Characteristics of Monsoonal Precipitation around Peaks and Ridges in Shorong and Khumbu Himal
Tetsuzo Yasunari, Jiro Inoue · Journal of the Japanese Society of Snow and Ice · 1978
Through the monsoon period of 1976, precipitation phenomena were observed at temporary stations around peaks and ridges of high altitude (5000-5500 m) in Shorong and Khumbu Himal, in addition to the observations made at Lhajung station (4420 m) in the Khumbu region. Through these observations, it was found that the amounts of precipitation at these two stations is 4 or 5 times larger than that at Lhajung. While day to day convective precipitation contributes the major part of the total amount at Shorong and Glacier EB 050 (E9) stations, a few rainy days of large amount of precipitation account for most of the contribution at Lhajung station. It was also found that the statistical features of precipitation as a function of time of day are systematically different among these three stations. Along the slope to Glacier EB 050 (E9) in Khumbu Himal, the amount of precipitation gradually increases with increase of altitude. However, along the slope to Glacier AX 030 in Shorong Himal, the amount is almost uniformly distributed from 4000 m up to the terminus of the glacier (5200 m).