SGER Proposal:Glaciological change in the McMurdo Dry Valleys, Antarctica

0086645 FountainThis award supports a Small Grant for Exploratory Research（SGER）to study glaciological change in the麦克默多干谷，南极洲在“新的专业知识或新方法的应用，以建立研究课题”的类别下. 该项目的目的是评估分类图像在研究冰川范围和湖泊面积变化的幅度和速度方面的应用，以此作为气候变化的指标。 由于冰川范围和湖泊面积的变化率与未分类图像的分辨率相比很小，因此显然需要提高分类图像的分辨率。 获得1米或更高分辨率的分类图像将提供一个基线测量，可与未来的变化进行比较。 将最大限度地利用存档图像，但如有必要，将提出一项新图像请求，以补充现有档案。 这项工作将支持正在进行的实地测量，这是长期生态研究（LTER）网站的一部分，在麦克默多干旱山谷，但这是有限的物流限制，只有少数测量在一年中有限的时间。 如果成功的话，该项目获得的信息将使研究人员能够更好地指导他们的工作，以确定控制山谷变化的重要物理过程。 在执行该项目过程中获得的信息将通过适当的安全程序解密后向公众提供。 拟议工作的“探索性”和“高风险”性质及其对南极冰川研究领域产生重要“影响”的“潜力”都是这项工作适合作为SGER支持的原因。

0086645FountainThis award supports a Small Grant for Exploratory Research (SGER) to study glaciological change in the McMurdo Dry Valleys, Antarctica under the category of "application of new expertise or new approaches to established research topics". The purpose of the project is to assess the application of classified imagery to the study of the magnitude and rate of change of glacier extent and lake area as an indicator of climate change. Because the rate of change of both glacier extent and lake area is small compared to the resolution of unclassified imagery, the increased resolution of classified imagery is clearly needed. Access to classified imagery with 1 meter or better resolution will provide a baseline measurement against which future changes can be compared. Maximum use will be made of archived imagery but if necessary, one request will be made for new imagery to supplement the existing archive. This work will support on-going field measurements which are part of the Long-Term Ecological Research (LTER) site in the McMurdo Dry Valleys but which are limited by logistic constraints to only a few measurements during limited times of the year. If successful, the information gained in this project will enable researchers to better direct their efforts to identify the important physical processes controlling the changes in the valleys. The information acquired in conducting this project will be made available to the public, using appropriate security procedures to declassify the data. The "exploratory" and "high risk" nature of the proposed work and its "potential" to make an important "impact" on the field of Antarctic glacier studies are all reasons that this work is appropriate to support as an SGER.