観察データ

観察データの使い方

大毛無山

190414
日付と場所
投稿者 Observer Richard Smith
観察日付 Observation At 190414
投稿日時 Posted At 190414 16:35
エリア Range 妙高・戸隠 Myoko/Togakushi
山岳 Mountain 大毛無山
場所 Location アライスキー場
同行者 Co-worker Dave Iles
Avalanche Infomation
観察データ
標高 Elevation 330m〜1350m
気温 Temp. 7.6(0700hrs / 950m) 〜 10.7(1300hrs / 950m)
天気 Sky OVC 雲量10(Few until 1330)
風 Wind 風速 Wind Speed:L 1-7m/s
風向 Wind Direction:SW
風コメント Wind Comments:
降水 Precipitation 降水の種類 Precip. Type:R 雨
降水の強度 Precip. Rate:RV
降水コメント Precip. Comments:RV from 1430
雪崩などの観察 Avalanche Observations Multiple size 1 LW from ski cutting between 1000m and 700m. 10 - 20cm deep, running slowly and only entraining previous HN from 190411.
雪崩発生有無 Avalanche Activities_Yes or No Yes
積雪構造 Snowpack Weak overnight refreeze at high elevations, thin MFcr broke down quickly. Remaining areas of HN from 190411 (surface still white) F hardness, bellow 1000m wet and reactive. Where the HN has melted or already avalanched, the surface is brown and wet but supportive.
Spin No
コメント Comments
動画URL Movie
総括