地质论评2012,Vol.58Issue(2):341-349,9.
新仙女木(YD)事件区域特征及动力机制研究新进展
Recent Progress on Studies of the Spatial Structure and Dynamics for the Younger Dryas Event
摘要
Abstract
As a prototype of abrupt climate changes, the Younger Dryas (YD) event occurred during the last deglaciation, when the Northern Hemispheric temperatures decreased significantly. This event, a focus of interest in the paleoclimate studies, has promoted the understanding of millennial-scale climate changes. Currently, increasing high-resolution records identified a spatio-temporal heterogeneity for the YD event. Knowledge of the structure and transitional pattern for these spatial expressions helps to determine the phase relationship between them, and further understand how reorganization of regional environments responses to rapid climate changes at the low- and high-latitudes. Thus, the previous hypotheses of trigger-response can be tested to deduce a physical interpretation for the YD and present a basis for climate prediction under the similar boundary conditions. By summarizing and comparing the modeling studies and geologic records, this review focuses on the regional responses and the current debates for YD event, and then presents some areas and directions to be further studied. Increasing high-resolution records identified a spatio-temporal heterogeneity for the Younger Dryas (YD) event. Knowledge of the structure and transitional pattern for these spatial expressions helps to determine the phase relationship between them, and further understand how reorganization of regional environments response to rapid climate changes at the low- and high-latitudes. Thus, the previous hypotheses of trigger-response can be tested to deduce a physical interpretation for the YD and present a basis for climate prediction under the similar boundary conditions.关键词
YD事件/精细结构/转型方式/区域差异Key words
the Younger Dryas Event/ detailed structure/ transitional pattern/ regional discrepancy引用本文复制引用
刘殿兵..新仙女木(YD)事件区域特征及动力机制研究新进展[J].地质论评,2012,58(2):341-349,9.基金项目
本文为国家自然科学基金(编号41172148),江苏高校优势学科建设工程资助项目,南京师范大学高层次人才科研启动基金项目(编号2011105XGQ0102)共同资助的成果. (编号41172148)