{"id":289,"date":"2008-05-29T20:03:19","date_gmt":"2008-05-30T03:03:19","guid":{"rendered":"http:\/\/geomediagisblog.wordpress.com\/2008\/05\/29\/national-geodetic-survey-web-site\/"},"modified":"2008-05-29T20:03:19","modified_gmt":"2008-05-30T03:03:19","slug":"national-geodetic-survey-web-site","status":"publish","type":"post","link":"https:\/\/jeffhobbs.com\/?p=289","title":{"rendered":"National Geodetic Survey Web Site"},"content":{"rendered":"

For a while I’ve been wanting to sanity check my GPS points against a known entity. So, I’ve been looking for a set of survey monuments for Santa Clara County. Up to now, I haven’t been able to find them. My plan is to simply shoot the monument with each of my GPS units and compare the results I receive from the unit to the survey monument coordinates. HOPEFULLY they’ll be very similar….<\/p>\n

Anyhow, today I finally got the bright idea to contact the county surveyor’s office. They pointed me to the NGS web site<\/a>. As it turns out, they host survey monuments for the entire nation on this site. Even better, they allow you to download a shapefile with the control points. So next I’ll be loading the shapefile into GeoMedia and then writing a couple of simple functional attributes to translate from lat\/long to California State Plane coordinates. After that, I’ll be able to shoot the survey monuments and finally double check the horizontal accuracy of my GPS systems.<\/p>\n

Not very GeoMedia related, but did want to pass the site along to others looking to do something similar.<\/p>\n","protected":false},"excerpt":{"rendered":"

For a while I’ve been wanting to sanity check my GPS points against a known entity. So, I’ve been looking…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false},"categories":[4,16,6],"tags":[],"acf":[],"yoast_head":"\nNational Geodetic Survey Web Site - jeffhobbs.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jeffhobbs.com\/?p=289\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"National Geodetic Survey Web Site - jeffhobbs.com\" \/>\n<meta property=\"og:description\" content=\"For a while I’ve been wanting to sanity check my GPS points against a known entity. 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