The air-gray imager observes the evolution of mesoscale ionospheric disturbances and its accompanying mesoscale field to irregular structures over time. At 22:55 LT, the periodic structure in the red ellipse is the observed mesoscale field to irregular structure. The field-to-irregular structure is a hot topic in thermal layer/ionosphere research. So far, using radio radar, it has been found that with the latitude ionosphere travel disturbances in the mid-latitude region there are irregular structures in the field of less than 10 km, but no large-scale (>10 km) field-to-irregular structure has been found. In recent years, the middle and upper atmosphere research team led by Xu Jiaoyao, a researcher at the State Key Laboratory of Space Weather at the National Space Science Center of the Chinese Academy of Sciences, has used a self-developed all-sky air glow imager to build a full-day air glow detection station network for China's upper air layer. The long-term dual-channel optical observations were performed on the top and thermal layers/ionospheres, and a large number of air-glow observations were obtained. The physical processes in the middle and thermal/ionosphere regions were also studied. The team's doctoral student Sun Longchang used image information processing methods to reveal for the first time the existence of mesoscale (~150km) fields to irregular structures from the airy image, as shown in the following figure. Using the two-dimensional autocorrelation analysis method, it was also found that the mesoscale field-to-irregular structure moves in the southwest direction in addition to being disturbed by the main ionospheric travel disturbance, and there is a propagation direction of the disturbance (northwest direction) toward the ionosphere perpendicular to the main body. movement. It further proves that the polarization electric field plays a very important role in the evolution process of the perturbation structure of the field into the irregular body and the latitude ionosphere. This research breakthrough has broken through the understanding of the field-to-irregular structure tradition and deepened the understanding of the field-to-field irregular structure and the mechanism of ionospheric travel disturbances. This research result was recently published in the American Academy of Earth Sciences (AGU) academic journal JGR: Space Physics. Paper Information: Longchang Sun, Jiyao Xu, Wenbin Wang, Xinan Yue, Wei Yuan, Baiqi Ning, Donghe Zhang, and FC de Meneses (2015), Mesoscale field-aligned irregularities structures (FAIs) of airglow associated with medium-scale traveling ionospheric Disturbance s (MSTIDs), J. Geophys. Res. Space Physics, 120, doi: 10.1002/2014JA020944. Hex Screws,Screws And Bolts,Screw And Nut,Fastener Bolt NINGBO YWC IMP. & EXP. CO.,LTD , https://www.nbywc-fastener.com