干旱区生态环境知识资源中心(Arid): Exploring the geothermal potential of Peut Sagoe volcano using Landsat 8 OLI/TIRS images

Arid

DOI	10.1016/j.geothermics.2022.102499
	Exploring the geothermal potential of Peut Sagoe volcano using Landsat 8 OLI/TIRS images
	Zaini, Nasrullah; Yanis, Muhammad; Abdullah, Faisal; Van der Meer, Freek; Aufaristama, Muhammad
通讯作者	Zaini, N
来源期刊	GEOTHERMICS
ISSN	0375-6505
EISSN	1879-3576
出版年	2022
卷号	105
英文摘要	Thermal infrared remote sensing is an emerging technique to determine thermal anomalies in geothermal and volcanic areas. This study investigates the potential of thermal infrared imaging to observe geothermal prospecting and thermal activity in the Peut Sagoe volcano. The volcano has not been completely studied because it is located in a remote frontier area surrounded by dense rainforest and high terrain conditions. We used operational land imager (OLI)/thermal infrared sensor (TIRS) images of Landsat 8 acquired from 2014 to 2020 to get the actual hydrothermal mineral alteration, vegetation changes (Normalized Difference Vegetation Index; NDVI), and land surface temperature (LST) of the volcanic areas, which correlate with geothermal characteristics, such as fumarole and warm ground that exist on the surface of Peut Sagoe volcano. The combination of band ratios such as 7/5, 5/4, and 6/7 effectively estimates the hydrothermal mineral alteration in the volcanic area, which is dominated by several minerals, such as clay, iron oxide, and OH/H2O-, SO4-, and CO-bearing minerals. Result analyses of low NDVI and high LST values are related to the vegetation changes and thermal status of the crater area, the top of the volcano, and the warm ground on the western side of the mountain. These identities demonstrate the geothermal potential of the Peut Sagoe volcano. The LST data of OLI/TIRS images indicate increased thermal activity of the volcano from 22-26 degrees C in 2014 to 30-35 degrees C in 2017. However, the temperature of the volcano relatively decreased to 25 degrees C in 2015 and 2020. In order to reduce the solar effects, the LST data from Landsat were also validated with ASTER data using a combination of night and daytime images. The results show a pattern of high thermal anomalies from 2014 - 2020 in several areas suspected of having geothermal manifestations, such as craters and hot springs, the distribution of these anomalies corresponds to LST in Landsat 8 data. Moreover, NDVI values at the potential geothermal location also reduced in 2014 and 2017 due to an increasing underground volcanic activity. Results revealed that remote sense imagery is an effective approach to identifying the geothermal potential and monitoring the thermal status of volcanos in frontier areas.
英文关键词	Peut Sagoe volcano Land surface temperature Thermal infrared Geothermal Vegetation analysis Landsat8OLI TIRS
类型	Article
语种	英语
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000830188200001
WOS关键词	THERMAL INFRARED DATA ; SUMATRAN FAULT ; CENTRAL ACEH ; FIELD ; EXPLORATION ; ANOMALIES ; CHEMISTRY ; GRAVITY ; OASIS
WOS类目	Energy & Fuels ; Geosciences, Multidisciplinary
WOS研究方向	Energy & Fuels ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392960
推荐引用方式 GB/T 7714	Zaini, Nasrullah,Yanis, Muhammad,Abdullah, Faisal,et al. Exploring the geothermal potential of Peut Sagoe volcano using Landsat 8 OLI/TIRS images[J],2022,105.
APA	Zaini, Nasrullah,Yanis, Muhammad,Abdullah, Faisal,Van der Meer, Freek,&Aufaristama, Muhammad.(2022).Exploring the geothermal potential of Peut Sagoe volcano using Landsat 8 OLI/TIRS images.GEOTHERMICS,105.
MLA	Zaini, Nasrullah,et al."Exploring the geothermal potential of Peut Sagoe volcano using Landsat 8 OLI/TIRS images".GEOTHERMICS 105(2022).