{"id":658392,"date":"2024-04-02T19:59:06","date_gmt":"2024-04-03T02:59:06","guid":{"rendered":"https:\/\/www.esri.com\/about\/newsroom\/?post_type=arcnews&#038;p=658392"},"modified":"2024-05-08T11:34:49","modified_gmt":"2024-05-08T18:34:49","slug":"landsat-explorer-traversing-time-and-geography-with-remote-sensing","status":"publish","type":"arcnews","link":"https:\/\/www.esri.com\/about\/newsroom\/arcnews\/landsat-explorer-traversing-time-and-geography-with-remote-sensing","title":{"rendered":"Landsat Explorer: Traversing Time and Geography with Remote Sensing"},"author":5752,"featured_media":0,"menu_order":0,"template":"","format":"standard","meta":{"_acf_changed":false,"sync_status":"","episode_type":"","audio_file":"","castos_file_data":"","podmotor_file_id":"","cover_image":"","cover_image_id":"","duration":"","filesize":"","filesize_raw":"","date_recorded":"","explicit":"","block":"","itunes_episode_number":"","itunes_title":"","itunes_season_number":"","itunes_episode_type":"","_links_to":"","_links_to_target":""},"categories":[275822,551,325382],"tags":[485992,266512,277852,485552,396372],"arcnews_issues":[488602],"class_list":["post-658392","arcnews","type-arcnews","status-publish","format-standard","hentry","category-arcgis-living-atlas-of-the-world","category-imagery","category-remote-sensing","tag-imagery-and-remote-sensing","tag-landsat","tag-multispectral-imagery","tag-ndvi","tag-satellite-imagery","arcnews_issues-spring-2024","arcnews_sections-esri-technology"],"acf":{"short_description":"The Landsat Explorer app in ArcGIS Living Atlas of the World provides an easy way for users to access and interpret Landsat satellite data.","pdf":{"host_remotely":false,"file":"","file_url":""},"flexible_content":[{"acf_fc_layout":"content","content":"Picture a world where the hidden becomes visible and our planet\u2019s unseen layers are revealed in a new light. This is the world that scientists began to explore in the mid-20th century, transcending human vision to uncover Earth\u2019s secret patterns and phenomena. From physicists to agricultural scientists, these pioneers ventured into the realm of new wavelengths, opening a window to a previously invisible world. Their quest for deeper understanding of landscape features led to the Landsat satellite program, an initiative that transformed our view of Earth from space."},{"acf_fc_layout":"image","image":658432,"image_position":"right","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<h2>The Multispectral Imagery Revolution<\/h2>\r\nMultispectral imaging, a key tool for the Landsat program, marked a leap in how we observe our planet. It captures data in wavelengths that are beyond the narrow band of light that humans can see, revealing aspects and details of the earth\u2019s surface that are not observable in true-color photographs. This can provide unique perspectives for different features such as vegetation, soil, and water.\r\n\r\n\u201cWith multispectral data, we can see the glow of photosynthetic activity of vegetation in the Amazon rainforest, examine crop health in southeast Asia agricultural areas, explore wildfire scars in Africa, and measure the retreat of Arctic glaciers,\u201d said Kate Fickas, Esri\u2019s director of <a href=\"https:\/\/www.esri.com\/en-us\/capabilities\/imagery-remote-sensing\/overview\">imagery and remote sensing solutions<\/a>.\r\n\r\nThe Landsat satellites and their multispectral sensors have become key observers of our planet. Since its first satellite launched in 1972, Landsat has recorded the earth\u2019s surface, creating a legacy of data. More than five decades later and with the 2021 launch of the Landsat 9 Earth observation satellite, Landsat is more than just a satellite program\u2014it\u2019s a storyteller, a record keeper, and a guide to understanding our rapidly changing world. Jointly managed by the US Geological Survey and the National Aeronautics and Space Administration, Landsat\u2019s longevity and consistency have made it the gold standard in optical imagery and remote sensing."},{"acf_fc_layout":"content","content":"<h2>Unlocking Global Imagery for Everyone<\/h2>\r\nHistorically, the Landsat program has presented a few challenges. The first is the sheer volume of data, collected for more than 50 years. The second is the complexity of the spectral data. Despite advances in imagery and remote sensing data accessibility in the past decade, these challenges remain, especially for those who are unfamiliar with this type of data or who want a quick and easy way to explore Landsat resources.\r\n\r\nTo increase Landsat data accessibility, Esri developed the <a href=\"https:\/\/livingatlas.arcgis.com\/landsatexplorer\/?rsource=https%3A%2F%2Flinks.esri.com%2Flsa#mapCenter=89.080%2C21.909%2C11.557&amp;mode=dynamic&amp;mainScene=%7CShort-wave+Infrared+with+DRA%7C\">Landsat Explorer app<\/a> in ArcGIS Living Atlas of the World. It enables users, regardless of expertise, to easily explore Landsat data. From urban expansion to the shrinking of lakes, the app makes the complex world of Landsat data accessible and captivating."},{"acf_fc_layout":"image","image":658442,"image_position":"left","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"ArcGIS Living Atlas is now an entry point for exploring Landsat data. More than just a collection of maps and data, it\u2019s a dynamic gateway to accessible and empowering geospatial insights. This digital atlas holds a diverse range of data layers, maps, and apps, enabling users to better understand the world through GIS. According to Fickas, \u201cIt\u2019s an evolving resource that simplifies the discovery and application of geographic information\u2014something that\u2019s critical in a time when geographic insights are needed for informed decision-making.\u201d\r\n\r\nLandsat Level-2 data from as early as 1982 is a dynamic time series of imagery available across the ArcGIS system and used to power Landsat Explorer. With an intuitive user experience, the app leverages ArcGIS capabilities to unlock and explore a wealth of Landsat information.\r\n\r\nThis integration of traditional GIS with Landsat imagery offers a rich and dynamic understanding of our planet and location intelligence. GIS provides precise spatial information while imagery adds contextual depth, providing a holistic view that is greater than the sum of its parts. For GIS beginners and experts alike, Landsat Explorer can spark curiosity and provide comprehensive answers to complex spatial questions."},{"acf_fc_layout":"sidebar","layout":"standard","image_reference":null,"image_reference_figure":"","spotlight_image":null,"section_title":"","spotlight_name":"","position":"Center","content":"<h2>Reveal Answers with Ease: Landsat Explorer Features and Capabilities<\/h2>\r\n<em>Curious about how our planet\u2019s landscapes have transformed over the years?<\/em> The Landsat Explorer app\u2019s dynamic global mosaic lets users visually traverse the earth\u2019s surface through the best available scenes.\r\n\r\n<em>Wondering which combination of spectral bands can reveal the hidden health of forests or agricultural land?<\/em> Use the app\u2019s on-the-fly renderer of prebuilt multispectral band combinations and spectral indexes, such as the normalized difference vegetation index (NDVI), for quick visual analysis.\r\n\r\n<em>Want to know how many Landsat scenes are available with minimal cloud cover for specific dates?<\/em> The interactive Find a Scene feature allows users to filter images by location, sensor, time, and cloud cover. Use the Swipe and Animation modes to choose which images and dates to compare, and then dynamically observe changes over time.\r\n\r\n<em>Trying to find which year a forest fire occurred?<\/em> Use the Analysis mode to view a chart of monthly, per-pixel trends in spectral indexes over the past four decades to examine and capture spectral changes.\r\n\r\nThese features can unlock a new world of possibilities, providing a valuable toolkit for informed planning and environmental stewardship.","snippet":""}],"references":null},"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>Landsat Explorer: Traversing Time and Geography with Remote Sensing | Spring 2024 | ArcNews<\/title>\n<meta name=\"description\" content=\"The Landsat Explorer app in ArcGIS Living Atlas of the World provides an easy way for users to access and interpret Landsat satellite data.\" \/>\n<meta name=\"robots\" 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