Global Landslide Mortality Risks and Distribution

The Global Landslide Mortality Risks and Distribution is a 2.5 minute grid of global landslide mortality risks. Gridded Population of the World, Version 3 (GPWv3) data provide a baseline estimation of population per grid cell from which to estimate potential mortality risks due to landslide hazard. Mortality loss estimates per hazard event are caculated using regional, hazard-specific mortality records of the Emergency Events Database (EM-DAT) that span the 20 years between 1981 and 2000. Data regarding the frequency and distribution of landslide hazard are obtained from the Global Landslide Hazard Distribution data set. In order to more accurately reflect the confidence associated with the data and procedures, the potential mortality estimate range is classified into deciles, 10 classes of increasing risk with an approximately equal number of grid cells per class, producing a relative estimate of landslide-based mortality risks. This data set is the result of collaboration among the Columbia University Center for Hazards and Risk Research (CHRR), International Bank for Reconstruction and Development/The World Bank, and Columbia University Center for International Earth Science Information Network (CIESIN).

全球滑坡死亡率风险及其分布数据集系全球滑坡死亡率风险的2.5分钟网格数据。世界人口网格化数据集，版本3（GPWv3）提供了每个网格单元的人口基数估计，据此可估算由于滑坡灾害而导致的潜在死亡率风险。每个灾害事件造成的死亡率损失估算采用1981年至2000年间的区域特定灾害死亡率记录，这些记录来源于紧急事件数据库（EM-DAT）。关于滑坡灾害的频率和分布数据则来自全球滑坡灾害分布数据集。为更精确地反映数据与程序相关的置信度，潜在死亡率估算范围被划分为十等分，即10个风险逐渐增加的类别，每个类别中网格单元数量大致相等，从而产生基于滑坡的死亡率风险的相对估算。该数据集是哥伦比亚大学灾害与风险研究（CHRR）、国际重建与发展银行/世界银行以及哥伦比亚大学国际地球科学信息网络中心（CIESIN）合作的结果。