Concentration of Atmospheric 7Be in Tsukuba, Japan
收藏Global Change Master Directory (GCMD)2026-04-25 收录
下载链接：
https://cmr.earthdata.nasa.gov/search/concepts/C1214586361-SCIOPS.html
下载链接
链接失效反馈官方服务：
资源简介：
Concentration of 7Be in surface air was measured at Tsukuba Science
City(36deg. 03min. N, 140deg. 07min. E), Japan, during the period of
Jan. 1987 to Oct. 1992. Aerosol samples were collected by glass fiber
filters using a high volume air sampler. Radioactivity was determined
by 477-KeV gamma-ray with HPGe. The air concentration of 7Be ranged
from 1 -> 6mBq/m3. Seasonal variation was observed: high concentration
appeared in spring and in fall.The "two-peak" variation pattern
observed for 7Be concentration is similar to the seasonal variation
pattern of atmospheric ozone concentration observed on the summit of
Mt. Tsukuba(868m).
提供机构：
SCIOPS
