{"id":6439,"date":"2016-03-18T11:47:17","date_gmt":"2016-03-18T15:47:17","guid":{"rendered":"http:\/\/site.extension.uga.edu\/climate\/?p=6439"},"modified":"2016-03-18T11:47:17","modified_gmt":"2016-03-18T15:47:17","slug":"drought-atlases","status":"publish","type":"post","link":"https:\/\/site.extension.uga.edu\/climate\/2016\/03\/drought-atlases\/","title":{"rendered":"Drought atlases"},"content":{"rendered":"

Do you ever get asked about where to get information on 50-year droughts? \u00a0I got one this week from a fire chief who was looking to certify dry hydrants and needed to know what a 50-year drought looks like. \u00a0While specific impacts of any drought on a pond or lake vary depending on drainage into the lake, surface area for evaporation, and soil type, you can get an idea of the reduction in precipitation due to a severe drought using a couple of drought atlas sources.<\/p>\n

The National Drought Center has a Drought Risk Atlas at\u00a0https:\/\/droughtatlas.unl.edu\/<\/a>. \u00a0The US Army Corps of Engineers has a National Drought Atlas\u00a0https:\/\/library.water-resources.us\/docs\/atlas\/Atlasintro.cfm<\/a>. \u00a0Both of them can help to quantify how much precipitation is reduced in a 2% exceedance drought (which corresponds to a 50-year drought). \u00a0For a location in southern Georgia, the estimated 12-month precipitation in a 50-year drought was 0.65 times the annual average precipitation, or a reduction of 35%.<\/p>\n

If you have other sources that you use to answer this question, please mail them to me–I am always looking for better data sources!<\/p>\n

\"Source:<\/a>
Source: https:\/\/www.ars.usda.gov\/is\/graphics\/photos\/apr13\/d186-2.htm<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"

Do you ever get asked about where to get information on 50-year droughts? \u00a0I got one this week from a fire chief who was looking to certify dry hydrants and needed to know what a 50-year drought looks like. \u00a0While specific impacts of any drought on a pond or lake vary depending on drainage into […]<\/p>\n","protected":false},"author":58,"featured_media":1101,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15,6],"tags":[],"class_list":["post-6439","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-drought","category-sources-of-weather-and-climate-data"],"_links":{"self":[{"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/posts\/6439","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/users\/58"}],"replies":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/comments?post=6439"}],"version-history":[{"count":1,"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/posts\/6439\/revisions"}],"predecessor-version":[{"id":6440,"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/posts\/6439\/revisions\/6440"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/media\/1101"}],"wp:attachment":[{"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/media?parent=6439"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/categories?post=6439"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/tags?post=6439"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}