Collaborative Research: TI3GER--Technological Innovation Into Iodine and Gv-aircraft Environmental Research

合作研究：TI3GER——碘和Gv飞机环境研究的技术创新

• 批准号: 2027262
• 负责人: Suresh Dhaniyala
• 金额: $ 10万
• 依托单位: Clarkson University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2027262&HistoricalAwards=false
• 关键词: Collaborative; Research; TI3GER; Technological; Innovation

This field campaign includes test flights to certify instrumentation not previously flown on the NSF/NCAR Gulfstream V research aircraft. It also includes flights to address several scientific hypotheses, including the investigation of ozone loss in the upper troposphere and lower stratosphere (UTLS) due to iodine in the region. The research results from this novel collection of instrumentation flown in the UTLS is expected to significantly improve the scientific understanding of chemistry in the region.This project will test advanced instrumentation and a newly designed laminar flow inlet suitable for measuring condensable vapors and ambient ions on the GV research aircraft to achieve the following objectives: (1) The aircraft payload has been developed to experimentally constrain 90% of total iodine in the stratosphere by attempting the first simultaneous aircraft measurements of gas- and particle iodine; (2) Iodic acid (HIO3), a widespread condensable vapor that grows nanoparticles and drives changes in gas-particle partitioning of iodine, will be measured for the first time in the UTLS by aircraft; (3) Simultaneous measurements of ambient ions (number & chemical composition) will identify those condensable vapors that participate in ion-induced nucleation in the UTLS. Initial test flights will be conducted in Colorado, after which a limited number of (~3-6) exploratory science flights are planned from Kona Hawaii to demonstrate the science readiness of the aircraft payload, evaluate instrument performance, and to inform long-term measurements at Mauna Loa Observatory (MLO) in preparation for future campaigns. Aircraft measurements made above MLO, along with iodine oxide (IO) radical measurements from a MAX-DOAS instrument at MLO, will enable the characterization of the nature and shape of the vertical profile of IO above MLO. This project includes collaboration with scientists from three U.S. National Laboratories, one foreign university, and 5 foreign National Laboratories. Four graduate students and three postdocs will interact with scientists at eleven different institutions in the U.S., Germany, Belgium, Russia, and Spain, and gain experience with sophisticated instrumentation, computational fluid dynamics simulations, data interpretation, forecasting, and global modeling.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.

该现场活动包括测试飞行，以验证 NSF/NCAR 湾流 V 研究飞机上未曾使用过的仪器。它还包括解决几个科学假设的航班，包括调查该地区因碘导致的对流层上层和平流层下层（UTLS）的臭氧损失。 UTLS 中飞行的这套新颖仪器的研究成果预计将显着提高对该地区化学的科学理解。该项目将测试先进的仪器和新设计的层流入口，适用于测量 UTLS 上的可凝结蒸汽和环境离子。 GV 研究飞机旨在实现以下目标： (1) 通过尝试首次同时飞机测量气体碘和粒子碘，飞机有效载荷已开发出可通过实验限制平流层中总碘的 90%； (2) 碘酸 (HIO3) 是一种广泛存在的可冷凝蒸气，可生长纳米颗粒并驱动碘的气体-颗粒分配变化，将首次通过飞机在 UTLS 中进行测量； (3) 同时测量环境离子（数量和化学成分）将识别参与 UTLS 中离子诱导成核的那些可冷凝蒸气。最初的测试飞行将在科罗拉多州进行，之后计划从夏威夷科纳进行有限数量（约 3-6 次）探索性科学飞行，以证明飞机有效载荷的科学准备情况，评估仪器性能并为长期测量提供信息莫纳罗亚天文台 (MLO) 为未来的活动做准备。在 MLO 上方进行的飞机测量，以及 MLO MAX-DOAS 仪器的碘氧化物 (IO) 自由基测量，将能够表征 MLO 上方 IO 垂直剖面的性质和形状。该项目包括与来自三个美国国家实验室、一所外国大学和 5 个外国国家实验室的科学家的合作。四名研究生和三名博士后将与美国、德国、比利时、俄罗斯和西班牙 11 个不同机构的科学家互动，并获得复杂仪器、计算流体动力学模拟、数据解释、预测和全球建模方面的经验。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。