Late Quaternary Climate Change in the Eastern Interior of Alaska: A Multidisciplinary Pilot Study

该奖项支持对阿拉斯加内陆东部三个湖泊的多学科研究，以调查湖泊水位、植被和沉积过程与气候变化的关系。这项研究将集中在威斯康辛州晚期和全新世早期（约公元前14000年至公元前6000年），这是一个气候变化明显且相对较快的时期。预计这些湖泊对气候波动很敏感，沉降速度快到足以记录高频事件。这项工作有三个组成部分：1。对可用于构建湖平面记录的细节进行评估；2. 化石花粉植被变化的高分辨率记录与湖泊水平记录的比较，以研究湖泊和植被对气候变化的响应差异；3. 各湖泊基本水文预算的构建及其用于估算水文系统重要参数，特别是降水的过去值。该项目是PALE项目（北极湖泊和河口古气候）的一个组成部分。

This award supports a multidisciplinary study of three lakes in eastern interior Alaska to investigate how lake-levels, vegetation, and sedimentary processes are related to climate change. The study will focus on the late Wisconsin and early Holocene (c.a. 14,000 to 6000 years B.P.), a period of marked and relatively rapid climatic change. The lakes are expected to be sensitive to climatic fluctuations and have sedimentation rates rapid enough to record high-frequency events. This work has three components: 1. assessment of the detail with which a lake-level record can be constructed; 2. comparison of high resolution records of vegetation change from fossil pollen with the lake-level record to examine how lakes and vegetation differ in their response to climate change; 3. the construction of basic hydrologic budgets for each lake and their use to estimate past values of important parameters of the hydrologic system, in particular precipitation. This project represents an element of the PALE project (Paleoclimates of Arctic Lakes and Estuaries).