O conjunto de dados de águas continentais globais mostra corpos de água doce e salgada, rios e reservatórios.
Desde a época do GLS 2000, foram identificados 3.650.723 km² de água doce, cerca de três quartos na América do Norte e na Ásia. As florestas boreais e a tundra têm a maior parte da água doce, cerca de 40% do total global. Os dados mostram uma forte correlação linear com o conjunto de dados do MODIS e com conjuntos de dados de resolução de 30 m nos Estados Unidos e no Canadá. Os erros residuais foram causados principalmente pela sazonalidade da cobertura de água, neve e gelo, além de nuvens residuais.
O conjunto de dados contém uma ou mais imagens para cada caminho/linha do WRS2 do Landsat disponível.
Os direitos de propriedade intelectual deste conjunto de dados pertencem à Universidade de Maryland, ao Departamento de Ciências Geográficas e à NASA. O uso é sem custo financeiro se o reconhecimento for feito.
Citações
Citações:
Citação de dados: Global Inland Water, {Year, ...}, Global Land Cover Facility.
O conjunto de dados de águas continentais globais mostra corpos de água doce e salgada, como lagos, rios e reservatórios. Na época do GLS 2000, foram identificados 3.650.723 km² de água doce, cerca de três quartos na América do Norte e na Ásia. As florestas boreais e a tundra têm a maior parte de…
[null,null,[],[[["\u003cp\u003eThe Global Inland Water dataset identifies inland surface water bodies, including lakes, rivers, and reservoirs, primarily using Landsat imagery from the year 2000.\u003c/p\u003e\n"],["\u003cp\u003eApproximately 3,650,723 km² of inland water were identified globally, with a large concentration in North America and Asia, and boreal forests and tundra containing about 40% of the total.\u003c/p\u003e\n"],["\u003cp\u003eThis 30-meter resolution dataset classifies water bodies, land, snow/ice, and cloud cover, with detailed documentation and code examples provided for users.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset is freely available for use with proper acknowledgment to the University of Maryland, Department of Geographical Sciences, and NASA.\u003c/p\u003e\n"],["\u003cp\u003eUsers can explore and analyze this dataset using Google Earth Engine, a platform for geospatial data analysis and visualization.\u003c/p\u003e\n"]]],[],null,["# GLCF: Landsat Global Inland Water\n\nDataset Availability\n: 2000-01-01T00:00:00Z--2000-12-31T00:00:00Z\n\nDataset Provider\n:\n\n\n [NASA LP DAAC at the USGS EROS Center](https://doi.org/10.5067/MEASURES/GFCC/GFCC30WC.001)\n\nTags\n:\n[glcf](/earth-engine/datasets/tags/glcf) [landsat-derived](/earth-engine/datasets/tags/landsat-derived) [nasa](/earth-engine/datasets/tags/nasa) [surface-ground-water](/earth-engine/datasets/tags/surface-ground-water) [umd](/earth-engine/datasets/tags/umd) [water](/earth-engine/datasets/tags/water) \n\n#### Description\n\nThe Global Inland Water dataset shows inland surface water bodies, including\nfresh and saline lakes, rivers, and reservoirs.\n\nFrom the GLS 2000 epoch, 3,650,723 km2 of inland water were identified,\naround three quarters of which were in North America and Asia. Boreal\nforests and tundra hold the largest portion of inland water, about 40% of\nthe global total. The data exhibits strong linear correlation with both the\nMODIS dataset as well as 30-m resolution datasets over the United States\nand Canada. Residual errors were due primarily to the seasonality of water\ncover, snow and ice, and residual clouds.\n\nThe dataset contains one or more image for each available Landsat WRS2\npath/row.\n\nDocumentation:\n\n- [User's guide](https://lpdaac.usgs.gov/documents/1371/GFCC_User_Guide_V1.pdf)\n\n- [Algorithm Theoretical Basis Document (ATBD)](https://lpdaac.usgs.gov/documents/1370/GFCC_ATBD.pdf)\n\n### Bands\n\n\n**Pixel Size**\n\n30 meters\n\n**Bands**\n\n| Name | Pixel Size | Description |\n|---------|------------|----------------------|\n| `water` | meters | Water classification |\n\n**water Class Table**\n\n| Value | Color | Description |\n|-------|---------|--------------|\n| 1 | #fafafa | Land |\n| 2 | #00c5ff | Water |\n| 4 | #df73ff | Snow/ice |\n| 200 | #828282 | Cloud shadow |\n| 201 | #cccccc | Cloud |\n\n### Image Properties\n\n**Image Properties**\n\n| Name | Type | Description |\n|---------------------|----------|---------------------|\n| path | DOUBLE | Path |\n| pathrow | STRING | Path and row |\n| row | DOUBLE | Row |\n| water_class_names | DOUBLE | Water class names |\n| water_class_palette | DOUBLE | Water class palette |\n| water_class_values | INT_LIST | Water class values |\n\n### Terms of Use\n\n**Terms of Use**\n\nIntellectual property rights to this dataset belong to University of\nMaryland, Department of Geographical Sciences and NASA. Usage is free if\nacklowedgement is made.\n\n### Citations\n\nCitations:\n\n- Data Citation: Global Inland Water, {Year, ...}, Global Land Cover\n Facility.\n- Paper/Methods Citation: Feng, Min, Joseph O. Sexton, Saurabh Channan,\n and John R. Townshend. 2015. [A Global, High-Resolution (30-M) Inland Water\n Body Dataset for 2000: First Results of a Topographic-Spectral\n Classification Algorithm](https://www.tandfonline.com/doi/pdf/10.1080/17538947.2015.1026420).\n International Journal of Digital Earth.\n [doi:10.1080/17538947.2015.1026420](https://doi.org/10.1080/17538947.2015.1026420).\n\n### DOIs\n\n- \u003chttps://doi.org/10.1080/17538947.2015.1026420\u003e\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.ImageCollection('GLCF/GLS_WATER');\nvar water = dataset.select('water');\nvar waterVis = {\n min: 1.0,\n max: 4.0,\n palette: ['fafafa', '00c5ff', 'df73ff', '828282', 'cccccc'],\n};\nMap.setCenter(-79.3094, 44.5693, 8);\nMap.addLayer(water, waterVis, 'Water');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/GLCF/GLCF_GLS_WATER) \n[GLCF: Landsat Global Inland Water](/earth-engine/datasets/catalog/GLCF_GLS_WATER) \nThe Global Inland Water dataset shows inland surface water bodies, including fresh and saline lakes, rivers, and reservoirs. From the GLS 2000 epoch, 3,650,723 km2 of inland water were identified, around three quarters of which were in North America and Asia. Boreal forests and tundra hold the largest portion of ... \nGLCF/GLS_WATER, glcf,landsat-derived,nasa,surface-ground-water,umd,water \n2000-01-01T00:00:00Z/2000-12-31T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.1080/17538947.2015.1026420](https://doi.org/https://doi.org/10.5067/MEASURES/GFCC/GFCC30WC.001)\n- [https://doi.org/10.1080/17538947.2015.1026420](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/GLCF_GLS_WATER)"]]
