along the Pacific Coast

DOI 2 Citations 45 References Open Access
  • ANIYA Masamu
    University of Tsukuba
  • SKVARCA Pedro
    Instituto Antártico Argentino
  • SUGIYAMA Shin
    Institute of Low Temperature Science, Hokkaido University
  • AOKI Tatsuto
    College of Natural Sciences, Kanazawa University
  • MATSUMOTO Takane
    Centro de Investigación en Ecosistemas de la Patagonia
  • ANMA Ryo
    Graduate School of Life and Environmental Sciences, University of Tsukuba
  • NAITO Nozomu
    Department of Global Environment Studies, Hiroshima Institute of Technology
  • ENOMOTO Hiroyuki
    Department of Civil Engineering, Kitami Institute of Technology
  • HORI Kazuaki
    Department of Environmental Science and Technology, Meijo University
  • MARINSEK Sebastián
    Instituto Antártico Argentino
  • KONYA Keiko
    Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology
  • NUIMURA Takayuki
    Graduate Student, Graduate School of Environmental Studies, Nagoya University
  • TSUTAKI Shun
    Graduate Student, Graduate School of Earth Environmental Sciences, Hokkaido University
  • TONE Kenta
    Graduate Student, Graduate School of Earth Environmental Sciences, Hokkaido University
  • BARCAZA Gonzalo
    Dirección de Aguas, Ministerio de Obras Públicas

Bibliographic Information

Other Title
  • パタゴニアの氷河研究2006-2009
  • Glaciological Research Project in Patagonia 2006-2009
  • Studies at Glaciar Perito Moreno, Hielo Patagónico Sur, in area of Hielo Patagónico Norte, and along the Pacific Coast

Description

The Glaciological Research Project in Patagonia (GRPP) 2006-2009 was carried out with several objectives at Glaciar Perito Moreno of the Hielo Patagónico Sur (HPS), in the area of the Hielo Patagónico Norte (HPN) and along the Pacific coast. At Glaciar Perito Moreno, hot water drilling was carried out at about 5km upstream from the terminus, reaching the glacier bottom at ca. 515m, in order to monitor subglacial water pressure. Good positive correlations among air temperature, subglacial water pressure and glacier flow speed were found. Based on 14C dating of tree and organic samples, it is proposed that Glaciar Perito Moreno made two Little Ice Age (LIA) advances at AD1600-1700 and ca. 130-100y BP (AD1820-50). Fan deltas located at the mouth of big rivers around Lago General Carrera (Buenos Aires) and Lago Cochrane (Pueyrredon), in the area east of the HPN, were investigated to elucidate their development. The variations of 21 outlet glaciers of the HPN elucidated from aerial surveys for 2004/05-2008/09 revealed an areal loss of 8.67km2 in four years. A general slowing down of retreats was observed with a few exceptions. Meteorological measurements at Glaciar Exploradores of the HPN from 2005 to 2009 indicate that air temperature ranged from 17.4°C to -10.5°C. The total annual precipitation was about 3000mm. Glacier surface melt was observed at two spots. Sediment and water discharges from the glacier showed that while water discharge fluctuated a lot, suspended sediment concentration was rather stable in summer. A single channel seismic profiling during the JAMSTEC MR08-06 cruise identified a probable submerged moraine formed before the last glacial maximum (LGM) in the Golfo de Penas, south of Taitao Peninsula. Piston coring along the Chilean coast further indicates that ice-rafted debris recorded the LGM and earlier Late Pleistocene events of the glacial advance.

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Details 詳細情報について

  • CRID
    1390282679644052096
  • NII Article ID
    130000723658
  • DOI
    10.5331/bgr.29.1
  • ISSN
    18848044
    13453807
  • Text Lang
    en
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
    • OpenAIRE
  • Abstract License Flag
    Disallowed

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