Satellite-based damage assessment of rice growing areas after the 2011 Tsunami in Japan

Nguyen Thanh Son; Chi Farn Chen; Cheng Ru Chen

Satellite-based damage assessment of rice growing areas after the 2011 Tsunami in Japan

Nguyen Thanh Son, Chi Farn Chen, Cheng Ru Chen

Center for Space and Remote Sensing Research

Research output: Contribution to conference › Paper › peer-review

Abstract

The occurrence of earthquake and tsunami on 11 March 2011 in Japan's Pacific coast caused damaged infrastructure and rice growing areas. This study aimed to assess the rice growing areas damaged due to this catastrophic event using the 2011 MODIS data. The methods used to process the data comprised three main steps: (1) data preprocessing to create the filtered time-series enhanced vegetation index 2 (EVI2) data, (2) rice crop mapping using the dynamic time warping (DTW) method, (3) accuracy assessment of the mapping results. The mapping results validated using the ground reference data indicated an overall accuracy of 84.3% and a Kappa coefficient of 0.69, respectively. The results were also compared with the government's rice area statistics, indicating a close correlation between the two datasets (R² = 0.86). This study demonstrates the applicability of MODIS 250 m data and DTW for rice damage assessment in the study region.

Original language	English
State	Published - 2015
Event	36th Asian Conference on Remote Sensing: Fostering Resilient Growth in Asia, ACRS 2015 - Quezon City, Metro Manila, Philippines Duration: 24 Oct 2015 → 28 Oct 2015

Conference

Conference	36th Asian Conference on Remote Sensing: Fostering Resilient Growth in Asia, ACRS 2015
Country/Territory	Philippines
City	Quezon City, Metro Manila
Period	24/10/15 → 28/10/15

Keywords

Dynamic time warping
Japan's tsunami and earthquake
MODIS
Rice

Cite this

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title = "Satellite-based damage assessment of rice growing areas after the 2011 Tsunami in Japan",

abstract = "The occurrence of earthquake and tsunami on 11 March 2011 in Japan's Pacific coast caused damaged infrastructure and rice growing areas. This study aimed to assess the rice growing areas damaged due to this catastrophic event using the 2011 MODIS data. The methods used to process the data comprised three main steps: (1) data preprocessing to create the filtered time-series enhanced vegetation index 2 (EVI2) data, (2) rice crop mapping using the dynamic time warping (DTW) method, (3) accuracy assessment of the mapping results. The mapping results validated using the ground reference data indicated an overall accuracy of 84.3% and a Kappa coefficient of 0.69, respectively. The results were also compared with the government's rice area statistics, indicating a close correlation between the two datasets (R2 = 0.86). This study demonstrates the applicability of MODIS 250 m data and DTW for rice damage assessment in the study region.",

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T1 - Satellite-based damage assessment of rice growing areas after the 2011 Tsunami in Japan

AU - Son, Nguyen Thanh

AU - Chen, Chi Farn

AU - Chen, Cheng Ru

PY - 2015

Y1 - 2015

N2 - The occurrence of earthquake and tsunami on 11 March 2011 in Japan's Pacific coast caused damaged infrastructure and rice growing areas. This study aimed to assess the rice growing areas damaged due to this catastrophic event using the 2011 MODIS data. The methods used to process the data comprised three main steps: (1) data preprocessing to create the filtered time-series enhanced vegetation index 2 (EVI2) data, (2) rice crop mapping using the dynamic time warping (DTW) method, (3) accuracy assessment of the mapping results. The mapping results validated using the ground reference data indicated an overall accuracy of 84.3% and a Kappa coefficient of 0.69, respectively. The results were also compared with the government's rice area statistics, indicating a close correlation between the two datasets (R2 = 0.86). This study demonstrates the applicability of MODIS 250 m data and DTW for rice damage assessment in the study region.

AB - The occurrence of earthquake and tsunami on 11 March 2011 in Japan's Pacific coast caused damaged infrastructure and rice growing areas. This study aimed to assess the rice growing areas damaged due to this catastrophic event using the 2011 MODIS data. The methods used to process the data comprised three main steps: (1) data preprocessing to create the filtered time-series enhanced vegetation index 2 (EVI2) data, (2) rice crop mapping using the dynamic time warping (DTW) method, (3) accuracy assessment of the mapping results. The mapping results validated using the ground reference data indicated an overall accuracy of 84.3% and a Kappa coefficient of 0.69, respectively. The results were also compared with the government's rice area statistics, indicating a close correlation between the two datasets (R2 = 0.86). This study demonstrates the applicability of MODIS 250 m data and DTW for rice damage assessment in the study region.

KW - Dynamic time warping

KW - Japan's tsunami and earthquake

KW - MODIS

KW - Rice

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M3 - 會議論文

AN - SCOPUS:84964034418

T2 - 36th Asian Conference on Remote Sensing: Fostering Resilient Growth in Asia, ACRS 2015

Y2 - 24 October 2015 through 28 October 2015

ER -

Satellite-based damage assessment of rice growing areas after the 2011 Tsunami in Japan

Abstract

Conference

Keywords

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