Accumulation rate and alkenones of sediment core SO90-136KL

Sea surface temperatures (SST) and primary productivities have been reconstructed for the northeastern Arabian Sea during the past 65,000 years, using C37-alkenones. Comparison of this SST record with delta18O from Greenland ice core GISP2 shows striking similarities, indicating an apparent linkage between the climate of the Arabian Sea with that of the northern North Atlantic, most probably via atmospheric and/or oceanic circulation. These rapid SST changes are in the long term overlain by insolation changes at 30°N.

利用C37-烯烃，对阿拉伯海东北部过去65,000年的海表温度（SST）和初级生产力进行了重建。将此SST记录与格陵兰冰芯GISP2的δ18O值进行比较，显示出显著的相似性，表明阿拉伯海气候与北大西洋气候之间存在着明显的联系，最有可能通过大气和/或海洋环流实现。这些快速的海表温度变化在长期上被30°N处的太阳辐射变化所叠加。