Science Advances

Supplementary Materials

This PDF file includes:

  • fig. S1. Long-term NAO index from observations on Iceland and the Azores (1950–2016) (19).
  • fig. S2. Extended GBI (1850–2016) (14).
  • fig. S3. Correlation between JJA cloud cover and LWD anomalies.
  • fig. S4. Correlation between summer radiation anomalies and albedo.
  • fig. S5. Correlation between annual melt and runoff anomalies.

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