{"id":1328382,"date":"2021-08-20T13:25:57","date_gmt":"2021-08-20T20:25:57","guid":{"rendered":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&#038;p=1328382"},"modified":"2021-08-20T13:25:00","modified_gmt":"2021-08-20T20:25:00","slug":"ecus-available","status":"publish","type":"blog","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-living-atlas\/mapping\/ecus-available","title":{"rendered":"Ecological Coastal Units (ECUs) Available"},"author":6701,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_searchwp_excluded":""},"categories":[22941,22771,37511],"tags":[30501,761712,43811,28541,176452],"industry":[],"product":[36581,36551,36561],"class_list":["post-1328382","blog","type-blog","status-publish","format-standard","hentry","category-mapping","category-natural-resources","category-sharing-collaboration","tag-coastal","tag-ecological","tag-ecosystems","tag-global","tag-mapping","product-arcgis-living-atlas","product-arcgis-online","product-arcgis-pro"],"acf":{"short_description":"Our global shorelines are intricate and complex.  Gain understanding of how diverse the shorelines are using Ecological Coastal Units.","flexible_content":[{"acf_fc_layout":"content","content":"<p>A new set of resources is now available that describe global shoreline characteristics.\u00a0 Ecological Coastal Units (ECUs) were developed by the U.S. Geological Survey (USGS) in partnership with Esri and the <a href=\"https:\/\/marinebon.org\/\">Marine Biodiversity Observation Network (MBON)<\/a>. These data were developed as part of a <a href=\"https:\/\/earthobservations.org\/index.php\">Group on Earth Observations (GEO)<\/a> initiative called GEO Ecosystems (GEO ECO), and is associated with a GEO ECO task to develop global coastal ecosystems data.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1329702,"id":1329702,"title":"ECU_Combined_CMYK","filename":"ECU_Combined_CMYK-scaled.jpg","filesize":211123,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Combined_CMYK-scaled.jpg","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-living-atlas\/mapping\/ecus-available\/ecu_combined_cmyk","alt":"","author":"6701","description":"","caption":"The global distributions of the 16 ECUs.","name":"ecu_combined_cmyk","status":"inherit","uploaded_to":1328382,"date":"2021-08-19 13:17:33","modified":"2021-08-19 13:28:01","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":2560,"height":1247,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Combined_CMYK-213x200.jpg","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Combined_CMYK-scaled.jpg","medium-width":464,"medium-height":226,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Combined_CMYK-scaled.jpg","medium_large-width":768,"medium_large-height":374,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Combined_CMYK-scaled.jpg","large-width":1920,"large-height":935,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Combined_CMYK-1536x748.jpg","1536x1536-width":1536,"1536x1536-height":748,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Combined_CMYK-2048x997.jpg","2048x2048-width":2048,"2048x2048-height":997,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Combined_CMYK-826x402.jpg","card_image-width":826,"card_image-height":402,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Combined_CMYK-1920x935.jpg","wide_image-width":1920,"wide_image-height":935}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<p>The data allows for the visualization and query of any stretch of coastline on Earth, except for Antarctica. The underlying data are 4 million 1km or shorter coastal segments, each of which is attributed with values from ten ecological settings variables representing the adjacent ocean, the adjacent land, and the coastline itself.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1332122,"id":1332122,"title":"ECU_Descriptor","filename":"ECU_Descriptor.png","filesize":769466,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Descriptor.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-living-atlas\/mapping\/ecus-available\/ecu_descriptor","alt":"","author":"6701","description":"","caption":"Each 1km coastal segment contains the ECU cluster and the CSU description information.","name":"ecu_descriptor","status":"inherit","uploaded_to":1328382,"date":"2021-08-20 20:19:10","modified":"2021-08-20 20:19:41","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":1712,"height":963,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Descriptor-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Descriptor.png","medium-width":464,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Descriptor.png","medium_large-width":768,"medium_large-height":432,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Descriptor.png","large-width":1712,"large-height":963,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Descriptor-1536x864.png","1536x1536-width":1536,"1536x1536-height":864,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Descriptor.png","2048x2048-width":1712,"2048x2048-height":963,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Descriptor-826x465.png","card_image-width":826,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Descriptor.png","wide_image-width":1712,"wide_image-height":963}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<p>The 4 million coastal segments were classified into 81,000 coastal segment units (CSUs) using the <a href=\"https:\/\/iocm.noaa.gov\/standards\/cmecs-home.html\">Coastal and Marine Ecosystem Classification Standard (CMECS)<\/a>. Each distinct CSU is a segment with a unique combination of the classes of values of the ten ecological settings variables. The 4 million segments were also clustered into a set of 16 global groups of coastlines which are similar in the aggregate ecological setting described by the ten variables.<\/p>\n<p>The set of 10 attributes describe the aggregated ecological setting in which the coastal segments occur. The values for these variables are drawn from a variety of data sources and attributed to the coastal segment midpoints.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1329722,"id":1329722,"title":"Cluster_Descriptive_Statistics","filename":"Cluster_Descriptive_Statistics.png","filesize":73495,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/Cluster_Descriptive_Statistics.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-living-atlas\/mapping\/ecus-available\/cluster_descriptive_statistics","alt":"","author":"6701","description":"","caption":"Descriptive statistics on the distributions and average compositional characteristics of the ecological coastal units (ECUs).","name":"cluster_descriptive_statistics","status":"inherit","uploaded_to":1328382,"date":"2021-08-19 13:19:43","modified":"2021-08-19 13:20:20","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":1457,"height":736,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/Cluster_Descriptive_Statistics-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/Cluster_Descriptive_Statistics.png","medium-width":464,"medium-height":234,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/Cluster_Descriptive_Statistics.png","medium_large-width":768,"medium_large-height":388,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/Cluster_Descriptive_Statistics.png","large-width":1457,"large-height":736,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/Cluster_Descriptive_Statistics.png","1536x1536-width":1457,"1536x1536-height":736,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/Cluster_Descriptive_Statistics.png","2048x2048-width":1457,"2048x2048-height":736,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/Cluster_Descriptive_Statistics-826x417.png","card_image-width":826,"card_image-height":417,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/Cluster_Descriptive_Statistics.png","wide_image-width":1457,"wide_image-height":736}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<p>These 10 variables represent the ecological settings of coastal environments.<\/p>\n<ul>\n<li>two land variables,<\/li>\n<li>five ocean variables, and<\/li>\n<li>three coastline variables.<\/li>\n<\/ul>\n<p>Each segment midpoint was attributed with values for each of the 10 variables. The variables describing the ocean environment included an integrated measure of physical properties (temperature, salinity, and dissolved oxygen), and chlorophyll concentration, tidal range, wave height, and turbidity. The variables describing the land environment were climate setting (as an integrated measure of long-term temperature and precipitation), and an index of erodibility. The variables describing the coastline were its regional sinuosity, the slope profile of a 200m perpendicular line segment extending 100m landward and 100m seaward from every segment midpoint, and an index of river outflow.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1329092,"id":1329092,"title":"Ecological Coastal Unit Mapping Approach - Coastal Segment Attributes","filename":"ECU_Methodology.png","filesize":36111,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Methodology.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-living-atlas\/mapping\/ecus-available\/ecu_methodology","alt":"","author":"6701","description":"","caption":"The set of 10 attributes for describing the aggregated ecological setting in which the coastal segments occur.","name":"ecu_methodology","status":"inherit","uploaded_to":1328382,"date":"2021-08-18 21:04:28","modified":"2021-08-19 13:25:00","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":569,"height":398,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Methodology-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Methodology.png","medium-width":373,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Methodology.png","medium_large-width":569,"medium_large-height":398,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Methodology.png","large-width":569,"large-height":398,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Methodology.png","1536x1536-width":569,"1536x1536-height":398,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Methodology.png","2048x2048-width":569,"2048x2048-height":398,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Methodology.png","card_image-width":569,"card_image-height":398,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/ECU_Methodology.png","wide_image-width":569,"wide_image-height":398}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<p>Following the attribution of the segments, they were classified by establishing class labels and associated ranges of class values for each of the 10 variables. Where possible, the class labels and class value ranges were consistent with the CMECS nomenclature and breakpoints. The classification step resulted in the development of CSU\u2019s defined as any segment with a unique set of class labels for the 10 attributes.<\/p>\n<p>These ECU data are made available in <a href=\"https:\/\/livingatlas.arcgis.com\/\">ArcGIS Living Atlas of the World<\/a> as an online feature layer representing the 1km shoreline segments as well as an ArcGIS Pro Package that can be downloaded and used in desktop visualization and analysis.<\/p>\n<ul>\n<li><a href=\"https:\/\/www.arcgis.com\/home\/item.html?id=54df078334954c5ea6d5e1c34eda2c87\">Ecological Coastal Units (ECUs) &#8211; feature Layer<\/a><\/li>\n<li><a href=\"https:\/\/www.arcgis.com\/home\/item.html?id=b3920b9e386945f2942e72e38f9142fe\">Ecological Coastal Units (ECUs) &#8211; ArcGIS Pro Package<\/a><\/li>\n<\/ul>\n<p>Additional Resources:<\/p>\n<ul>\n<li><a href=\"https:\/\/pubs.er.usgs.gov\/publication\/70222519\">Earth\u2019s Coastlines Book Chapter<\/a><\/li>\n<li><a href=\"https:\/\/vimeo.com\/548977949\">Animation showing ECU coverage and classification<\/a><\/li>\n<\/ul>\n<p>Please contact <a href=\"https:\/\/www.usgs.gov\/staff-profiles\/roger-sayre\">Roger Sayre<\/a> and\/or <a href=\"mailto:kvangraafeiland@esri.com\">Keith VanGraafeiland<\/a> for more information.<\/p>\n"}],"authors":[{"ID":6701,"user_firstname":"Keith","user_lastname":"VanGraafeiland","nickname":"Keith VanGraafeiland","user_nicename":"kvangraafeiland","display_name":"Keith VanGraafeiland","user_email":"KVanGraafeiland@esri.com","user_url":"https:\/\/oceans-esrioceans.hub.arcgis.com\/","user_registered":"2018-03-02 00:18:44","user_description":"Keith VanGraafeiland is a Senior Principal GIS Engineer at Esri and Ocean Content Lead for the ArcGIS Living Atlas of the World. With over 18 years of experience, Keith specializes in marine and environmental GIS, remote sensing, and advanced data science. Keith\u2019s work bridges oceanography and data science, using machine learning and analytics to turn complex data into actionable insights for the GIS community.","user_avatar":"<img data-del=\"avatar\" src='https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2026\/02\/KeithVanGraafeiland-7-465x465.jpg' class='avatar pp-user-avatar avatar-96 photo ' height='96' width='96'\/>"}],"related_articles":[{"ID":75611,"post_author":"5541","post_date":"2017-02-15 17:18:55","post_date_gmt":"2017-02-15 17:18:55","post_content":"","post_title":"Animating EMUs with ArcGIS Pro!","post_excerpt":"","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"animating-emus-with-arcgis-pro","to_ping":"","pinged":"","post_modified":"2018-03-26 21:12:02","post_modified_gmt":"2018-03-26 21:12:02","post_content_filtered":"","post_parent":0,"guid":"http:\/\/www.esri.com\/arcgis-blog\/products\/product\/uncategorized\/animating-emus-with-arcgis-pro\/","menu_order":0,"post_type":"blog","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":715392,"post_author":"7841","post_date":"2020-02-04 08:06:02","post_date_gmt":"2020-02-04 16:06:02","post_content":"","post_title":"A New Map of World Terrestrial Ecosystems","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"world-ecosystems","to_ping":"","pinged":"","post_modified":"2020-08-27 16:00:21","post_modified_gmt":"2020-08-27 23:00:21","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&#038;p=715392","menu_order":0,"post_type":"blog","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":874951,"post_author":"6701","post_date":"2020-06-03 21:20:33","post_date_gmt":"2020-06-04 04:20:33","post_content":"","post_title":"Coastal Flooding - rising seas, more flooding","post_excerpt":"","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"coastal-flooding-rising-seas-more-flooding","to_ping":"","pinged":"","post_modified":"2020-06-05 06:45:36","post_modified_gmt":"2020-06-05 13:45:36","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&#038;p=874951","menu_order":0,"post_type":"blog","post_mime_type":"","comment_count":"1","filter":"raw"}],"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/Cliffs_of_Dover_Card.png","wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/08\/Cliffs_of_Dover_Banner.png"},"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>Ecological Coastal Units (ECUs) Available<\/title>\n<meta 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