Figure 1 | Scientific Reports

Figure 1

From: Canadian Arctic sea ice reconstructed from bromine in the Greenland NEEM ice core

Figure 1

Bromine and sodium in the NEEM ice core over the past glacial cycle.

Bromine and sodium concentrations are decoupled from interglacial to glacial climates. The enrichment of bromine relative to sodium (Br enrichment) more closely follows the NGRIP δ18O temperature proxy rather than 65°N summer solstice insolation45. Minimum Brenr values are observed during the coldest phases of the glacial, while the maximum is observed during the Holocene climatic optimum.

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