GIS AND REMOTE SENSING TECHNOLOGIES FOR TOPOGRAPHIC CHARACTERIZATION OF SEISMIC STATIONS

摘要: Individual analysis of the landscape in radius size 50m shows that for IGUT stations, about 43% of the stations are classified as gentle slopes, 18% as ridges, 16% as upper slopes. Twenty-three percent of the remaining stations are distributed between valley, lower slope and steep slope classes. At the same radius, 43% of the IIEES stations are classified as ridges, 13% as lower slopes, 13% as gentle slopes and the rest of the stations are distributed between the remaining 3 categories (valley, steep slope and upper slope). At the GSI network (with almost homogeneously distribution between recognized categories), thirty-three percent of the stations are classified as valleys, 20% as gentle slopes, 17% as ridges, 13% as steep slopes, 10% as upper slopes and 7% as lower slopes. Overall, 23% of the all stations are located in ridge areas based on TPI analysis with 50m radius. The ridge position manifests itself in …