4.2 Article

Barrier island response to late Holocene climate events, North Carolina, USA

期刊

QUATERNARY RESEARCH
卷 76, 期 1, 页码 46-57

出版社

CAMBRIDGE UNIV PRESS
DOI: 10.1016/j.yqres.2011.05.001

关键词

Paleo-inlet; Barrier island; Optically stimulated luminescence dating; Ground penetrating radar; Outer Banks; North Carolina; Medieval Warm Period; Little Ice Age

资金

  1. USGS [02ERAG0044]
  2. University of North Carolina General Administration

向作者/读者索取更多资源

The Outer Banks barrier islands of North Carolina, USA, contain a geologic record of inlet activity that extends from ca. 2200 cal yr BP to the present, and can be used as a proxy for storm activity. Optically stimulated luminescence (OSL) dating (26 samples) of inlet-fill and flood tide delta deposits, recognized in cores and geophysical data, provides the basis for understanding the chronology of storm impacts and comparison to other paleoclimate proxy data. OSL ages of historical inlet fill compare favorably to historical documentation of inlet activity, providing confidence in the technique. Comparison suggests that the Medieval Warm Period (MWP) and Little Ice Age (LIA) were both characterized by elevated storm conditions as indicated by much greater inlet activity relative to today. Given present understanding of atmospheric circulation patterns and sea-surface temperatures during the MWP and LIA, we suggest that increased inlet activity during the MWP responded to intensified hurricane impacts, while elevated inlet activity during the LIA was in response to increased nor'easter activity. A general decrease in storminess at mid-latitudes in the North Atlantic over the last 300 yr has allowed the system to evolve into a more continuous barrier with few inlets. (C) 2011 University of Washington. Published by Elsevier Inc. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.2
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据