Extended Data Fig. 4: Ensemble reconstruction climate signals.
From: 2023 summer warmth unparalleled over the past 2,000 years
Field correlations of the ensemble mean23 against GISTEMP4 JJA land (a, b) and land and sea surface temperatures (c, d) from 1850–2010 CE. Maps produced using the KNMI Climate Explorer at https://climexp.knmi.nl/start.cgi.