? 發問時間: 社會與文化語言 · 1 0 年前

雨水滲透量計算

If rain falls at a rate of 25 mm per hour, on a clay loam soil with an infiltration rate of 8 mm per hour, what would be the depth of the puddle after one hour? if this puddle spread over 10 hectares, how many mega-litres would you have as runoff after two hours? show all of your working.

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請問有人知道要如何算嗎?

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  • 1 0 年前
    最佳解答

    If rain falls at a rate of 25 mm per hour, on a clay loam soil with an infiltration rate of 8 mm per hour, what would be the depth of the puddle after one hour? if this puddle spread over 10 hectares, how many mega-litres would you have as runoff after two hours? show all of your working.

    以每小時 25 公厘的降雨量落在雨水滲透量每小時 8 公厘的壤土上,一小時後積水多深? 若積水面積有 10 公頃,兩小時內的總積水量為多少百萬公升? 請列出計算過程。

    2009-08-10 23:04:18 補充:

    1. 25 - 8 = 17 公厘深

    2. 10 公頃 = 100,000 平方公尺 = 100,000,000,000 平方公厘

    1 百萬公升 = 1,000,000,000 c.c.

    兩小時的積水量為 17 * 2 * 100,000,000,000 = 3,400,000,000,000 立方公厘 (cc) = 3,400 百萬公升

    2009-08-10 23:04:39 補充:

    希望你英文看得懂, 數學也會算.

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