The Westin Pasadena Hotel
Pasadena, California
21-22 September 2009

Report of the TIGIR 2009 Workshop [pdf]

The Troposphere, Ionosphere, GPS, and Interferometric Radar Workshop (TIGIR) brings together experts and stake-holders in synthetic aperture radar and GNSS systems, the data processing and the products they generate. The workshop will examine the wide range of different approaches that have been developed to understand and mitigate the atmospheric “noise” in SAR signals, and establish the current best-practices in atmospheric imaging and mitigation techniques, generate priorities for further investigations, and recommendations for upcoming missions for how best to maximize the utility of the data products they will produce.

The impact of the troposphere and ionosphere on SAR signals has emerged as the single largest factor limiting the ability of these observation systems to reach their full potential for ground motion studies. Ionospheric and tropospheric imaging using SAR and GNSS, and stochastic and deterministic modeling have great potential for correcting media effects on space geodetic systems, however, although many of these approaches have shown promise in particular circumstances, effectiveness and general applicability are yet to be demonstrated. Small amplitude, non-linear and non-periodic ground motion signals abound in geodesy from a wide range of sources, and InSAR holds great promise for giving us new insights into these types of physical phenomena. For a wide spectrum of the signals we might hope to explore, however, the delays induced in the SAR signals by the ionosphere and the troposphere overprint and confuse the interpretation of interferograms. As many major new earth science initiatives have InSAR as a key components, and a new generation of instruments will soon be deployed, it is increasingly important to estimate and reduce the impact of atmospheric noise in order to increase the effectiveness of InSAR as an operational monitoring tool, extend the possibilities for investigations using it, and improve the resolution of the technique and the data products it generates.

Global Ionospheric TEC Map

Weather Model for InSAR

Last modified Wednesday, 17-Feb-2010 23:37:42 UTC