John Risley, Dalila Kherchouche, Said Slimani, Mehvish Majeed, Sahar Abidi, Safia Belhadj, Ammar Menasri, Sohaib Muhammad, Refad Y. Al-khawalaldah, Ramzi Touchan, David M. Meko
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引用次数: 0
Abstract
An international summer course in dendrochronology, ‘‘Tree Rings, Climate, Natural Resources, and Human Interaction’’, was held in Amman, Jordan, in summer 2023. Drs. Ramzi Touchan and David M. Meko from the University of Arizona Laboratory of Tree-Ring Research were course instructors. The course, with 10 students from Jordan, Algeria, Tunisia, Pakistan, Greece, and the USA, included training in core-sample collection, sample preparation, crossdating, detrending, and climate signal identification. Students applied their training in group precipitation reconstruction projects. Fifty-two Pinus halepensis core samples were collected at Dibeen Forest Reserve, Jordan, which were used to develop a tree-ring chronology (1925–2022) and then used for the reconstruction models. Two reconstructions extended precipitation for Dibeen using: (1) measured October-April precipitation data (R2adj. = 0.63), and (2) gridded November-April precipitation data (R2adj. = 0.61). A third reconstruction used the Dibeen chronology and three low-elevation tree-ring chronologies in Cyprus to extend gridded December–April precipitation data for the eastern Mediterranean region (R2adj. = 0.55). Results from the class projects demonstrated the success of reconstruction techniques in regions with sparse measured climate data and tree-ring chronologies. Future training classes in these regions will also promote the importance of understanding historic climate variability, which is essential for water resource managers and planners.
期刊介绍:
Tree-Ring Research (TRR) is devoted to papers dealing with the growth rings of trees and the applications of tree-ring research in a wide variety of fields, including but not limited to archaeology, geology, ecology, hydrology, climatology, forestry, and botany. Papers involving research results, new techniques of data acquisition or analysis, and regional or subject-oriented reviews or syntheses are considered for publication.
Scientific papers usually fall into two main categories. Articles should not exceed 5000 words, or approximately 20 double-spaced typewritten pages, including tables, references, and an abstract of 200 words or fewer. All manuscripts submitted as Articles are reviewed by at least two referees. Research Reports, which are usually reviewed by at least one outside referee, should not exceed 1500 words or include more than two figures. Research Reports address technical developments, describe well-documented but preliminary research results, or present findings for which the Article format is not appropriate. Book or monograph Reviews of 500 words or less are also considered. Other categories of papers are occasionally published. All papers are published only in English. Abstracts of the Articles or Reports may be printed in other languages if supplied by the author(s) with English translations.