Observations and Modeling of Ozone Transport in the Arctic Stratosphere

北极平流层臭氧输送的观测和模拟

• 批准号: 9902691
• 负责人: Dorothy Gibson-Wilde
• 金额: $ 11.2万
• 依托单位: NorthWest Research Associates, Incorporated
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-08-01 至 2002-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9902691&HistoricalAwards=false
• 关键词: Observations; Modeling; Ozone; Transport; Arctic

This project will investigate the transport of stratospheric ozone at polar latitudes in the northern hemisphere by collecting and analyzing data from the Arctic Lidar Observatory for Middle Atmosphere Research (ALOMAR), situated in the Norwegian Arctic. This site is ideally situated to observe the northern hemisphere polar vortex and vortex edge dynamics, as well as the associated ozone depletion phenomena. The Rayleigh-Mie-Raman lidar system at ALOMAR is capable of measuring stratospheric temperatures. The associated Doppler Wind and Temperature System measures horizontal and vertical wind velocities. The collocated stratospheric differential absorption lidar measures ozone and polar stratospheric clouds. Coordinated measurements using all these instruments will be carried out during the winter of 1999/2OOO in close coordination with the NASA-supported SOLVE (SAGE III Ozone Loss and Validation Experiment) project, which will provide complementary data from aircraft and balloons.The modeling component of the project will investigate the transport of stratospheric ozone in polar regions using the data obtained through this award and as input for a mesoscale Lagrangian transport model. Of particular interest is the role of mesoscale dynamical processes, such as atmospheric gravity waves, in the evolution of arctic polar vortex winds and their role in redistributing ozone.

该项目将通过收集和分析位于挪威北极的北极激光雷达中层大气研究观测站的数据，调查北半球极地纬度平流层臭氧的输送情况。这个地点是观测北半球极地涡旋和涡旋边缘动态以及相关的臭氧消耗现象的理想地点。阿洛马尔的瑞利-米-拉曼激光雷达系统能够测量平流层温度。相关的多普勒风和温度系统测量水平和垂直风速。并置的平流层差分吸收激光雷达测量臭氧和极地平流层云。使用所有这些仪器的协调测量将在1999/2000年冬季与NASA支持的SOLE(SAGE III臭氧损失和验证实验)项目密切协调进行，该项目将提供来自飞机和气球的补充数据。该项目的模拟部分将使用通过该奖项获得的数据并作为中尺度拉格朗日输送模式的输入来调查极地地区平流层臭氧的输送。特别令人感兴趣的是，大气重力波等中尺度动力过程在北极极地涡旋风演变中的作用及其在重新分配臭氧方面的作用。