Tree-ring reconstructed megadroughts over North America since a.d. 1300

Tree-ring reconstructed summer Palmer Drought Severity Indices (PDSI) are used to identify decadal droughts more severe and prolonged than any witnessed during the instrumental period. These “megadroughts” are identified at two spatial scales, the North American continental scale (exclusive of Alask...

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Veröffentlicht in:	Climatic change 2007-07, Vol.83 (1-2), p.133-149, Article 133
Hauptverfasser:	Stahle, David W, Fye, Falko K, Cook, Edward R, Griffin, R. Daniel
Format:	Artikel
Sprache:	eng
Schlagworte:	16th century 20th century Climate change Drought Drought index Drought patterns Environmental impact Estimates Herbivores History Identification Monthly precipitation Precipitation Social impact Time series Tree rings Trees
Online-Zugang:	Volltext
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