NOAA/WDS Paleoclimatology - Angola-Benguela Front ODP1078C 25KYr Alkenone SST Reconstructions

A prominent feature in the Southeast Atlantic is the Angola-Benguela Front (ABF), the convergence between warm tropical and cold subtropical upwelled waters. At present, the sea-surface temperature (SST) gradient across the ABF and its position are influenced by the strength ofsoutheasterly (SE) trade winds. Here, we present a record of changes in the ABF SST gradient over the last 25 kyr. Variations in this SST contrast indicate that periods of strengthened SE trade-wind intensity occurred during the Last Glacial Maximum, the Younger Dryas, and the Mid to Late Holocene, while Heinrich Event 1, the early part of the Bølling-Allerød, and the Early Holocene were periods of weakened SE trade-winds.

本存档古气候学研究（Paleoclimatology Study）可通过美国国家海洋和大气管理局（NOAA）国家环境信息中心（NCEI）下属的古气候学世界数据服务（WDS）获取。该研究在NCEI对应的类型为古海洋学（Paleoceanography）。数据集包含古海洋学相关参数，地理范围为南大西洋。时间覆盖范围为距今日历年份（BP）24740年至20年。参数及研究地点的详细信息请参见元数据说明。使用本数据时，请引用该研究。