Multitemporal InSAR Coherence Analysis and Methods for Sand Mitigation

Dunes and sand sheets motion natural hazard affect many desertic areas worldwide and require careful assessment to develop effective mitigation plans to protect populated sites, infrastructure, and human activities. The study explores the suitability of Synthetic Aperture Radar (SAR) coherent methods to detect desert area instabilities and estimate sand accumulations displacements. The SAR methods have been applied to long time series of images provided by Sentinel-1. Moreover, the research introduces a novel robust index, named Temporal Stability Index, able to characterize the percentage of stability of a target with time. The work reports the experiments performed on the United Arab Emirates (UAE) and Egypt desertic areas and proves the usefulness of SAR coherent methods to support sand mitigation measures.

[1]  O. Bubenzer,et al.  Sand Seas and Dune Fields of Egypt , 2020, Geosciences.

[2]  Chris H. Hugenholtz,et al.  Remote sensing and spatial analysis of aeolian sand dunes: A review and outlook , 2012 .

[3]  E. Seif,et al.  Environmental Hazards of Sand Dunes, South Jeddah, Saudi Arabia: An Assessment and Mitigation Geotechnical Study , 2019, Earth Systems and Environment.

[4]  Giovanna Venuti,et al.  Joint Exploitation of SAR and GNSS for Atmospheric Phase Screens Retrieval Aimed at Numerical Weather Prediction Model Ingestion , 2020, Remote. Sens..

[5]  Offer Rozenstein,et al.  Investigating the backscatter contrast anomaly in synthetic aperture radar (SAR) imagery of the dunes along the Israel-Egypt border , 2016, Int. J. Appl. Earth Obs. Geoinformation.

[6]  R. Bamler,et al.  Synthetic aperture radar interferometry , 1998 .

[7]  M. Liao,et al.  Quantifying the spatio-temporal patterns of dune migration near Minqin Oasis in northwestern China with time series of Landsat-8 and Sentinel-2 observations , 2020 .

[8]  Anthony Freeman,et al.  SAR calibration: an overview , 1992, IEEE Trans. Geosci. Remote. Sens..

[9]  Sebastien Leprince,et al.  Retrieving sand dune movements using sub-pixel correlation of multi-temporal optical remote sensing imagery, northwest Sinai Peninsula, Egypt , 2012 .

[10]  Sayed M. Arafat,et al.  Quantification of Sand Dune Movements in the South Western Part of Egypt, Using Remotely Sensed Data and GIS , 2013 .

[11]  Troy Sternberg,et al.  Climate hazards in drylands: A review , 2013 .

[12]  Magaly Koch,et al.  Using InSAR Coherence for Investigating the Interplay of Fluvial and Aeolian Features in Arid Lands: Implications for Groundwater Potential in Egypt , 2018, Remote. Sens..

[13]  F. El-Baz,et al.  Orbital observations of sand distribution in the Western Desert of Egypt , 1979 .

[14]  M. Hereher,et al.  Sand movement patterns in the Western Desert of Egypt: an environmental concern , 2010 .

[15]  Pieter Vermeesch,et al.  Measuring Sand Dune Migration Rates with COSI-Corr and Landsat: Opportunities and Challenges , 2019, Remote. Sens..

[16]  Zhiwei Han,et al.  Migration of sand dunes on the northern Alxa Plateau, Inner Mongolia, China , 2007 .