{"id":2946577,"date":"2026-01-13T08:00:54","date_gmt":"2026-01-13T16:00:54","guid":{"rendered":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&#038;p=2946577"},"modified":"2026-02-10T10:23:16","modified_gmt":"2026-02-10T18:23:16","slug":"adjust-stream-to-raster-to-align-hydro-data","status":"publish","type":"blog","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/spatial-analyst\/announcements\/adjust-stream-to-raster-to-align-hydro-data","title":{"rendered":"Align different sources of hydrologic data with Adjust Stream to Raster tool"},"author":246232,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_searchwp_excluded":""},"categories":[37101],"tags":[23371,23011,32891],"industry":[],"product":[36561,37031],"class_list":["post-2946577","blog","type-blog","status-publish","format-standard","hentry","category-announcements","tag-hydrology","tag-raster","tag-stream","product-arcgis-pro","product-spatial-analyst"],"acf":{"authors":[{"ID":246232,"user_firstname":"Tania","user_lastname":"Lopez-Cantu","nickname":"Tania Lopez-Cantu","user_nicename":"tlopezcantu","display_name":"Tania Lopez-Cantu","user_email":"tlopezcantu@esri.com","user_url":"","user_registered":"2021-07-02 17:07:13","user_description":"Tania Lopez-Cantu is a Senior Product Engineer in the Raster Analysis team at Esri. She works with raster and scientific multidimensional data to solve problems in water resources management and climate change impacts. Her role at Esri includes conducting research, building and maintaining tools for hydrological and terrain analysis. She holds a Ph.D. in Civil and Environmental Engineering from Carnegie Mellon University.","user_avatar":"<img data-del=\"avatar\" src='https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/10\/tanialopez-cantu_tan11562-465x465.jpg' class='avatar pp-user-avatar avatar-96 photo ' height='96' width='96'\/>"}],"short_description":"Introducing the new ArcGIS Pro 3.6 Adjust Stream to Raster tool to ensure hydrologic output captures externally sourced correct streamlines.","flexible_content":[{"acf_fc_layout":"content","content":"<p><span data-contrast=\"auto\">Streamline data\u00a0is fundamental for many hydrologic analyses. From floodplain delineation to wetlands identification,\u00a0an accurate\u00a0representation of the streams in a map is\u00a0necessary.\u00a0<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"none\">Streamline data can be obtained in several ways. One method is extracting streams from a digital elevation model (DEM). High\u2011resolution DEMs capture streams in greater detail, but they have limitations \u2014 for example, they may miss human\u2011made infrastructure that affects water flow.\u00a0Another\u00a0option\u00a0is using\u00a0streams from\u00a0external sources, such as the United States Geological Survey (USGS) National Hydrography Dataset (NHD).\u00a0These datasets\u00a0are\u00a0preprocessed\u00a0to ensure\u00a0the\u00a0streams accurately\u00a0represent\u00a0observed water flow.<\/span><span data-ccp-props=\"{&quot;134233279&quot;:true,&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/p>\n<p><span class=\"TextRun SCXW144555763 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun CommentStart SCXW144555763 BCX0\">Often, hydrologic analyses combine external stream data with other raster datasets. In these cases,<\/span><span class=\"NormalTextRun SCXW144555763 BCX0\">\u00a0it<\/span><span class=\"NormalTextRun SCXW144555763 BCX0\">\u00a0is<\/span><span class=\"NormalTextRun SCXW144555763 BCX0\">\u00a0important to ensure they align, so the results reflect\u00a0<\/span><span class=\"NormalTextRun SCXW144555763 BCX0\">a<\/span><span class=\"NormalTextRun SCXW144555763 BCX0\">ccurate<\/span><span class=\"NormalTextRun SCXW144555763 BCX0\">\u00a0<\/span><span class=\"NormalTextRun SCXW144555763 BCX0\">stream locations<\/span><span class=\"NormalTextRun SCXW144555763 BCX0\">. With the new Adjust Stream to Raster tool in ArcGIS Pro 3.6, it is possible to generate a streamline<\/span><span class=\"NormalTextRun SCXW144555763 BCX0\">\u00a0feature output that matches the elevation raster while preserving the original stream paths.<\/span><\/span><span class=\"EOP SCXW144555763 BCX0\" data-ccp-props=\"{&quot;134233279&quot;:true,&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/p>\n"},{"acf_fc_layout":"image","image":{"ID":2953932,"id":2953932,"title":"Figure 1","filename":"Figure1.png","filesize":577610,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Figure1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/spatial-analyst\/announcements\/adjust-stream-to-raster-to-align-hydro-data\/figure1-13","alt":"Two different sources of stream data.","author":"246232","description":"","caption":"Deriving streams directly from elevation data can be different from external sources of stream data at specific locations. See locations pointed by the arrows.","name":"figure1-13","status":"inherit","uploaded_to":2946577,"date":"2026-01-13 06:20:52","modified":"2026-01-13 06:21:33","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":754,"height":561,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Figure1-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Figure1.png","medium-width":351,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Figure1.png","medium_large-width":754,"medium_large-height":561,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Figure1.png","large-width":754,"large-height":561,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Figure1.png","1536x1536-width":754,"1536x1536-height":561,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Figure1.png","2048x2048-width":754,"2048x2048-height":561,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Figure1-625x465.png","card_image-width":625,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Figure1.png","wide_image-width":754,"wide_image-height":561}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<p><span class=\"TextRun SCXW17101906 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun CommentStart SCXW17101906 BCX0\">The Adjust Stream to Raster tool\u00a0<\/span><span class=\"NormalTextRun SCXW17101906 BCX0\">requires input\u00a0<\/span><span class=\"NormalTextRun SCXW17101906 BCX0\">streamline features\u00a0<\/span><span class=\"NormalTextRun SCXW17101906 BCX0\">and an input raster. The tool adjusts the streamlines to match the resolution of the input raster<\/span><span class=\"NormalTextRun SCXW17101906 BCX0\">. Using the optional parameters, you can control the different aspects of the output. For example, you can control how the output streams will be grouped based on a field using the <strong>Group By Field <\/strong>optional parameter. <\/span><span class=\"NormalTextRun SCXW17101906 BCX0\">In addition, you can\u00a0specify which is the <\/span><span class=\"NormalTextRun SCXW17101906 BCX0\">main stream<\/span><span class=\"NormalTextRun SCXW17101906 BCX0\"> when one stream splits into two channels using the <strong>Divergent Flow or Next Path Field <\/strong>optional parameter<\/span><span class=\"NormalTextRun SCXW17101906 BCX0\">.<\/span><span class=\"NormalTextRun SCXW17101906 BCX0\">\u00a0<\/span><\/span><\/p>\n<p><span class=\"NormalTextRun SCXW163745164 BCX0\">The tool also optionally creates two different raster outputs<\/span><span class=\"NormalTextRun SCXW163745164 BCX0\"> if specified. The optional outputs are<\/span><span class=\"NormalTextRun SCXW163745164 BCX0\"> a flow direction raster along the streams and a raster representation of the adjusted stream<\/span><span class=\"NormalTextRun SCXW163745164 BCX0\">line features.\u00a0<\/span><\/p>\n"},{"acf_fc_layout":"image","image":{"ID":2953934,"id":2953934,"title":"Card","filename":"Card-3.png","filesize":880127,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Card-3.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/spatial-analyst\/announcements\/adjust-stream-to-raster-to-align-hydro-data\/card-420","alt":"A stream network.","author":"246232","description":"","caption":"A map showing the location of streams within a specific area.","name":"card-420","status":"inherit","uploaded_to":2946577,"date":"2026-01-13 06:36:36","modified":"2026-01-13 06:37:09","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":826,"height":465,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Card-3-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Card-3.png","medium-width":464,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Card-3.png","medium_large-width":768,"medium_large-height":432,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Card-3.png","large-width":826,"large-height":465,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Card-3.png","1536x1536-width":826,"1536x1536-height":465,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Card-3.png","2048x2048-width":826,"2048x2048-height":465,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Card-3.png","card_image-width":826,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/11\/Card-3.png","wide_image-width":826,"wide_image-height":465}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<p><span class=\"TextRun SCXW128431509 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW128431509 BCX0\">You can use the optional outputs<\/span><span class=\"NormalTextRun SCXW128431509 BCX0\">, for example,\u00a0<\/span><span class=\"NormalTextRun SCXW128431509 BCX0\">to\u00a0<\/span><span class=\"NormalTextRun SCXW128431509 BCX0\">modify<\/span><span class=\"NormalTextRun SCXW128431509 BCX0\">\u00a0the elevation raster to ensure it captures the correct\u00a0<\/span><span class=\"NormalTextRun SCXW128431509 BCX0\">streamlines<\/span><span class=\"NormalTextRun SCXW128431509 BCX0\">\u00a0information<\/span><span class=\"NormalTextRun SCXW128431509 BCX0\">.\u00a0<\/span><\/span><\/p>\n<p><span class=\"TextRun SCXW128431509 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW128431509 BCX0\">When working with externally sourced stream data, take advantage of the new Adjust Stream to Raster tool to\u00a0<\/span><span class=\"NormalTextRun SCXW128431509 BCX0\">ensure your hydrologic analysis captures the most\u00a0<\/span><span class=\"NormalTextRun SCXW128431509 BCX0\">accurate<\/span><span class=\"NormalTextRun SCXW128431509 BCX0\">\u00a0<\/span><span class=\"NormalTextRun CommentStart CommentHighlightPipeRest CommentHighlightRest SCXW128431509 BCX0\">streamline locations<\/span><span class=\"NormalTextRun CommentHighlightPipeRest SCXW128431509 BCX0\">\u00a0while\u00a0<\/span><span class=\"NormalTextRun SCXW128431509 BCX0\">maintaining<\/span><span class=\"NormalTextRun SCXW128431509 BCX0\">\u00a0consistency between your inputs.<\/span><\/span><span class=\"EOP SCXW128431509 BCX0\" data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;201341983&quot;:0,&quot;335551550&quot;:1,&quot;335551620&quot;:1,&quot;335559685&quot;:0,&quot;335559737&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/p>\n"}],"related_articles":[{"ID":1881242,"post_author":"246232","post_date":"2023-03-22 09:00:42","post_date_gmt":"2023-03-22 16:00:42","post_content":"","post_title":"Classify terrain with the new Geomorphon Landforms tool","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"classify-terrain-with-the-new-geomorphon-landforms-tool","to_ping":"","pinged":"","post_modified":"2023-03-23 15:41:06","post_modified_gmt":"2023-03-23 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This tool generates a streamline feature output that matches the elevation raster while preserving the original stream paths.\" \/>\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\/spatial-analyst\/announcements\/adjust-stream-to-raster-to-align-hydro-data\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Align different sources of hydrologic data with Adjust Stream to Raster tool\" \/>\n<meta property=\"og:description\" content=\"Use the Adjust Stream to Raster tool to align different data for hydrologic analysis. 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