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schwehr/USGS_NLCD_RELEASES_2020_REL_NALCMS.json

Created June 12, 2023 23:42
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USGS_NLCD_RELEASES_2020_REL_NALCMS.json
{
"description": "The 2020 North American Land Cover 30-meter dataset was produced as part of\nthe North American Land Change Monitoring System (NALCMS), a trilateral\neffort between Natural Resources Canada, the United States Geological\nSurvey, and three Mexican organizations including the National Institute of\nStatistics and Geography (Instituto Nacional de Estadística y\nGeografía),\nNational Commission for the Knowledge and Use of the Biodiversity\n(Comisión\nNacional Para el Conocimiento y Uso de la Biodiversidad), and the National\nForestry Commission of Mexico (Comisión Nacional Forestal). The\ncollaboration is facilitated by the Commission for Environmental\nCooperation, an international organization created by the Canada, Mexico,\nand United States governments under the North American Agreement on\nEnvironmental Cooperation to promote environmental collaboration between the\nthree countries.\n\nThe general objective of NALCMS is to devise, through collective effort, a\nharmonized multi-scale land cover monitoring approach which ensures high\naccuracy and consistency in monitoring land cover changes at the North\nAmerican scale and which meets each country's specific requirements.\n\nThis 30-meter dataset of North American Land Cover reflects land cover\ninformation for 2020 from Mexico and Canada, 2019 over the conterminous\nUnited States and 2021 over Alaska. Each country developed its own\nclassification method to identify Land Cover classes and then provided an\ninput layer to produce a continental Land Cover map across North America.\nCanada, Mexico, and the United States developed their own 30-meter land\ncover products; see specific sections on data generation below.\n\nThe main inputs for image classification were 30-meter Landsat 8 Collection\n2 Level 1 data in the three countries (Canada, the United States and\nMexico). Image selection processes and reduction to specific spectral bands\nvaried among the countries due to study-site-specific requirements. While\nCanada selected most images from the year 2020 with a few from 2019 and\n2021, the Conterminous United States employed mainly images from 2019, while\nAlaska land cover maps are mainly based on the use of images from 2021. The\nland cover map for Mexico was based on land cover change detection between\n2015 and 2020 Mexico Landsat 8 mosaics.\n\nIn order to generate a seamless and consistent land cover map of North\nAmerica, national maps were generated for Canada by the CCRS; for Mexico by\nCONABIO, INEGI, and CONAFOR; and for the United States by the USGS. Each\ncountry chose their own approaches, ancillary data, and land cover mapping\nmethodologies to create national datasets. This North America dataset was\nproduced by combining the national land cover datasets. The integration of\nthe three national products merged four Land Cover map sections, Alaska,\nCanada, the conterminous United States and Mexico.\n\nSee also:\n\n* Natural Resources Canada has North American Land Cover information\n available online at\n [https://open.canada.ca/data/en/dataset/ee1580ab-a23d-4f86-a09b-79763677eb47](\n https://open.canada.ca/data/en/dataset/ee1580ab-a23d-4f86-a09b-79763677eb47)\n\n* The National Commission for the Knowledge and Use of Biodiversity has\n North American Land Cover information available online at\n [https://www.biodiversidad.gob.mx/monitoreo/cobertura-suelo](\n https://www.biodiversidad.gob.mx/monitoreo/cobertura-suelo)\n\n* The U.S. Geological Survey has North American Land Cover information\n available online at [www.mrlc.gov](https://www.mrlc.gov)\n",
"extent": {
"spatial": {
"bbox": [
[
-175,
14,
-50,
84
]
]
},
"temporal": {
"interval": [
[
"2019-01-01T00:00:00Z",
"2021-12-31T00:00:00Z"
]
]
}
},
"gee:interval": {
"interval": 1,
"type": "cadence",
"unit": "year"
},
"gee:skip_indexing": true,
"gee:terms_of_use": "[CC0-1.0](https://spdx.org/licenses/CC0-1.0.html)\n\nThis work was authored as part of the Contributor's official duties as an\nEmployee of the United States Government and is therefore a work of the\nUnited States Government. In accordance with 17 U.S.C. 105, no copyright\nprotection is available for such works under U.S. Law. This is an Open\nAccess article that has been identified as being free of known restrictions\nunder copyright law, including all related and neighboring rights\n[https://creativecommons.org/publicdomain/mark/1.0/](\n https://creativecommons.org/publicdomain/mark/1.0/).\nYou can copy, modify, distribute and perform the work, even for commercial\npurposes, all without asking permission.\n",
"gee:type": "image",
"gee:user_uploaded": true,
"id": "USGS/NLCD_RELEASES/2020_REL/NALCMS",
"keywords": [
"landcover",
"landsat",
"nlcd",
"reflectance"
],
"license": "CC0-1.0",
"links": [
{
"href": "https://storage.googleapis.com/earthengine-stac/catalog/USGS/USGS_NLCD_RELEASES_2020_REL_NALCMS.json",
"rel": "self",
"type": "application/json"
},
{
"href": "https://storage.googleapis.com/earthengine-stac/catalog/USGS/catalog.json",
"rel": "parent",
"type": "application/json"
},
{
"href": "https://storage.googleapis.com/earthengine-stac/catalog/catalog.json",
"rel": "root",
"type": "application/json"
},
{
"code": "JavaScript",
"href": "https://code.earthengine.google.com/?scriptPath=Examples:Datasets/USGS/USGS_NLCD_RELEASES_2020_REL_NALCMS",
"rel": "related",
"title": "Run the example for USGS/NLCD_RELEASES/2020_REL/NALCMS in the Earth Engine Code Editor",
"type": "text/html"
},
{
"href": "https://developers.google.com/earth-engine/datasets/images/USGS/USGS_NLCD_RELEASES_2020_REL_NALCMS_sample.png",
"rel": "preview",
"type": "image/png"
},
{
"href": "https://developers.google.com/earth-engine/datasets/catalog/USGS_NLCD_RELEASES_2020_REL_NALCMS#terms-of-use",
"rel": "license",
"type": "text/html"
}
],
"providers": [
{
"name": "The Commission for Environmental Cooperation (CEC)",
"roles": [
"licensor",
"producer"
],
"url": "http://www.cec.org/"
},
{
"name": "Google Earth Engine",
"roles": [
"host"
],
"url": "https://developers.google.com/earth-engine/datasets/catalog/USGS_NLCD_RELEASES_2020_REL_NALCMS"
}
],
"sci:citation": "North American Land Change Monitoring System download webpage.\n[www.cec.org/north-american-land-change-monitoring-system](\n http://www.cec.org/north-american-land-change-monitoring-system/)\n",
"stac_extensions": [
"https://stac-extensions.github.io/eo/v1.0.0/schema.json",
"https://stac-extensions.github.io/scientific/v1.0.0/schema.json",
"https://stac-extensions.github.io/version/v1.0.0/schema.json"
],
"stac_version": "1.0.0",
"summaries": {
"eo:bands": [
{
"description": "Land cover classification grid cell value. Values are categorized into\nthe following. [Product Legend](\n https://www.mrlc.gov/sites/default/files/inline-images/2005_nalcms_large_0.jpg).\nThe classes in the 2020 product legend are given below.\n",
"gee:classes": [
{
"color": "033e00",
"description": "Temperate or sub-polar needleleaf forest. Forests generally taller\nthan three meters and more than 20 percent of total vegetation\ncover. This type occurs across the northern United States, Canada,\nand mountainous zones of Mexico. The tree crown cover contains at\nleast 75 percent of needleleaved species.\n",
"value": 1
},
{
"color": "939b71",
"description": "Sub-polar taiga needleleaf forest. Forest and woodlands with trees\ngenerally taller than three meters and more than 5 percent of\ntotal vegetation cover with shrubs and lichens commonly present in\nthe understory. The tree crown cover contains at least 75 percent\nof needleleaved species. This type occurs across Alaska and\nnorthern Canada and may consist of treed muskeg or\nwetlands. Forest canopies are variable and often sparse, with\ngenerally greater tree cover in the southern latitude parts of the\nzone than the north.\n",
"value": 2
},
{
"color": "196d12",
"description": "Tropical or sub-tropical broadleaf evergreen forest. Forests\ngenerally taller than five meters and more than 20 percent of\ntotal vegetation cover. These occur in the southern United States\nand Mexico. These forests have greater than 75 percent of tree\ncrown cover represented by evergreen species.\n",
"value": 3
},
{
"color": "1fab01",
"description": "Tropical or sub-tropical broadleaf deciduous forest. Forests\ngenerally taller than five meters and more than 20 percent of\ntotal vegetation cover. These occur in the southern United States\nand Mexico. These forests have greater than 75 percent of tree\ncrown cover represented by deciduous species.\n",
"value": 4
},
{
"color": "5b725c",
"description": "Temperate or sub-polar broadleaf deciduous forest. Forests\ngenerally taller than three meters and more than 20 percent of\ntotal vegetation cover. These occur in the northern United States,\nCanada and mountainous zones of Mexico. These forests have\ngreater than 75 percent of tree crown cover represented by\ndeciduous species.\n",
"value": 5
},
{
"color": "6b7d2c",
"description": "Mixed forest. Forests generally taller than three meters and more\nthan 20 percent of total vegetation cover. Neither needleleaf nor\nbroadleaf tree species occupy more than 75 percent of total tree\ncover but are co-dominant.\n",
"value": 6
},
{
"color": "b29d29",
"description": "Tropical or sub-tropical shrubland. Areas dominated by woody\nperennial plants with persistent woody stems less than five meters\ntall and typically greater than 20 percent of total\nvegetation. This class occurs across the southern United States\nand Mexico.\n",
"value": 7
},
{
"color": "b48833",
"description": "Temperate or sub-polar shrubland. Areas dominated by woody\nperennial plants with persistent woody stems less than three\nmeters tall and typically greater than 20 percent of total\nvegetation. This class occurs across the northern United States,\nCanada and highlands of Mexico.\n",
"value": 8
},
{
"color": "e9da5d",
"description": "Tropical or sub-tropical grassland. Areas dominated by graminoid\nor herbaceous vegetation generally accounting for greater than 80\npercent of total vegetation cover. These areas are not subject to\nintensive management such as tilling but can be utilized for\ngrazing. This class occurs across the southern United States and\nMexico.\n",
"value": 9
},
{
"color": "e0cd88",
"description": "Temperate or sub-polar grassland. Areas dominated by graminoid or\nherbaceous vegetation, generally accounting for greater than 80\npercent of total vegetation cover. These areas are not subject to\nintensive management such as tilling but can be utilized for\ngrazing. This class occurs across Canada, United States and\nhighlands of Mexico.\n",
"value": 10
},
{
"color": "a07451",
"description": "Sub-polar or polar shrubland-lichen-moss. Areas dominated by dwarf\nshrubs with lichen and moss typically accounting for at least 20\npercent of total vegetation cover. This class occurs across\nnorthern Canada and Alaska.\n",
"value": 11
},
{
"color": "bad292",
"description": "Sub-polar or polar grassland-lichen-moss. Areas dominated by\ngrassland with lichen and moss typically accounting for at least\n20 percent of total vegetation cover. This class occurs across\nnorthern Canada and Alaska.\n",
"value": 12
},
{
"color": "3f8970",
"description": "Sub-polar or polar barren-lichen-moss. Areas dominated by a\nmixture of bare areas with lichen and moss that typically account\nfor at least 20 percent of total vegetation cover. This class\noccurs across northern Canada.\n",
"value": 13
},
{
"color": "6ca289",
"description": "Wetland. Areas dominated by perennial herbaceous and woody wetland\nvegetation which is influenced by the water table at or near\nsurface over extensive periods of time. This includes marshes,\nswamps, bogs, mangroves, etc., either coastal or inland where\nwater is present for a substantial period annually.\n",
"value": 14
},
{
"color": "e6ad6a",
"description": "Cropland. Areas dominated by intensively managed crops. These\nareas typically require human activities for their\nmaintenance. This includes areas used for the production of annual\ncrops, such as corn, soybeans, wheat, maize, vegetables, tobacco,\ncotton, etc.; perennial grasses for grazing; and woody crops such\nas orchards and vineyards. Crop vegetation accounts for greater\nthan 20 percent of total vegetation. This class does not represent\nnatural grasslands used for light to moderate grazing.\n",
"value": 15
},
{
"color": "a9abae",
"description": "Barren lands. Areas characterized by bare rock, gravel, sand,\nsilt, clay, or other earthen material, with little or no \"green\"\nvegetation present regardless of its inherent ability to support\nlife. Generally, vegetation accounts for less than 10 percent of\ntotal cover.\n",
"value": 16
},
{
"color": "db2126",
"description": "Urban and built-up. Areas that contain at least 30 percent or\ngreater urban constructed materials for human activities (cities,\ntowns, transportation etc.)\n",
"value": 17
},
{
"color": "4c73a1",
"description": "Water. Areas of open water, generally with less than 25 percent\ncover of non-water cover types. This class refers to areas that\nare consistently covered by water.\n",
"value": 18
},
{
"color": "fff7fe",
"description": "Snow and ice. Areas characterized by a perennial cover of ice\nand/or snow, generally greater than 25 percent of total cover.\n",
"value": 19
}
],
"name": "landcover"
}
],
"gee:visualizations": [
{
"display_name": "NALCMS Land Cover",
"image_visualization": {
"band_vis": {
"bands": [
"landcover"
],
"max": [
100
],
"min": [
0
],
"palette": [
"000000",
"f9e8b7",
"f7e3ac",
"f0dfa3",
"eedf9c",
"eada91",
"e8d687",
"e0d281",
"ddd077",
"d6cc6d",
"d3c667",
"d0c55e",
"cfc555",
"c6bd4f",
"c4ba46",
"bdb83a",
"bbb534",
"b7b02c",
"b0ad1f",
"adac17",
"aaaa0a",
"a3a700",
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"297d00",
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"297900",
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"247400",
"247000",
"29700f",
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"2d6d24",
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"366c39",
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"396a4a",
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"396774",
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"34629f",
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"2c5fb7",
"245ec4",
"1e5ed0",
"115cdd",
"005ae0",
"0057dd",
"0152d6",
"0151d0",
"014fcc",
"014ac4",
"0147bd",
"0144b8",
"0142b0",
"0141ac",
"013da7",
"013aa0",
"01399d",
"013693",
"013491",
"012f8a",
"012d85",
"012c82",
"01297a"
]
}
},
"lookat": {
"lat": 38,
"lon": -114,
"zoom": 6
}
}
],
"gsd": [
30
],
"landcover": {
"gee:estimated_range": false,
"maximum": 19,
"minimum": 1
}
},
"title": "Land Cover of North America at 30 meters, 2020",
"type": "Collection",
"version": "1"
}
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