Infrared Measurements in the Antarctica

南极洲的红外测量

• 批准号: 8917643
• 负责人: Frank Murcray
• 金额: $ 17.34万
• 依托单位: University of Denver
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-05-15 至 1994-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8917643&HistoricalAwards=false
• 关键词: Infrared; Measurements; Antarctica

This award will continue the measurement of trace atmospheric gases that are considered to be important to the formation of the annual antarctic ozone hole and also are important for controlling the Earth's radiation balance. Two techniques will be used. At McMurdo, in conjunction with the New Zealand Antarctic Research Program, infrared absorption measurements using the sun as an infrared radiation source will continued during the time of the ozone hole, as they have for the past few years. A new instrument has been installed at South Pole that will measure emitted atmospheric infrared radiation in the winter (polar night) as well as absorbed solar radiation in the summer. This instrument will be operated every day. In both cases the wave number region to be covered will be 750-4000 inverse centimeters. The gases that should be detected include hydrochloric acid, nitric acid, nitrogen dioxide, chlorine nitrate, nitrous oxide, methane, ozone and the chlorofluorocarbons 11 and 12 (F11 and F12) during the time of the ozone hole and the total column abundances over South Pole of nitric acid, ozone, water vapor, F11 and F12 on a continuous basis for the entire year. The measurements are not only important for achieving a better understanding of the stratospheric chemistry that causes the ozone depletion but also for determining how radiatively important trace species (RITS) are affecting the Earth's climate. This research is jointly supported by the Atmospheric Chemistry and Polar Aeronomy and Astrophysics programs at NSF and also by the Upper Atmospheric Research Program at NASA.

该奖项将继续测量微量大气 被认为是重要的气体的形成 每年的南极臭氧空洞，也是重要的控制 地球的辐射平衡 将使用两种技术。 在 麦克默多与新西兰南极研究所合作， 计划，红外吸收测量使用太阳作为一个 红外线辐射源将继续在时间的 臭氧层空洞，就像过去几年一样。 一项新的文书 已经安装在南极， 冬季（极夜）的大气红外辐射 在夏天吸收太阳辐射。 该工具将 每天都要做手术。 在这两种情况下，波数区域都是 覆盖将是750-4000厘米的倒数。 的气体 应检测的酸包括盐酸，硝酸， 二氧化氮，硝酸氯，一氧化二氮，甲烷，臭氧 以及氯氟烃11和12（F11和F12）在 南方上空臭氧洞和总气柱丰度的时间 硝酸、臭氧、水蒸气、F11和F12在一个 全年连续的基础上。 测量不仅对实现更好的 了解平流层化学物质导致臭氧 耗尽，而且还用于确定辐射重要的痕迹 物种（RITS）正在影响地球的气候。 这项研究是由大气化学联合支持的 和极地高层大气物理学和天体物理学项目， 美国宇航局高层大气研究计划