SGER: Accessing climate- and lake-monitoring equipment, southern Alaska

这笔小额赠款将提供目前安装在阿拉斯加南部的远程气候和湖泊监测设备，以便为气候变化研究提供源源不断的数据和样本。这些空间站是作为之前NSF赞助的研究的一部分安装的。这笔赠款将允许继续从阿拉斯加三个偏远湖泊收集时间序列数据。泥沙捕集器、温度记录仪和降水记录将从已经到位的站点收集，并将更新冰川消退的年度照片。这些湖泊表现出年度分层，可以与气象记录准确关联--这种机会在阿拉斯加极其罕见，如果数据收集中断，就会受到影响。限制在年轻的湖泊沉积物中记录已知天气的方式，将允许更准确地解释较老沉积物的深层，并允许更好地重建较旧的气候条件。智力优势：古气候研究的一个主要目标是通过结合湖泊/气象时间序列和古湖泊时间序列，减少基于湖泊沉积物替代指标重建定量古气候记录的不确定性。迫切需要在2008年夏季进入三个气候和湖泊监测点，以延长时间序列，以便更好地了解该区域目前正在发生的迅速环境变化。随着时间序列的增长，利用湖泊沉积记录来重建过去气候变化的变革性进展的潜力也在增加。广泛的影响：通过这项研究获得的所有数据都将在“阿拉斯加南部的气候记录”网站(http://jan.ucc.nau.edu/~dsk5/S_AK/).)上提供

This small grant will provide urgently needed access to remote climate- and lake-monitoring equipment currently installed in southern Alaska in order to maintain a continuous stream of data and samples for climate-change research. The stations were installed as part of previous NSF-sponsored research. This grant will allow continued collection of time-series data from a set of three remote Alaskan lakes. Sediment trap, temperature logger, and precipitation records will be collected from stations already in place, and annual photographs of glacier retreat will be updated. The lakes exhibit annual layering in varves which can be accurately correlated with meteorological records - this opportunity is extremely rare in Alaska, and would be compromised if the data collection were interrupted. Constraining how known weather is recorded in young lake sediments will allow a more accurate interpretation of deep layers of older sediments, and allow better reconstructions of older climate conditions.Intellectual merit: A primary goal of paleoclimate research is to reduce the uncertainties in reconstructing quantitative paleoclimate records based on lake-sediment proxies by combining limnological/meteorological time series with paleolimnological time series. Access to three climate- and lake-monitoring sites in summer 2008 is critically needed to extend the time series to improve understanding of the rapid environmental changes occurring in the region today. As the time-series grows, so does the potential of a transformative advance in using lacustrine sedimentary records to reconstruct past climatic changes.Broader impacts: All of the data obtained through this study will be made available on the "Climatic Records from Alaska in Southern Alaska" website (http://jan.ucc.nau.edu/~dsk5/S_AK/).