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SIDEBAR | The Svalbard REU Program: A High-Latitude Undergraduate Research Experience in Glacial, Marine, and Lacustrine Processes Relevant to Arctic Climate Change

机译:边栏| Svalbard REU计划:与北极气候变化有关的冰川,海洋和湖泊过程的高纬度本科生研究经验

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摘要

The Svalbard Research Experience for Undergraduates (REU) program, initiated in 2003, provides a unique, field-based research experience for US undergraduates in Arctic Quaternary geology and climate change. The Svalbard archipelago, between 74° and 81°N latitude in the North Atlantic, lies at the northern end of the warm Gulf Stream current and therefore is sensitive to subtle climate and oceanographic changes. Svalbard has warmed considerably during the last 90 years, and climate proxies indicate even greater Holocene climate variability. Our program has two main purposes: to train young scientists in cutting-edge, Arctic field research methods, and to reconstruct climate changes of the past 5,000 years from layered sediments in lakes and fjords. Our students are conducting fieldwork at two locations: Lake Linne, west of Longyearbyen, and Kongsfjorden, near Ny Alesund. To better understand the links among climate, glacier mass balance, sediment transport, and lake and fjord sedimentation, we are monitoring modern sedimentation processes with arrays of sediment traps, temperature sensors, water level recorders, conductivity-temperature-depth (CTD) profilers, and bathymetric surveys. Students recover sediment cores from lakes and fjords and correlate parameters such as layer thicknesses to recent and historical meteorological observations. Ultimately, we seek to derive relationships from modern processes that will allow the sediment records to be better interpreted as proxies for late Holocene climate changes.
机译:斯瓦尔巴大学的大学生研究经验(REU)计划于2003年启动,为美国大学生提供了有关北极第四纪地质和气候变化的独特,基于现场的研究经验。斯瓦尔巴群岛位于北大西洋的北纬74°至81°之间,位于温暖的墨西哥湾流的北端,因此对微妙的气候和海洋变化敏感。在过去的90年中,斯瓦尔巴群岛已显着变暖,而且气候指标表明全新世气候变化更大。我们的计划有两个主要目的:对年轻的科学家进行前沿北极野外研究方法的培训,并利用湖泊和峡湾中的分层沉积物重建过去5,000年的气候变化。我们的学生在两个地点进行实地考察:Longyearbyen以西的Linne湖和Ny Alesund附近的Kongsfjorden。为了更好地了解气候,冰川质量平衡,沉积物运输以及湖泊和峡湾沉积之间的联系,我们正在使用一系列沉积物捕集阱,温度传感器,水位记录器,电导率-温度-深度(CTD)剖面仪,和测深调查。学生们从湖泊和峡湾中回收沉积物核心,并将诸如层厚之​​类的参数与近期和历史气象观测结果相关联。最终,我们寻求从现代过程中得出关系,以更好地将沉积物记录解释为全新世晚期气候变化的代理。

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  • 来源
    《Oceanography》 |2011年第3期|p.51|共1页
  • 作者单位

    Earth and Environmental Science, Hampshire College, Amherst, MA USA;

    Mount Holyoke College,South Hadley, MA, USA;

    Glacial Geology, University of Massachusetts, Amherst, MA, USA;

    Northern Illinois University, DeKalb, IL, USA;

    Bates College, Lewiston, ME, USA;

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