Interferometric SAR for Wetland Hydrology: An Overview of Methods, Challenges, and Trends

Hyongki Lee, Ting Yuan, Hanwen Yu, Hahn Chul Jung

Research output: Contribution to specialist publicationArticle


Since 2000, interferometric synthetic-aperture radar (InSAR) has been an effective tool to map 2D water-level changes beneath vegetated wetlands with a high spatial resolution and centimetric accuracy. In the last two decades, SAR images obtained from different wavelengths and polarization modes have been tested across various wetland systems, and InSAR-derived water-level-change maps have improved our understanding of wetland hydrology and hydraulics. In this article, we discuss the feasibility and challenges of applying InSAR to wetland areas, present a comprehensive review of InSAR applications for hydraulic and hydrologic analysis, and discuss future trends.

Original languageEnglish
Number of pages16
Specialist publicationIEEE Geoscience and Remote Sensing Magazine
Publication statusPublished - 2020 Mar

Bibliographical note

Funding Information:
This work was supported, in part, by NASA (grants 80NS-SC18K0434 and 80NSSC20K0152) and the South Korea Ministry of Environment’s Demand Responsive Water Supply Service Program (grant 2019002650004). Some of the Advanced Land Observation Satellite and Advanced Land Observation Satellite-2 images were provided by the Japan Aerospace Exploration Agency (PI number: 3069) and Alaska Satellite Facility.

Publisher Copyright:
© 2013 IEEE.

All Science Journal Classification (ASJC) codes

  • Computer Science(all)
  • Instrumentation
  • Earth and Planetary Sciences(all)
  • Electrical and Electronic Engineering


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