Ranking of tree-ring based hydroclimate reconstructions of the past millenniumпрепринт статьи
База данных: Архив электронных ресурсов СФУ
Аннотация: To place recent hydroclimate changes, including drought occurrences, in a long-term historical context, tree-ring records serve as an important natural archive. Here, we evaluate 46 millennium-long tree-ring based hydroclimate reconstructions for their Data Homogeneity, Sample Replication, Growth Coherence, Chronology Development, and Climate Signal based on criteria published by Esper et al. (2016) to assess treering based temperature reconstructions. The compilation of 46 individually calibrated site reconstructions includes 37 different tree species and stem from North America (n = 29), Asia (n = 10); Europe (n = 5), northern Africa (n = 1) and southern South America (n = 1). For each criterion, the individual reconstructions were ranked in four groups, and results showed that no reconstruction scores highest or lowest for all analyzed parameters. We find no geographical differences in the overall ranking, but reconstructions from arid and semi-arid environments tend to score highest. A strong and stable hydroclimate signal is found to be of greater importance than a long calibration period. The most challenging trade-off identified is between high continuous sample replications, as well as a well-mixed age class distribution over time, and a good internal growth coherence. Unlike temperature reconstructions, a high proportion of the hydroclimate reconstructions are produced using individual series detrending methods removing centennial-scale variability. By providing a quantitative and objective evaluation of all available tree-ring based hydroclimate reconstructions we hope to boost future improvements in the development of such records and provide practical guidance to secondary users of these reconstructions.
Год издания: 2020
Авторы: Fredrik Charpentier Ljungqvist Alma Piermattei Andrea Seim Paul J. Krusic, Ulf Büntgen Minhui He Alexander V. Kirdyanov Jürg Luterbacher, Lea Schneider Kristina Seftigen David W. Stahle Ricardo Villalba Bao Yang Jan Esper
Источник: Quaternary Science Reviews
Ключевые слова: Paleoclimate, Dendrochronology, Dendroclimatology, Hydroclimate, Proxy data, Past millennium, Climate change, Институт экологии и географии, ИЭиГ, сфу