Influence of the solar radiation on the diurnal and seasonal variability of O3 and H2O in the stratosphere and lower mesosphere based on continuous observations in the tropics and high Arctic

该项目的目标是测量位于Ny-Ålesund/斯匹次卑尔根的北极平流层和中间层中O3和H2O的变化，以及位于msamrida /委内瑞拉的热带地区，特别强调太阳变率的影响。这些测量将使我们能够研究下列科学课题：-测量与北极高海拔地区相比，热带地区水蒸汽的日变化和季节变化对臭氧化学的影响。-通过比较两个地点的测量结果，研究紫外线变率与带电粒子对臭氧的影响。-估计中层空气向下进入平流层上层和中层的垂直输送。-评估水汽浓度变化对北极和热带平流层臭氧化学的长期影响。

The goal of this project is to measure changes in O3 and H2O in the stratosphere and mesosphere in the Arctic at Ny-Ålesund/Spitsbergen and the Tropics at Mérida/ Venezuela with special emphasis on the effects due to solar variability. These measurements will allow us to study the following scientific topics:- Measure the influence of the diurnal and seasonal variability of water vapour on the ozone chemistry in the tropics compared to the high Arctic.- Investigate the influence of UV variability compared to the influence of charged particles on ozone by comparisons of measurements at the two sites.- Estimate the vertical transport of mesospheric air downward into the upper and middle stratosphere.- Assess the long-term impact of variations in water vapour concentrations on the stratospheric ozone chemistry in the Arctic and the Tropics.