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NLCD 2019: قاعدة بيانات الغطاء الأرضي الوطنية التابعة لدائرة المسح الجيولوجي الأمريكية، إصدار 2019
NLCD (قاعدة بيانات الغطاء الأرضي الوطنية) هي قاعدة بيانات للغطاء الأرضي تستند إلى صور Landsat بدقة 30 مترًا وتغطي 8 حقب (2001 و2004 و2006 و2008 و2011 و2013 و2016 و2019). تتوفّر أيضًا حقبة تجريبية تاسع لعام 2021. تعتمد الصور على طبقة بيانات نفاذية المياه للمناطق الحضرية … blm landcover landuse-landcover mrlc nlcd usgs -
NLCD 2021: قاعدة بيانات الغطاء الأرضي الوطني التابعة لدائرة المسح الجيولوجي الأمريكية، إصدار 2021
تعاونت هيئة المسح الجيولوجي الأمريكية (USGS) مع عدة وكالات فيدرالية لتطوير وإصدار سبعة منتجات من قاعدة بيانات الغطاء الأرضي الوطنية (NLCD): NLCD 1992 و2001 و2006 و2011 و2016 و2019 و2021. بدءًا من إصدار 2016، تم إنشاء منتجات الغطاء الأرضي لفترات تتراوح بين عامَين وثلاثة أعوام … blm landcover landuse-landcover mrlc nlcd usgs
Datasets tagged mrlc in Earth Engine
[null,null,[],[[["\u003cp\u003eThe National Land Cover Database (NLCD) provides 30-meter resolution land cover data across the United States, derived from Landsat imagery.\u003c/p\u003e\n"],["\u003cp\u003eNLCD offers data for multiple epochs, including 2001, 2004, 2006, 2008, 2011, 2013, 2016, 2019, and 2021, allowing for change detection and analysis over time.\u003c/p\u003e\n"],["\u003cp\u003eThe USGS, in collaboration with federal agencies, develops and releases the NLCD products, with recent releases focusing on shorter, two-to-three-year intervals for more frequent land cover assessments.\u003c/p\u003e\n"]]],["The USGS National Land Cover Database (NLCD) provides 30-meter land cover data from Landsat imagery. It includes nine epochs: 2001, 2004, 2006, 2008, 2011, 2013, 2016, 2019, and 2021. NLCD products have been released for seven datasets : 1992, 2001, 2006, 2011, 2016, 2019 and 2021. The 2016 release started using two-to-three-year intervals. The data, which relies on imperviousness layers for urban areas, are created in partnership with federal agencies.\n"],null,["# Datasets tagged mrlc in Earth Engine\n\n-\n\n |-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### NLCD 2019: USGS National Land Cover Database, 2019 release](/earth-engine/datasets/catalog/USGS_NLCD_RELEASES_2019_REL_NLCD) |\n | NLCD (the National Land Cover Database) is a 30-m Landsat-based land cover database spanning 8 epochs (2001, 2004, 2006, 2008, 2011, 2013, 2016, and 2019). A ninth epoch for 2021 is also available here. The images rely on the imperviousness data layer for the urban ... |\n | [blm](/earth-engine/datasets/tags/blm) [landcover](/earth-engine/datasets/tags/landcover) [landuse-landcover](/earth-engine/datasets/tags/landuse-landcover) [mrlc](/earth-engine/datasets/tags/mrlc) [nlcd](/earth-engine/datasets/tags/nlcd) [usgs](/earth-engine/datasets/tags/usgs) |\n\n-\n\n |------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### NLCD 2021: USGS National Land Cover Database, 2021 release](/earth-engine/datasets/catalog/USGS_NLCD_RELEASES_2021_REL_NLCD) |\n | The U.S. Geological Survey (USGS), in partnership with several federal agencies, has now developed and released seven National Land Cover Database (NLCD) products: NLCD 1992, 2001, 2006, 2011, 2016, 2019, and 2021. Beginning with the 2016 release, land cover products were created for two-to-three-year intervals ... |\n | [blm](/earth-engine/datasets/tags/blm) [landcover](/earth-engine/datasets/tags/landcover) [landuse-landcover](/earth-engine/datasets/tags/landuse-landcover) [mrlc](/earth-engine/datasets/tags/mrlc) [nlcd](/earth-engine/datasets/tags/nlcd) [usgs](/earth-engine/datasets/tags/usgs) |"]]