Cimatology of planetary waves seen in ionospheric F-region pertubations using TEC of GPS (CTW-TEC)

DLR Neustrelitz定期制作的北半球和南半球较高、中纬度和极地纬度垂直总电子含量(TEC)的区域地图将针对几天的行星波(PW)进行研究。结果将使用从电离层探空仪和德国地球科学卫星CHAMP上的电离层无线电掩星(IRO)GPS测量获得的垂直电子密度分布进行验证。将建立两个半球的PW气候学，并将调查半球的差异。将使用一个简单的环流模式对中层大气中的PW进行数值模拟，并将分析潮汐调制对PW效应穿透热层的影响，以阐明其在中层大气-热层-电离层行星波可能联系中的作用。

Regional maps of the vertical Total Electron Content (TEC) over the northern and southern hemisphere higher middle and polar latitudes that are regularly produced by DLR Neustrelitz will be investigated with respect to planetary waves (PW) in the period range of several days. The results will be validated using vertical electron density profiles obtained from ionosondes and from ionospheric radio occultation (IRO) GPS measurements onboard the German geoscience satellite CHAMP. A climatology of PW in both hemispheres will be constructed and the hemispheric differences will be investigated. Numerical modelling of PW in the middle atmosphere will be performed using a simple circulation model, and the impact of tidal modulation on the penetration of PW effects into the thermosphere will be analysed to clarify its role in a possible connection of middle atmosphere-thermosphere-ionosphere planetary waves.