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2009/06/12 16:13:00瀏覽700|回應0|推薦5 | |
※※ 找尋鋒面之要領※※ 「Rules for Finding Fronts」 1. 尋找強烈溫度梯度(差)之所在,鋒面將會在強烈溫度梯度之較暖(南方)之區域。 Look for a strong temperature gradient (difference). The front will be at the warm side of the sharpest gradient. 2. 同樣的,找尋強烈露點溫度梯度之處,鋒面將會在強烈露點溫度梯度之較暖(南方)之區域。 Likewise, look for a strong dew point gradient. The front will be on the warm side of the gradient. 3. 鋒面會在氣壓槽所在之處。 The front will be found in a pressure trough. 4. 察看3小時氣壓變化(氣壓趨勢),瞭解氣壓趨勢,鋒面經過時氣壓會先下降而後再上升,3小時氣壓趨勢可以給我們很好氣壓變化的蹤跡。 Look at the three-hour pressure changes, known a tendencies. With the passage of the front the pressure will decrease then increase, giving a trace, which looks like a check mark, or check tendency. 5. 尋找明顯風向之變化,風向有逆鐘向(氣旋式)之風切通常顯示有鋒面經過。 Look for a sharp change in the wind direction. A cyclonic shear in the wind usually indicates frontal passage. 6. 檢查天氣現象和雲之型態,通常他們會伴隨著不同型態之鋒面。 Check weather and cloud patterns that are usually associated with different kinds of fronts.
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( 知識學習|隨堂筆記 ) |