2008年汶川地震重灾区本底数据

该数据为汶川地震重灾区地质灾害易发性本底数据，包含震前多期次TM合成影像、地形地貌、地质构造、岩性、人工活动、地震烈度MI合成图像，空间分辨率30米。其中除地震烈度为震后获取为，其余数据均可在震前准备好，并在地震发生后基于仪器获取的烈度信息，快速合成用于震后地质灾害易发性快速评价。This dataset is the background data for geological hazard susceptibility assessment in the severely affected regions of the Wenchuan earthquake. It includes pre-earthquake multi-temporal TM composite images, topography and geomorphology data, geological structures, lithology, human activities, and seismic intensity MI composite images, with a spatial resolution of 30 meters. Except for the seismic intensity data which was acquired post-earthquake, all other datasets can be prepared prior to the earthquake. After the earthquake occurs, these data can be rapidly composited using the intensity information obtained via instruments to enable rapid post-earthquake geological hazard susceptibility evaluation.

搜集汇总

背景与挑战

背景概述

该数据集是2008年汶川地震重灾区的本底数据，用于震后地质灾害易发性快速制图，包含震前TM数据、地形、岩性、断层、人类活动和地震参数等多源信息，空间分辨率为30米。数据可在震前准备（除地震强度外），震后结合仪器获取的强度信息快速合成，以评估地质灾害风险，具有高分辨率和综合性特点，适用于遥感应用和测绘科学技术领域。