101105 Tateyama

投稿者	damian
日付	101105	投稿時刻	1530
山岳	Tateyama	場所	Tateyama
標高	2400ｍ〜 2800ｍ
気温	-3.1℃ 〜 -4.8℃
天気	X at 1500hrs for 1 hour
風	強度：C （0m/s）　風向：
降水・降雪	種類：Nil （降水なし）　強度：
雪崩などの観測	2010-11-04 at 2600m: Very isolated shooting cracks in 10-20cm SSL on steep convex cross loaded micro terrain features. Most cross-loading observed on N aspects of small ridges. No Na observed.
積雪構造	HS at 2350m 50-80cm. HS at 2800m 40-150cm with lee side accumulation. Isolated 10-20cm SSL, 4F hardness. Otherwise 10-30cm decomposing forms F hardness above 30-50cm loose graupel. 2600m West aspect: CTM(B) down 25cm in graupel. Thin wind scoured HS observed above 2700m.
安定性評価	アルパイン Good 森林限界森林帯
留意点・コメント	Cold soft snow, very good skiing with no significant weak layers or density differences observed except in very isolated pockets of SSL 10cm thick with shooting cracks on very small micro terrain features. Better skiing was found on on more consistent deep soft snow below 2600m