Ultraviolet and Visible Spectroscopy at McMurdo Station

麦克默多站的紫外和可见光谱

• 批准号: 8921914
• 负责人: Susan Solomon
• 金额: --
• 依托单位: NOAA Environmental Technology Laboratory
• 依托单位国家: 美国
• 项目类别: Interagency Agreement
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-08-01 至 1991-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8921914&HistoricalAwards=false
• 关键词: Ultraviolet; Visible; Spectroscopy; McMurdo; Station

This project is to study the chemistry of the antarctic stratosphere with a focus on those chemical constituents that are related to the annual springtime depletion of ozone, known as the ozone hole. Visible and near ultraviolet spectroscopy will be used to measure the total column abundances of nitrogen dioxide, symmetrical chlorine dioxide, nitrogen trioxide and bromine monoxide above McMurdo, Antarctica. The variation of the diurnal variation of these chemicals is of particular value in understanding the photochemical processes that cause the ozone hole. In addition, a novel technique that uses the moon as a light source during times of sunrise and sunset will allow the measurement of vertical profiles and also the rate of photolysis of fast reacting species. This research is funded by the NOAA Aeronomy Laboratory with logistical support provided by NSF/DPP.

该项目旨在研究南极平流层的化学成分，重点关注与每年春季臭氧消耗（称为臭氧空洞）相关的化学成分。 可见光和近紫外光谱将用于测量南极洲麦克默多上空二氧化氮、对称二氧化氯、三氧化氮和一氧化溴的总柱丰度。 这些化学物质的昼夜变化对于理解导致臭氧空洞的光化学过程具有特别的价值。 此外，一种在日出和日落时使用月球作为光源的新技术将允许测量垂直剖面以及快速反应物质的光解速率。 这项研究由 NOAA 航空实验室资助，并由 NSF/DPP 提供后勤支持。