Paddy Field Mapping in Eastern Part of Asia Using Sentinel-1 and Sentinel-2

Shimpei Inoue, Akihiko Ito, Chinatsu Yonezawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The total area and spatial distribution of paddy fields greatly affect the regional budget of methane (CH4), the second most influential greenhouse gas contribute to global warming after CO2. Therefore, reliable broad-scale paddy field maps are essential for improving the accuracy of regional methane budget estimations. Here, using two types of satellite images, Sentinel-l Synthetic Aperture Radar (SAR) and Sentinel-2 optical images, we developed a broad scale paddy field map for eastern part of Asia in 2018 with a 30 m spatial resolution. The method used in this study combines the robustness of Sentinel-l SAR images to cloud cover with the high accuracy of Sentinel-2 optical images in extracting irrigated paddy fields. By comparing with statistic values of paddy field areas and existing paddy field maps, our paddy field map shows a great potential for reproducing paddy field areas at country scale.

Original languageEnglish
Title of host publication2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages5171-5174
Number of pages4
ISBN (Electronic)9781728163741
DOIs
Publication statusPublished - 2020 Sep 26
Event2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020 - Virtual, Waikoloa, United States
Duration: 2020 Sep 262020 Oct 2

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)

Conference

Conference2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020
CountryUnited States
CityVirtual, Waikoloa
Period20/9/2620/10/2

Keywords

  • mapping
  • Paddy field
  • Sentinel-1
  • Sentinel-2

ASJC Scopus subject areas

  • Computer Science Applications
  • Earth and Planetary Sciences(all)

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