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Why Mountain Winds Cool as They Rise and Warm When Descending
山风为何上升时冷却、下降时增温
精读先不看文字，完整听一遍。
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As air rises up a mountain slope, it expands due to decreasing atmospheric pressure.空气沿山坡上升时，因大气压降低而膨胀。
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This expansion causes adiabatic cooling, even without heat loss to surroundings.这种膨胀导致绝热冷却，即使未向周围散失热量。
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Moist air may condense into clouds and release latent heat partway up.湿润空气在爬升途中可能凝结成云，并释放潜热。
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Once over the peak, dry air descends and compresses under higher pressure.越过山顶后，干燥空气在更高气压下下沉并被压缩。
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Compression leads to adiabatic warming, often raising temperatures rapidly.压缩引发绝热增温，常使气温迅速升高。
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These winds—called foehn or chinook—can melt snow within hours.这类风被称为焚风或奇努克风，数小时内即可融化积雪。
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Temperature differences between windward and leeward sides drive local weather patterns.迎风坡与背风坡之间的温差驱动局地天气模式。
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The process explains why some valleys stay frost-free despite high elevation.该过程解释了为何某些高海拔山谷仍无霜冻。
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Meteorologists use this principle to predict regional temperature anomalies.气象学家利用这一原理预测区域温度异常。
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It demonstrates how thermodynamics governs everyday atmospheric behavior across landscapes.它揭示了热力学如何主导地貌尺度上的日常大气行为。
精读 · 大约 10 分钟
听 → 读 → 学表达 → 懂 → 今天会说这一句 → 跟读录音 → 自己说一句。
③ 学 · 重点表达
- Compression leads to adiabatic warming, often raising temperatures rapidly. 压缩引发绝热增温，常使气温迅速升高。
- These winds—called foehn or chinook—can melt snow within hours. 这类风被称为焚风或奇努克风，数小时内即可融化积雪。
- Meteorologists use this principle to predict regional temperature anomalies. 气象学家利用这一原理预测区域温度异常。
④ 懂 · 选一选
⑤ 今天会说这一句
Compression leads to adiabatic warming, often raising temperatures rapidly.
⑥ 跟读并录音
Compression leads to adiabatic warming, often raising temperatures rapidly.
第一版：录下来、回听、再听标准音。系统打分以后再加。
⑦ 说 · 自己来一句
用今天的表达，自己说一句。
例子：Compression leads to adiabatic warming, often raising temperatures rapidly.
已记下。连续天数以后会显示在课表里。
陈老师指导
课程开发中，敬请期待。成人和孩子都可以先自学听读、精读。
这边的讲解音轨还在做。想先跟着老师走完固定 30 课，可以去陈老师带读社（和自学通行不是同一份会员）。
课程开发中，敬请期待。