Le Bureau du géographe des États-Unis fournit l'ensemble de données LSIB (Large Scale International Boundary). La version détaillée (2013) est dérivée de deux autres ensembles de données : un fichier vectoriel de lignes LSIB et les World Vector Shorelines (WVS) de la National Geospatial-Intelligence Agency (NGA). Les limites intérieures reflètent les règles du gouvernement américain concernant les limites, les litiges frontaliers et la souveraineté. Les limites extérieures sont issues du WVS. Toutefois, les données sur le littoral du WVS sont obsolètes et généralement décalées de plusieurs centaines de mètres à plus d'un kilomètre.
Chaque entité correspond à la zone polygonale délimitée par des frontières intérieures et des côtes extérieures, le cas échéant. De nombreux pays sont constitués de plusieurs entités, une par région distincte.
Par rapport à la base de données LSIB détaillée, cet ensemble de données simplifié réduit certaines régions disjointes de chaque pays à une seule entité.
Elle exclut également les îles de taille moyenne et plus petites. Les limites simplifiées qui en résultent sont rarement décalées de plus de 100 mètres par rapport aux limites détaillées du LSIB. Chacune des 312 entités fait partie de la géométrie de l'un des 284 pays décrits dans cet ensemble de données.
Le Bureau du géographe des États-Unis fournit l'ensemble de données LSIB (Large Scale International Boundary). La version détaillée (2013) est dérivée de deux autres ensembles de données : un fichier vectoriel de lignes LSIB et les World Vector Shorelines (WVS) de la National Geospatial-Intelligence Agency (NGA). Les limites intérieures reflètent les règles du gouvernement américain concernant…
[null,null,[],[[["\u003cp\u003eThe USDOS LSIB Simple 2017 dataset provides simplified international boundary polygons for 284 countries, derived from the detailed LSIB and excluding smaller islands.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset reflects US government policies on boundaries, boundary disputes, and sovereignty, with exterior boundaries derived from the World Vector Shorelines.\u003c/p\u003e\n"],["\u003cp\u003eThe simplified boundary lines in this dataset are generally within 100 meters of the detailed LSIB lines, and some disjoint country regions have been merged into single features.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset is available as a FeatureCollection and FeatureView in Earth Engine and includes attributes such as country name, abbreviation, FIPS code, and continental region.\u003c/p\u003e\n"],["\u003cp\u003eThis US public domain data has no restrictions on use.\u003c/p\u003e\n"]]],["The dataset, provided by the US Department of State, offers a simplified version of the Large Scale International Boundary (LSIB) dataset from 2017. It includes 312 features representing 284 countries with simplified boundaries and excludes smaller islands. Users can access it through Earth Engine using `ee.FeatureCollection(\"USDOS/LSIB_SIMPLE/2017\")` or via the `FeatureView` layer. Data schema includes country name, code, abbreviation, and continental region. The data can be visualized using provided JavaScript code snippets, with no restrictions on its use.\n"],null,["# LSIB 2017: Large Scale International Boundary Polygons, Simplified\n\nDataset Availability\n: 2017-03-30T00:00:00Z--2017-03-30T00:00:00Z\n\nDataset Provider\n:\n\n\n [United States Department of State, Office of the Geographer](https://geonode.state.gov/layers/catalog:geonode:LSIB)\n\nTags\n:\n[borders](/earth-engine/datasets/tags/borders) [countries](/earth-engine/datasets/tags/countries) [dos](/earth-engine/datasets/tags/dos) [infrastructure-boundaries](/earth-engine/datasets/tags/infrastructure-boundaries) [political](/earth-engine/datasets/tags/political) [table](/earth-engine/datasets/tags/table) [usdos](/earth-engine/datasets/tags/usdos) \n\n#### Description\n\nThe United States Office of the Geographer provides\nthe Large Scale International Boundary (LSIB) dataset. The detailed\nversion (2013) is derived from two other datasets: a LSIB line\nvector file and the World Vector Shorelines (WVS) from the National\nGeospatial-Intelligence Agency (NGA). The interior boundaries\nreflect U.S. government policies on boundaries, boundary disputes,\nand sovereignty. The exterior boundaries are derived from the\nWVS; however, the WVS coastline data is outdated and generally\nshifted from between several hundred meters to over a kilometer.\nEach feature is the polygonal area enclosed by interior boundaries\nand exterior coastlines where applicable, and many countries\nconsist of multiple features, one per disjoint region.\n\nCompared with the detailed LSIB, in this simplified dataset some disjointed\nregions of each country have been reduced to a single feature.\nFurthermore, it excludes medium and smaller islands. The resulting\nsimplified boundary lines are rarely shifted by more than 100\nmeters from the detailed LSIB lines. Each of the 312 features\nis a part of the geometry of one of the 284 countries described\nin this dataset.\n\n### Table Schema\n\n**Table Schema**\n\n| Name | Type | Description |\n|------------|--------|------------------------------------------------------------------------------------------|\n| abbreviati | STRING | Country abbreviation |\n| country_co | STRING | [Two-letter FIPS country code](https://en.wikipedia.org/wiki/List_of_FIPS_country_codes) |\n| country_na | STRING | US-recognized country name |\n| wld_rgn | STRING | Continental region, e.g. South America |\n\n### Terms of Use\n\n**Terms of Use**\n\nThere are no restrictions on use of this US public domain data.\n\n### Explore with Earth Engine\n\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.FeatureCollection('USDOS/LSIB_SIMPLE/2017');\nvar styleParams = {\n fillColor: 'b5ffb4',\n color: '00909F',\n width: 3,\n};\nvar countries = dataset.style(styleParams);\nMap.setCenter(16.35, 48.83, 4);\nMap.addLayer(countries, {}, 'USDOS/LSIB_SIMPLE/2017', true, 0.8);\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/USDOS/USDOS_LSIB_SIMPLE_2017)\n\n### Visualize as a FeatureView\n\n\nA `FeatureView` is a view-only, accelerated representation of a\n`FeatureCollection`. For more details, visit the\n[`FeatureView` documentation.](/earth-engine/guides/featureview_overview)\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar fvLayer = ui.Map.FeatureViewLayer('USDOS/LSIB_SIMPLE/2017_FeatureView');\n\nvar visParams = {\n color: '00909F',\n fillColor: 'b5ffb4',\n width: 3,\n opacity: 1\n};\n\nfvLayer.setVisParams(visParams);\nfvLayer.setName('USDOS/LSIB_SIMPLE/2017');\n\nMap.setCenter(16.35, 48.83, 4);\nMap.add(fvLayer);\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/USDOS/USDOS_LSIB_SIMPLE_2017_FeatureView) \n[LSIB 2017: Large Scale International Boundary Polygons, Simplified](/earth-engine/datasets/catalog/USDOS_LSIB_SIMPLE_2017) \nThe United States Office of the Geographer provides the Large Scale International Boundary (LSIB) dataset. The detailed version (2013) is derived from two other datasets: a LSIB line vector file and the World Vector Shorelines (WVS) from the National Geospatial-Intelligence Agency (NGA). The interior boundaries reflect U.S. government policies on ... \nUSDOS/LSIB_SIMPLE/2017, borders,countries,dos,infrastructure-boundaries,political,table,usdos \n2017-03-30T00:00:00Z/2017-03-30T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://geonode.state.gov/layers/catalog:geonode:LSIB)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/USDOS_LSIB_SIMPLE_2017)"]]
