Utilizing the CR-network in Iceland for an automated interferometric processing chain - Test case with ERS-Tandem data
Karlheinz Gutjahr(1) , Kilian Scharrer(2)
, and Ulrich Münzer(3)
(2) Ludwig-Maximilians-University, Luisenstraße 37, D-80333 Munich, Germany
(3) Ludwig-Maximilians-University, Luisenstraße 37, D-80333 Munich, Germany
The monitoring of geodynamic processes related to geothermal, seismic, and volcanic activity and of climate change in the highly active Neovolcanic Zone of Southern Iceland is in the focus of several ESA-projects since 1992.
Within the project AO.2 D 116 a total amount of 30 corner reflectors (CR) were erected in the years 1995 and 1998 around three test sites in South Iceland: the central volcano Hekla, the plateau glacier Mýrdalsjökull with the subglacial Katla Caldera and the Vatnajökull ice cap covering several fissure swarms and central volcanoes.
The experiences of the ENVISAT-ASAR monitoring (ESA project ID 142) during the recent Grímsvötn eruption (01.11. – 06.11.2004) at the Vatnajökull glacier revealed the basic necessity of an automated SAR processing chain, on the way of pushing the monitoring towards a real time service.
In the paper we analyse the main processing steps of an interferometric phase processing with respect to automation and present results of a first case study with ERS-Tandem data of the Mýrdalsjökull test site.