{"id":7778,"date":"2016-07-29T12:40:39","date_gmt":"2016-07-29T16:40:39","guid":{"rendered":"http:\/\/site.extension.uga.edu\/climate\/?p=7778"},"modified":"2016-07-29T12:40:39","modified_gmt":"2016-07-29T16:40:39","slug":"evapotranspiration-and-evaporation-data-for-georgia","status":"publish","type":"post","link":"https:\/\/site.extension.uga.edu\/climate\/2016\/07\/evapotranspiration-and-evaporation-data-for-georgia\/","title":{"rendered":"Evapotranspiration and evaporation data for Georgia"},"content":{"rendered":"<p>I got a request from one of the Georgia extension agents for some average evapotranspiration data. \u00a0You might be asked about this too, so I thought I would post the information here.<\/p>\n<p>I found these curves for some Georgia locations from a paper published by Suleiman and Hoogenboom in the <em>Journal of Irrigation and Drainage Engineering<\/em>. \u00a0I can get to it via\u00a0<a href=\"https:\/\/www.researchgate.net\/publication\/245289139_Comparison_of_Priestley-Taylor_and_FAO56_Penman-Monteith_for_Daily_Reference_Evapotranspiration_Estimation_in_Georgia\">https:\/\/www.researchgate.net\/publication\/245289139_Comparison_of_Priestley-Taylor_and_FAO56_Penman-Monteith_for_Daily_Reference_Evapotranspiration_Estimation_in_Georgia<\/a>.<\/p>\n<p><a href=\"https:\/\/site.extension.uga.edu\/climate\/files\/2016\/07\/evapotranspiration-curves.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-7779\" src=\"https:\/\/site.extension.uga.edu\/climate\/files\/2016\/07\/evapotranspiration-curves-300x229.jpg\" alt=\"evapotranspiration curves\" width=\"300\" height=\"229\" srcset=\"https:\/\/site.extension.uga.edu\/climate\/files\/2016\/07\/evapotranspiration-curves-300x229.jpg 300w, https:\/\/site.extension.uga.edu\/climate\/files\/2016\/07\/evapotranspiration-curves-768x586.jpg 768w, https:\/\/site.extension.uga.edu\/climate\/files\/2016\/07\/evapotranspiration-curves-181x138.jpg 181w, https:\/\/site.extension.uga.edu\/climate\/files\/2016\/07\/evapotranspiration-curves.jpg 900w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>For completeness, here is also data on evaporation in Georgia (sorry if the formatting is off):<\/p>\n<p><strong>Pan evaporation data for Georgia stations (in inches)<\/strong><\/p>\n<p><em>Source:<\/em> NOAA Technical Report NWS 34, Mean Monthly, Seasonal, and Annual Pan Evaporation for the United States, Richard K. Farnsworth and Edwin S. Thompson, December 1982<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Estimated monthly values for NWS sites<\/strong><\/p>\n<p>Station\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 J \u00a0 \u00a0 \u00a0 F\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 M\u00a0\u00a0\u00a0\u00a0\u00a0 A\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 M\u00a0\u00a0\u00a0\u00a0\u00a0 J\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 J\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 A\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 S\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 O\u00a0\u00a0\u00a0\u00a0\u00a0 N\u00a0\u00a0\u00a0\u00a0\u00a0 D\u00a0\u00a0\u00a0\u00a0\u00a0 Annual<\/p>\n<p>&nbsp;<\/p>\n<p>Athens\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2.20\u00a0 2.66\u00a0 4.16\u00a0 5.51\u00a0 6.43\u00a0 6.64\u00a0 6.54\u00a0 6.36\u00a0 5.06\u00a0 4.20\u00a0 2.99\u00a0 1.17\u00a0 55.01<\/p>\n<p>Atlanta\u00a0\u00a0\u00a0\u00a0\u00a0 2.12\u00a0 2.73\u00a0 4.28\u00a0 5.78\u00a0 7.03\u00a0 7.10\u00a0 7.07\u00a0 6.70\u00a0 5.22\u00a0 4.14\u00a0 2.89\u00a0 2.26\u00a0 57.13<\/p>\n<p>Augusta\u00a0\u00a0\u00a0\u00a0 2.18\u00a0 2.75\u00a0 4.25\u00a0 5.66\u00a0 6.27\u00a0 6.62\u00a0 6.49\u00a0 6.31\u00a0 5.07\u00a0 4.19\u00a0 3.00\u00a0 2.29\u00a0 55.09<\/p>\n<p>Columbus\u00a0 2.05\u00a0 2.66\u00a0 4.16\u00a0 5.51\u00a0 6.76\u00a0 6.76\u00a0 6.10\u00a0 6.16\u00a0 5.32\u00a0 4.35\u00a0 2.77\u00a0 2.10\u00a0 54.91<\/p>\n<p>Macon\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2.25\u00a0 2.92\u00a0 4.64\u00a0 6.47\u00a0 7.85\u00a0 7.67\u00a0 7.55\u00a0 7.14\u00a0 5.83\u00a0 4.36\u00a0 3.03\u00a0 2.45\u00a0 62.16<\/p>\n<p>Savannah\u00a0\u00a0 2.30\u00a0 2.87\u00a0 4.76\u00a0 6.70\u00a0 7.62\u00a0 7.51\u00a0 7.79\u00a0 6.83\u00a0 5.67\u00a0 4.45\u00a0 3.06\u00a0 2.60\u00a0 61.82<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Measured monthly values from pan evaporation stations<\/strong><\/p>\n<p>Station\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 J\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 F\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 M\u00a0\u00a0\u00a0\u00a0\u00a0 A\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 M\u00a0\u00a0\u00a0\u00a0\u00a0 J\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 J\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 A\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 S\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 O\u00a0\u00a0\u00a0\u00a0\u00a0 N\u00a0\u00a0\u00a0\u00a0\u00a0 D\u00a0\u00a0\u00a0\u00a0\u00a0 Annual<\/p>\n<p>&nbsp;<\/p>\n<p>Ailey\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2.09\u00a0 3.06\u00a0 4.53\u00a0 5.46\u00a0 6.61\u00a0 6.61\u00a0 6.64\u00a0 6.21\u00a0 4.61\u00a0 3.74\u00a0 2.64\u00a0 2.07\u00a0 54.27<\/p>\n<p>Allatoona Dam<\/p>\n<p>&#8211;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3.87\u00a0 5.06\u00a0 5.77\u00a0 6.27\u00a0 6.55\u00a0 5.97\u00a0 4.71\u00a0 3.46\u00a0 2.32\u00a0 &#8211;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 &#8211;<\/p>\n<p>Athens College of Agriculture<\/p>\n<p>2.76\u00a0 3.20\u00a0 4.82\u00a0 6.12\u00a0 7.13\u00a0 7.49\u00a0 7.63\u00a0 6.83\u00a0 5.65\u00a0 4.21\u00a0 3.03\u00a0 2.53\u00a0 61.40<\/p>\n<p>Calhoun Experimental Station<\/p>\n<p>&#8211;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 &#8211;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4.63\u00a0 5.75\u00a0 6.04\u00a0 7.24\u00a0 7.25\u00a0 6.54\u00a0 5.23\u00a0 4.22\u00a0 3.00\u00a0 3.00\u00a0 &#8211;<\/p>\n<p>Experiment<\/p>\n<p>2.57\u00a0 3.10\u00a0 4.78\u00a0 6.26\u00a0 7.53\u00a0 7.96\u00a0 7.58\u00a0 6.95\u00a0 5.61\u00a0 4.32\u00a0 3.04\u00a0 2.36\u00a0 62.06<\/p>\n<p>Rome\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1.77\u00a0 2.76\u00a0 3.85\u00a0 5.29\u00a0 6.37\u00a0 6.69\u00a0 6.85\u00a0 6.02\u00a0 5.05\u00a0 3.76\u00a0 2.32\u00a0 1.54\u00a0 52.27<\/p>\n<p>Savannah\u00a0\u00a0 3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3.67\u00a0 5.69\u00a0 7.42\u00a0 7.76\u00a0 7.91\u00a0 8.29\u00a0 7.21\u00a0 5.75\u00a0 5.12\u00a0 3.42\u00a0 3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 68<\/p>\n<p>Tifton Experimental Station<\/p>\n<p>2.22\u00a0 2.78\u00a0 4.53\u00a0 6.00\u00a0 7.08\u00a0 6.97\u00a0 6.81\u00a0 6.32\u00a0 5.13\u00a0 4.24\u00a0 2.80\u00a0 2.17\u00a0 57.05<\/p>\n<p>Note that months with values of only one digit do not have enough historical data to give a more precise amount.\u00a0 Missing data are shown with a\u00a0 \u2018-\u2018.<\/p>\n<p>For the May-October period, the evaporation from a Free Water Surface can be estimated by multiplying the pan evaporation by 0.75.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I got a request from one of the Georgia extension agents for some average evapotranspiration data. \u00a0You might be asked about this too, so I thought I would post the information here. I found these curves for some Georgia locations from a paper published by Suleiman and Hoogenboom in the Journal of Irrigation and Drainage [&hellip;]<\/p>\n","protected":false},"author":58,"featured_media":7779,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,6],"tags":[],"class_list":["post-7778","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-extension-agent-outreach","category-sources-of-weather-and-climate-data"],"_links":{"self":[{"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/posts\/7778","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=7778"}],"version-history":[{"count":1,"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/posts\/7778\/revisions"}],"predecessor-version":[{"id":7780,"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/posts\/7778\/revisions\/7780"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/media\/7779"}],"wp:attachment":[{"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/media?parent=7778"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/categories?post=7778"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/tags?post=7778"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}