Collaborative Research: Conference: Conference support for the 2nd RAID Science Planning Workshop

协作研究：会议：对第二届 RAID 科学规划研讨会的会议支持

• 批准号: 2348964
• 负责人: Sarah Shackleton
• 金额: $ 1.93万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-04-01 至 2025-03-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2348964&HistoricalAwards=false
• 关键词: Collaborative; Research; Conference; support; 2nd

Non-technical AbstractThe Antarctic ice sheets are a critical element of Earth’s climate system and are undergoing rapid but poorly quantified change. The East Antarctic Ice Sheet is the largest repository of fresh water on the planet and represents the greatest potential contribution to sea-level rise, yet little is known about its thermal and mechanical conditions, as well as its potential for ice-mass loss. It also contains the oldest atmospheric climate records on the planet (trapped as bubbles of ancient air in ice); exploration for and use of those records is key to reliable modeling of potential climate variations in the near- and mid-term future. Much has been learned over the past decades from satellite observation, but we need direct observation within the East Antarctic Ice Sheet to validate and understand the state of change. To address these problems, the US Rapid Access Ice Drill was developed as a new drilling technology capable of quickly penetrating to the glacial bed of Antarctic ice sheets, retrieving ice core and rock core samples, and providing boreholes for down-hole logging of physical properties in ice. It has been tested in the field in Antarctica and is now ready for scientific research. The Principal Investigators of this award will convene a workshop to bring together research scientists with relevant experience to guide how, when and where the Rapid Access Ice Drill will be used for exploration for the oldest ice, to validate airborne radar imaging of glacial layers, to observe the conditions at the base of the ice sheet, and to recover cores of subglacial rock samples for laboratory analysis. The workshop will emphasize participation by early-career researchers who represent the next generation of polar scientists to engage in Antarctic research at the critical boundary separating the ice sheet from the solid earth below.Technical AbstractThe Antarctic ice sheets are a critical element of Earth’s climate system and are undergoing rapid but poorly quantified change. The East Antarctic Ice Sheet is the largest repository of fresh water on the planet and represents the greatest potential contribution to sea-level rise, yet little is known about its thermal and mechanical conditions, as well as its potential for ice-mass loss. It also contains the oldest meteoric and atmospheric gas climate records on the planet; exploration for and utilization of those records is key to reliable modeling of climate variations in the near- and mid-term future. Exploration of the interior of the East Antarctic ice sheet has proceeded slowly but steadily over several decades, mainly through remote sensing technologies. Despite great progress, pressing questions remain about Earth's climate 1 m.y. ago, ice deformation, geothermal heat flow, basal material properties, and subglacial geology. These problems are best addressed by quickly penetrating to the glacial bed of Antarctic ice sheets, retrieving ice core and rock core samples, and providing boreholes for down-hole logging of physical properties in ice. This is made possible by the US Rapid Access Ice Drill, developed as a new drilling technology capable of direct access. It has been tested in the field in Antarctica and is now ready for scientific research. The Principal Investigators of this award will convene a workshop in 2024 to support research community use of the Rapid Access Ice Drill in Antarctica. Workshop participants will meet to consider how the drilling system can best be used to advance our understanding of current operative ice-sheet processes, past climate records, history of ice-sheet development, and the geological substrate to the East Antarctic ice sheet, all of which have societal relevance. Research scientists with relevant experience will meet to guide how, when and where the Rapid Access Ice Drill will be used for exploration for the oldest ice, to validate airborne radar imaging of glacial layers, to observe the conditions at the base of the ice sheet, and to recover cores of subglacial rock samples for laboratory analysis. The workshop will emphasize participation by early-career researchers who represent the next generation of polar scientists to engage in Antarctic research at the critical cryosphere-geosphere boundary.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

非技术摘要南极冰盖是地球气候系统的关键要素，正在经历快速但难以量化的变化。东南极冰盖是地球上最大的淡水储存库，也是对海平面上升的最大潜在贡献。 ，但人们对它的热力和机械条件以及冰块损失的潜力知之甚少，它还包含地球上最古老的大气气候记录（被困在冰中的古代空气气泡）；使用这些记录是对近中期未来潜在气候变化进行可靠建模的关键，过去几十年来，我们从卫星观测中学到了很多东西，但我们需要在东南极冰盖内进行直接观测来验证和理解。为了解决这些问题，美国快速冰钻技术被开发出来，作为一种新的钻探技术，能够快速穿透南极冰盖的冰床，取回冰芯和岩芯样本，并为下行提供钻孔。洞它已经在南极洲进行了实地测试，现已准备好进行科学研究。该奖项的主要研究人员将召开一个研讨会，汇集具有相关经验的研究科学家，以指导如何、何时何地进行。快速冰钻将用于勘探最古老的冰，验证冰川层的机载雷达成像，观察冰盖底部的情况，并回收冰下岩石样本的核心以进行实验室分析。强调参与代表下一代极地科学家的早期职业研究人员，在将冰盖与下方固体地球分开的关键边界处从事南极研究。技术摘要南极冰盖是地球气候系统的关键要素，正在经历快速但较差的变化东南极冰盖是地球上最大的淡水储存库，也是对海平面上升的最大潜在贡献，但人们对其热力和机械条件以及其潜在的变化知之甚少。它还包含地球上最古老的大气和大气气体气候记录；探索和利用这些记录是对近期和中期未来气候变化进行可靠建模的关键。几十年来，南极东部冰盖的变化缓慢而稳定，主要是通过遥感技术取得了很大进展，但关于一年前的地球气候、冰变形、地热热流、基底物质特性和冰下的问题仍然存在。解决这些问题的最佳方法是快速深入南极冰盖的冰川床，获取冰芯和岩芯样本，并为冰中物理特性的井下记录提供钻孔。这由美国快速通道技术实现。冰钻是一种能够直接进入的新型钻探技术，已在南极洲进行了实地测试，现已准备好进行科学研究，该奖项的主要研究人员将于 2024 年召开研讨会。为了支持研究界使用南极洲的快速冰钻，研讨会参与者将齐聚一堂，讨论如何最好地利用钻探系统来增进我们对当前冰盖运行过程、过去的气候记录和冰盖发展历史的了解。以及东南极冰盖的地质基质，所有这些都具有社会相关性，具有相关经验的研究科学家将齐聚一堂，指导如何、何时何地使用快速冰钻探索最古老的冰，以验证。冰川机载雷达成像研讨会将强调代表下一代极地科学家参与南极研究的早期职业研究人员的参与。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。