ISOTOPIC COMPOSITION DATA ALONG A 700-M LONG MIZUHO CORE

It is estimated that the 700-m long core corresponds with the time period of the past 9400 years. Isotopic composition profile of the core, hence, would represent the temperature variation during the Holocence. Since Mizuho Station is located on a flowing ice sheet, however, ice at deep depths forme...

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Bibliographic Details
Main Authors: ナカオ マサヨシ, ワタナベ オキツグ, カメダ タカオ, Masayoshi NAKAWO, Okitsugu WATANABE, Takao KAMEDA
Format: Report
Language:English
Published: ABSTRACT 1990
Subjects:
Mizuho
Mizuho Station
Ice Sheet
Polar meteorology and glaciology
Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3619
http://id.nii.ac.jp/1291/00003619/
https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3619&item_no=1&attribute_id=18&file_no=1
Description
Summary:It is estimated that the 700-m long core corresponds with the time period of the past 9400 years. Isotopic composition profile of the core, hence, would represent the temperature variation during the Holocence. Since Mizuho Station is located on a flowing ice sheet, however, ice at deep depths formed at rather higher elevations. In addition, total gas content measurements revealed that the ice sheet has started thinning at around 1000 years B. P. For constructing the past temperature variation from the core data, therefore, these two effects of downslope movement and ice sheet thinning have to be taken into account.

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