3HAZ – WP3 – Final report3HAZ – WP3 – Final report

P. Briole, O. Charade, A. Nercessian (IPGP)P. Briole, O. Charade, A. Nercessian (IPGP)A. Avallone (INGV)A. Avallone (INGV)

H. Kontoes, P. Elias (NOA)H. Kontoes, P. Elias (NOA)R. Charara, C. Vigny (ENS)R. Charara, C. Vigny (ENS)

28 May 200728 May 2007

Main activities

• WP3.a: Repeated GPS

WP3.b: Continuous GPS

• WP3.c: Systematic interferometry analysis of incoming SAR images

• WP3.d : Modelling

Summary of geodetic activities (1)

Permanent GPS stations renewed

Re-observation of 60 GPS points in a 50km radius around Patras

Installation of two GPS stations at UPAT (1 with real-time)

Kinematic GPS in the Panagopoula landslide

PS-InSAR studies

Real-time GPS data broadcasted from TRIZ

Kinematic GPS levelling

Summary of geodetic activities (2)

ERS SAR data acquired in 3 different frame was processed with conventional InSAR and with PS techniques

Deliverables

• 8: Data base for continuous GPS √• 42: Deformation of the rift from GPS √• 43: Two new continuous GPS stations √• 44: Set of stable pixels for InSAR long term stability √• 45: Elastic models of the observed deformations √• 86: Evaluation of a daily kinematic GPS system on

commercial railway traffic on road and landslide only• 94: Modem for the new GPS stations √• 105: Web page updated with selection of continuous

records and selected events from the GPS arrays √

D8: Data base for continuous GPS

Raw data andtime series of coordinates

available on line

D42: Deformation of the rift from GPS

A data base of GPS points was created to contain both the description of the points and the coordinates at all epochs of observations

D43: New stations

- 2 new stations at Patras (one standard, one with real-time differential

- 5 “old” stations renewed with new receivers

Location of the CRL GPS stations and view of the LIDO station

D44: Set of stable pixels• Conventional InSAR used ROI-PAC

software• PS-Insar studies used ROI-PAC post-

processing and new algorithms developed at NOA

Aigion area

Itea area

Map of Permanent scatterers (colours indicate quality of PS, low=green, high=red)

D45: Elastics models of the observed deformation

D86: Kinematic GPS

• 18 points accurately positioned in the Panagopoula landslide. Kinematic profile available for further studies and airphoto registration

• More kinematic GPS levelling performed by car

D94: Modem for the new GPS stations

The two new GPS stations and TRIZ are accessible remotely via internet.

- TRIZ broadcasts real-time data- PAT1 receivers real-time data and provides real-time differential coordinates

Trizonia GPS receiver and web interface

D105: Web site for Geodesy in the CRL

Information about GPS and InSAR work and results of 3HAZ at http://crl.gpscope.eu