台南高雄淹水停班停課文亂象 - 台南
By Frederic
at 2019-08-14T14:32
at 2019-08-14T14:32
Table of Contents
選舉要到了 各方都在辦法裂解原先族群
網軍喜歡以點打面 圍點打援
但真正有建設性的方向卻被模糊
對台南高雄有幫助嗎?
大家應該要比
1. 淹水 政府短期長期計劃了什麼 有沒有對策 有執行效率
2. 放假到底合不合理
結果都被網軍特意抹成
1. 一個區域淹水=台南/高雄都淹水 (以點打面)
2. 哪裡沒放假=所以有人死了 哪裡放假=政府不用作事只會放假
實際上除台北可以號稱全區域達成 350 mm排水/24小時 其他縣市都一定有特定容易淹水?
但如果單日下超過350mm 淡水河流域也是會淹
不是台北人高貴
政府要處理 也是要有先後順序
優先高人口高經濟價值區域
1. 從國土防災網站可以查目前淹水模擬圖資
https://reurl.cc/Oxpm3
2. 用數據看台灣可以查到台灣各地雨量資訊
https://www.taiwanstat.com/realtime/
3. 中央氣象局也有每日繪出全區域雨量圖
http://i.imgur.com/9teLB7D.jpg
以仁德為例 昨日 大約前12小時降雨 320 mm
從24小時 降雨650 mm水流量
國土防災圖資早就預測到
http://i.imgur.com/5HR5p0O.jpg
仁德警察局(區公所旁)會有2~3公尺的淹水高度
12hr 320mm 會大約1~2公尺尺度
歷史也告訴每個建商跟發照單位那邊就是水文地
目前的排水就是設計到什麼程度也知道
短時間它能力就在那邊
但人還是決定在那居住就要承擔風險
以仁德為例
會不會淹水就是看2級淹水標準
250mm/24小時
相當於125mm/12小時
不超過則仁德多數區域不會累積水位
我們要檢討的是
1. 哪些地方沒有達成應有目標與原因(短期)
對策是什麼?
像清淤就是一個檢討未達應有能力的短期對策
2. 超過現階段防洪標準的區域 市政府怎麼擬定長期改善計劃(長期)
像抽水馬達 瀉洪池就是長期改善排水計劃
綠粉/韓粉想戰誰改善淹水比較多很簡單
KPI就看
提升台南/高雄防洪350 /24小時 和650mm /24小時的區域
在韓/黃跟前任的賴菊 多少預算 改善了多少土地面積
否則都是在打嘴砲
2. 停班停課有沒有合理
預計 下超過350 mm/24小時 (多數區域防洪能力) 就該停課
昨天高雄多數區域都<200 mm
客觀來看不該停課
台南未達350 mm/24小時合不合理其實要討論
但前6小時發佈前 有區域下超過200
前12小時 台南市區附近也普遍達到 250以上
時雨量超標也一樣會淹水
所以黃決定停班停課也不能說有錯
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Sent from JPTT on my Samsung SM-A7050.
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Tags:
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