Exploration and monitoring geothermal activity using Landsat ETM + images

Mia, Md. Bodruddoza; Nishijima, Jun; Fujimitsu, Yasuhiro

doi:10.1016/j.jvolgeores.2014.02.008

Cited by 43 publications

(37 citation statements)

References 20 publications

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“…Nakadake craters are the most active zones of this volcano, which has a repetitive eruption history [4,5]. There are also three other thermal manifestations of this volcano, namely, the Yunotani, Yoshioka, and Jigoku-Tarutama hot springs, as west zone geothermal features [6]. The Nakadake crater erupted black ash during the first eruption period [4].…”

Section: Introductionmentioning

confidence: 99%

“…There is a lake about 200 m in diameter in the Nakadake crater named Yudamari [6,9]. The temperature of the lake water is almost 60 °C in the calm period and is much higher (if the water even exists) in the active period.…”

Section: Introductionmentioning

confidence: 99%

“…The heat discharge rate (HDR) from this volcanic zone from 2002 to 2011 was studied for the first time recently using single thermal band images from Landsat TM/ETM+ in spite of image gaps after 2003, and an HDR value of ca. 350-600 MW was obtained [6]. Although some studies of thermal activity using ground or airborne imaging, video camera imaging, and thermal single band satellite imaging exist, no study based on multithermal band satellite images, such as Landsat 8 TIRS or ASTER sensor images had been done.…”

Section: Introductionmentioning

confidence: 99%

“…Low-resolution satellite images, namely, MODIS, NOAA-AVHRR, MSG-SEVIRI images, taken during or after the eruption, are mostly used for thermal anomalies, ash detection, or eruption monitoring of active volcanoes [18][19][20][21]. Most notably, Landsat TM/ETM+ sensors have a long history of volcano or geothermal studies [6]. The major limitations of Landsat TM/ETM+ images are single thermal bands, image gaps in the ETM+ sensor after 2003, and the non-availability of Landsat TM images after 2009 of the study area.…”

Section: Introductionmentioning

confidence: 99%

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Thermal Activity Monitoring of an Active Volcano Using Landsat 8/OLI-TIRS Sensor Images: A Case Study at the Aso Volcanic Area in Southwest Japan

2017

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Thermal remote sensing is currently an emerging technique for monitoring active volcanoes around the world. The study area, the Aso volcano, is currently the most active and has erupted almost every year since 2012. For the first time, Landsat 8 TIRS thermal data were used in this study area to evaluate and monitor the recent thermal status of this volcano, situated in Southwest Japan, from 2013 to 2016 using four sets of images. The total heat discharged rate (HDR), radiative heat flux (RHF), land surface temperature (LST), and land cover (LC) were evaluated, and the relationship between them was determined, to understand the thermal status of the study area. We used the NDVI (normalized difference vegetation index) for land cover, the NDVI-threshold method for emissivity, the split-window algorithm for LST, and the Stefan-Boltzmann equation for radiative heat flux estimation in this study. The total heat discharge rate was computed using a relationship coefficient of RHF and HDR here. The highest HDR was obtained in 2013, at about 4715 MW, and was the lowest in 2016, at about 3819 MW. The total heat loss showed a declining trend, overall, from 2013 to 2016. The highest pixel RHF was in 2013 and the lowest was in 2014; after that, it increased gradually until 2016, coinciding with the LST of this study area. LC showed that, with decreasing heat loss, the vegetated coverage increased and bare land or mixed land decreased, and vice versa. From the spatial distribution of RHF, we saw that, within the Nakadake craters of the Aso volcano, Crater 1 was the most active part of this volcano throughout the study period, and Crater 3 was the most active after 2014. We inferred that the applied methods using the continuous Landsat 8 TIRS data showed an effective and efficient method of monitoring the thermal status of this active volcano.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Thermal Activity Monitoring of an Active Volcano Using Landsat 8/OLI-TIRS Sensor Images: A Case Study at the Aso Volcanic Area in Southwest Japan

2017

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“…Tutupan lahan menunjukkan hubungan yang berbanding terbalik dengan aliran panas pada suatu daerah. Hal ini berarti bahwa daerah yang ditutupi oleh lahan-lahan campuran mengindikasikan daerah tersebut lebih aktif secara termal dibandingkan dengan daerah yang ditutupi oleh lahan vegetasi [15].…”

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