一早起來起大霧 - 高雄
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By Hamiltion
at 2017-10-18T01:40
at 2017-10-18T01:40
Table of Contents
早上在這篇文章#1PvNp7oV,有稍微說明幅射霧得成因
但是我想,事後大家都可以是諸葛亮
如果說,事前就告訴大家,明天高雄空曠處,還是能見度低
應該可以降低一些不必要的猜測與懷疑
https://imgur.com/a/Nu5Bj
這是17日12Z的地面圖,高壓中心在黑龍江
勢力向南沿伸到臺灣中部
https://imgur.com/a/qftI1
這是17日12Z的斜溫圖,藍色是南部空域地面到高空的溫度線
紅色是南部空域的露點線,1000~850hPa間兩條線非常接近,
在過了850~700hPa間,藍線向右,紅線非常向左,稱為下沉逆溫
逆溫層的出現,代表空氣塊在地面的降溫率大於高空的降溫率
近地面比較涼,高空比較暖,不利空氣對流,如同有個大鍋蓋罩在高雄上空
而當晚上地面(特別是空曠區,如農田、機場、草地)輻射冷卻效應明顯
近地面相對濕度高,加上風速微弱,
那麼18日一早原PO家(第一科大)週邊應該還是一片霧茫茫
而小港機場能見度約在3200~5000公尺間
曾經有人說高雄霧霾甚至紫爆一切都是祖國的善意,就氣象的觀點是多慮了
高雄PM2.5的主要污染問題的原因,推敲2點如下:
1.是逆溫層的高度,當逆溫層越厚,污染物越不容易對流到高空,
逆溫的狀況,通常都發生在冬半季,這也是為什麼紫爆都發生在
這段時間。
2.汽機車的排放,高雄自用汽機車數量不少,而且集中在都會區
下班時段大量廢氣的排放,晚上缺少加熱源,又碰到逆溫現象
就不斷的市區內循環,自然會紫爆
--
如果你覺得資訊有幫助,
請把讚美歸於空軍,沒有空軍不會有我
如果你覺得資訊無用,
責難歸咎於我,學藝不精,抱歉
--
但是我想,事後大家都可以是諸葛亮
如果說,事前就告訴大家,明天高雄空曠處,還是能見度低
應該可以降低一些不必要的猜測與懷疑
https://imgur.com/a/Nu5Bj
這是17日12Z的地面圖,高壓中心在黑龍江
勢力向南沿伸到臺灣中部
https://imgur.com/a/qftI1
這是17日12Z的斜溫圖,藍色是南部空域地面到高空的溫度線
紅色是南部空域的露點線,1000~850hPa間兩條線非常接近,
在過了850~700hPa間,藍線向右,紅線非常向左,稱為下沉逆溫
逆溫層的出現,代表空氣塊在地面的降溫率大於高空的降溫率
近地面比較涼,高空比較暖,不利空氣對流,如同有個大鍋蓋罩在高雄上空
而當晚上地面(特別是空曠區,如農田、機場、草地)輻射冷卻效應明顯
近地面相對濕度高,加上風速微弱,
那麼18日一早原PO家(第一科大)週邊應該還是一片霧茫茫
而小港機場能見度約在3200~5000公尺間
曾經有人說高雄霧霾甚至紫爆一切都是祖國的善意,就氣象的觀點是多慮了
高雄PM2.5的主要污染問題的原因,推敲2點如下:
1.是逆溫層的高度,當逆溫層越厚,污染物越不容易對流到高空,
逆溫的狀況,通常都發生在冬半季,這也是為什麼紫爆都發生在
這段時間。
2.汽機車的排放,高雄自用汽機車數量不少,而且集中在都會區
下班時段大量廢氣的排放,晚上缺少加熱源,又碰到逆溫現象
就不斷的市區內循環,自然會紫爆
--
如果你覺得資訊有幫助,
請把讚美歸於空軍,沒有空軍不會有我
如果你覺得資訊無用,
責難歸咎於我,學藝不精,抱歉
--
Tags:
高雄
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