anticache

Kolloquium Satellitennavigation: Vortrag von Prof. Kristine Larson "Environmental Sensing with Reflected GPS Signals"

12.07.2017


Although primarily used in geodesy for measuring precise positions, data from GPS networks can also be used to monitor the terrestrial water cycle. Rather than using the “direct” signal, GPS Interferometric Reflectometry (GPS-IR) takes advantage of the “reflected” signal, which is an error source for geodesists. We have developed retrieval algorithms for GPS SNR data that demonstrate GPS-IR is sensitive to surface soil moisture, vegetation water content, snow depth, and water levels. GPS-IR has a footprint of ∼1000 m2 at most sites. A significant advantage of GPS-IR is that data from existing GPS networks operated by geodesists and surveyors can be used for the products. This provides a source of cost-effective instrumentation for satellite validation and climate studies. This presentation will provide an overview of the GPS-IR methodology and show examples of reflection products available on a daily basis for a network of more than 400 sites in the western United States (http://xenon.colorado.edu/portal).

Prof. Kristine Larson von der University of Colorado in Boulder kann als die Erfinderin der Nutzung von GPS zur Fernerkundung der Umgebung zu nutzen, z.B. für die Bestimmung von Bodenfeuchte, Schneehöhe, Vegetation. Thema ist: Wie kann man Multipath als Signal nutzen. Sie ist zudem bekannt für ihre schönen und didaktischen Vorträge. Sollte man nicht verpassen!

Datum und Zeit: Mittwoch, den 12. Juli 2017, 17:15– 18:00 Uhr

Ort: Technische Universität München Room 0790

Co-Organisation: Christoph Günther, Urs Hugentobler, Bernd Eissfeller, Roland Pail, Thomas Wunderlich, Patrick Henkel