7Be and 210Pb total deposition fluxes at New Haven, Connecticut and at Bermuda
7Be and 210Pb total deposition fluxes at New Haven, Connecticut and at Bermuda
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DOI：
10.1029/jc088ic09p05411
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发表时间：
1983-06
影响因子：
--
通讯作者：
K. Turekian;L. Benninger;E. Dion
中科院分区：
文献类型：
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作者：
K. Turekian;L. Benninger;E. Dion
在纽黑文，康涅狄格州和百慕大群岛在大约相同的年度期间，在1977-1978年的总沉积通量的210铅和7 Be的测定。1973年至1978年，纽黑文的210 Pb通量几乎保持不变，1977年至1978年期间的通量为1.2 dpm/cm 2/y。百慕大的210 Pb通量为0.69 dpm/cm 2/y。这一较低的流量比预期的模式计算是由于建立了一个阻塞的高压细胞在夏季偏转大陆空气。在纽黑文和百慕大的7 Be通量分别为22.7和17.1 dpm/cm 2/y，与北大西洋西部海洋现存作物测量值一致，但高于其他一些估计。如果这种差异不能归因于取样的差异，则可归因于与海洋数据相符的区域差异。
The total deposition fluxes of 210Pb and 7Be were determined at New Haven, Connecticut, and Bermuda over approximately the same annual period in 1977–1978. The 210Pb flux has remained virtually constant at New Haven from 1973 to 1978, the flux in the 1977–1978 period being 1.2 dpm/cm2/y. The 210Pb flux at Bermuda is 0.69 dpm/cm2/y. This lower flux than expected from model calculations is due to the establishment of a blocking high pressure cell during the summer which deflects continental air. The 7Be fluxes at New Haven and Bermuda are 22.7 and 17.1 dpm/cm2/y, values consistent with western North Atlantic oceanic standing crop measurements, but higher than some other estimates. Where the difference cannot be attributed to differences in sampling it is ascribable to regional differences compatible with the oceanic data.