{"id":1625132,"date":"2022-06-22T10:02:03","date_gmt":"2022-06-22T17:02:03","guid":{"rendered":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&#038;p=1625132"},"modified":"2022-06-22T10:02:03","modified_gmt":"2022-06-22T17:02:03","slug":"flipping-the-world-inside-out-with-guest-cartographer-sparrow","status":"publish","type":"blog","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/education\/flipping-the-world-inside-out-with-guest-cartographer-sparrow","title":{"rendered":"Flipping the World Inside Out, with Guest Cartographer Sparrow"},"author":6971,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_searchwp_excluded":""},"categories":[430042,22941],"tags":[25781,26451,31921,765852,315102],"industry":[],"product":[36561],"class_list":["post-1625132","blog","type-blog","status-publish","format-standard","hentry","category-education","category-mapping","tag-3d","tag-cartography","tag-education","tag-mountains","tag-oceans","product-arcgis-pro"],"acf":{"short_description":"How to turn the world upside down and see what mountains would look like if they were reversed into oceans, and vice-versa!","flexible_content":[{"acf_fc_layout":"content","content":"<p>Often I find the best way of understanding something is to try to imagine its opposite. There&#8217;s probably a word for that in the field of rhetoric, but I don&#8217;t know what it is. So I&#8217;ll just imagine that I do.<\/p>\n<p>In the past couple of weeks I&#8217;ve been asked by two different folks about how to invert the elevation of Earth, such that oceans were mountains and mountains were oceans. Marek Dor\u0161ic, of <a href=\"https:\/\/www.arcgeo.sk\/\" target=\"_blank\" rel=\"noopener\">ArcGEO<\/a> in Slovakia, said that his daughter had this question. So my daughter Sparrow and I endeavored to try it out&#8230;<\/p>\n"},{"acf_fc_layout":"youtube","start_time":"0","end_time":"","youtube_video_url":"<iframe title=\"Flipping the World Inside Out, with Guest Cartographer Sparrow\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/yB7Ca86xdcA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>"},{"acf_fc_layout":"content","content":"<p>Ok, here is the gist, my friends! Grab your digital elevation model (I used a DEM from the magnificent <a href=\"https:\/\/www.gebco.net\/data_and_products\/gridded_bathymetry_data\/\" target=\"_blank\" rel=\"noopener\">GEBCO<\/a> team) and use the &#8220;<a href=\"https:\/\/pro.arcgis.com\/en\/pro-app\/latest\/help\/analysis\/raster-functions\/negate-function.htm\" target=\"_blank\" rel=\"noopener\">negate<\/a>&#8221; raster function to reverse the values. In the resulting image, the highest elevations are now the lowest, and vice-versa. Then you can whip up a custom color gradient to paint in the bathymetry (which used to be dry land) and topography (which used to be under water) to taste. Then, if you are feeling adventurous (and if you&#8217;ve come this far then of course you are) you can convert your map into a 3D global scene, make a copy of the inverted elevation, the drag that into the surface layer group to assign the 3D vertical texture to your wacky reversed elevation. Then explore our inside-out world with someone who is sparkling with curiosity and insights.<\/p>\n<p>Love, John and Sparrow<\/p>\n"}],"authors":[{"ID":6971,"user_firstname":"John","user_lastname":"Nelson","nickname":"John Nelson","user_nicename":"j_nelson","display_name":"John Nelson","user_email":"John_Nelson@esri.com","user_url":"http:\/\/www.adventuresinmapping.com","user_registered":"2018-03-02 00:19:05","user_description":"I have far too much fun looking for ways to understand and present data visually, hopefully driving product strategy and engaging users. I work in the ArcGIS Living Atlas team at Esri, pushing and pulling data in all sorts of absurd ways and then sharing the process. I also design user experiences for maps and apps.\r\nWhen I'm not doing those things, I'm chasing around toddlers and wrangling chickens, and generally getting into other ad-hoc adventures. Life is good.\r\nYou might also like these Styles for ArcGIS Pro: esriurl.com\/nelsonstyles","user_avatar":"<img data-del=\"avatar\" src='https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2018\/04\/Profile.jpg' class='avatar pp-user-avatar avatar-96 photo ' height='96' width='96'\/>"}],"related_articles":"","card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/06\/InvertedEarth_Card.jpg","wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/06\/InvertedEarth_Banner.jpg"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.9 (Yoast SEO v25.9) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Flipping the World Inside Out, with Guest Cartographer Sparrow<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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I work in the ArcGIS Living Atlas team at Esri, pushing and pulling data in all sorts of absurd ways and then sharing the process. I also design user experiences for maps and apps. When I'm not doing those things, I'm chasing around toddlers and wrangling chickens, and generally getting into other ad-hoc adventures. Life is good. 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