http://www.atlantawatershortage.com/20071022/what-would-one-inch-of-rain-do-for-lake-lanier/ Keeping you informed about the Georgia drought. Thu, 20 Nov 2008 18:51:25 +0000 http://wordpress.org/?v=2.6.3 http://www.atlantawatershortage.com/20071022/what-would-one-inch-of-rain-do-for-lake-lanier/#comment-2883 Sermon for Sunday, Feb 24, 2008: Water from the Rock « Confessions of A Small-Church Pastor Sat, 23 Feb 2008 21:20:33 +0000 http://www.atlantawatershortage.com/20071022/what-would-one-inch-of-rain-do-for-lake-lanier/#comment-2883 [...] Lake Lanier, which serves Atlanta and north Georgia. Listen to these statistics from the website,Atlanta Water Shortage: The watershed for Lake Lanier is around 1,040 square miles (the “watershed” is the land area [...] [...] Lake Lanier, which serves Atlanta and north Georgia. Listen to these statistics from the website,Atlanta Water Shortage: The watershed for Lake Lanier is around 1,040 square miles (the “watershed” is the land area [...]

]]> http://www.atlantawatershortage.com/20071022/what-would-one-inch-of-rain-do-for-lake-lanier/#comment-2882 Water From The Rock « Chuck Warnock: Sermons, etc Sat, 23 Feb 2008 21:11:43 +0000 http://www.atlantawatershortage.com/20071022/what-would-one-inch-of-rain-do-for-lake-lanier/#comment-2882 [...] Lake Lanier, which serves Atlanta and north Georgia. Listen to these statistics from the website,Atlanta Water Shortage: The watershed for Lake Lanier is around 1,040 square miles (the “watershed” is the land area [...] [...] Lake Lanier, which serves Atlanta and north Georgia. Listen to these statistics from the website,Atlanta Water Shortage: The watershed for Lake Lanier is around 1,040 square miles (the “watershed” is the land area [...]

]]> http://www.atlantawatershortage.com/20071022/what-would-one-inch-of-rain-do-for-lake-lanier/#comment-27 Jerry Bailey Fri, 26 Oct 2007 19:53:08 +0000 http://www.atlantawatershortage.com/20071022/what-would-one-inch-of-rain-do-for-lake-lanier/#comment-27 I have to take issue with your statement that: "One inch of rain will dump a total of 27,878,400 gallons per square mile." The 27.9 million number is actually the number of square feet in a square mile. (5,280 squared). The number of cubic feet of water for one inch of rainfall over a square mile would be 27,878,400/12 or 2,323,200. Converting to gallons at 7.48 gal/cubic ft would result in 17,377,536 gal of water per square mile. I have to take issue with your statement that: “One inch of rain will dump a total of 27,878,400 gallons per square mile.” The 27.9 million number is actually the number of square feet in a square mile. (5,280 squared). The number of cubic feet of water for one inch of rainfall over a square mile would be 27,878,400/12 or 2,323,200. Converting to gallons at 7.48 gal/cubic ft would result in 17,377,536 gal of water per square mile.

]]> http://www.atlantawatershortage.com/20071022/what-would-one-inch-of-rain-do-for-lake-lanier/#comment-17 Atlanta Water Shortage » Georgia Drought » Blog Archive » More rain forecast, but so far it hasn’t helped Tue, 23 Oct 2007 11:31:05 +0000 http://www.atlantawatershortage.com/20071022/what-would-one-inch-of-rain-do-for-lake-lanier/#comment-17 [...] The weather forecast is looking much better over the next few days.  Accuweather is predicting 1.64 inches over the the next five days, which would certainly help. [...] [...] The weather forecast is looking much better over the next few days.  Accuweather is predicting 1.64 inches over the the next five days, which would certainly help. [...]

]]> http://www.atlantawatershortage.com/20071022/what-would-one-inch-of-rain-do-for-lake-lanier/#comment-12 mickey Mon, 22 Oct 2007 13:22:27 +0000 http://www.atlantawatershortage.com/20071022/what-would-one-inch-of-rain-do-for-lake-lanier/#comment-12 Angie -- thanks for that info. What would be a reasonable number to estimate for Lanier? It's a rather developed area. 20%? Angie — thanks for that info. What would be a reasonable number to estimate for Lanier? It’s a rather developed area. 20%?

]]> http://www.atlantawatershortage.com/20071022/what-would-one-inch-of-rain-do-for-lake-lanier/#comment-11 Angie Hong Mon, 22 Oct 2007 13:19:36 +0000 http://www.atlantawatershortage.com/20071022/what-would-one-inch-of-rain-do-for-lake-lanier/#comment-11 Unfortunately, I'm afraid that far less than 75% of a 1 inch rainfall would make it to Lake Lanier. In a natural, undeveloped watershed, the majority of rainfall is either evapotranspirated by trees and plants or soaked into the ground. Depending on the type of soils in the area, the amount of rainwater that would actually runoff into the lake would be around 4%. In a developed watershed, with impervious surfaces such as roads and houses (such as a city), the amount of runoff could increase to 30-50%. I am not familiar with the unique hydrology of Lake Lanier, but I would guess that some groundwater may also feed the lake. It could be weeks, months or even years, however, before this water reaches the lake after a 1 inch rainfall. Unfortunately, I’m afraid that far less than 75% of a 1 inch rainfall would make it to Lake Lanier. In a natural, undeveloped watershed, the majority of rainfall is either evapotranspirated by trees and plants or soaked into the ground. Depending on the type of soils in the area, the amount of rainwater that would actually runoff into the lake would be around 4%. In a developed watershed, with impervious surfaces such as roads and houses (such as a city), the amount of runoff could increase to 30-50%. I am not familiar with the unique hydrology of Lake Lanier, but I would guess that some groundwater may also feed the lake. It could be weeks, months or even years, however, before this water reaches the lake after a 1 inch rainfall.

]]> http://www.atlantawatershortage.com/20071022/what-would-one-inch-of-rain-do-for-lake-lanier/#comment-10 Atlanta Water Shortage » Georgia Drought » Blog Archive » More rain coming - but how much? Mon, 22 Oct 2007 01:41:08 +0000 http://www.atlantawatershortage.com/20071022/what-would-one-inch-of-rain-do-for-lake-lanier/#comment-10 [...] Atlanta Water Shortage Keeping you informated about the Georgia drought. « What would one inch of rain do for Lake Lanier? [...] [...] Atlanta Water Shortage Keeping you informated about the Georgia drought. « What would one inch of rain do for Lake Lanier? [...]

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