? 發問於 科學及數學地理學 · 1 十年前

# coriolis force 加 少少 geo 問題 (TOTAL 2題 10分 )

from 30度吹向 equator

from 30度吹60度

??

### 2 個解答

• 1 十年前
最愛解答

1. 不要忘記地球係球體, 自轉時0度比30度快, 而30度又比60度快, 而90度[南/北極]係自轉來講係停既. 所以近equator 會fing大力d而高緯度會fing細力d.

咁30度既coriolis force 係勁過60度既coriolis force. 如果係同一個天氣系統橫跨30同60度, 30度既力大, 60度既風係被迫反coriolis force 的方向吹.

2. equator 同 tropic of cancer/tropic of capricorn 都有機會被太陽直射. 春分, 秋分時直射equator, 就equator 最熱, 冬至就直射tropics of capricorn, 就係 23.5度S最熱, 夏至就直射tropics of cancer, 就係23.5度N最熱.

High / low pressure zone 係季節之間係會移動既, 所以係同一個地方, 冬/夏天會吹不同方向既風, 為之季候風.

2007-06-24 03:43:12 補充：

呀marco君, 咁點解南左北右呢, 你冇解釋到板主既問題喎.

資料來源： f.5 geography
• 1 十年前

Very simple~~~

你總之記住,係northern hemisphere ge wind 一定deflect to the right ~~southern hemisphere ge must deflect to the left~~~

So,在北半球,(對住幅圖)wind blow from high pressure area to low pressure area,由30N(high)blow to 60N(low),你就會發覺D wind 去右邊ga la~~~

####一句講曬,北半球向右,南半球向左!!!

@@@@口訣:南左(取其音:&lt;&lt;男左&gt;&gt;女右,易記D ga!!)

仲有,equator &23.5N不是熱唔熱D ge question ,而是誰日射多D ge question~~

equator have even insolation absorption throughout a year~~

While 23.5N have more intense insolation only when the overhead sun is at 23.5N(because there will have larger angle of incidence)~~so, at that time, equator is less intense ,but still have ar~~~

仲有,&lt;&lt;點解個LOW PRESSURE 會落左係EQUATOR?&gt;&gt;lee 個問題,好easy ,because both SE trade wind&NE trade wind converge here~~so,空氣上升,low pressure~~

資料來源： My Geography knowledge~~(I am a candidate of Geog. in 2007 HKCEE)