Distributions of 32P and 33P in the western North Pacific with multiple-unit in situ large-volume filtration systems

Geographical distributions of cosmogenic natural radionuclides 32P and 33P in surface seawater were investigated in the western North Pacific (0 to 48.3 N). An in situ large-volume filtration system equipped with adsorbents for dissolved P was used to collect the nuclides in the water column. Radioa...

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Bibliographic Details
Main Authors: Nakanishi Takahiro, Aono Tatsuo, Yamada Masatoshi, Kusakabe Masashi
Format: Conference Object
Language:English
Published: 2006
Subjects:
Pacific
Subarctic
Online Access:https://repo.qst.go.jp/?action=repository_uri&item_id=53774
http://id.nii.ac.jp/1657/00053761/
Description
Summary:Geographical distributions of cosmogenic natural radionuclides 32P and 33P in surface seawater were investigated in the western North Pacific (0 to 48.3 N). An in situ large-volume filtration system equipped with adsorbents for dissolved P was used to collect the nuclides in the water column. Radioactive P inventories of total dissolved P in the subarctic region and its front were higher than that in the tropical and subtropical zone. The 33P/32P activity ratios indicated rapid export of particulate matter from the euphotic zone in the subarctic region.

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