Natural Disaster and Coastal Geomorphology

Haruyama, Shigeko; Sugai, Toshihiko

doi:10.1007/978-3-319-33814-9

Cited by 5 publications

References 28 publications

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Monitoring Suspended Particle Matter Using GOCI Satellite Data After the Tohoku (Japan) Tsunami in 2011

Minghelli

Lei²,

Charmasson

et al. 2019

IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing

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The Fukushima Daiichi nuclear disaster that occurred on March 11, 2011 was caused by the Tohoku tsunami which was itself triggered by the devastating 9.0Mw moment magnitude earthquake. The present study investigates spatial and temporal changes of Suspended Particulate Matter (SPM) content in the NorthEastern part of Japan (Pacific Ocean) using a geostationary ocean color sensor. The Geostationary Ocean Color Imager (GOCI), which is centered on the Korean peninsula but could also observe the Japanese area, is able to acquire 8 images per day, thus allowing the analysis of rapid daily changes in water mass. The analysis of GOCI data shows that SPM concentration notably increased both along the coast and within the Bay of Sendai shortly after the tsunami. Motionless patterns of SPM were observed at 2, 14, 25 and 37 km from the coast. It is shown that SPM concentration rapidly decreased one month later. The SPM concentration did not remain high the following year, contrary to what was observed for the Sumatra Tsunami in 2004. The origin of SPM is also investigated in this study. Our analysis suggests that some of the SPM originates from the resuspension of bottom sediments due to the reflection of the tsunami on the coastline that leads to the migration of marine particles towards the sea surface. The fate of the SPM concentration is then discussed based on the analysis of meteorological conditions, river discharge and tsunami wave properties.

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Monitoring Suspended Particle Matter Using GOCI Satellite Data After the Tohoku (Japan) Tsunami in 2011

Minghelli

Lei²,

Charmasson

et al. 2019

IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing

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Suspended Particulate Matter Monitoring with GOCI Images After the Tohoku Tsunami (March 2011)

Minghelli

Lei

Charmasson³

et al. 2018

2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO)

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Spatio-Temporal Land-Use/Land-Cover Change Dynamics in Coastal Plains in Hangzhou Bay Area, China from 2009 to 2020 Using Google Earth Engine

Zhao

Xiong

et al. 2021

Land

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Land-use classification is fundamental for environmental and water resource evaluation in coastal plain areas. However, comprehensive remote sensing image-based land-use analysis is challenged by the lack of massive remote sensing images and the massive computing power of large-scale server systems. In this paper, the spatial-temporal land-use change characteristics of the Hangzhou Bay area coastal plain are investigated on the Google Earth Engine platform. The proposed model uses a random forest algorithm to assist the land-use classification. The dataset is selected from the year 2009 to 2020 and classified with an average classification accuracy of 89% and Kappa coefficient of 88%. The results show that the land use in the selected region is affected by urbanization, the balance of cultivated land occupation and compensation, construction of economic development zone, and other activities. The investigation also shows that in the past 12 years, land use has changed rapidly, and each land-use type maintains the dynamic balance of occupation and compensation. Although the overall land-use distribution is stable, the information entropy fluctuates at a high level, with an average value of 1.15, and the multi-year average value of equilibrium is as high as 0.83. The driving force of land-use change is analyzed and accounted as demographics and human population dynamics, social-economic development, urbanization, and coupling effects of the above-mentioned factors.

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Natural Disaster and Coastal Geomorphology

Cited by 5 publications

References 28 publications

Monitoring Suspended Particle Matter Using GOCI Satellite Data After the Tohoku (Japan) Tsunami in 2011

Monitoring Suspended Particle Matter Using GOCI Satellite Data After the Tohoku (Japan) Tsunami in 2011

Suspended Particulate Matter Monitoring with GOCI Images After the Tohoku Tsunami (March 2011)

Spatio-Temporal Land-Use/Land-Cover Change Dynamics in Coastal Plains in Hangzhou Bay Area, China from 2009 to 2020 Using Google Earth Engine

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