Closed depression density in karst regions of the conterminous United States: features and grid data

Most methods for the assessment of sinkhole hazard susceptibility are predicated upon knowledge of pre-existing closed depressions in karst areas. In the United...多数用于岩溶塌陷灾害易发性（sinkhole hazard susceptibility）评估的方法，均以喀斯特（karst）地区先前存在的封闭洼地的相关认知为依据。In the United...