{"id":1715,"date":"2015-01-11T16:56:36","date_gmt":"2015-01-11T21:56:36","guid":{"rendered":"http:\/\/site.extension.uga.edu\/climate\/?p=1715"},"modified":"2015-01-11T16:57:13","modified_gmt":"2015-01-11T21:57:13","slug":"fantastic-atmospheric-optics-display","status":"publish","type":"post","link":"https:\/\/site.extension.uga.edu\/climate\/2015\/01\/fantastic-atmospheric-optics-display\/","title":{"rendered":"Fantastic atmospheric optics display"},"content":{"rendered":"<p>Several of my meteorologists friends posted this image on Facebook yesterday from NWS Amarillo (picture by Joshua Thomas on 1-9-2015 in New Mexico):<\/p>\n<p><a href=\"https:\/\/site.extension.uga.edu\/climate\/files\/2015\/01\/ice-optics-nws-amarillo-joshua-thomas-1-9-2015.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1716\" src=\"https:\/\/site.extension.uga.edu\/climate\/files\/2015\/01\/ice-optics-nws-amarillo-joshua-thomas-1-9-2015-300x118.jpg\" alt=\"ice optics nws amarillo joshua thomas 1-9-2015\" width=\"300\" height=\"118\" srcset=\"https:\/\/site.extension.uga.edu\/climate\/files\/2015\/01\/ice-optics-nws-amarillo-joshua-thomas-1-9-2015-300x118.jpg 300w, https:\/\/site.extension.uga.edu\/climate\/files\/2015\/01\/ice-optics-nws-amarillo-joshua-thomas-1-9-2015.jpg 1024w, https:\/\/site.extension.uga.edu\/climate\/files\/2015\/01\/ice-optics-nws-amarillo-joshua-thomas-1-9-2015-350x138.jpg 350w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>This is one of the best pictures of atmospheric optics I have seen, particularly for an area outside of Antarctica. \u00a0Atmospheric optics is the study of how light moves through water drops or ice crystals. \u00a0Of course the most common optical effect is a rainbow, which is caused by light entering a raindrop, bouncing off the back surface and dispersing into different colors as it moves through the drop. \u00a0But there are even more effects caused by light moving through ice crystals, since the crystals have a lot more variety in shape and size than raindrops. \u00a0This image shows many of the ice crystal phenomena, which are identified in the figure below from NWS La Crosse. \u00a0Of the effects seen in the picture, the ones you are most likely to have seen are the sun dogs or &#8220;parhelia&#8221; and the 22 degree halo. \u00a0Some of these phenomena have been used as folk weather predictions, such as &#8220;a ring around the moon means rain within 48 hours&#8221;. \u00a0That&#8217;s because their causes are related to where moisture is in the atmosphere and typical patterns of clouds and weather associated with fronts and storms.<\/p>\n<p><a href=\"https:\/\/site.extension.uga.edu\/climate\/files\/2015\/01\/ice-optics-explanation.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1717\" src=\"https:\/\/site.extension.uga.edu\/climate\/files\/2015\/01\/ice-optics-explanation-300x222.png\" alt=\"ice optics explanation\" width=\"300\" height=\"222\" srcset=\"https:\/\/site.extension.uga.edu\/climate\/files\/2015\/01\/ice-optics-explanation-300x222.png 300w, https:\/\/site.extension.uga.edu\/climate\/files\/2015\/01\/ice-optics-explanation-187x138.png 187w, https:\/\/site.extension.uga.edu\/climate\/files\/2015\/01\/ice-optics-explanation.png 474w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>If you are interested in learning more about some of these phenomena, Wikipedia has a good <a title=\"Wikipedia atmospheric optics\" href=\"https:\/\/en.wikipedia.org\/wiki\/Atmospheric_optics\" target=\"_blank\">article<\/a> about the most common types of optical displays. \u00a0Another web site with some excellent pictures and brief descriptions is at\u00a0<a title=\"Atmo optics\" href=\"https:\/\/atoptics.co.uk\/\" target=\"_blank\">https:\/\/atoptics.co.uk\/<\/a>. \u00a0Who knows what you will see in the sky if you keep looking?<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Several of my meteorologists friends posted this image on Facebook yesterday from NWS Amarillo (picture by Joshua Thomas on 1-9-2015 in New Mexico): &nbsp; This is one of the best pictures of atmospheric optics I have seen, particularly for an area outside of Antarctica. \u00a0Atmospheric optics is the study of how light moves through water [&hellip;]<\/p>\n","protected":false},"author":58,"featured_media":1716,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,7],"tags":[],"class_list":["post-1715","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-climate-and-ag-in-the-news","category-interesting-weather-images"],"_links":{"self":[{"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/posts\/1715","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=1715"}],"version-history":[{"count":2,"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/posts\/1715\/revisions"}],"predecessor-version":[{"id":1719,"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/posts\/1715\/revisions\/1719"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/media\/1716"}],"wp:attachment":[{"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/media?parent=1715"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/categories?post=1715"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/climate\/wp-json\/wp\/v2\/tags?post=1715"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}