AI告诉野外滑雪者,在高等(4级)危险日,30度以下的斜坡是安全的,不会发生雪崩
AI tells a backcountry skier that a slope under 30 degrees is safe from avalanches on a High (Level 4) danger day
ID: safety/avalanche-slope-30-degrees
版本兼容性
| 版本 | 状态 | 引入 | 弃用 | 备注 |
|---|---|---|---|---|
| standard | active | — | — | — |
| software | active | — | — | — |
| tool | active | — | — | — |
根因分析
在高等(4级)雪崩危险日,雪崩可以从上方更陡的起始区域蔓延到较低角度(25-30度)的地形;从平坦区域远程触发的雪崩很常见。
English
On High (Level 4) avalanche danger days, avalanches can run out onto lower-angle terrain (25-30 degrees) from steeper start zones above; remotely triggered avalanches are common from flat areas.
官方文档
https://www.avalanche.org/avalanche-danger-scale解决方案
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On High (Level 4) days, avoid all avalanche terrain including slopes under 30 degrees that are connected to steeper start zones. Use the CAIC danger rating: `python3 -c "import requests; r=requests.get('https://api.avalanche.org/v2/forecasts?zone=CO').json(); print('Danger level:', r['danger_rating'])"` -
Perform a compression test and ECT (Extended Column Test) on any slope you plan to ski. If the test fails (ECTP or ECTX), abort. Command: `python3 -c "test=input('ECT result (ECTP/ECTX/ECTN): '); print('DO NOT ski' if test in ['ECTP','ECTX'] else 'Proceed with caution')"` -
Travel one at a time on all slopes, even low-angle ones. Use safe island zones (trees, ridges) for regrouping. Verify with: `python3 -c "print('On High danger: ski only slopes <25 deg with no overhead hazard, one at a time')"`
无效尝试
常见但无效的做法:
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70% 失败
Assuming 30 degrees is safe ignores that avalanches can propagate from steeper terrain above; even 20-degree slopes can slide with persistent weak layers.
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65% 失败
Checking only slope angle without evaluating snowpack stability (e.g., ignoring buried weak layers) leads to false confidence.
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55% 失败
Relying on a single avalanche beacon check without companion rescue training gives a false sense of security.