Satellite detection of earthquake thermal infrared precursors in Iran

Autor:	Arun K. Saraf, Swapnamita Choudhury, Sudipta Dasgupta, Vineeta Rawat, Santosh Panda, Priyanka Banerjee, Josodhir Das
Rok vydání:	2008
Předmět:	Atmospheric Science Hydrogeology Deformation (mechanics) Earthquake prediction Anomaly (natural sciences) Thermal Earth and Planetary Sciences (miscellaneous) Magnitude (mathematics) Satellite Geology Seismology Water Science and Technology Shock (mechanics)
Zdroj:	Natural Hazards. 47:119-135
ISSN:	1573-0840 0921-030X
DOI:	10.1007/s11069-007-9201-7
Popis:	Stress accumulated in rocks in tectonically active areas may manifest itself as electromagnetic radiation emission and temperature variation through a process of energy transformation. Land surface temperature (LST) changes before an impending earthquake can be detected with thermal infrared (TIR) sensors such as NOAA-AVHRR, Terra/Aqua-MODIS, etc. TIR anomalies produced by 10 recent earthquakes in Iran during the period of Jun 2002–Jun 2006 in the tectonically active belt have been studied using pre- and post-earthquake NOAA-AVHRR datasets. Data analysis revealed a transient TIR rise in LST ranging 2–13°C in and around epicentral areas. The thermal anomalies started developing about 1–10 days prior to the main event depending upon the magnitude and focal depth, and disappeared after the main shock. In the case of moderate earthquakes (
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::82116d1550aaad1ee83b8794cc2cf178 https://doi.org/10.1007/s11069-007-9201-7 Zobrazit plný text záznamu Full text from SpringerLink