• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Global Biogeochemical Cycles >The Nordic Seas carbon budget: Sources, sinks, and uncertainties
【24h】

The Nordic Seas carbon budget: Sources, sinks, and uncertainties

机译：北欧海域碳预算：来源，汇和不确定性

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

A carbon budget for the Nordic Seas is derived by combining recent inorganic carbon data from the CARINA database with relevant volume transports. Values of organic carbon in the Nordic Seas' water masses, the amount of carbon input from river runoff, and the removal through sediment burial are taken from the literature. The largest source of carbon to the Nordic Seas is the Atlantic Water that enters the area across the Greenland-Scotland Ridge; this is in particular true for the anthropogenic CO _2. The dense overflows into the deep North Atlantic are the main sinks of carbon from the Nordic Seas. The budget show that presently 12.3 ± 1.4 Gt C yr ~(-1) is transported into the Nordic Seas and that 12.5± 0.9 Gt C yr ~(-1) is transported out, resulting in a net advective carbon transport out of the Nordic Seas of 0.17 ± 0.06 Gt C yr ~(-1). Taking storage into account, this implies a net air-to-sea CO _2 transfer of 0.19 ± 0.06 Gt C yr ~(-1) into the Nordic Seas. The horizontal transport of carbon through the Nordic Seas is thus approximately two orders of magnitude larger than the CO _2 uptake from the atmosphere. No difference in CO _2 uptake was found between 2002 and the preindustrial period, but the net advective export of carbon from the Nordic Seas is smaller at present due to the accumulation of anthropogenic CO _2.
机译：北欧海的碳预算是通过将CARINA数据库中最近的无机碳数据与相关的体积运输相结合得出的。北欧海域水体中有机碳的价值，河流径流的碳输入量以及通过沉积物掩埋的清除量均来自文献。进入北欧海域的最大碳源是大西洋水，它穿过格陵兰-苏格兰海岭进入该地区。对于人为产生的CO _2尤其如此。进入北大西洋深处的密集溢流是北欧海域的主要碳汇。预算显示，目前北欧已将12.3±1.4 Gt C yr〜（-1）运入北欧海域，而12.5±0.9 Gt C yr〜（-1）则被运出北欧，导致对流碳净运出北欧0.17±0.06 Gt C yr〜（-1）。考虑到储存，这意味着空气到海洋的净CO _2转移量为0.19±0.06 Gt C yr〜（-1）进入北欧海域。因此，通过北欧海域的碳的水平迁移量比从大气中吸收的CO _2大约大两个数量级。在2002年和工业化之前的时期之间，对CO _2的吸收没有发现差异，但是由于人为的CO _2的积累，目前北欧海对流的净对流碳排放量较小。

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