Sinkholes are the most abundant surface features in karst areas worldwide. Understanding sinkhole occurrences and characteristics is critical for studying aquifers mitigating sinkhole-related hazards. Most sinkholes appear on land as depressions or cover collapses commonly mapped from elevation data, such digital models (DEMs). Existing methods identifying DEMs often require two steps: locating...

The dynamic nature of groundwater is not readily apparent, except where discharge is focused at springs or where recharge enters sinkholes. Yet groundwater flow and storage are continually changing in response to human and climatic stresses. Wise development of groundwater resources requires a more complete understanding of these changes in flow and storage and of their effects on the terrestri...

Hydrological simulation of the karst area is significant for assessing water resources accurately and exploring relationship in hydrologic cycle. However, existence sinkholes causes spatial heterogeneity aquifers changes distribution surface as well groundwater, which makes traditional hydrogeological model difficult to quantitatively characterize hydrological processes sinkhole. Hence, improvi...

Mapping specific landform entities in the past is mainly achieved by manually examining contour lines on topographic maps. Automated delimitation of specific landform from digital elevation data remains difficult in geomorphologic mapping. This paper presents a method to automatically identify five common surface features of karst landscapes: isolated karst hill or sinkhole, clustered karst hil...

This study presents an overview of Middle Pleistocene loess–palaeosol sequences (LPS) in northern France and discusses the palaeoclimatic significance pedosedimentary record context western European LPS global climatic cycles for last 750 ka. In this area, oldest loess deposits (early Pleistocene) are preserved sedimentary traps (leeward scarps fluvial terraces dissolution sinkholes). They resu...

InSAR (Interferometric Synthetic Aperture Radar) cloud computing and the subtraction of LiDAR (Light Detection Ranging) DEMs (Digital Elevation Models) are innovative approaches to detect subsidence in karst areas. allows for analyzing C-band Envisat Sentinel S1 SAR images through web platforms produce displacement maps Earth’s surface an easy manner. The serial results same product but with a ...

Sistema Zacatón in north-eastern Mexico is host to several deep, water-filled, anoxic, karstic sinkholes (cenotes). These cenotes were explored, mapped, and geochemically and microbiologically sampled by the autonomous underwater vehicle deep phreatic thermal explorer (DEPTHX). The community structure of the filterable fraction of the water column and extensive microbial mats that coat the ceno...

Sinkhole development occurs in many areas of the world where soluble rocks crop out. Sinkholes are generally the surface expression of the presence of caves and other groundwater flow conduits in carbonate rocks, which are solutionally enlarged secondary permeability features. Their formation may be either natural or caused by man’s activities. In both cases, heavy consequences have to be regis...

Botnets continue to pose a significant threat to Internet security, and their detection remains a focus of academic and industry research. Some of the most successful botnet measurement and remediation efforts rely heavily on sinkholing the botnet’s command and control (C&C) domains [1]. Essentially, sinkholing consists of re-writing the DNS resource records of C&C domains to point to one or mo...

Abstract Eighty-six sinkholes occurred in a karst area of 2 km from 1990 to 2016, resulting cracked houses and abandoned farmland. The affected is adjacent three underground mines with mining depth up 600 m below ground. Sinkhole characteristics, hydrogeochemical isotopic data, groundwater-gas pressure measurements were evaluated understand the dynamic system. An aquiclude layer was identified ...