The Complementary Use of Optical and SAR Data in Monitoring Flood Events and Their Effects

Proceedings

Psomiadis, Emmanouil¹  Zoka, Melpomeni²  Dercas, Nicholas³ 

[1] Author to whom correspondence should be addressed.;Department of Natural Resources Management and Agricultural Engineering, Agricultural University of Athens, 75 Iera Odos st., Athina 11855, Greece;Presented at the 3rd EWaS International Conference on “Insights on the Water-Energy-Food Nexus”, Lefkada Island, Greece, 27–30 June 2018.

关键词: L;    sat 7;    Sentinel-1;    Sentinel-2;    water indices;    flood mapping;    damage evaluation;   

DOI  :  10.3390/proceedings2110644

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

This paper describes the synergetic use of earth observation satellites optical and radar data to detect flooded areas and explore the impacts of the flood event. A flash flood episode took place in May 2016, in the central-eastern part of West Thessaly (Central Greece). A Landsat-7 ETM+ and a Sentinel-1 SAR image were acquired. For Landsat-7 several water indices were applied and for the Sentinel-1 a threshold method was implemented. Furthermore, Sentinel-2 images were utilized so as to record the land use/cover of the flooded area. The inundated areas and the affected cultivations were delineated with high precision, and the financial effects were evaluated.

【 授权许可】

CC BY