NOAA/WDS Paleoclimatology - Touchan - Thniet N’ser - PIHA - ITRDB DZA028

The first large-scale network of tree-ring chronologies from the western Mediterranean (WM; 32°N–43°N, 10°W–17°E) is described and analyzed to identify the seasonal climatic signal in indices of annual ring width. Correlation and rotated empirical orthogonal function analyses are applied to 85 tree-ring series and corresponding gridded climate data to assess the climate signal embedded in the network. Chronologies range in length from 80 to 1129 years. Monthly correlations and partial correlations show overall positive associations for Pinus halepensis (PIHA) and Cedrus atlantica (CDAT) with winter (December–February) and spring (March–May) precipitation across this network. In both seasons, the precipitation correlation with PIHA is stronger, while CDAT chronologies tend to be longer. A combination of positive correlations between growth and winter–summer precipitation and negative partial correlations with growing season temperatures suggests that chronologies in at least part of the network reflect soil moisture and the integrated effects of precipitation and evapotranspiration signal. The range of climate response observed across this network reflects a combination of both species and geographic influences. Western Moroccan chronologies have the strongest association with the North Atlantic Oscillation.

本存档古气候学研究可通过美国国家海洋和大气管理局（NOAA）下属的国家环境信息中心（NCEI）获取，该中心隶属于古气候学世界数据服务（WDS）。相关的NCEI研究类型为树木年轮。数据包含树木年轮参数，地理位置为北非阿尔及利亚。时间覆盖范围为距今（BP）日历年前120年至前-61年。有关参数和研究地点的详细信息，请参阅元数据。使用数据时请引用本研究。