Two Reconstructions of August-July Precipitation for Central Northern Arizona from Tree Rings
Author
Fletcher, TamaraTouchan, Ramzi
Lepley, Kai
Rouini, Nesrine
Bloye, Robert
Tremarelli, Thomas S.
Pena, Kelly
Meko, David M.
Affiliation
Laboratory of Tree-Ring Research, University of ArizonaIssue Date
2019-08-07Keywords
dendroclimatologypooled
nested
regional reconstruction
Arizona
precipitation
drought
drought
index
water
Metadata
Show full item recordCitation
Tamara Fletcher, Ramzi Touchan, Kai Lepley, Nesrine Rouini, Robert Bloye, Thomas S. Tremarelli, Kelly Peña, and David M. Meko "TWO RECONSTRUCTIONS OF AUGUST–JULY PRECIPITATION FOR CENTRAL NORTHERN ARIZONA FROM TREE RINGS," Tree-Ring Research 75(2), 116-126, (7 August 2019). https://doi.org/10.3959/1536-1098-75.2.116Journal
Tree-Ring ResearchAdditional Links
https://www.treeringsociety.org/Abstract
This study reports two multi-century regional reconstructions of annual precipitation based on Pinus ponderosa and P. edulis from four sites in central northern Arizona. It compares standard regional and time-nested methods to generate reconstructions from 1581-2016 C.E. and 1529-2016 C.E., respectively. The strongest climate relationship is a positive correlation between total ring width and 12-month total precipitation ending in July of the growth year. The chronologies account for 50% of the variance of observed annual precipitation in the regional model and 59%, 60%, and 47% and 35% in the nested models. The two reconstructions are highly correlated (Pearson's correlation r > 0.97, p < 0.001) demonstrating that the reconstructions are highly similar over the period common to both reconstructions, with the nested-model's advantage of extending the range of the reconstruction. The precipitation reconstructions are significantly correlated (r = 0.66, p < 0.001) with the North American Drought Atlas (NADA).Type
Articletext
Language
enISSN
1536-1098EISSN
2162-4585ae974a485f413a2113503eed53cd6c53
10.3959/1536-1098-75.2.116