La mosaïque d'images Landsat de l'Antarctique (LIMA) est une mosaïque continue et pratiquement sans nuages, créée à partir de scènes Landsat 7 ETM+ traitées.
Cet ensemble de données LIMA est le LIMA intermédiaire 16 bits.
La mosaïque est composée de scènes de réflectance de surface normalisée affinées par fusion panchromatique (bandes 1, 2, 3 et 4 de Landsat ETM+). La mosaïque a été construite en ordonnant les images sans nuages en haut et en découpant les limites des images lorsque des discontinuités de tuiles se produisaient.
Ces images appartiennent au domaine public et peuvent être utilisées librement et sans mention de source. Toutefois, nous vous serions reconnaissants de mentionner le projet LIMA (Landsat Image Mosaic of Antarctica).
Citations
Citations :
Bindschadler, R., Vornberger, P., Fleming, A., Fox, A., Mullins, J.,
Binnie, D., Paulson, S., Granneman, B., et Gorodetzky, D., 2008,
The Landsat Image Mosaic of Antarctica, Remote Sensing of
Environment, 112, pp. 4214-4226.
PDF
La mosaïque d'images Landsat de l'Antarctique (LIMA) est une mosaïque homogène et pratiquement sans nuages, créée à partir de scènes Landsat 7 ETM+ traitées. Cet ensemble de données LIMA est le LIMA intermédiaire 16 bits. La mosaïque est composée de scènes de réflectance de surface normalisées et affinées (bandes 1, 2, 3 et 4 de Landsat ETM+). La mosaïque a été construite…
[null,null,[],[[["\u003cp\u003eLIMA is a cloud-free mosaic of Antarctica created from Landsat 7 ETM+ scenes, offering a seamless, high-resolution view of the continent.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset provides pan-sharpened, normalized surface reflectance in the blue, green, red, and near-infrared wavelengths with a 15-meter resolution.\u003c/p\u003e\n"],["\u003cp\u003eThe mosaic was created by prioritizing cloud-free images and carefully trimming boundaries to minimize discontinuities.\u003c/p\u003e\n"],["\u003cp\u003eLIMA data is public domain and can be used freely, although attribution to the project is appreciated.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset covers the period from June 30, 1999, to September 4, 2002.\u003c/p\u003e\n"]]],["The Landsat Image Mosaic of Antarctica (LIMA) dataset, provided by USGS, spans from June 30, 1999, to September 4, 2002. It's a cloudless mosaic of processed Landsat 7 ETM+ scenes, using pan-sharpened normalized surface reflectance data. The mosaic was created by layering cloud-free images and adjusting boundaries. Data, available in 15-meter pixel size, is accessible via Earth Engine using the snippet `ee.Image(\"USGS/LIMA/MOSAIC\")`, and users can explore tile footprints at `USGS/LIMA/MOSAIC_TILE_FOOTPRINTS`.\n"],null,["# Landsat Image Mosaic of Antarctica (LIMA) 16-Bit Pan-Sharpened Mosaic\n\nDataset Availability\n: 1999-06-30T00:00:00Z--2002-09-04T00:00:00Z\n\nDataset Provider\n:\n\n\n [USGS](https://lima.usgs.gov/index.php)\n\nTags\n:\n[antarctica](/earth-engine/datasets/tags/antarctica) [ice](/earth-engine/datasets/tags/ice) [landsat-derived](/earth-engine/datasets/tags/landsat-derived) [lima](/earth-engine/datasets/tags/lima) [mosaic](/earth-engine/datasets/tags/mosaic) [satellite-imagery](/earth-engine/datasets/tags/satellite-imagery) [sr](/earth-engine/datasets/tags/sr) [usgs](/earth-engine/datasets/tags/usgs) \n\n#### Description\n\nThe Landsat Image Mosaic of Antarctica (LIMA) is a seamless\nand virtually cloudless mosaic created from processed\nLandsat 7 ETM+ scenes.\n\nThis LIMA dataset is the 16-bit Intermediate LIMA.\nThe mosaic consists of pan-sharpened normalized surface reflectance\nscenes (Landsat ETM+ bands 1, 2, 3, and 4). The mosaic was\nconstructed by ordering cloud free images on top and trimming\nimage boundaries when tile discontinuities occurred.\n\nUsers can find the mosaic tile footprints available at:\n[USGS/LIMA/MOSAIC_TILE_FOOTPRINTS](https://code.earthengine.google.com/?asset=USGS/LIMA/MOSAIC_TILE_FOOTPRINTS)\n\n### Bands\n\n\n**Pixel Size**\n\n15 meters\n\n**Bands**\n\n| Name | Pixel Size | Wavelength | Description |\n|------|------------|----------------|---------------|\n| `B1` | meters | 0.45 - 0.52 μm | Blue |\n| `B2` | meters | 0.52 - 0.60 μm | Green |\n| `B3` | meters | 0.63 - 0.69 μm | Red |\n| `B4` | meters | 0.77 - 0.90 μm | Near infrared |\n\n### Terms of Use\n\n**Terms of Use**\n\nThese images are in the public domain and can be used freely\nand without acknowledgement. However, credit to the Landsat\nImage Mosaic of Antarctica (LIMA) Project is greatly appreciated.\n\n### Citations\n\nCitations:\n\n- Bindschadler, R., Vornberger, P., Fleming, A., Fox, A., Mullins, J.,\n Binnie, D., Paulson, S., Granneman, B., and Gorodetzky, D., 2008,\n The Landsat Image Mosaic of Antarctica, Remote Sensing of\n Environment, 112, pp. 4214-4226.\n [PDF](https://lima.usgs.gov/LIMA_paper.pdf)\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.Image('USGS/LIMA/MOSAIC');\nvar antarctica = dataset.select(['B3', 'B2', 'B1']);\nvar antarcticaVis = {\n min: 0.0,\n max: 10000.0,\n};\nMap.setCenter(164.619, -77.99, 7);\nMap.addLayer(antarctica, antarcticaVis, 'Antartica Imagery (RGB)');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/USGS/USGS_LIMA_MOSAIC) \n[Landsat Image Mosaic of Antarctica (LIMA) 16-Bit Pan-Sharpened Mosaic](/earth-engine/datasets/catalog/USGS_LIMA_MOSAIC) \nThe Landsat Image Mosaic of Antarctica (LIMA) is a seamless and virtually cloudless mosaic created from processed Landsat 7 ETM+ scenes. This LIMA dataset is the 16-bit Intermediate LIMA. The mosaic consists of pan-sharpened normalized surface reflectance scenes (Landsat ETM+ bands 1, 2, 3, and 4). The mosaic was constructed ... \nUSGS/LIMA/MOSAIC, antarctica,ice,landsat-derived,lima,mosaic,satellite-imagery,sr,usgs \n1999-06-30T00:00:00Z/2002-09-04T00:00:00Z \n-90 -180 -55 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://lima.usgs.gov/index.php)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/USGS_LIMA_MOSAIC)"]]
