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A Systematic Review on Case Studies of Remote-Sensing-Based Flood Crop Loss Assessment

Center for Spatial Information Science and Systems, George Mason University, Fairfax, VA 22030, USA
Author to whom correspondence should be addressed.
Agriculture 2020, 10(4), 131;
Received: 3 March 2020 / Revised: 10 April 2020 / Accepted: 13 April 2020 / Published: 16 April 2020
This article reviews case studies which have used remote sensing data for different aspects of flood crop loss assessment. The review systematically finds a total of 62 empirical case studies from the past three decades. The number of case studies has recently been increased because of increased availability of remote sensing data. In the past, flood crop loss assessment was very generalized and time-intensive because of the dependency on the survey-based data collection. Remote sensing data availability makes rapid flood loss assessment possible. This study groups flood crop loss assessment approaches into three broad categories: flood-intensity-based approach, crop-condition-based approach, and a hybrid approach of the two. Flood crop damage assessment is more precise when both flood information and crop condition are incorporated in damage assessment models. This review discusses the strengths and weaknesses of different loss assessment approaches. Moderate Resolution Imaging Spectroradiometer (MODIS) and Landsat are the dominant sources of optical remote sensing data for flood crop loss assessment. Remote-sensing-based vegetation indices (VIs) have significantly been utilized for crop damage assessments in recent years. Many case studies also relied on microwave remote sensing data, because of the inability of optical remote sensing to see through clouds. Recent free-of-charge availability of synthetic-aperture radar (SAR) data from Sentinel-1 will advance flood crop damage assessment. Data for the validation of loss assessment models are scarce. Recent advancements of data archiving and distribution through web technologies will be helpful for loss assessment and validation. View Full-Text
Keywords: flood; crop; loss assessment; remote sensing; damage assessment flood; crop; loss assessment; remote sensing; damage assessment
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Rahman, M.S.; Di, L. A Systematic Review on Case Studies of Remote-Sensing-Based Flood Crop Loss Assessment. Agriculture 2020, 10, 131.

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