Observational study and summertime ice at the Nakayama Wind-Hole in Shimogo, Fukushima
Nakayama Wind-Hole is an important Natural Monument to be preserved for a rare alpine plant in low altitude which survive under the cold air blowing form the wind hole. For this reason, the AA. have conducted here in situ observation for more than
a year from February 1998 through July 1999. This paper documents the comprehensive observational result for the summertime ice at the Nakayama Wind-Hole. It supports the theory of dynamic thermal filter where only coldness tends to accumulate
Based on studies conducted in different kinds of karst areas all around in the carpathian Basin, authors describe and evaluate the development and evolution of sink holes. Using distribution of functions and analysing parameter spaces, the sinks
holes of covered and uncovered karst surfaces are compared. - (ZK)