High Resolution Radar Profiling of the Snow and Ice Stratigraphy beneath the ITASE Traverses, West Antarctic Ice Sheet

南极西部冰盖 ITASE 横断面下方冰雪地层的高分辨率雷达剖面图

• 批准号: 9814589
• 负责人: Steven Arcone
• 金额: $ 3.32万
• 依托单位: Department of Army Cold Regions Research & Engineering Lab
• 依托单位国家: 美国
• 项目类别: Interagency Agreement
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-07-01 至 2001-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9814589&HistoricalAwards=false
• 关键词: Resolution; Radar; Profiling; Snow; Ice

This award supports a program of high resolution radar profiling of the snow and ice stratigraphy beneath the traverse routes in West Antarctica that will be part of the U.S. component of the International Trans-Antarctic Scientific Expedition (US ITASE). A coherent, short-pulse radar with a 400 MHz antenna will be the primary tool. The system will allow real time monitoring in a horizontally scrolled display and will provide exceptional vertical resolution (tens of centimeters) and a penetration depth on the order of 50-70 meters. The primary analysis tool will be simple data compression (stacking), which will reveal subtle deformational features and long distance trends. Advance crevasse detection will be one useful operational aspect of having this system along as part of the ITASE traverses. Isochronal continuity will be interpreted from the continuity in reflection horizons between core sites.

该奖项支持一个在南极洲西部越野路线下进行的雪和冰层地层的高分辨率雷达分析的计划，该计划将成为美国国际跨北极科学探险队（US ITASE）的美国组成部分的一部分。 具有400 MHz天线的连贯的短脉冲雷达将是主要工具。 该系统将允许在水平滚动的显示屏中进行实时监视，并提供出色的垂直分辨率（数十厘米），并在50-70米的阶段进行渗透深度。 主要的分析工具将是简单的数据压缩（堆叠），它将揭示微妙的变形特征和长距离趋势。 Advance Crevasse检测将是将该系统沿着ITASE遍历的一部分进行该系统的一个有用的操作方面。 等到连续性将从核心位点之间反射范围的连续性中解释。