Modeling CFC inventories and formation rates of Labrador Sea Water
Modeling CFC inventories and formation rates of Labrador Sea Water
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DOI：
10.1029/2002gl014855
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发表时间：
2003-01
影响因子：
5.2
通讯作者：
C. Böning;M. Rhein;J. Dengg;C. Dorow
中科院分区：
文献类型：
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作者：
C. Böning;M. Rhein;J. Dengg;C. Dorow
使用北大西洋的高分辨率模型来检查氯氟碳化合物 (CFC) 清单的潜力，以计算拉布拉多海水 (LSW) 的形成率。虽然 1997 年模拟的 CFC-11 清单及其地理分布与观测结果非常相似，但该模型表明 CFC 吸收历史存在显着变化，反映了 LSW 更新响应冬季大气条件变化的脉动。基于冬季新均质水量的 LSW 形成率在 0 Sv 和 11 Sv 之间变化，并且与北大西洋涛动 (NAO) 指数相关（滞后 1 年）。基于 CFC 的平均 LSW 形成速率估计为 3.5-4.4 Sv，大约代表 1970-1997 年期间的平均体积形成速率 (4.3 Sv)。
A high‐resolution model of the North Atlantic Ocean is used to examine the potential of chlorofluorocarbon (CFC) inventories for calculating the rate of Labrador Sea Water (LSW) formation. While the simulated CFC‐11 inventory and its geographical distribution in 1997 is fairly similar to observations, the model indicates pronounced variations in the history of CFC uptake, reflecting pulsations in LSW renewal in response to changes in wintertime atmospheric conditions. The LSW formation rate based on the volume of newly homogenized water during a winter season varies between 0 Sv and 11 Sv, and it is correlated (with a lag of 1 year) with the North Atlantic Oscillation (NAO) Index. The CFC‐based estimate of the mean LSW formation rate is 3.5–4.4 Sv, approximately representing the mean volumetric formation rate (4.3 Sv) for the period 1970–1997.