観察データ
観察データの使い方
Tanigawa-Dake
2020/01/07
日付と場所
| 投稿者 | Contributor |
| 観察日付 | 2020/01/07 |
| 投稿日時 | 2020/01/07 20:33 |
| エリア | 谷川・かぐら |
| 山岳 | Tanigawa-Dake |
| 場所 | East side of upper ridge. Alpine. |
| 同行者 | Tristen Rasmussen (tristen@bcskiguides.com) |
| Avalanche infomation |
観察データ
| 標高 | 700m〜1920m |
| 気温 | 〜 |
| 天気 | X 不明(Broken in AM. Becoming obscured in afternoon) |
| 風 |
風速：L 1-7m/s
風向：NW 風コメント：No snow transport with light winds |
| 降水 |
降水の種類：S 雪
降水の強度：S2 降水コメント：S2 at end of day |
| 雪崩などの観察 | No new avalanche observed. Loose dry with skier traffic in steep terrain to size 1.0. No cracking or whumphing. |
| 雪崩発生有無 | No |
| 積雪構造 | Strong wind effect in Alpine locations between 1900m and 1600m, snow surface is wind pressed. Test profile at 1700m on E aspect on Tanigawa-Dake ridge: 285cm HS at 1700m. 105cm HST. 1cm MFCR down 105cm. Upper 20cm is a P slab over a 4F layer. Moderate Sudden Planar test results with in HST (CTM down 20cm on density change, CTM down 75cm on density change). No results on MFCR down 105cm. |
| Spin no |
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| 観察に関わるコメント |
総括
Skied from Summit of Tanigawa-Dake (1950m) down to base of Tenjin Gondola (700m). Widespread wind effect in Alpine. Decent skiing in open areas. Very poor travel conditions below treeline with trees (alder) and open creeks.