Evidence item

The primary article specifies a late-Holocene last-5,000-year interval and interprets alkenone-derived cooling as a summertime SST-gradient change. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 25789

Source: Middle to late Holocene cooling and increased zonal asymmetry in the mid-latitude North Atlantic · locator {} · excerpt hash sha256:3b3e56469dd62797485b18a1425a9eb25c7b602bf64e8535e6a5fa16f3f72721

Sea Surface Temperature reconstructions derived from alkenone biomarker (SST-alk) reveal a cooling trend in the North Atlantic during the late Holocene (the last 5000 years). ... Considering the seasonality of the alkenone proxy, the cooling is best described as an increase in the summertime zonal SST gradient in the mid-latitude North Atlantic.