The feasibility of reconstructing hydroclimate over West Africa using tree-ring chronologies in the Mediterranean region
The feasibility of reconstructing hydroclimate over West Africa using tree-ring chronologies in the Mediterranean region
复制标题
利用地中海地区树木年轮年表重建西非水文气候的可行性
DOI：
10.1088/1748-9326/ac79c0
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发表时间：
2022
影响因子：
6.7
通讯作者：
Nicholson, Sharon E
中科院分区：
文献类型：
--
作者：
Fosu, Boniface O;Cook, Edward R;Biasutti, Michela;Buckley, Brendan M;Nicholson, Sharon E
尽管令人鼓舞的报告表明热带地区水文气候的长树木年轮重建的潜力，但西非的树木年代学尚未发展起来。本文表明，即使在没有当地树木年表的情况下，也可以使用远程树木年轮来重建一个地区的水文气候。我们提出了西撒哈拉以南干旱地图集 (WSDA)，这是一种基于地中海地区树木年轮年代学的西非水文气候新古气候重建，通过西非季风和地中海表面温度之间的遥连气候关系而得以实现。 WSDA 是对公元 1500 年至 2018 年夏季帕尔默干旱严重度指数的半度网格重建，使用集合逐点回归生成。 WSDA 的校准和验证统计数据表明它在其大部分领域都拥有重要的技能。 WSDA 准确再现了西非水文气候变化的三种主要模式，与区域仪器降水和干旱指数相比，显示出强大的技能。 WSDA 可用于研究最长观测记录范围之外的西非水文气候，并与其他代理数据和考古数据进行整合和比较。这也是开发和利用当地树木年轮重建西非水文气候的重要第一步。
Dendrochronology in West Africa has not yet been developed despite encouraging reports suggesting the potential for long tree-ring reconstructions of hydroclimate in the tropics. This paper shows that even in the absence of local tree chronologies, it is possible to reconstruct the hydroclimate of a region using remote tree rings. We present the West Sub-Saharan Drought Atlas (WSDA), a new paleoclimatic reconstruction of West African hydroclimate based on tree-ring chronologies from the Mediterranean Region, made possible by the teleconnected climate relationship between the West African Monsoon and Mediterranean Sea surface temperatures. The WSDA is a one-half degree gridded reconstruction of summer Palmer Drought Severity indices from 1500 to 2018 CE, produced using ensemble point-by-point regression. Calibration and verification statistics of the WSDA indicate that it has significant skill over most of its domain. The three leading modes of hydroclimate variability in West Africa are accurately reproduced by the WSDA, demonstrating strong skill compared to regional instrumental precipitation and drought indices. The WSDA can be used to study the hydroclimate of West Africa outside the limit of the longest observed record and for integration and comparison with other proxy and archaeological data. It is also an essential first step toward developing and using local tree-ring chronologies to reconstruct West Africa's hydroclimate.
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影响因子：
2.3
作者：
De Ridder, Maaike;Trouet, Valerie;Beeckman, Hans
通讯作者：
Beeckman, Hans
DOI：
10.1186/s13705-016-0075-y
发表时间：
2016
期刊：
Energy, Sustainability and Society
影响因子：
--
作者：
Maame Esi Eshun;Joe Amoako
通讯作者：
Joe Amoako
变暖趋势：撒哈拉沙漠变暖
影响因子：
30.7
作者：
C. Lavaysse
通讯作者：
C. Lavaysse
CE
DOI：
10.1007/978-3-662-48986-4_310790
发表时间：
1988
期刊：
AJN, American Journal of Nursing
影响因子：
--
作者：
Nagi Reddy Achhireddy;Thomas;B. Klevorn;D. Wyse;M. K. Mccarty
通讯作者：
M. K. Mccarty
DOI：
10.1098/rstb.2012.0298
发表时间：
2013
期刊：
Philosophical transactions of the Royal Society of London. Series B, Biological sciences
影响因子：
--
作者：
James R;Washington R;Rowell DP
通讯作者：
Rowell DP