Density-driven dissolution of carbon dioxide in water is a well-known and much described mechanism geological sequestration this greenhouse gas. It remarkable that such enhanced does not receive attention karst hydrology speleology. Models hypotheses on development are complex consider many different processes. We focus here the influence CO2 partial gas pressures at interface between atmospher...

Abstract. Monitoring the water movements in karstic areas is a fundamental but challenging task due to complexity of drainage system and difficulty deploying network observations. Gravimetry offers valid complement classical hydrologic measurements order characterize such systems which recharge process causes temporarily accumulation large volumes voids epi-phreatic system. We show an innovativ...

In this work the possibility of identifying two important aspects in process adopting soil parameters for calculating stability analysis models tailing dams is discussed. The use commercial computer programs calculations allows obtaining numerically exact results. Its representativeness, however, will be linked to correct definition phreatic regime and prediction volumetric behavior during shea...

Abstract On January 23, 2018, a small phreatic eruption (VEI = 1) occurred at the Motoshirane Pyroclastic Cone Group in southern part of Kusatsu-Shirane Volcano central Japan. The ejected ash, lapillus, and volcanic blocks from three newly opened craters: main crater (MC), west (WC), south (SC). Volcanic were deposited up to 0.5 km each crater. In contrast, ash released during this fell 25 ENE ...

Abstract Since the beginning of twenty-first century, volcanic unrest has occurred every 2–5 years at Hakone volcano. After 2015 eruption, activity changed significantly in terms seismicity and geochemistry. Like pre- co-eruptive unrest, each post-eruptive episode was detected by deep inflation below volcano (~ 10 km) low frequency events, which can be interpreted as reflecting supply magma or ...