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Recent Advantages in Monitoring Inland Water Using Various Sources of Remote Sensing Imagery from Space

A special issue of Remote Sensing (ISSN 2072-4292). This special issue belongs to the section "Remote Sensing Image Processing".

Deadline for manuscript submissions: closed (20 February 2024) | Viewed by 841

Special Issue Editors


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Guest Editor
Institute of Geodesy and Geophysics, Chinese Academy of Sciences, No.340, Xudong Road, Wuhan 430077, China
Interests: spatiotemporal image fusion; multi-sensor and multi-data fusion and its application; superresolution land cover mapping
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Interactions Sol Plante Atmosphère, UMR 1391 INRAE/Bordeaux Science Agro 71, Avenue Edouard Bourlaux, 33882 Villenave d'Ornon, France
Interests: remote sensing; water cycle; carbon cycle; wetlands
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Monitoring the spatiotemporal dynamics of surface water is essential for understanding water’s impact on climate change and the global ecosystem. Multi-source remote sensing imagery, including optical and Synthetic Aperture Radar (SAR) sensors, have significantly advanced the monitoring of inland surface water at very high spatial and temporal resolutions. However, due to the sensors’ limitations and the environment's complexity, there are often significant challenges in monitoring inland water. Many advanced techniques, including artificial intelligence, image fusion, deep learning, image super-resolution, and gap filling, have been proposed to monitor inland water and analyse the spatiotemporal patterns of surface water. However, several challenges and open problems still await solutions and novel methodologies. The main goal of this Special Issue is to address advanced topics related to:

  • Advanced machine learning and deep learning methods in monitoring inland water;
  • The monitoring of water bodies with increased spatiotemporal resolutions based on data fusion;
  • Monitoring water bodies based on MODIS, Landsat, Sentinel, PlanetScope, etc.;
  • The spatiotemporal mapping of floods;
  • Mapping typical small water bodies in different regions;
  • Water-body-related DEM and surface water occurrence studies;
  • The impact of climate change and human activities on inland water bodies.

Prof. Dr. Xiaodong Li
Dr. Frédéric Frappart
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Remote Sensing is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • inland surface water
  • time series analysis
  • artificial intelligence
  • data fusion
  • small water bodies and floods

Published Papers (1 paper)

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Research

19 pages, 5143 KiB  
Article
Dense Time Series Generation of Surface Water Extents through Optical–SAR Sensor Fusion and Gap Filling
by Kel N. Markert, Gustavious P. Williams, E. James Nelson, Daniel P. Ames, Hyongki Lee and Robert E. Griffin
Remote Sens. 2024, 16(7), 1262; https://doi.org/10.3390/rs16071262 - 03 Apr 2024
Viewed by 590
Abstract
Surface water is a vital component of the Earth’s water cycle and characterizing its dynamics is essential for understanding and managing our water resources. Satellite-based remote sensing has been used to monitor surface water dynamics, but cloud cover can obscure surface observations, particularly [...] Read more.
Surface water is a vital component of the Earth’s water cycle and characterizing its dynamics is essential for understanding and managing our water resources. Satellite-based remote sensing has been used to monitor surface water dynamics, but cloud cover can obscure surface observations, particularly during flood events, hindering water identification. The fusion of optical and synthetic aperture radar (SAR) data leverages the advantages of both sensors to provide accurate surface water maps while increasing the temporal density of unobstructed observations for monitoring surface water spatial dynamics. This paper presents a method for generating dense time series of surface water observations using optical–SAR sensor fusion and gap filling. We applied this method to data from the Copernicus Sentinel-1 and Landsat 8 satellite data from 2019 over six regions spanning different ecological and climatological conditions. We validated the resulting surface water maps using an independent, hand-labeled dataset and found an overall accuracy of 0.9025, with an accuracy range of 0.8656–0.9212 between the different regions. The validation showed an overall false alarm ratio (FAR) of 0.0631, a probability of detection (POD) of 0.8394, and a critical success index (CSI) of 0.8073, indicating that the method generally performs well at identifying water areas. However, it slightly underpredicts water areas with more false negatives. We found that fusing optical and SAR data for surface water mapping increased, on average, the number of observations for the regions and months validated in 2019 from 11.46 for optical and 55.35 for SAR to 64.90 using both, a 466% and 17% increase, respectively. The results show that the method can effectively fill in gaps in optical data caused by cloud cover and produce a dense time series of surface water maps. The method has the potential to improve the monitoring of surface water dynamics and support sustainable water management. Full article
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