...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Acta Oceanologica Sinica >Distribution of radium-224 in the western Arctic Ocean
【24h】

Distribution of radium-224 in the western Arctic Ocean

机译：镭224在北冰洋西部的分布

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Radium-224 activities in the western Arctic Ocean were measured via ship-board ~(220)Rn emanation technique during the Second Chinese National Arctic Expedition. The results showed that the ~(224)Ra activities in the study areas ranged from being less than 0.08 to 3.58 Bq/m~3, with an average of 0.23 Bq/m~3. The low ~(224)Ra concentration in the surface water was attributed to the influence of sea ice melted water. The horizontal distribution of surface ~(224)Ra in the western Arctic Ocean showed a high ~(224)Ra characteristics occurred along the slope around 160°W, providing evidence for the importance of ice-rafted sediments to controlling the distribution of radium isotopes in the Arctic Ocean. Mostly, ~(224)Ra concentrations increased with the depth in the shelf region and reached a maximum at 75 m at the central Canada Basin, which further confirms the importance of the transport of shelf bottom water to maintaining the upper halocline layer in the Canada Basin.
机译：在第二次中国全国北极考察中，通过船上的〜（220）Rn发射技术测量了北冰洋西部的Rad-224活性。结果表明，研究区的〜（224）Ra活度范围从小于0.08到3.58 Bq / m〜3，平均为0.23 Bq / m〜3。地表水中〜（224）Ra的低浓度归因于海冰融化水的影响。北冰洋西部〜（224）Ra表面的水平分布显示沿160°W附近的斜坡具有较高的〜（224）Ra特征，这提供了浮冰沉积物对控制镭同位素分布的重要性的证据在北冰洋。通常，〜（224）Ra浓度随架子区域的深度而增加，并在加拿大中部盆地75 m处达到最大值，这进一步证实了架子底水的运输对保持加拿大上层卤水层的重要性。盆地。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号