Evaluating Trees Crowns Damage for the 2017 Largest Wildfire in Japan Using Sentinel-2A NDMI

Grace Puyang Emang, Yoshiya Touge, So Kazama

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

Abstract

The study shows the use of Normalized Difference Moisture Index (NDMI) acquired by the Sentinel 2A in evaluating the trees crowns damage in Japan largest wildfire in 2017. Ground truth used was from field-collected data on scorch crowns of trees from the burned area. Our results show that difference NDMI (dNDMI) of pre and post-fire images was the best spectral index among Normalize Burn Ratio (NBR), NBR2, Normalize Difference Vegetation Index (NDVI), difference NBR (dNBR), difference NBR2 (dNBR2) and difference NDVI (dNDVI) for spectral sensitivity in differentiating unburned and burned areas. The estimates area for tree crowns damage due to high severity was the largest at 147 hectares (33.1%) and the total calculated burned area was 445.02 hectares which exceed less than 8% of the total burned area reported. This study is needed for Japan because of the different ecosystem and climate with other fire studies conducted in different regions.

Original languageEnglish
Title of host publication2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages6794-6797
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

  • NDMI
  • Sentinel-2A
  • crown damage
  • fire severity
  • wildfire

ASJC Scopus subject areas

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

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