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Title: Long term (1975-2016) anomaly of surface latent heat flux (SLHF) over Indian subcontinent: Signatures of early warning of earthquake disasters
Authors: Kumar, Adarsh
Keywords: Latent heat;Hazardous;Earthquake;Atmosphere
Issue Date: Mar-2020
Publisher: NISCAIR-CSIR, India
Abstract: A long-term anomaly study of 42 years (1975-2016) of surface heat flux (SLHF) from the epicentres of the earthquakes over the Indian subcontinent carried out. The results of study revealed anomalous behaviour. On an average, maximum surge of SLHF was found to be 10-15 days before the main earthquake events which were likely due to the ocean atmosphere interaction. This improvement of SLHF before the most earthquake events was considerably attributed to the surge in infrared thermal (IR) temperatures within the epicentral and near surroundings. The abnormal surge in SLHF provides associate early cautionary of a ruinous earthquake during a region, provided there's a decent understanding of the ground noise because of the zonal tides and regional monsoon in surface heat energy flux. A lot of effort has been put to have an understanding of the level of background noise within the epicentral regions of the 10 earthquakes over the Indian Subcontinent during the last 42 years. Latitudinal and longitudinal effects of SLHF anomaly for the ten earthquakes over Indian Subcontinent were studied, which showed that the anomalous behaviour of SLHF before the main earthquake events were somewhat associated only with the coastal earthquake activities.
Page(s): 19-27
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.49(1-2) [March-June 2020]

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