TY - JOUR
T1 - Monitoring heat losses using Landsat ETM+ thermal infrared data - a case study at Kuju fumarolic area in Japan
AU - Mia, Md Bodruddoza
AU - Fujimitsu, Yasuhiro
N1 - Funding Information:
A c k n o w l e d g e m e n t s . We would like to show our sincere gratitude to the G-COE of Kyushu University for funding of this research. We would also like to express our thankful acknowledgement for the MEXT (Ministry of Education, Culture, Sports, Science, and Technology, Japan) Ph.D. scholarship support providing the first author during this study.
PY - 2013/10
Y1 - 2013/10
N2 - To monitor heat losses using Landsat 7 thermal infrared data from 2002 to 2010 within the active fumarolic region of Kuju volcano in Japan, we used the Stefan-Boltzmann equation for radiative heat flux (RHF) estimation. Heat discharge rate (HDR) was calculated by using the relationship coefficient of RHF and HDR, obtained from two previous studies. The highest total RHF was found to be about 57.7 MW in 2002 and the lowest was about 21.1 MW in 2010. We found the highest HDR, of about 384.5 MW, in 2002 and the lowest, of about 140.8 MW, in 2010. The RHF anomalous areas were showing a declining trend during our study period. The relationship between the land surface temperature (LST) above ambient and RHF was, as expected, in a strong correlation for each result during our study period. Overall, our study was able to delineate the declining trend of heat losses that supports a previous study of similar declining trend of HDR using steam maximum diameter method from the active fumarolic region of Kuju volcano.
AB - To monitor heat losses using Landsat 7 thermal infrared data from 2002 to 2010 within the active fumarolic region of Kuju volcano in Japan, we used the Stefan-Boltzmann equation for radiative heat flux (RHF) estimation. Heat discharge rate (HDR) was calculated by using the relationship coefficient of RHF and HDR, obtained from two previous studies. The highest total RHF was found to be about 57.7 MW in 2002 and the lowest was about 21.1 MW in 2010. We found the highest HDR, of about 384.5 MW, in 2002 and the lowest, of about 140.8 MW, in 2010. The RHF anomalous areas were showing a declining trend during our study period. The relationship between the land surface temperature (LST) above ambient and RHF was, as expected, in a strong correlation for each result during our study period. Overall, our study was able to delineate the declining trend of heat losses that supports a previous study of similar declining trend of HDR using steam maximum diameter method from the active fumarolic region of Kuju volcano.
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U2 - 10.2478/s11600-013-0115-3
DO - 10.2478/s11600-013-0115-3
M3 - Article
AN - SCOPUS:84880051770
SN - 1895-6572
VL - 61
SP - 1262
EP - 1278
JO - Acta Geophysica
JF - Acta Geophysica
IS - 5
ER -