雪崩ハザード評価の登録
Observer Richard Smith
Posted At：2023/01/20 20:31
RangeTokachi-dake Mountain三段山・Mt Sandan Location北西斜面・NW Aspect
Observation At：2023/01/20
Elevation1010m〜1750m
Co-workerAM
観察データ
気象データ
Temp. -12.2(1230hrs / 1750m) 〜 -6.8(0945hrs / 1010m)
天気
午前X 不明
午後X 不明
降水種類
午前Nil なし
午後Nil なし
降水強度
午前
午後
HST
HS Range
風速
午前L 1-7m/s
午後L 1-7m/s
風向
午前S
午後S
飛雪
気象コメント FEW from 1300. S-1 for short period in AM
雪崩データ
Avalanche Observations None
Avalanche Activities_Yes or No No
シューティングクラック No
積雪データ
重要な層と弱層とテスト結果
Snowpack BTL HST 10-30cm with ~3cm of light HN followed by a density change with the rest of the HST upside down. At TL and above the snow is wind effected. 10-20cm dense wind effected snow remains in gullies and other sheltered areas, while exposed ridges are stripped back to RGwp. The pockets of wind blown snow we found are small in scale and seemed well bonded.
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