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Indispensable for weather forecasting and climate research
Immerse yourself in the world of science - In our new lecture series "Mission Knowledge", experts from different subject areas present the latest research findings to you once a month and invite you to ask your own questions and discuss them with the experts.
Image gallery
Drei Satelliten im Orbit um die Erde
Deepen your knowledge, get a taste of new research fields and get up close and personal in the scientific dialogue. The lectures take place in the planetarium hall of the Zeiss Large Planetarium and are accompanied by images. We accompany you on your “knowledge mission”!
November 22, 2023: “Navigation satellites: Essential for weather forecasting and climate research”
Dr. Galina Dick, German Research Center for Geosciences GFZ, Potsdam
In recent decades, the use of various remote sensing systems has not only led to an improvement in weather forecasts, but also significantly expanded our understanding of the global climate system. Nevertheless, there are still gaps in our knowledge about important weather and climate processes. For example, our knowledge of the global distribution of water vapor – the most important natural greenhouse gas in the atmosphere – is still insufficient.
An innovative approach to improving water vapor measurements is to use signals from navigation satellites. Since the beginning of the 1990s, the US GPS (Global Positioning System) has been used not only for navigation applications but also for atmospheric observation. In recent years, GPS has been expanded with the European Galileo, the Russian GLONASS and the Chinese Beidou to form a common GNSS (Global Navigation Satellite System) with currently around 120 satellites. GNSS-based methods for water vapor determination have been developed and used operationally at the German GeoResearch Center GFZ in Potsdam for over 20 years, among other things to improve regional and global weather forecasts.
This evening Dr. Galina Dick provides insights into this work at the GFZ in Potsdam and reports how the GNSS data can be used to study the long-term behavior of global water vapor and thus gain important information for characterizing climate change.
Dr. Galina Dick is a scientist and working group leader for geodetic space techniques at the GFZ Potsdam and in the GNSS remote sensing project.
This lecture takes place as part of a cooperation with the German Research Center for Geosciences GFZ, Potsdam.
Other events in this series:
December 6th: “With the MOSAiC floe to the North Pole: Insights into the largest Arctic expedition of our time”
Dr. Stefanie Arndt
