A Science Management Office for the U. S. Component of the International Trans Antarctic Expedition (US ITASE SMO)ûA Collaborative Pgrm of Research from S. Pole to N. Victoria Lan

国际横贯南极考察美国部分的科学管理办公室 (US ITASE SMO) - 从南极到维多利亚北部的合作研究项目

• 批准号: 0229573
• 负责人: Paul Mayewski
• 金额: $ 17.62万
• 依托单位: University of Maine
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-03-01 至 2006-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0229573&HistoricalAwards=false
• 关键词: Science; Management; Office; U.; S.

This award supports a science management office for a pilot ice-core drilling and analysis program to test the feasibility of obtaining well-dated, high-resolution isotope and chemistry records from East Antarctica. Shallow ice cores will be obtained from two locations: 1) ~100 km from South Pole towards the Pole of Inaccessibility, as an extension of the Byrd Station-to-South Pole ITASE traverse [International Trans Antarctic Scientific Expedition]; 2) at Taylor Dome, near the original deep coring site, and (3) possibly at AGO 3 and AGO 4 as part of a logistics traverse to these sites. All of the cores collected will be sampled at very high resolution (~1/2 cm) and analyzed for major ions. Results from this calibration work, along with those from another project that is analyzing stable isotopes will be used to help plan a program of larger scope, with the objective of mapping the spatial expression of climate variability in East Antarctica. Funds are also provided to organize a community workshop for coordination of the second phase of US ITASE and for one workshop per year for two years dedicated to writing and preparation of scientific papers from phase one of US ITASE. In addition, route selection activities for the follow-on traverse activities in East Antarctica will be conducted using satellite image mapping. A summary document will be produced and made available to the community to help with planning of related field programs (e.g. deep ice radar, firn radar profiling, atmospheric chemistry, ice coring, snow surface properties for satellite observations, ice surface elevation and mass balance).

该奖项支持一个科学管理办公室进行一项试验性冰芯钻探和分析计划，以测试从东南极洲获得日期明确的高分辨率同位素和化学记录的可行性。 浅冰芯将从两个地点获取：1）从南极到难以到达的极点约100 km，作为Byrd站到南极ITASE导线的延伸[国际跨南极科学考察]; 2）在泰勒穹，靠近原始的深取芯地点，以及（3）可能在AGO 3和AGO 4，作为后勤导线到这些地点的一部分。将以极高分辨率（~1/2 cm）对收集的所有岩心进行采样，并分析主要离子。 这项校准工作的结果，沿着分析稳定同位素的另一个项目的结果，将用于帮助规划一个更大范围的方案，其目标是绘制东南极气候变异的空间表现。 还提供了资金，用于组织一次协调美国ITASE第二阶段的社区讲习班，以及为期两年的每年一次讲习班，专门用于撰写和编写美国ITASE第一阶段的科学论文。 此外，还将利用卫星图像测绘为东南极洲的后续穿越活动进行路线选择活动。 将编写一份简要文件并提供给社区，以帮助规划相关的实地方案（例如，深冰雷达、积雪雷达剖面、大气化学、冰芯取芯、卫星观测的雪表面特性、冰表面高程和质量平衡）。