NLCD (Ulusal Arazi Örtüsü Veritabanı), 8 döneme (2001, 2004, 2006, 2008, 2011, 2013, 2016 ve 2019) yayılan, Landsat tabanlı 30 metrelik bir arazi örtüsü veritabanıdır. 2021 için dokuzuncu bir dönem de burada mevcuttur. Görüntüler, kentsel alan için geçirimsizlik veri katmanına dayanır.
ABD Yerbilimsel Araştırma Kurumu (USGS), çeşitli federal kurumlarla ortaklaşa çalışarak şu ana kadar yedi Ulusal Arazi Örtüsü Veritabanı (NLCD) ürünü geliştirdi ve yayınladı: NLCD 1992, 2001, 2006, 2011, 2016, 2019 ve 2021. 2016 sürümünden itibaren, arazi örtüsü ürünleri iki ila üç yıllık aralıklarla oluşturuldu.
[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) |"]]
