Measurement of ClO, N2O and High Altitude O3 in the 1990 Antarctic Spring Stratosphere over McMurdo Station

1990 年麦克默多站上空南极春季平流层中 ClO、N2O 和高空 O3 的测量

• 批准号: 8922688
• 负责人: Robert de Zafra
• 金额: $ 2.83万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-08-01 至 1992-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8922688&HistoricalAwards=false
• 关键词: Measurement; ClO; N2O; Altitude; O3

This is a project to measure the abundance and vertical profiles of several trace gases that are important to understanding the chlorine induced destruction of stratospheric ozone. The measurements will be made over McMurdo, Antarctica during the austral spring of 1990, when a reoccurrence of the annual ozone hole is expected. The instrument used will measure microwave radio emission from ozone, nitrous oxide and chlorine monoxide. By measuring the total radiation in the emission lines and the widths of the lines, both the amount and height profiles can be calculated. A unique feature of the instrument is that it employs a superconducting.insulating.superconducting hetrodyne radio receiver that should allow these measurements to be made with unprecedented sensitivity. This is a technology not previously employed for these purposes. This project is jointly funded by the Division of Polar Programs and the Division of Atmospheric Sciences.

该项目旨在测量几种痕量气体的丰度和垂直剖面，这对于了解氯引起的平流层臭氧破坏非常重要。 这些测量将于 1990 年春季在南极洲麦克默多进行，预计届时每年都会出现臭氧空洞。 所使用的仪器将测量臭氧、一氧化二氮和一氧化氯的微波无线电发射。 通过测量发射线中的总辐射和线的宽度，可以计算出辐射量和高度分布。 该仪器的一个独特之处在于它采用了超导、绝缘、超导外差无线电接收器，可以以前所未有的灵敏度进行这些测量。 这是以前未用于这些目的的技术。 该项目由极地项目处和大气科学处共同资助。