The Quantitative Assessment of the Mt. Pinatubo Signal in Antarctic Snow

南极雪中皮纳图博山信号的定量评估

• 批准号: 9526725
• 负责人: Ellen Mosley-Thompson
• 金额: $ 15.35万
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-07-01 至 2000-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9526725&HistoricalAwards=false
• 关键词: Quantitative; Assessment; Mt.; Pinatubo; Signal

This award is for support for a study to sample surface snow in pits and to drill shallow cores in the vicinity of South Pole to look for evidence of the June, 1991, eruption of Mt. Pinatubo in the Philippines. Extensive measurements and observations by satellite, ground-based and airborne atmospheric instruments are available regarding the amount of sulfur dioxide emitted from the eruption, as well as the global distribution and decay of the stratospheric aerosols derived from the volcanic sulfur dioxide. Ground-based and airborne measurements in Antarctica clearly indicate that the stratospheric sulfate aerosols from this eruption reached high southern latitudes in late 1991 and persisted in the Antarctic atmosphere through 1993. Preliminary results from snow pit samples recently taken in the South Pole area indicate that the Pinatubo signal exists and can be separated from the signal of another volcanic eruption (Cerro Hudson) which occurred in mid-August, 1991. Combined with the known total sulfate aerosol production from Pinatubo, the proposed sampling and analyses will yield the quantitative information necessary to establish empirical relationships between the explosivity of a low-latitude eruption and the amplitude of its corresponding signals in Antarctic snow.

该奖项是为了支持一项研究坑中的表面积雪，并在南极附近钻浅岩心，以寻找1991年6月的证据，即菲律宾的皮纳图博山（Mt. Pinatubo）爆发。 关于从喷发发射的二氧化硫的量，以及从火山硫二氧化碳衍生的平流层气溶胶的全球分布和衰变，可获得卫星，地面和空气大气仪器的广泛测量和观察。 Ground-based and airborne measurements in Antarctica clearly indicate that the stratospheric sulfate aerosols from this eruption reached high southern latitudes in late 1991 and persisted in the Antarctic atmosphere through 1993. Preliminary results from snow pit samples recently taken in the South Pole area indicate that the Pinatubo signal exists and can be separated from the signal of another volcanic eruption (Cerro Hudson) which occurred in 8月中旬，1991年。与Pinatubo的已知总硫酸盐气溶胶产生相结合，所提出的采样和分析将产生必要的定量信息，以建立低纬度喷发的爆炸性与其在反降雪中相应信号的幅度之间的经验关系。