Abstract:Based on the hyperspectral remote sensing data, the influencing factors of CH4 and CO were analyzed and applied to the abnormal determination in Beijing-Tianjin-Hebei region. The correlation coefficient between hyperspectral gas in different terrain and water vapor, temperature, long wave radiation, and air pressure were calculated. It is found that the correlation coefficients on land and ocean have different characteristics. There is a strong negative correlation between CH4 and Co, and the correlation coefficient in basin is greater than that in mountain area and plain area. The results showed that CH4 concentration in terrestrial environment is greatly affected by meteorological factors such as water vapor, temperature, and air pressure, while CO has low correlation coefficient with the parameters due to the influence of marine sources. The recent hyperspectral gas anomaly in Beijing-Tianjin-Hebei region is extracted by RST algorithm. It is found that there is an obvious high-value anomaly in June in the border area of southwest Beijing and Hebei. Through the test of regression equation, it is more likely that the anomaly is caused by meteorological factors, which provides a basis for the earthquake tracking and judgment.