{"id":680142,"date":"2020-02-11T11:00:46","date_gmt":"2020-02-11T19:00:46","guid":{"rendered":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&p=680142"},"modified":"2020-02-19T09:39:02","modified_gmt":"2020-02-19T17:39:02","slug":"unmixing-dirt-mapping-ancient-lakes-in-the-desert","status":"publish","type":"blog","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert","title":{"rendered":"Unmixing Dirt: Mapping Ancient Lakes in the Desert"},"author":9732,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_searchwp_excluded":""},"categories":[22931],"tags":[34831,432762,28271,39421,291812],"industry":[],"product":[36561,37031],"class_list":["post-680142","blog","type-blog","status-publish","format-standard","hentry","category-imagery","tag-geology","tag-image-analyst","tag-image-classification","tag-spatial-analyst","tag-spectral-profile","product-arcgis-pro","product-spatial-analyst"],"acf":{"short_description":"This article presents a use case for the new Linear Spectral Unmixing tool, available in ArcGIS Pro 2.5.","flexible_content":[{"acf_fc_layout":"content","content":"

Growing up in the Mojave Desert I often longed to be somewhere else\u2014somewhere greener. As a child, I played in the foothills of the San Bernardino mountains and, naturally, wondered what was on the other side. I liked to imagine a dark, raging ocean.<\/p>\n

Now, as a geologist, the desert is a wonderful puzzle. It contains chapters from the story of this continent and those worlds that came before it. The chapters have been reordered, pages torn, and many are missing; although, the dry climate has exposed and preserved rocks that tell of shallow tropical seas and white sand beaches. In the late afternoon, the wind streams over lonely outcrops of limestone that once formed ancient reefs at the edge of ancestral North America. As it turns out, almost everywhere was once a beach.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":680332,"id":680332,"title":"False_Color_Print","filename":"False_Color_Print.png","filesize":1807336,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/False_Color_Print.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert\/false_color_print","alt":"Mojave in false color","author":"9732","description":"","caption":"","name":"false_color_print","status":"inherit","uploaded_to":680142,"date":"2019-12-12 23:00:57","modified":"2019-12-12 23:01:33","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1237,"height":659,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/False_Color_Print-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/False_Color_Print.png","medium-width":464,"medium-height":247,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/False_Color_Print.png","medium_large-width":768,"medium_large-height":409,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/False_Color_Print.png","large-width":1237,"large-height":659,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/False_Color_Print.png","1536x1536-width":1237,"1536x1536-height":659,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/False_Color_Print.png","2048x2048-width":1237,"2048x2048-height":659,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/False_Color_Print-826x440.png","card_image-width":826,"card_image-height":440,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/False_Color_Print.png","wide_image-width":1237,"wide_image-height":659}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/False_Color_Print.png"},{"acf_fc_layout":"content","content":"

The Mojave is a great location for armchair geology. Pull in Landsat imagery from Living Atlas of the World<\/a> in ArcGIS Pro, and you\u2019ll find a rich palette of brown, maroon, and swirls of ivory. Contrasts in rock type are accentuated in false color, where alluvial aprons flow into and against one another. White smudges form the remnants of ancient lakes, and the dark blotches record periods of volcanism in the desert.<\/p>\n

Imagine standing on the marshy, evening shores of Lake Manix, while to the southeast, a fire fountain lights up the sky and basalt sears the landscape. The lake, of course, is no longer there, but we can see its imprint to the east of Barstow, CA.<\/p>\n

Spectral Unmixing<\/strong><\/h3>\n

The geologic timescale is unimaginably deep. I would love to slide down through the epochs, but let\u2019s start small. Fifteen thousand years ago\u2014hardly a blip even in recent geologic time\u2014the Mojave Desert was a wetter, cooler place. A system of perennial lakes stretched across the region, fed by the Mojave river to the south and the Owens and Amargosa rivers to the north. The shadows of this system are apparent in the bright salt crusts that remain, although the true extent has been dulled by erosion.<\/p>\n

At this point, you\u2019re wondering, \u201cWhen do we get into GIS?\u201d Well, I thought I would use the new Linear Spectral Unmixing<\/a> tool, available in Pro with an Image Analyst or Spatial Analyst extension, to map the range of ancient lake and river deposits and imagine the Mojave as it was. If you aren\u2019t interested in rocks or dirt, the results, if nothing else, are mesmerizing.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":681092,"id":681092,"title":"Center_Results_4class","filename":"Center_Results_4class.png","filesize":1416061,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Center_Results_4class.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert\/center_results_4class","alt":"Linear spectral unmixing results for Barstow, CA","author":"9732","description":"","caption":"","name":"center_results_4class","status":"inherit","uploaded_to":680142,"date":"2019-12-13 18:10:16","modified":"2019-12-13 18:11:22","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1106,"height":580,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Center_Results_4class-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Center_Results_4class.png","medium-width":464,"medium-height":243,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Center_Results_4class.png","medium_large-width":768,"medium_large-height":403,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Center_Results_4class.png","large-width":1106,"large-height":580,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Center_Results_4class.png","1536x1536-width":1106,"1536x1536-height":580,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Center_Results_4class.png","2048x2048-width":1106,"2048x2048-height":580,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Center_Results_4class-826x433.png","card_image-width":826,"card_image-height":433,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Center_Results_4class.png","wide_image-width":1106,"wide_image-height":580}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Center_Results_4class.png"},{"acf_fc_layout":"content","content":"

The utility of this tool lies in land cover classification<\/a>, particularly for coarse-resolution imagery like Landsat. Often, individual pixels capture multiple land cover types, and it\u2019s difficult to map mixed areas or quantify land cover change. The Linear Spectral Unmixing tool untangles the spectral signatures in each pixel and resolves the contribution from each land cover class.<\/p>\n

Training and Psychedelic Results<\/strong><\/h3>\n

To generate the raster above, I first used the Training Samples Manager<\/a> to build a classification schema that defined three broad rock or surface classes: granite, basalt, and lake deposits. For a bit of unsolicited geologic background, granite generally occupies the higher end of the silica range, while basalt sits toward the low end and is rich in iron and magnesium. This mineralogical difference dictates whether you get an explode-y volcano, like Mount St. Helens, or a flowy volcano, like Mauna Loa.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":731972,"id":731972,"title":"Spec_prof_1","filename":"Spec_prof_1-2.png","filesize":1043416,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_1-2.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert\/spec_prof_1-3","alt":"Spectral curves for different land cover classes","author":"9732","description":"","caption":"","name":"spec_prof_1-3","status":"inherit","uploaded_to":680142,"date":"2020-02-11 17:25:11","modified":"2020-02-11 17:25:34","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1327,"height":854,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_1-2-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_1-2.png","medium-width":406,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_1-2.png","medium_large-width":768,"medium_large-height":494,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_1-2.png","large-width":1327,"large-height":854,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_1-2.png","1536x1536-width":1327,"1536x1536-height":854,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_1-2.png","2048x2048-width":1327,"2048x2048-height":854,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_1-2-723x465.png","card_image-width":723,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_1-2.png","wide_image-width":1327,"wide_image-height":854}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_1-2.png"},{"acf_fc_layout":"content","content":"

I wanted to test whether this schema could also capture the sediments derived from these rocks, since they should have similar mineral compositions and, therefore, comparable spectral signatures<\/a>.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":731982,"id":731982,"title":"Spec_prof_2","filename":"Spec_prof_2-1.png","filesize":299756,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_2-1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert\/spec_prof_2-2","alt":"Spectral profiles for granitic rock and derived sediment","author":"9732","description":"","caption":"","name":"spec_prof_2-2","status":"inherit","uploaded_to":680142,"date":"2020-02-11 17:26:15","modified":"2020-02-11 17:26:27","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1327,"height":854,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_2-1-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_2-1.png","medium-width":406,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_2-1.png","medium_large-width":768,"medium_large-height":494,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_2-1.png","large-width":1327,"large-height":854,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_2-1.png","1536x1536-width":1327,"1536x1536-height":854,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_2-1.png","2048x2048-width":1327,"2048x2048-height":854,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_2-1-723x465.png","card_image-width":723,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_2-1.png","wide_image-width":1327,"wide_image-height":854}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Spec_prof_2-1.png"},{"acf_fc_layout":"content","content":"

I selected my training samples from areas of known rock type using a geologic map for reference. Geologists love maps, by the way. Each fall and spring, new geology students traipse into the field with a blank map, a Brunton Pocket Transit, and cargo pants full of colored pencils. They (hopefully) emerge with a colorful portrait of geologic structure. These results are reminiscent of a 3-band geologic map<\/a> . . . sort of.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":680402,"id":680402,"title":"Geo_swipe3","filename":"Geo_swipe3.gif","filesize":893022,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Geo_swipe3.gif","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert\/geo_swipe3","alt":"Geologic map with unmixing results","author":"9732","description":"","caption":"","name":"geo_swipe3","status":"inherit","uploaded_to":680142,"date":"2019-12-13 00:02:04","modified":"2020-01-03 18:09:09","menu_order":0,"mime_type":"image\/gif","type":"image","subtype":"gif","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":750,"height":421,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Geo_swipe3-213x200.gif","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Geo_swipe3.gif","medium-width":464,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Geo_swipe3.gif","medium_large-width":750,"medium_large-height":421,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Geo_swipe3.gif","large-width":750,"large-height":421,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Geo_swipe3.gif","1536x1536-width":750,"1536x1536-height":421,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Geo_swipe3.gif","2048x2048-width":750,"2048x2048-height":421,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Geo_swipe3.gif","card_image-width":750,"card_image-height":421,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Geo_swipe3.gif","wide_image-width":750,"wide_image-height":421}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Geo_swipe3.gif"},{"acf_fc_layout":"content","content":"

Basaltic, iron-bearing rocks and sediment appear red, whereas silica-rich surfaces glow in neon green. Lake and alluvial sediments are appropriately assigned to blue and are generally composed of fine-grained sand, clay, silt and salts. Spectrally pure endmembers\u2014lava flows, granite mountains and dry lake beds\u2014are thick brushstrokes and dollops of color. Mixed pixels occupy valleys, where alluvial flows merge.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":681542,"id":681542,"title":"SE_volcanic_field2","filename":"SE_volcanic_field2.png","filesize":1607030,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/SE_volcanic_field2.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert\/se_volcanic_field2-2","alt":"Cinder cones and basalt flows","author":"9732","description":"","caption":"","name":"se_volcanic_field2-2","status":"inherit","uploaded_to":680142,"date":"2019-12-13 21:58:32","modified":"2019-12-13 21:59:15","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1202,"height":635,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/SE_volcanic_field2-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/SE_volcanic_field2.png","medium-width":464,"medium-height":245,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/SE_volcanic_field2.png","medium_large-width":768,"medium_large-height":406,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/SE_volcanic_field2.png","large-width":1202,"large-height":635,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/SE_volcanic_field2.png","1536x1536-width":1202,"1536x1536-height":635,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/SE_volcanic_field2.png","2048x2048-width":1202,"2048x2048-height":635,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/SE_volcanic_field2-826x436.png","card_image-width":826,"card_image-height":436,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/SE_volcanic_field2.png","wide_image-width":1202,"wide_image-height":635}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/SE_volcanic_field2.png"},{"acf_fc_layout":"image","image":{"ID":681202,"id":681202,"title":"Lavic Lake_print","filename":"Lavic-Lake_print.png","filesize":1787721,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Lavic-Lake_print.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert\/lavic-lake_print","alt":"Unmixing results southeast of Barstow, CA","author":"9732","description":"","caption":"","name":"lavic-lake_print","status":"inherit","uploaded_to":680142,"date":"2019-12-13 18:46:30","modified":"2019-12-13 18:46:56","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1277,"height":646,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Lavic-Lake_print-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Lavic-Lake_print.png","medium-width":464,"medium-height":235,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Lavic-Lake_print.png","medium_large-width":768,"medium_large-height":389,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Lavic-Lake_print.png","large-width":1277,"large-height":646,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Lavic-Lake_print.png","1536x1536-width":1277,"1536x1536-height":646,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Lavic-Lake_print.png","2048x2048-width":1277,"2048x2048-height":646,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Lavic-Lake_print-826x418.png","card_image-width":826,"card_image-height":418,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Lavic-Lake_print.png","wide_image-width":1277,"wide_image-height":646}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Lavic-Lake_print.png"},{"acf_fc_layout":"content","content":"

Extracting Lake Sediments<\/strong><\/h3>\n

It\u2019s difficult to visually discern the makeup of mixed zones and nearly impossible on a per-pixel basis. With the unmixed raster, however, I can click on any pixel and a pop-up will list the fractional composition for that pixel. From here, I can filter and extract pixels according to the fractional land cover values to create a map of ancient lake sediments. To do this, I used the Extract Bands and Mask functions to extract the \u201cLake Deposits\u201d band and display only those pixels with a fractional value of 60% or greater. Once I refined my workflow, I chained the functions together in a raster function template<\/a> to automate processing for the remaining Landsat scenes.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":680232,"id":680232,"title":"pop_up","filename":"pop_up.png","filesize":583764,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/pop_up.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert\/pop_up","alt":"Fractional pixel values","author":"9732","description":"","caption":"","name":"pop_up","status":"inherit","uploaded_to":680142,"date":"2019-12-12 21:32:31","modified":"2019-12-12 21:32:50","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":698,"height":530,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/pop_up-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/pop_up.png","medium-width":344,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/pop_up.png","medium_large-width":698,"medium_large-height":530,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/pop_up.png","large-width":698,"large-height":530,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/pop_up.png","1536x1536-width":698,"1536x1536-height":530,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/pop_up.png","2048x2048-width":698,"2048x2048-height":530,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/pop_up-612x465.png","card_image-width":612,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/pop_up.png","wide_image-width":698,"wide_image-height":530}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"image","image":{"ID":687342,"id":687342,"title":"RTF_LinSpec","filename":"RTF_LinSpec.png","filesize":3465,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/RTF_LinSpec.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert\/rtf_linspec","alt":"Raster Function Template","author":"9732","description":"","caption":"","name":"rtf_linspec","status":"inherit","uploaded_to":680142,"date":"2019-12-20 17:08:45","modified":"2019-12-20 17:09:08","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":619,"height":143,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/RTF_LinSpec-213x143.png","thumbnail-width":213,"thumbnail-height":143,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/RTF_LinSpec.png","medium-width":464,"medium-height":107,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/RTF_LinSpec.png","medium_large-width":619,"medium_large-height":143,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/RTF_LinSpec.png","large-width":619,"large-height":143,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/RTF_LinSpec.png","1536x1536-width":619,"1536x1536-height":143,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/RTF_LinSpec.png","2048x2048-width":619,"2048x2048-height":143,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/RTF_LinSpec.png","card_image-width":619,"card_image-height":143,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/RTF_LinSpec.png","wide_image-width":619,"wide_image-height":143}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

A Wetter Desert<\/strong><\/h3>\n

Finally, here\u2019s how the Mojave may have looked during the last glacial period. Not all the lakes and drainages existed at the same time, but it\u2019s fun to imagine an environment very different from the one we know today. This is the heart of historical geology\u2014piecing together Earth\u2019s past and resurrecting long-extinct places.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":681552,"id":681552,"title":"Final Map_print","filename":"Final-Map_print.png","filesize":614138,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/Final-Map_print.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert\/final-map_print","alt":"Lake and river deposits in the Mojave Desert","author":"9732","description":"","caption":"","name":"final-map_print","status":"inherit","uploaded_to":680142,"date":"2019-12-13 22:00:20","modified":"2019-12-13 22:00:54","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":944,"height":840,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/Final-Map_print-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/Final-Map_print.png","medium-width":293,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/Final-Map_print.png","medium_large-width":768,"medium_large-height":683,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/Final-Map_print.png","large-width":944,"large-height":840,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/Final-Map_print.png","1536x1536-width":944,"1536x1536-height":840,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/Final-Map_print.png","2048x2048-width":944,"2048x2048-height":840,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/Final-Map_print-523x465.png","card_image-width":523,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/Final-Map_print.png","wide_image-width":944,"wide_image-height":840}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/01\/Final-Map_print.png"},{"acf_fc_layout":"content","content":"

Well, that about does it. Thanks for sticking with me to the end. If you enjoyed this foray into Earth history in ArcGIS Pro, stay tuned for future geology-themed posts.<\/p>\n"}],"authors":[{"ID":9732,"user_firstname":"Drew","user_lastname":"Faherty","nickname":"dfaherty","user_nicename":"dfaherty","display_name":"Drew Faherty","user_email":"dfaherty@esri.com","user_url":"","user_registered":"2019-07-08 15:10:12","user_description":"Drew was a product engineer on the Esri raster team.","user_avatar":""}],"related_articles":"","card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Banner2.png","wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Banner2-4-e1581438687711.png"},"yoast_head":"\nUnmixing Dirt: Mapping Ancient Lakes in the Desert<\/title>\n<meta name=\"description\" content=\"Learn about the new Linear Spectral Unmixing tool, available in ArcGIS Pro. Perform subpixel classification and gain more insight into your imagery data.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Unmixing Dirt: Mapping Ancient Lakes in the Desert\" \/>\n<meta property=\"og:description\" content=\"Learn about the new Linear Spectral Unmixing tool, available in ArcGIS Pro. Perform subpixel classification and gain more insight into your imagery data.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert\" \/>\n<meta property=\"og:site_name\" content=\"ArcGIS Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/esrigis\/\" \/>\n<meta property=\"article:modified_time\" content=\"2020-02-19T17:39:02+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@ESRI\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":[\"Article\",\"BlogPosting\"],\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert\"},\"author\":{\"name\":\"Drew Faherty\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/person\/75528c5b798ffcd91341821c7f35916a\"},\"headline\":\"Unmixing Dirt: Mapping Ancient Lakes in the Desert\",\"datePublished\":\"2020-02-11T19:00:46+00:00\",\"dateModified\":\"2020-02-19T17:39:02+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert\"},\"wordCount\":8,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#organization\"},\"keywords\":[\"Geology\",\"Image Analyst\",\"Image Classification\",\"Spatial Analyst\",\"spectral profile\"],\"articleSection\":[\"Imagery & Remote Sensing\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert\",\"url\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert\",\"name\":\"Unmixing Dirt: Mapping Ancient Lakes in the Desert\",\"isPartOf\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#website\"},\"datePublished\":\"2020-02-11T19:00:46+00:00\",\"dateModified\":\"2020-02-19T17:39:02+00:00\",\"description\":\"Learn about the new Linear Spectral Unmixing tool, available in ArcGIS Pro. Perform subpixel classification and gain more insight into your imagery data.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.esri.com\/arcgis-blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Unmixing Dirt: Mapping Ancient Lakes in the Desert\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#website\",\"url\":\"https:\/\/www.esri.com\/arcgis-blog\/\",\"name\":\"ArcGIS Blog\",\"description\":\"Get insider info from Esri product teams\",\"publisher\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.esri.com\/arcgis-blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#organization\",\"name\":\"Esri\",\"url\":\"https:\/\/www.esri.com\/arcgis-blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2018\/04\/Esri.png\",\"contentUrl\":\"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2018\/04\/Esri.png\",\"width\":400,\"height\":400,\"caption\":\"Esri\"},\"image\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/esrigis\/\",\"https:\/\/x.com\/ESRI\",\"https:\/\/www.linkedin.com\/company\/5311\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/person\/75528c5b798ffcd91341821c7f35916a\",\"name\":\"Drew Faherty\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/9ae7bafcfc2c321df6673bfb844285380c6a695393af6def21d0d4c4ee046f81?s=96&d=blank&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/9ae7bafcfc2c321df6673bfb844285380c6a695393af6def21d0d4c4ee046f81?s=96&d=blank&r=g\",\"caption\":\"Drew Faherty\"},\"description\":\"Drew was a product engineer on the Esri raster team.\",\"url\":\"https:\/\/www.esri.com\/arcgis-blog\/author\/dfaherty\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Unmixing Dirt: Mapping Ancient Lakes in the Desert","description":"Learn about the new Linear Spectral Unmixing tool, available in ArcGIS Pro. Perform subpixel classification and gain more insight into your imagery data.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert","og_locale":"en_US","og_type":"article","og_title":"Unmixing Dirt: Mapping Ancient Lakes in the Desert","og_description":"Learn about the new Linear Spectral Unmixing tool, available in ArcGIS Pro. Perform subpixel classification and gain more insight into your imagery data.","og_url":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert","og_site_name":"ArcGIS Blog","article_publisher":"https:\/\/www.facebook.com\/esrigis\/","article_modified_time":"2020-02-19T17:39:02+00:00","twitter_card":"summary_large_image","twitter_site":"@ESRI","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":["Article","BlogPosting"],"@id":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert#article","isPartOf":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert"},"author":{"name":"Drew Faherty","@id":"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/person\/75528c5b798ffcd91341821c7f35916a"},"headline":"Unmixing Dirt: Mapping Ancient Lakes in the Desert","datePublished":"2020-02-11T19:00:46+00:00","dateModified":"2020-02-19T17:39:02+00:00","mainEntityOfPage":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert"},"wordCount":8,"commentCount":0,"publisher":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/#organization"},"keywords":["Geology","Image Analyst","Image Classification","Spatial Analyst","spectral profile"],"articleSection":["Imagery & Remote Sensing"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert","url":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert","name":"Unmixing Dirt: Mapping Ancient Lakes in the Desert","isPartOf":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/#website"},"datePublished":"2020-02-11T19:00:46+00:00","dateModified":"2020-02-19T17:39:02+00:00","description":"Learn about the new Linear Spectral Unmixing tool, available in ArcGIS Pro. Perform subpixel classification and gain more insight into your imagery data.","breadcrumb":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/imagery\/unmixing-dirt-mapping-ancient-lakes-in-the-desert#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.esri.com\/arcgis-blog\/"},{"@type":"ListItem","position":2,"name":"Unmixing Dirt: Mapping Ancient Lakes in the Desert"}]},{"@type":"WebSite","@id":"https:\/\/www.esri.com\/arcgis-blog\/#website","url":"https:\/\/www.esri.com\/arcgis-blog\/","name":"ArcGIS Blog","description":"Get insider info from Esri product teams","publisher":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.esri.com\/arcgis-blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.esri.com\/arcgis-blog\/#organization","name":"Esri","url":"https:\/\/www.esri.com\/arcgis-blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2018\/04\/Esri.png","contentUrl":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2018\/04\/Esri.png","width":400,"height":400,"caption":"Esri"},"image":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/esrigis\/","https:\/\/x.com\/ESRI","https:\/\/www.linkedin.com\/company\/5311\/"]},{"@type":"Person","@id":"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/person\/75528c5b798ffcd91341821c7f35916a","name":"Drew Faherty","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/9ae7bafcfc2c321df6673bfb844285380c6a695393af6def21d0d4c4ee046f81?s=96&d=blank&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/9ae7bafcfc2c321df6673bfb844285380c6a695393af6def21d0d4c4ee046f81?s=96&d=blank&r=g","caption":"Drew Faherty"},"description":"Drew was a product engineer on the Esri raster team.","url":"https:\/\/www.esri.com\/arcgis-blog\/author\/dfaherty"}]}},"text_date":"February 11, 2020","author_name":"Drew Faherty","author_page":"https:\/\/www.esri.com\/arcgis-blog\/author\/dfaherty","custom_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/12\/Banner2-4-e1581438687711.png","primary_product":"ArcGIS Pro","tag_data":[{"term_id":34831,"name":"Geology","slug":"geology","term_group":0,"term_taxonomy_id":34831,"taxonomy":"post_tag","description":"","parent":0,"count":7,"filter":"raw"},{"term_id":432762,"name":"Image Analyst","slug":"image-analyst","term_group":0,"term_taxonomy_id":432762,"taxonomy":"post_tag","description":"","parent":0,"count":27,"filter":"raw"},{"term_id":28271,"name":"Image Classification","slug":"image-classification","term_group":0,"term_taxonomy_id":28271,"taxonomy":"post_tag","description":"","parent":0,"count":13,"filter":"raw"},{"term_id":39421,"name":"Spatial Analyst","slug":"spatial-analyst","term_group":0,"term_taxonomy_id":39421,"taxonomy":"post_tag","description":"","parent":0,"count":49,"filter":"raw"},{"term_id":291812,"name":"spectral profile","slug":"spectral-profile","term_group":0,"term_taxonomy_id":291812,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"}],"category_data":[{"term_id":22931,"name":"Imagery & Remote Sensing","slug":"imagery","term_group":0,"term_taxonomy_id":22931,"taxonomy":"category","description":"","parent":0,"count":770,"filter":"raw"}],"product_data":[{"term_id":36561,"name":"ArcGIS Pro","slug":"arcgis-pro","term_group":0,"term_taxonomy_id":36561,"taxonomy":"product","description":"","parent":0,"count":2045,"filter":"raw"},{"term_id":37031,"name":"ArcGIS Spatial Analyst","slug":"spatial-analyst","term_group":0,"term_taxonomy_id":37031,"taxonomy":"product","description":"","parent":36981,"count":93,"filter":"raw"}],"primary_product_link":"https:\/\/www.esri.com\/arcgis-blog\/?s=#&products=arcgis-pro","_links":{"self":[{"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/blog\/680142","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/types\/blog"}],"author":[{"embeddable":true,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/users\/9732"}],"replies":[{"embeddable":true,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/comments?post=680142"}],"version-history":[{"count":0,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/blog\/680142\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/media?parent=680142"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/categories?post=680142"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/tags?post=680142"},{"taxonomy":"industry","embeddable":true,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/industry?post=680142"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/product?post=680142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}