Three-dimensional histogram method for Asian dust identification using MODIS images

Izumi Nagatani, Jun Ichi Kudoh

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

3 Citations (Scopus)

Abstract

Asian dust storm is a meteorological phenomenon in East Asia, which is originated in arid and semi-arid region such as Taklamakan and Gobi deserts. The heavy Asian dusts are occasionally carried by strong winds to Korea, Japan, even to North America. These dusts cause respiratory disease, transportation disturbances, and other disruptions of social and economic activities. Monitoring these dust transports is essential and remote sensing technique and fast computer visualization are required. However, it is not easy to identify Asian dust over Japan Sea, which is relatively low dense and coexists with cloud, fog, and other haze. To overcome this issue, we used a three-dimensional histogram technique developed by J. Kudoh. The original was developed for identifying land, cloud, sea, fog, etc., from NOAA AVHRR reflectances. Instead, we used three MODIS indices, which are Brightness Temperature Difference (BTD), Normalized Difference Dust Index (NDDI), and Normalized Difference Vegetation Index (NDVI). The BTD is sensitive to high-density dust but less sensitive to low-dense. NDDI is hard to discriminate Asian dust from bare land. Using the three indices, the proposed method identified Asian dust very well. Compared to meteorological observing stations, it is found that the observation of low-density dust is required for Japan and the proposal method is useful for this purpose. Advantages of the three-dimensional histogram method are fast detection and identification capabilities of Asian dust from various dust behaviors and this is useful for automatic dust detection.

Original languageEnglish
Title of host publication32nd Asian Conference on Remote Sensing 2011, ACRS 2011
Pages314-319
Number of pages6
Publication statusPublished - 2011 Dec 1
Event32nd Asian Conference on Remote Sensing 2011, ACRS 2011 - Tapei, Taiwan, Province of China
Duration: 2011 Oct 32011 Oct 7

Publication series

Name32nd Asian Conference on Remote Sensing 2011, ACRS 2011
Volume1

Other

Other32nd Asian Conference on Remote Sensing 2011, ACRS 2011
CountryTaiwan, Province of China
CityTapei
Period11/10/311/10/7

Keywords

  • Asian dust identification
  • Image feature extraction
  • Three-dimensional histogram

ASJC Scopus subject areas

  • Computer Networks and Communications

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