Photochemical Modeling in Support of CONTRAST (CONvective TRansport of Active Species in the Tropics)

支持 CONTRAST 的光化学模型（热带地区活性物质的对流传输）

• 批准号: 1261657
• 负责人: Ross Salawitch
• 金额: $ 40万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2018-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1261657&HistoricalAwards=false
• 关键词: Photochemical; Modeling; Support; CONTRAST; CONvective

This project is an important part of the Convective Transport of Active Species in the Tropics (CONTRAST) experiment scheduled for January and February 2014, with NSF/NCAR GV flights based out of the island of Guam. This effort includes flight planning and photochemical modeling to provide near real time interpretation of data during the campaign, and post-mission modeling and data interpretation afterward. CONTRAST is designed to measure the chemistry and transport of reactive chemical species into the tropical Tropopause Transition Layer (TTL) over the Western Pacific warm pool area. The sources, chemistry, and transport of trace gases and their degradation products into the lower stratosphere in this region during the boreal winter season can substantially impact the chemistry of the lower stratosphere. The CONTRAST mission is organized in collaboration with two partner projects: ATTREX (the Airborne Tropical Tropopause Experiment--a NASA project utilizing the high altitude Global Hawk (GH), and CAST (Coordinated Airborne Studies of the Tropics)--a project sponsored by the British National Environment Research Council using a BAe-146 aircraft. The research objectives of CONTRAST are to: (1) Characterize the chemical composition at the level of convective outflow over the Western Pacific during the deep convective season; (2) Evaluate the budget of organic and inorganic bromine and iodine in the TTL; and (3) Investigate transport pathways from the oceanic surface to the tropopause. The results of this effort will increase understanding of halogen budgets and impacts on stratospheric ozone depletion. It will also improve the development of process-oriented chemistry/climate models and their validation.

该项目是计划于2014年1月和2月进行的热带（对比）实验中活跃物种的对流运输的重要组成部分，NSF/NCAR GV航班基于关岛岛。这项工作包括飞行计划和光化学建模，以在广告系列期间提供对数据的几乎实时解释，以及后来的误解后建模和数据解释。对比度旨在测量反应性化学物种进入西太平洋暖池区域上热带对流层过渡层（TTL）的化学和运输。在北方冬季，痕量气体及其降解产物及其降解产物的来源，化学和运输会大大影响下层平流层的化学反应。对比任务是与两个合作伙伴项目合作组织的：ATTREX（空中的热带对热带实验实验 - 一个NASA项目，利用高空全球鹰（GH）（GH）和Cast（对热带的空中研究） - 由英国国家环境研究委员会赞助的项目使用BAE-146飞机进行了交流。在对流季节中，西部太平洋（2）在TTL中评估了有机和无机溴的预算；