The correlation between the 37k index and sea surface temperatures in the warm boundary: The South China Sea
The correlation between the 37k index and sea surface temperatures in the warm boundary: The South China Sea
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DOI：
10.1016/s0016-7037(97)00280-9
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发表时间：
1997-11
影响因子：
5
通讯作者：
C. Pelejero;J. Grimalt
中科院分区：
文献类型：
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作者：
C. Pelejero;J. Grimalt
南海，由于其位置和高沉积C37烯酮浓度，是一个理想的环境，烯酮衍生的U37 k指数和海表温度（SST）之间的线性关系的评价在温暖的边界。在这个系统中的烯酮化合物进行了分析，在一系列的核心顶部沉积物覆盖的大部分地区远离河流输入的影响。由此产生的U37 k指数与不同深度和季节的平均SST相关。这些参数的曲线拟合表明，线性U37 k/SST关系保持在暖端，这与其他研究报告的低SST缺乏相关性形成强烈对比。最好的曲线拟合的U37 k测量获得的年平均0-30米水柱温度，提供了一个线性方程，U37 k = 0.031T + 0.092，这是相同的误差范围内，以前获得的那些在开放的海洋网站或Emiliania huxleyi文化。
The South China Sea, due to its location and high sedimentary C37alkenone concentrations, is an ideal environment for the evaluation of the linear relationship between the alkenone-derived U37kindex and sea surface temperatures (SST) at the warm boundary. The alkenone compounds in this system have been analyzed in a series of coretop sediments covering most of the areas situated far from the influence of riverine inputs. The resulting U37kindices have been correlated with averaged SST of various depth levels and seasons. Curve fitting of these parameters have shown that the linear U37k/SST relationship is maintained at the warm end, which strongly contrasts with the lack of correlation at low SST reported in other studies. The best curve fittings of the U37kmeasurements are obtained for the annually averaged 0–30 m water column temperatures, providing a linear equation, U37k= 0.031T + 0.092, that is the same within error limits as those previously obtained in open ocean sites or Emiliania huxleyi cultures.