北京2023年7月极端降水触发的浅层滑坡灾害目录

本数据集记录了2023年7月29日至8月2日受超强台风“杜苏芮”残余环流影响，中国北京遭遇历史性极端降水事件后，在其西部山区（约3250平方公里范围内）触发的15,383个浅层降雨型滑坡的详细信息。该目录是迄今为止对该事件最系统的滑坡编录，为量化极端气象事件的地质灾害影响提供了基础数据。所有滑坡均通过对比事件前后的高分辨率卫星影像（0.8-2米），经人工视觉解译识别，并以矢量化点（代表滑坡起始位置）和面（代表整个影响区域）要素的形式记录。每个滑坡还根据其运动形式进行了分类。数据集平均密度约为4.7个/平方公里，最高密度达120个/平方公里，总影响面积约19.3平方公里。This dataset documents detailed information on 15,383 shallow rainfall-induced landslides triggered in the western mountainous area of Beijing, China (spanning an approximate area of 3,250 km²), in the aftermath of the historic extreme precipitation event that impacted Beijing from July 29 to August 2, 2023, driven by the residual circulation of Super Typhoon Doksuri. This inventory represents the most systematic landslide catalog for this event to date, providing foundational data for quantifying the geological hazard impacts of extreme meteorological events. All landslides were identified via manual visual interpretation by comparing high-resolution satellite imagery (0.8–2 m resolution) acquired before and after the event, and recorded as vectorized point features (denoting landslide initiation locations) and polygon features (representing the full affected extent). Each landslide was further classified based on its movement pattern. The dataset has an average density of approximately 4.7 landslides per square kilometer, with a peak density of 120 landslides per square kilometer, and the total affected area totals roughly 19.3 km².

搜集汇总

背景与挑战

背景概述

该数据集记录了2023年7月29日至8月2日，由超强台风'杜苏芮'残余环流在北京西部山区触发的15383个浅层降雨型滑坡的详细目录，是迄今为止对该事件最系统的滑坡记录。数据集基于高分辨率卫星图像通过人工视觉解译生成，以矢量点和面形式表示滑坡位置和影响范围，并提供了滑坡密度（平均4.7个/平方公里，最高120个/平方公里）和总受影响面积（约19.3平方公里）等关键统计信息，为量化极端天气事件的地质灾害影响提供了基础数据。