{"id":20480,"date":"2012-08-16T23:46:03","date_gmt":"2012-08-17T05:46:03","guid":{"rendered":"http:\/\/rankexploits.com\/musings\/?p=20480"},"modified":"2012-08-17T15:39:12","modified_gmt":"2012-08-17T21:39:12","slug":"uhi-in-california","status":"publish","type":"post","link":"https:\/\/rankexploits.com\/musings\/2012\/uhi-in-california\/","title":{"rendered":"UHI in California"},"content":{"rendered":"<p>I&#8217;m rather partial to California, having lived here for the last two years. I&#8217;ve also done a <a href=\"http:\/\/rankexploits.com\/musings\/2010\/uhi-in-the-u-s-a\/\">lot<\/a> <a href=\"http:\/\/rankexploits.com\/musings\/2010\/in-search-of-the-uhi-signal\/\">of<\/a> <a href=\"http:\/\/rankexploits.com\/musings\/2011\/uhi-presentation-at-the-ams-conference\/\">work<\/a> on UHI issues. So I was rather interested in <a href=\"http:\/\/wattsupwiththat.com\/2012\/08\/16\/never-before-published-paper-on-uhi-and-siting-goodridge-1987\/\">Anthony&#8217;s post<\/a> today, and figured a modernization effort (using 1 km resolution remote sensing products) was in order.<\/p>\n<p>Given 54 USHCN stations in California and the following urbanity proxies:<\/p>\n<ul>\n<li><a href=\"http:\/\/sedac.ciesin.columbia.edu\/gpw\/documentation.jsp\">GRUMP<\/a>\u00c2\u00a0(Urban or Rural binary station designations by the Global Rural Urban Mapping Project \u00e2\u20ac\u201c Columbia University)<\/li>\n<li><a href=\"http:\/\/www.ngdc.noaa.gov\/dmsp\/download_radcal.html\">Nightlights<\/a>\u00c2\u00a0(Night brightness of km^2 pixel, 30 cutoff used; NOAA)<\/li>\n<li><a href=\"http:\/\/www.ngdc.noaa.gov\/dmsp\/download_global_isa.html\">ISA<\/a>\u00c2\u00a0(Percentage of Km^2 gridded areas covered by Constructed Impervious Surfaces, pavement, buildings, concrete, etc., 10% cutoff used; NOAA)<\/li>\n<li><a href=\"http:\/\/www.ncdc.noaa.gov\/oa\/climate\/research\/population\/popdata.html\">Population Growth<\/a> (Population growth per square kilometer, 1930-2000, cutoff 10 people used; NOAA)<\/li>\n<\/ul>\n<p>We end up with these buckets:<\/p>\n<p><a href=\"http:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/Screen-Shot-2012-08-16-at-10.39.13-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20481\" src=\"http:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/Screen-Shot-2012-08-16-at-10.39.13-PM.png\" alt=\"\" width=\"469\" height=\"114\" srcset=\"https:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/Screen-Shot-2012-08-16-at-10.39.13-PM.png 469w, https:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/Screen-Shot-2012-08-16-at-10.39.13-PM-300x72.png 300w\" sizes=\"auto, (max-width: 469px) 100vw, 469px\" \/><\/a><\/p>\n<p>These trends from 1895-2012:<\/p>\n<p style=\"text-align: center\"><a href=\"http:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/trends-and-cis-1895-2012.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter  wp-image-20482\" src=\"http:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/trends-and-cis-1895-2012.png\" alt=\"\" width=\"613\" height=\"445\" srcset=\"https:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/trends-and-cis-1895-2012.png 1021w, https:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/trends-and-cis-1895-2012-300x218.png 300w, https:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/trends-and-cis-1895-2012-500x363.png 500w\" sizes=\"auto, (max-width: 613px) 100vw, 613px\" \/><\/a><\/p>\n<p style=\"text-align: left\"><strong>Fig 1. \u00c2\u00a0\u00c2\u00a0<\/strong>Circles are raw data, diamonds are TOBs-adjusted data, and triangles are fully adjusted (F52) data. Solid shapes are urban stations and hollow shapes are rural stations.<\/p>\n<p style=\"text-align: left\">And these trends from 1960-2012:<\/p>\n<p style=\"text-align: center\"><a href=\"http:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/trends-and-cis-1960-2012.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter  wp-image-20483\" src=\"http:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/trends-and-cis-1960-2012.png\" alt=\"\" width=\"613\" height=\"445\" srcset=\"https:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/trends-and-cis-1960-2012.png 1021w, https:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/trends-and-cis-1960-2012-300x218.png 300w, https:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/trends-and-cis-1960-2012-500x363.png 500w\" sizes=\"auto, (max-width: 613px) 100vw, 613px\" \/><\/a><\/p>\n<p><strong>Fig 2. \u00c2\u00a0\u00c2\u00a0<\/strong>Circles are raw data, diamonds are TOBs-adjusted data, and triangles are fully adjusted (F52) data. Solid shapes are urban stations and hollow shapes are rural stations.<\/p>\n<div><\/div>\n<div>Interesting. I could probably reduce the CIs a bit if I looked at the trend of the difference rather than the difference of the trends.<\/div>\n<div>.<\/div>\n<div><strong>Update<\/strong><\/div>\n<div><strong><\/strong>Here is the metadata for the CA USHCN stations: <a href=\"http:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/CA_USHCN_metadata.csv\">metadata<\/a><\/div>\n<div>Raw data by proxy\/urbanity is <a href=\"http:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/CA_USHCN_raw.csv\">here<\/a><\/div>\n<div>\n<div>Tobs data by proxy\/urbanity is <a href=\"http:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/CA_USHCN_tob.csv\">here<\/a><\/div>\n<div>Fully adjusted data by proxy\/urbanity is <a href=\"http:\/\/rankexploits.com\/musings\/wp-content\/uploads\/2012\/08\/CA_USHCN_adj.csv\">here<\/a><\/div>\n<div><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;m rather partial to California, having lived here for the last two years. I&#8217;ve also done a lot of work on UHI issues. So I was rather interested in Anthony&#8217;s post today, and figured a modernization effort (using 1 km resolution remote sensing products) was in order. Given 54 USHCN stations in California and the &hellip; <a href=\"https:\/\/rankexploits.com\/musings\/2012\/uhi-in-california\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">UHI in California<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"class_list":["post-20480","post","type-post","status-publish","format-standard","hentry","category-data-comparisons"],"_links":{"self":[{"href":"https:\/\/rankexploits.com\/musings\/wp-json\/wp\/v2\/posts\/20480","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rankexploits.com\/musings\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rankexploits.com\/musings\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rankexploits.com\/musings\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/rankexploits.com\/musings\/wp-json\/wp\/v2\/comments?post=20480"}],"version-history":[{"count":0,"href":"https:\/\/rankexploits.com\/musings\/wp-json\/wp\/v2\/posts\/20480\/revisions"}],"wp:attachment":[{"href":"https:\/\/rankexploits.com\/musings\/wp-json\/wp\/v2\/media?parent=20480"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rankexploits.com\/musings\/wp-json\/wp\/v2\/categories?post=20480"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rankexploits.com\/musings\/wp-json\/wp\/v2\/tags?post=20480"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}