مؤتمر
Updating the subsidence map of Emilia-Romagna region (Italy) by integration of SAR interferometry and GNSS time series: The 2011-2016 period
| العنوان: | Updating the subsidence map of Emilia-Romagna region (Italy) by integration of SAR interferometry and GNSS time series: The 2011-2016 period |
|---|---|
| المؤلفون: | Bitelli G., Bonsignore F., Del Conte S., Franci F., Lambertini A., Novali F., Severi P., Vittuari L. |
| المساهمون: | P. A. Fokker, G. Erkens, Bitelli G., Bonsignore F., Del Conte S., Franci F., Lambertini A., Novali F., Severi P., Vittuari L. |
| بيانات النشر: | Copernicus GmbH |
| سنة النشر: | 2020 |
| المجموعة: | IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
| مصطلحات موضوعية: | Subsidence, Emilia-Romagna region, GNSS, SAR Interferometry |
| الوصف: | The analysis of the vertical movements of the soil in the Po River plane of the Emilia-Romagna Region (Italy) was updated through an interferometric analysis referred to the 2011-2016 time-span. This activity is a continuation of previous studies on the state of knowledge of vertical soil movements in the same area, analyzed firstly by levelling and GNSS and more recently by SAR interferometry for the periods 1992-2000, 2002-2006, 2006-2011, on behalf of the Emilia-Romagna Region. The survey area analysed was approximately 13 300 km2, which corresponds to the territory of the regional plain. The interferometric dataset was calibrated through the use of velocity time series of several permanent GNSS stations. Among the 36 stations analysed, 22 were included in the study area: 16 were used for the calibration and 6 as check points). The velocities required for the calibration of the SAR analysis were calculated in the period following the important seismic events that struck the territory of the Emilia Romagna Region in May 2012. The interferometric analysis was carried out by TRE ALTAMIRA using the SqueeSARTM technology. In particular, in order to update the interferometric dataset to 2016, it was necessary to perform a joint processing of the available RADARSAT-1 data and of the data acquired by the RADARSAT-2 satellite using a specific operating mode of the SqueeSARTM algorithm known as stitching; this approach allowed the joint processing of images acquired in the same geometry by these two satellites. The study of the time series of the GNSS permanent stations used to provide the velocity datum to the interferometric analysis, is described, and the results of the SqueeSARTM interferometric processing are reported. Statistical analyses on the spatial distribution and the type of scatterers have been performed during the screening and validation procedures of the dataset, and for the identification and removal of the outliers. Finally, the resulting map is described in order to analyse the measured soil ... |
| نوع الوثيقة: | conference object |
| وصف الملف: | ELETTRONICO |
| اللغة: | English |
| العلاقة: | ispartofbook:Proceedings of the International Association of Hydrological Sciences; 10th International Symposium on Land Subsidence, TISOLS 2020; volume:382; firstpage:39; lastpage:44; numberofpages:6; serie:PROCEEDINGS OF IAHS; alleditors:P. A. Fokker, G. Erkens; http://hdl.handle.net/11585/767636Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85088225310; https://piahs.copernicus.org/articles/382/39/2020Test/ |
| DOI: | 10.5194/piahs-382-39-2020 |
| الإتاحة: | https://doi.org/10.5194/piahs-382-39-2020Test http://hdl.handle.net/11585/767636Test https://piahs.copernicus.org/articles/382/39/2020Test/ |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.7456DB49 |
| قاعدة البيانات: | BASE |
| DOI: | 10.5194/piahs-382-39-2020 |
|---|