ATMOSPHERIC TRANSPORT OF BOMB-PRODUCED CL-36

被引：83

作者：

SYNAL, HA

BEER, J

BONANI, G

SUTER, M

WOLFLI, W

机构：

[1] EAWAC, ETH,INST AQUAT SCI & WATER POLLUT CONTROL, CH-8600 DUBENDORF, SWITZERLAND

[2] SWISS FED INST TECHNOL, INST MITTELENERGIEPHYS, PAUL SCHERRER INST, CH-8093 ZURICH, SWITZERLAND

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1990年 / 52卷 / 3-4期

关键词：

D O I：

10.1016/0168-583X(90)90462-4

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Cl-36 measurements have been made in an arctic ice core drilled near the Dye-3 site (65-degrees 11'N, 43-degrees 50'W). The samples analyzed cover the period between 1945 and 1985 with annual resolution. Due to the release of Cl-36 to the atmosphere from nuclear bomb tests, the data shown a peak in the late fifties with Cl-36 fallout rates about three orders of magnitude higher than expected from cosmic ray production. The time resolution is now precise enough to resolve the structure of the descending part of the fallout pattern. From the fallout rates obtained, a stratospheric residence time for bomb-produced Cl-36 could be derived. A detailed interpretation of the data is done with a four-box atmospheric transport model. The large and well-defined Cl-36 bomb pulse provides an excellent tracer for ground water studies.

引用

页码：483 / 488

页数：6

共 11 条

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