Speaker
Description
Graz University of Technology processes thermospheric neutral densities for several satellite missions, primarily using accelerometer measurements and GNSS observations (POD). Additionally, we recently began calculating long-term variations from SLR observations of passive satellites. Combining these techniques yields a dataset spanning approximately 25 years, which is ideal for studying the impact of space weather. During this period, numerous geoeffective CMEs occurred, clearly visible in the density time series. This study emphasizes the effects of severe solar storms in 2024. For instance, the G5 extreme storm in May caused density increases of over 400% at altitudes near 490 km. We present these extreme events and contextualize them within the last two solar cycles. To support further research, we explain our publishing scheme and provide download links.
