Glacial Assessment: Past, Present and Future: Acquisition of Essential Research Instrumentation

冰川评估：过去、现在和未来：获取必要的研究仪器

• 批准号: 0321053
• 负责人: Cornelis van der Veen
• 金额: $ 35.42万
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-15 至 2006-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0321053&HistoricalAwards=false
• 关键词: Glacial; Assessment; Past; Present; Future

This award supports a Major Research Instrumentation (MRI) purchase of equipment for Ohio State University's Glacial Assessment Program (GAP). The program has three major thrusts: 1) documenting ongoing and recent glacier change primarily using geophysical methods including remote sensing; 2) assessing the recent changes from a long-term perspective provided by high-resolution ice core-derived climate histories; and 3) projecting future glacier changes by improving modeling capability, and hence, predicting future climate forcing in terms of snowfall and ablation. This proposal requests funds to augment GAP's ability to investigate glacier changes in the past, present and future by enhancing OSU's technical capability to make critical observations and analyses. More specifically, the spectroradiometer will allow crucial field observations of the spectral signature of periglacial landscapes, to serve as validation for trimline mapping using multispectral satellite imagery. The gravity meter is essential to make a more quantitative assessment of the mass balances of Greenland, Antarctica and smaller glaciers and ice caps that strongly control present and future sea level fluctuations. The mass spectrometer and ion chromatographs provide critical augmentation to OSU's capability to reconstruct past climate variability from ice cores recovered from glaciers and ice caps from the equator to the poles and thereby disentangle the various mechanisms forcing regional climates in the past. Finally, computer clusters will allow better prediction of future climate change via the development of higher resolution simulations of regional climate. The acquisition of the proposed instrumentation is essential for BPRC to maintain its role as aninternational leader in the study of global climate change and for the P.I.s to direct their extensive collective knowledge and expertise on the critical issue of the rapid and accelerating loss of glacier ice

该奖项支持俄亥俄州立大学冰川评估计划(GAP)的主要研究仪器(MRI)采购设备。该计划有三个主要方面：1)主要使用包括遥感在内的地球物理方法记录正在进行的和最近的冰川变化；2)从高分辨率冰芯得出的气候历史提供的长期角度评估最近的变化；3)通过提高建模能力来预测未来的冰川变化，从而从降雪和融化的角度预测未来的气候强迫。该提案要求提供资金，通过加强海洋科学大学进行批判性观测和分析的技术能力，增强GAP调查过去、现在和未来冰川变化的能力。更具体地说，光谱辐射计将允许对冰川周围地貌的光谱特征进行关键的实地观测，以验证使用多光谱卫星图像绘制边界线图的有效性。重力仪对于更定量地评估格陵兰、南极洲以及较小的冰川和冰帽的质量平衡至关重要，这些冰川和冰帽强烈控制着现在和未来的海平面波动。质谱仪和离子色谱仪对俄亥俄州立大学从冰川和冰帽从赤道到两极回收的冰芯重建过去气候变异性的能力提供了关键的增强，从而理清了过去迫使区域气候变化的各种机制。最后，计算机集群将通过开发更高分辨率的区域气候模拟来更好地预测未来的气候变化。获得拟议的仪器对于BPRC保持其作为全球气候变化研究国际领导者的角色以及P.I.将其广泛的集体知识和专业知识应用于冰川迅速和加速消融的关键问题至关重要