High precision Greenland temperature reconstruction over the past 2000 years using a new method of measuring gasses in trapped air in ice cores

2012 Fiscal Year Final Research Report

• Project/Area Number: 23710020
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Environmental dynamic analysis
• Research Institution: National Institute of Polar Research
• Principal Investigator: KOBASHI Takuro 国立極地研究所, 研究教育系, 特任研究員 (00527129)
• Project Period (FY): 2011 – 2012
• Keywords: 環境変動

Research Abstract

Greenland temperature change affects melting of Greenland ice-sheet, which in turn cause global sea-level change. Therefore, it is critical to understand Greenland temperature change and the mechanisms. With this KAKENHI, the extraction line and system to reconstruct temperature has been established, and the measurements for the past 2000 years of NGRIP ice core have been completed with good precision. Finally, it was found that NGRIP experienced a similar temperature history with GISP2 over the past 2000 years.

Research Products

• [Journal Article] On the origin of multi-decadal to centennial Greenland temperature anomalies over the past 800 years (2013)
  • Author(s): Kobashi, T., D. T. Shindell, K. Kodera, J. E. Box, T. Nakaegawa, and K. Kawamura
  • Journal Title: Climate of the Past Volume: 9 Pages: 583-596
• [Journal Article] Causes of Greenland temperature variability over the past 4000 years: Implications for Northern Hemispheric temperature change (2012)
  • Author(s): Kobashi, T., K. Kawamura, K. Goto-Azuma, J. E. Box, C.-C. Gao, and T. Nakaegawa
  • Journal Title: Climate of the Past Discussion Volume: 8 Pages: 4817-4883
• [Journal Article] High variability of Greenland temperature over the past 4000 years estimated from trapped air in ice core (2011)
  • Author(s): Kobashi, T., K. Kawamura, J. P. Severinghaus, J.-M. Barnola, T. Nakaegawa, B. M. Vinther, S. J. Johnsen., and J. E. Box
  • Journal Title: Geophysical Research Letters Volume: v. 38
  • DOI: doi:10.1029/2011GL049444
• [Presentation] Causes of Greenland temperature variation over the past 4000 years (2013)
  • Author(s): 小端拓郎
  • Organizer: JPGU
  • Place of Presentation: 幕張
  • Year and Date: 20130500
• [Presentation] Causes of Greenland temperature variation over the past 4000 years (2013)
  • Author(s): 小端拓郎
  • Organizer: Paleoclimate in Arctic environment
  • Place of Presentation: 国立極地研究所、立川
  • Year and Date: 20130300
• [Presentation] Solar induced Greenland temperature variation over the past 4000 years (2013)
  • Author(s): 小端拓郎
  • Organizer: The 3rd Nagoya workshop on the relationship between solar activity and climate change
  • Place of Presentation: 名古屋大学
  • Year and Date: 20130200
• [Presentation] Causes of Greenland temperature variability over the past 4000 years implications for north hemispheric temperature change (2013)
  • Author(s): Kobashi, T.
  • Organizer: ISAR-3
  • Place of Presentation: 東京
  • Year and Date: 20130100
• [Presentation] Causes of multidecadal to centennial Greenland temperature variations over the past 4000 years (2012)
  • Author(s): Kobashi, T.
  • Organizer: AGU
  • Place of Presentation: 米国サンフランシスコ
  • Year and Date: 20121200
• [Presentation] Causes of Greenland temperature variability over the past 4000 years: implications for north hemispheric temperature change (2012)
  • Author(s): Kobashi, T.
  • Organizer: NIPR symposium
  • Place of Presentation: 国立極地研究所、立川
  • Year and Date: 20121100
• [Presentation] Climate change during the Holocene: A perspective from a new Greenland's temperature history from air trapped in ice cores (2012)
  • Author(s): Kobashi, T.
  • Organizer: International Partnership in Ice Core Sciences (IPICS)
  • Place of Presentation: フランス、コートダジュール
  • Year and Date: 20121100
• [Presentation] Greenland temperature variability over the past 4000 years (2012)
  • Author(s): 小端拓郎
  • Organizer: Implications for North Hemispheric temperature change、日本雪氷学会
  • Place of Presentation: 福山
  • Year and Date: 20120900
• [Presentation] Greenland temperature variability over the past 4000 years (2012)
  • Author(s): 小端拓郎
  • Organizer: Implications for North Hemispheric temperature change、日本第四紀学会
  • Place of Presentation: 熊谷
  • Year and Date: 20120800
• [Presentation] Solar influence on Greenland temperature anomalies over the past 1000 years (2012)
  • Author(s): 小端拓郎
  • Organizer: JPGU
  • Place of Presentation: 幕張
  • Year and Date: 20120500
• [Presentation] Solar influence on Greenland temperature anomalies over the past 1000 years (2012)
  • Author(s): 小端拓郎
  • Organizer: 日本気象学会
  • Place of Presentation: 東京
  • Year and Date: 20120500
• [Presentation] Solar influence on Greenland temperature anomalies over the past 1000 years (2012)
  • Author(s): Kobashi, T.
  • Organizer: The 2nd Nagoya workshop on the relationship between solar activity and climate changes
  • Place of Presentation: 名古屋大学、名古屋
  • Year and Date: 20120100
• [Presentation] High variability of Greenland temperature over the past 4000 years estimated from trapped air in ice core (2011)
  • Author(s): 小端拓郎
  • Organizer: NIPR symposium
  • Place of Presentation: 国立極地研究所、立川
  • Year and Date: 20111100
• [Presentation] High variability of Greenland temperature over the past 4000 years (2011)
  • Author(s): Kobashi, T.
  • Organizer: Santa Fe Third Conference for Global and Regional Climate Change
  • Place of Presentation: 米国サンタフェ
  • Year and Date: 20111000
• [Presentation] Solar influence on Greenland temperature anomalies over the past 4000years (2011)
  • Author(s): 小端拓郎
  • Organizer: 日本雪氷学会
  • Place of Presentation: 高岡
  • Year and Date: 20110900
• [Presentation] Synchronous changes of Greenland temperature and alpine glacier over the past 4000 years (2011)
  • Author(s): 小端拓郎
  • Organizer: JPGU
  • Place of Presentation: 幕張
  • Year and Date: 20110500