Accumuration rate at Mizuho Station,East Antarctica: An application of Pb-210 method
The lead 210 method for dating was applied to firn samples collected from a 5-m pit at Mizuho Station by the 15th Japanese Antarctic Research Expedition. Two series of measurements were undertaken (Po-210 and Pb-210) and the snow accumulation rates were estimated as 19±2cm snow per year from the Po-...
Main Authors: | , |
---|---|
Format: | Report |
Language: | English |
Published: |
Department of Chemistry, Faculty of Fisheries, Hokkaido University
1986
|
Subjects: | |
Online Access: | https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2020 http://id.nii.ac.jp/1291/00002020/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2020&item_no=1&attribute_id=18&file_no=1 |
Summary: | The lead 210 method for dating was applied to firn samples collected from a 5-m pit at Mizuho Station by the 15th Japanese Antarctic Research Expedition. Two series of measurements were undertaken (Po-210 and Pb-210) and the snow accumulation rates were estimated as 19±2cm snow per year from the Po-210 profile and as 20±2cm snow per year from the Pb-210 profile. The net accumulation rate was estimated as 7.8±0.8g water per year assuming that the density was 0.4g per (cm)^3. These values well agreed with the results of previous studies. The lead 210 method could be applied to estimate snow accumulation rate within error of 10% as two sigma. |
---|