c52d745f-586e-4d31-9da9-ddc2b411aee5 ee14a6a6-7e17-4eea-8cca-d50ff94f5a9c Michele Manunta Italian National Reserach Council (CNR) Istituto per il rilevamento elettromagnetico dell'ambiente (IREA) +39 081 76206 11 +39 081 570 5734 Via Diocleziano, 328 Naples NA 80124 Italy manunta.m@irea.cnr.it http://www.irea.cnr.it/ Francesca Ardizzone Italian National Reserach Council (CNR) Research Istitute of Geo-hydrological Protection (URPI) +39 075 5014 410 +39 075 5014 420 Via della Madonna Alta, 126 Perugia PG 06128 Italy francesca.ardizzone@irpi.cnr.it 2017-05-12T16:02:17 ISO 19115:2003/19139 1.0 WGS 1984 Valle d'Aosta Region Envisat deformation measurements 2015-11-20 Relatively to the Valle d’Aosta region test site, a space-borne analysis, using the DInSAR technique, was done using the ESA’s Grid Processing On-Demand (G-POD) service. The ASAR-Envisat dataset, available through the Virtual Archive 4 of ESA (by the Category-1A project, part of the ESA Geohazard Supersites initiative), was processed by using the G-POD service. The SAR dataset, made of 38 images acquired from ascending orbit (track 301) between June 2004 and November 2010, has been analyzed with the SBAS-DInSAR technique. The ASAR-Envisat satellite acquires images characterized by: - Band acquisition: C Band - Wavelength (cm): 5.6 - Incident angle (°): 23° - Azimuth/ground range resolution (m): ≈ 4/20 - Revisit time (days): 35 - Life status: 2002 – 2010 - Space agency: ESA Regarding the G-POD threshold setting of the SBAS processing, the following parameters were used: - Max Perpendicular Baseline (m): 400 - Max Temporal Baseline (days): 1500 - Ground Pixel Dimension (m): 40 - Coherence Threshold: 0.8 - Area of Interest (AOI): entire frame - REF point: Lat. 45.737049 – Lon. 7.31899 The achieved SBAS measurements are provided in geocoded coordinates (Lat./Lon. and UTM WGS84), and are reported in an ASCII file. The SBAS results, relevant to the entire frame (normally around 100x100 km), have an accuracy of 1 mm/yr concerning the mean velocity measurements, and 5 mm for the deformation measurements [Casu et al., 2006] Provide ASAR-Envisat deformation maps and associated time series for the Valle d’Aosta region test site. Carry out a critical analysis of the possibility of using space-borne DInSAR techniques to obtain multi-decadal time series of ground deformations for landslide areas, to be correlated with meteorological and climatic variables. Martina Cignetti Italian National Research Council (CNR) Research Institute of Geo-hydrological Protection (IRPI) +39 0113977831 Strada delle Cacce, 73 Turin TO 10135 Italy martina.cignetti@irpi.cnr.it Andrea Manconi Italian National Research Council (CNR) Research Institute of Geo-hydrological Protection (IRPI) +39 011/3977829 +39 011/3977821 Strada delle Cacce, 73 Turin TO 10135 Italy andrea.manconi@irpi.cnr.it http://gmg.irpi.cnr.it https://geoportal.mountaingenius.org/geonetwork/srv/eng/resources.get?uuid=c52d745f-586e-4d31-9da9-ddc2b411aee5&fname=SECOND_TASK_VdA_s.png thumbnail png https://geoportal.mountaingenius.org/geonetwork/srv/eng/resources.get?uuid=c52d745f-586e-4d31-9da9-ddc2b411aee5&fname=SECOND_TASK_VdA.jpeg large_thumbnail jpeg NEXTDATA HAMMER project Landslide DInSAR analysis ASAR-Envisat satellite Valle d'Aosta Region Northwest Italy CNR IRPI CNR IREA geoscientificInformation 2002 2010 6.1083984375 19.3798828125 36.58447265625 47.83447265625 You can customize the template to suit your needs. You can add and remove fields and fill out default information (e.g. contact details). Fields you can not change in the default view may be accessible in the more comprehensive (and more complex) advanced view. You can even use the XML editor to create custom structures, but they have to be validated by the system, so know what you do :-) WWW:LINK-1.0-http--link https://geoportal.mountaingenius.org/geonetwork/srv/en/resources.get?uuid=c52d745f-586e-4d31-9da9-ddc2b411aee5&fname=&access=private WWW:DOWNLOAD-1.0-http--download OGC:WMS-1.1.1-http-get-map