{"id":1951552,"date":"2023-06-05T12:32:03","date_gmt":"2023-06-05T19:32:03","guid":{"rendered":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&p=1951552"},"modified":"2023-06-06T03:36:43","modified_gmt":"2023-06-06T10:36:43","slug":"understanding-global-water-quality-trends","status":"publish","type":"blog","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends","title":{"rendered":"Understanding global water quality trends"},"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":[23341,22771],"tags":[770392,30501,302192,208422,32781],"industry":[],"product":[36551,36561],"class_list":["post-1951552","blog","type-blog","status-publish","format-standard","hentry","category-analytics","category-natural-resources","tag-bloom","tag-coastal","tag-marine","tag-ocean","tag-water-quality","product-arcgis-online","product-arcgis-pro"],"acf":{"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":""},{"ID":7011,"user_firstname":"Raluca","user_lastname":"Nicola","nickname":"Raluca Nicola","user_nicename":"raluca_zurich","display_name":"Raluca Nicola","user_email":"RNicola@esri.com","user_url":"https:\/\/raluca-nicola.net\/","user_registered":"2018-03-02 00:19:07","user_description":"Raluca works as a web cartographer with the Geo Experience Center team at Esri. She loves to play around with web technologies and visualization styles. If she's not in front of the computer, she's probably somewhere up in the mountains.","user_avatar":""},{"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":""}],"short_description":"Eutrophication is driven by enrichment of waters by nutrients resulting in adverse changes in the balance of organisms and water quality.","flexible_content":[{"acf_fc_layout":"content","content":"

Humans have a profound impact on the environment.\u00a0 By better understanding our impacts we allow the opportunity to change and protect or natural resources.\u00a0 The Coastal Eutrophication App<\/a> was built to map and show trends in water quality for all countries of the world.\u00a0 In providing this information countries have foundational resources to understand hot spots (repetitive anomalies) implement a water quality monitoring plan and begin to determine sources of potential pollution.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1952372,"id":1952372,"title":"Human impacts on water quality.","filename":"Human_Impacts.png","filesize":5816856,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Human_Impacts.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends\/human_impacts","alt":"Human impacts on water quality.","author":"6701","description":"","caption":"Human impacts on water quality.","name":"human_impacts","status":"inherit","uploaded_to":1951552,"date":"2023-06-05 19:10:18","modified":"2023-06-05 19:21:55","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":3830,"height":864,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Human_Impacts-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Human_Impacts.png","medium-width":464,"medium-height":105,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Human_Impacts.png","medium_large-width":768,"medium_large-height":173,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Human_Impacts.png","large-width":1920,"large-height":433,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Human_Impacts-1536x347.png","1536x1536-width":1536,"1536x1536-height":347,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Human_Impacts-2048x462.png","2048x2048-width":2048,"2048x2048-height":462,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Human_Impacts-826x186.png","card_image-width":826,"card_image-height":186,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Human_Impacts-1920x433.png","wide_image-width":1920,"wide_image-height":433}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

Eutrophication is a process driven by enrichment of waters by nutrients, especially compounds of nitrogen or phosphorus, leading to increased growth, primary production, and biomass of algae resulting in adverse changes in the balance of organisms and water quality.<\/p>\n

This work was done in support of Sustainable Development Goal (SDG) 14.1 \u2013 \u201cLife Below Water\u201d.\u00a0 A collaborative team including scientist from the National Ocean and Atmospheric Association (NOAA), Plymouth Marine Laboratory (PML), United Nations Environment Programe and Esri led by GEO Blue Planet have been working and reporting results for SDG 14.1.1.a for the past 4 years that are accessible here<\/a>.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1952462,"id":1952462,"title":"Sustainable Development Goal 14.1.1a team.","filename":"Team_Logo_02.png","filesize":171833,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Team_Logo_02.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends\/team_logo_02","alt":"Sustainable Development Goal 14.1.1a team.","author":"6701","description":"","caption":"Sustainable Development Goal 14.1.1a team.","name":"team_logo_02","status":"inherit","uploaded_to":1951552,"date":"2023-06-05 19:24:45","modified":"2023-06-05 19:25:37","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":1920,"height":700,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Team_Logo_02-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Team_Logo_02.png","medium-width":464,"medium-height":169,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Team_Logo_02.png","medium_large-width":768,"medium_large-height":280,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Team_Logo_02.png","large-width":1920,"large-height":700,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Team_Logo_02-1536x560.png","1536x1536-width":1536,"1536x1536-height":560,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Team_Logo_02.png","2048x2048-width":1920,"2048x2048-height":700,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Team_Logo_02-826x301.png","card_image-width":826,"card_image-height":301,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/Team_Logo_02.png","wide_image-width":1920,"wide_image-height":700}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

The Coastal Eutrophication App<\/a> supplements the data by providing an interface for spatial exploration and sharing. The URL is \u201csmart\u201d and allows users to share their current view of interest with others that might be interested in looking at the same phenomena in the app.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1952402,"id":1952402,"title":"Coastal Eutrophication app showing water quality trend over time.","filename":"App_01-1.png","filesize":2135736,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_01-1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends\/app_01-2","alt":"Coastal Eutrophication app showing water quality trend over time.","author":"6701","description":"","caption":"Coastal Eutrophication app showing water quality trend over time. ","name":"app_01-2","status":"inherit","uploaded_to":1951552,"date":"2023-06-05 19:13:13","modified":"2023-06-05 19:21:02","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":1920,"height":1080,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_01-1-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_01-1.png","medium-width":464,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_01-1.png","medium_large-width":768,"medium_large-height":432,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_01-1.png","large-width":1920,"large-height":1080,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_01-1-1536x864.png","1536x1536-width":1536,"1536x1536-height":864,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_01-1.png","2048x2048-width":1920,"2048x2048-height":1080,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_01-1-826x465.png","card_image-width":826,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_01-1.png","wide_image-width":1920,"wide_image-height":1080}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"image","image":{"ID":1952392,"id":1952392,"title":"Coastal Eutrophication app showing comparison to other countries in the region.","filename":"App_02.png","filesize":2699733,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_02.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends\/app_02","alt":"Coastal Eutrophication app showing comparison to other countries in the region.","author":"6701","description":"","caption":"Coastal Eutrophication app showing comparison to other countries in the region.","name":"app_02","status":"inherit","uploaded_to":1951552,"date":"2023-06-05 19:12:44","modified":"2023-06-05 19:20:38","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":1920,"height":1080,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_02-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_02.png","medium-width":464,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_02.png","medium_large-width":768,"medium_large-height":432,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_02.png","large-width":1920,"large-height":1080,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_02-1536x864.png","1536x1536-width":1536,"1536x1536-height":864,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_02.png","2048x2048-width":1920,"2048x2048-height":1080,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_02-826x465.png","card_image-width":826,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/App_02.png","wide_image-width":1920,"wide_image-height":1080}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

This Story Map<\/a> explains the methodology that was used to preform the spatial analysis and walks you through how the pixel-based analysis was turned into monthly reporting results.\u00a0 Special thanks to the talented Raluca Nicola for helping aggregate the data and building the web application and to John Nelson for UI\/UX support.<\/p>\n

For more info see the chlorophyll-hub<\/a>.<\/p>\n"}],"related_articles":[{"ID":1941832,"post_author":"6701","post_date":"2023-06-02 06:20:52","post_date_gmt":"2023-06-02 13:20:52","post_content":"","post_title":"How old is the seafloor?","post_excerpt":"","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"how-old-is-the-seafloor","to_ping":"","pinged":"","post_modified":"2024-06-11 08:34:03","post_modified_gmt":"2024-06-11 15:34:03","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&p=1941832","menu_order":0,"post_type":"blog","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":1949872,"post_author":"6701","post_date":"2023-06-02 12:24:23","post_date_gmt":"2023-06-02 19:24:23","post_content":"","post_title":"Warmest ocean ever","post_excerpt":"","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"warmest-ocean-ever","to_ping":"","pinged":"","post_modified":"2023-06-02 17:58:56","post_modified_gmt":"2023-06-03 00:58:56","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&p=1949872","menu_order":0,"post_type":"blog","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":1779962,"post_author":"6971","post_date":"2022-11-29 13:16:14","post_date_gmt":"2022-11-29 21:16:14","post_content":"","post_title":"Sea Change","post_excerpt":"","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"three-years-of-improvements-to-the-mapping-of-undersea-terrain-bathymetry-getting-better-and-more-detailed","to_ping":"","pinged":"","post_modified":"2022-11-29 13:16:14","post_modified_gmt":"2022-11-29 21:16:14","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&p=1779962","menu_order":0,"post_type":"blog","post_mime_type":"","comment_count":"0","filter":"raw"}],"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/BalticCyanobacteria_Card.png","wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/BalticCyanobacteria_Banner.png"},"yoast_head":"\nUnderstanding global water quality trends<\/title>\n<meta name=\"description\" content=\""Understanding precedes action" - use this information to help improve your countries water quality.\" \/>\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-online\/natural-resources\/understanding-global-water-quality-trends\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Understanding global water quality trends\" \/>\n<meta property=\"og:description\" content=\""Understanding precedes action" - use this information to help improve your countries water quality.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends\" \/>\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=\"2023-06-06T10:36:43+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-online\/natural-resources\/understanding-global-water-quality-trends#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends\"},\"author\":{\"name\":\"Keith VanGraafeiland\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/person\/cb897ca2092a5340ecf510927dd0da61\"},\"headline\":\"Understanding global water quality trends\",\"datePublished\":\"2023-06-05T19:32:03+00:00\",\"dateModified\":\"2023-06-06T10:36:43+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends\"},\"wordCount\":5,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#organization\"},\"keywords\":[\"Bloom\",\"coastal\",\"Marine\",\"ocean\",\"water quality\"],\"articleSection\":[\"Analytics\",\"Natural Resources\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends\",\"url\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends\",\"name\":\"Understanding global water quality trends\",\"isPartOf\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#website\"},\"datePublished\":\"2023-06-05T19:32:03+00:00\",\"dateModified\":\"2023-06-06T10:36:43+00:00\",\"description\":\"\\\"Understanding precedes action\\\" - use this information to help improve your countries water quality.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.esri.com\/arcgis-blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Understanding global water quality trends\"}]},{\"@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\/cb897ca2092a5340ecf510927dd0da61\",\"name\":\"Keith VanGraafeiland\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2026\/02\/KeithVanGraafeiland-7-465x465.jpg\",\"contentUrl\":\"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2026\/02\/KeithVanGraafeiland-7-465x465.jpg\",\"caption\":\"Keith VanGraafeiland\"},\"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.\",\"sameAs\":[\"https:\/\/oceans-esrioceans.hub.arcgis.com\/\",\"https:\/\/www.linkedin.com\/in\/keithvangraafeiland\/\",\"https:\/\/x.com\/LivingAtlas\"],\"url\":\"https:\/\/www.esri.com\/arcgis-blog\/author\/kvangraafeiland\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Understanding global water quality trends","description":"\"Understanding precedes action\" - use this information to help improve your countries water quality.","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-online\/natural-resources\/understanding-global-water-quality-trends","og_locale":"en_US","og_type":"article","og_title":"Understanding global water quality trends","og_description":"\"Understanding precedes action\" - use this information to help improve your countries water quality.","og_url":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends","og_site_name":"ArcGIS Blog","article_publisher":"https:\/\/www.facebook.com\/esrigis\/","article_modified_time":"2023-06-06T10:36:43+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-online\/natural-resources\/understanding-global-water-quality-trends#article","isPartOf":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends"},"author":{"name":"Keith VanGraafeiland","@id":"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/person\/cb897ca2092a5340ecf510927dd0da61"},"headline":"Understanding global water quality trends","datePublished":"2023-06-05T19:32:03+00:00","dateModified":"2023-06-06T10:36:43+00:00","mainEntityOfPage":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends"},"wordCount":5,"commentCount":0,"publisher":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/#organization"},"keywords":["Bloom","coastal","Marine","ocean","water quality"],"articleSection":["Analytics","Natural Resources"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends","url":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends","name":"Understanding global water quality trends","isPartOf":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/#website"},"datePublished":"2023-06-05T19:32:03+00:00","dateModified":"2023-06-06T10:36:43+00:00","description":"\"Understanding precedes action\" - use this information to help improve your countries water quality.","breadcrumb":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.esri.com\/arcgis-blog\/"},{"@type":"ListItem","position":2,"name":"Understanding global water quality trends"}]},{"@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\/cb897ca2092a5340ecf510927dd0da61","name":"Keith VanGraafeiland","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/person\/image\/","url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2026\/02\/KeithVanGraafeiland-7-465x465.jpg","contentUrl":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2026\/02\/KeithVanGraafeiland-7-465x465.jpg","caption":"Keith VanGraafeiland"},"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.","sameAs":["https:\/\/oceans-esrioceans.hub.arcgis.com\/","https:\/\/www.linkedin.com\/in\/keithvangraafeiland\/","https:\/\/x.com\/LivingAtlas"],"url":"https:\/\/www.esri.com\/arcgis-blog\/author\/kvangraafeiland"}]}},"text_date":"June 5, 2023","author_name":"Multiple Authors","author_page":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/natural-resources\/understanding-global-water-quality-trends","custom_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2023\/06\/BalticCyanobacteria_Banner.png","primary_product":"ArcGIS Online","tag_data":[{"term_id":770392,"name":"Bloom","slug":"bloom","term_group":0,"term_taxonomy_id":770392,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":30501,"name":"coastal","slug":"coastal","term_group":0,"term_taxonomy_id":30501,"taxonomy":"post_tag","description":"","parent":0,"count":8,"filter":"raw"},{"term_id":302192,"name":"Marine","slug":"marine","term_group":0,"term_taxonomy_id":302192,"taxonomy":"post_tag","description":"","parent":0,"count":9,"filter":"raw"},{"term_id":208422,"name":"ocean","slug":"ocean","term_group":0,"term_taxonomy_id":208422,"taxonomy":"post_tag","description":"","parent":0,"count":13,"filter":"raw"},{"term_id":32781,"name":"water quality","slug":"water-quality","term_group":0,"term_taxonomy_id":32781,"taxonomy":"post_tag","description":"","parent":0,"count":5,"filter":"raw"}],"category_data":[{"term_id":23341,"name":"Analytics","slug":"analytics","term_group":0,"term_taxonomy_id":23341,"taxonomy":"category","description":"","parent":0,"count":1329,"filter":"raw"},{"term_id":22771,"name":"Natural Resources","slug":"natural-resources","term_group":0,"term_taxonomy_id":22771,"taxonomy":"category","description":"","parent":0,"count":262,"filter":"raw"}],"product_data":[{"term_id":36551,"name":"ArcGIS Online","slug":"arcgis-online","term_group":0,"term_taxonomy_id":36551,"taxonomy":"product","description":"","parent":0,"count":2427,"filter":"raw"},{"term_id":36561,"name":"ArcGIS Pro","slug":"arcgis-pro","term_group":0,"term_taxonomy_id":36561,"taxonomy":"product","description":"","parent":0,"count":2037,"filter":"raw"}],"primary_product_link":"https:\/\/www.esri.com\/arcgis-blog\/?s=#&products=arcgis-online","_links":{"self":[{"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/blog\/1951552","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\/6701"}],"replies":[{"embeddable":true,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/comments?post=1951552"}],"version-history":[{"count":0,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/blog\/1951552\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/media?parent=1951552"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/categories?post=1951552"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/tags?post=1951552"},{"taxonomy":"industry","embeddable":true,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/industry?post=1951552"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/product?post=1951552"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}