Extended Data Fig. 2: Maps showing the correlation of each component proxy record with instrumental ΔSLP in the calibration interval (1900–2000).
From: Forced changes in the Pacific Walker circulation over the past millennium
a, Location of proxy records contributing to the 1200–2000 section of the reconstruction. b, Location of proxy records contributing to the 1400–2000 section of the reconstruction. c, Location of proxy records contributing to the 1600–2000 section of the reconstruction. d, Location of proxy records contributing to the 1800–2000 section of the reconstruction. e, Location of proxy records contributing to the 1860–2000 section of the reconstruction. Symbol colour corresponds to the mean correlation of the proxy record with ΔSLP calculated from HadSLP25, ICOADS26 and ERA-20C (ref. 27). Symbol shape denotes the proxy archive type. Black outline denotes that the proxy record is significantly (P < 0.1) correlated with instrumental ΔSLP. Maps created in R, using coastlines from Natural Earth.
