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Table 2 Historical climate reconstructions used in this study. PDSI = Palmer Drought Severity Index; ENSO = El Niño−Southern Oscillation; PDO = Pacific Decadal Oscillation.

From: Historical Fire-Climate Relationships in Contrasting Interior Pacific Northwest Forest Types

Climate reconstruction Record Source
Precipitation 1706 to 1978 Garfin and Hughes 1996
Summer temperature 1600 to1983 Briffa et al. 1992
PDSI 400 to 2003 Cook et al. 2004
ENSO 1301 to 2005 Li et al. 2013
PDO 1565 to 2004 D’Arrigo and Wilson 2006