Conference
A novel index for temporal stability analysis in space and time of sar-derived scenes
| العنوان: | A novel index for temporal stability analysis in space and time of sar-derived scenes |
|---|---|
| المؤلفون: | Molinari M. E., Monti-Guarnieri A., Manzoni M. |
| المساهمون: | Molinari, M. E., Monti-Guarnieri, A., Manzoni, M. |
| بيانات النشر: | International Society for Photogrammetry and Remote Sensing |
| سنة النشر: | 2020 |
| المجموعة: | RE.PUBLIC@POLIMI - Research Publications at Politecnico di Milano |
| مصطلحات موضوعية: | Change Detection, Coherence, Dunes, Sand Mitigation, SAR, Temporal Stability Index |
| الوصف: | Detecting temporal changes is one of the most important applications of satellite sensors. In recent years, the increasing availability of regular time-series of SAR imagery, provided by the Sentinel-1 mission of the European Space Agency (ESA), has drawn increasing attention to these techniques, especially in earth environment monitoring and risk management. Within this paper, a coherent change detection analysis for evaluating the risk due to movements of dunes and sand sheets in desertic areas is proposed. To this purpose, we introduce a novel, coherence-based index, named Temporal Stability Index (TSI), that is suited for characterizing the percentage of stability of a target with time. TSI maps can be generated over areas as wide as hundreds of kilometers, in a short time, and mostly by exploiting available software tools (plus some simple coding). The information provided is complementary to the average of the short-term coherence, here shown. Results of analysis performed on two desertic regions (the United Arab Emirates and Egypt) document the usefulness of TSI for the identification of dune movements and areas subject to sand accumulation, supporting risk mitigation measures. |
| نوع الوثيقة: | conference object |
| اللغة: | English |
| Relation: | ispartofbook:International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives; 2020 24th ISPRS Congress - Technical Commission III; volume:43; issue:3; firstpage:1577; lastpage:1583; numberofpages:7; journal:INTERNATIONAL ARCHIVES OF THE PHOTOGRAMMETRY, REMOTE SENSING AND SPATIAL INFORMATION SCIENCES; http://hdl.handle.net/11311/1166710; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85091183903 |
| DOI: | 10.5194/isprs-archives-XLIII-B3-2020-1577-2020 |
| الاتاحة: | http://hdl.handle.net/11311/1166710 https://doi.org/10.5194/isprs-archives-XLIII-B3-2020-1577-2020 |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.E0E9100C |
| قاعدة البيانات: | BASE |
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