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- W2374988082 abstract "Through numerous comparison experiments and the correlation analysis at different time scales,the present study tried to get the important basis of statistic significance in aspect of the use of real-time relative changes of MODIS BT combined with field ST measurements from thermal infrared anomalies for directly investigating the short and imminent earthquake-related phenomena.Results of correlation analysis show that:1)Significant correlation exists between brightness temperature,air temperature and ground temperature in the view of the longer cycle time scale(monthly mean),even in the case of short cycle(daily means),where the correlation is significantly lower than that of longer cycle,they still have good correlations;2)The correlation between the mean brightness temperature and the surface temperature increases gradually with the increased pixel size involved.This indicates that the atmospheric and environmental effect on brightness temperature is more obvious for single pixel.This effect can be reduced by using mean brightness temperature of pixels in a certain region.In other words,the correlation between mean brightness temperature of pixels in a region and the surface temperature(0cm)is better than that of a single pixel.Consequently,when studying the relative changes in brightness temperature,it is suggested that we should try to avoid using the brightness temperature values of a single pixel;3)The combination of the MODIS brightness temperature at large coverage with surface temperature in field might improve the feasibility and reliability of detection of the thermal IR anomalous change;it has been demonstrated by the significant correlation between the retrieved MODIS BT products and field ST measurements(0cm).In general,this study implies the statistical significance of investigating short and extemporaneous activities of earthquake phenomenon by means of analyzing temporal changes of the retrieved near real-time MODIS brightness temperature products coupled with the measurements of surface temperatures.It should be noted that the specific geographic environments which depend on the changing weather process and the complex geological setting could hamper the extraction of information of the short-term and impending abnormal seismic thermal changes.Therefore,we need to take fully into account the above-mentioned impacts when applying satellite thermal infrared data to earthquake prediction research and designing data processing methods." @default.
- W2374988082 created "2016-06-24" @default.
- W2374988082 creator A5039127636 @default.
- W2374988082 date "2010-01-01" @default.
- W2374988082 modified "2023-09-26" @default.
- W2374988082 title "CORRELATION ANALYSIS BETWEEN MODIS BRIGHTNESS TEMPERATURE AND SURFACE TEMPERATURE PROVIDED BY METEOROLOGICAL STATION" @default.
- W2374988082 hasPublicationYear "2010" @default.
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