การใช้ข้อมูล PGC ใน Earth Engine หมายความว่าผู้ใช้ยอมรับที่จะอ้างอิง PGC
และการสนับสนุนของ NSF แหล่งที่มาดั้งเดิมของข้อมูลบุคคลที่สามที่ PGC จัดหาให้ต้องมีการระบุแหล่งที่มาอย่างถูกต้องด้วย
[null,null,[],[[["\u003cp\u003eREMA is a high-resolution Digital Surface Model (DSM) of Antarctica, available at 2-meter and 8-meter resolutions.\u003c/p\u003e\n"],["\u003cp\u003eIt covers the period from 2009 to 2018 and is derived from stereoscopic imagery collected by DigitalGlobe's satellites.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset is provided by the University of Minnesota Polar Geospatial Center (PGC) and is available in Earth Engine.\u003c/p\u003e\n"],["\u003cp\u003eUsers must acknowledge NSF support and properly attribute PGC and any third-party data sources when using this dataset.\u003c/p\u003e\n"],["\u003cp\u003eREMA provides elevation data and a matchtag band indicating pixel processing information.\u003c/p\u003e\n"]]],[],null,["# REMA Strips 2m\n\nDataset Availability\n: 2009-01-01T00:00:00Z--2018-01-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [University of Minnesota Polar Geospatial Center](https://www.pgc.umn.edu/data/arcticdem/)\n\nTags\n:\n[dem](/earth-engine/datasets/tags/dem) [elevation-topography](/earth-engine/datasets/tags/elevation-topography) [geophysical](/earth-engine/datasets/tags/geophysical) [pgc](/earth-engine/datasets/tags/pgc) [rema](/earth-engine/datasets/tags/rema) [umn](/earth-engine/datasets/tags/umn) \n\n#### Description\n\nThe Reference Elevation Model of Antarctica (REMA) is a high resolution,\ntime-stamped Digital Surface Model (DSM) of Antarctica at 2-meter and 8-meter\nspatial resolutions.\n\nStrip DEM files correspond to the overlapping area of the input stereoscopic\nimagery pair strips as they are collected by DigitalGlobe's constellation\nof polar-orbiting satellites. Strip DEM dimensions will vary according to\nthe satellite sensor that acquired the images and the off-nadir angle of\ncollection. Most strips are between 13 km and 17 km in width, and 110 km\nand 120 km in length.\n\n### Bands\n\n\n**Pixel Size**\n\n2 meters\n\n**Bands**\n\n| Name | Units | Pixel Size | Description |\n|-------------|-------|------------|-------------------------------------------------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| `elevation` | m | meters | Elevation |\n| `matchtag` | | meters | Bitmask raster indicating DEM pixels processing |\n| Bitmask for matchtag - Bit 0: Pixel processing - 0: Pixels have been interpolated - 1: Pixels are derived from a stereo match ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n\n### Terms of Use\n\n**Terms of Use**\n\nNational Science Foundation (PGC's primary funding source) policy requires\nresearchers to acknowledge NSF support in all publications, web pages, and\nmedia interviews.\n\nBy using PGC data in Earth Engine, users agree to cite PGC\nand its sponsorship by the NSF. The original source of any third-party data\nsupplied by PGC must also be properly attributed.\n\nFor more information see the PGC's\n[Acknowledgement Policy](https://www.pgc.umn.edu/guides/user-services/acknowledgement-policy/).\n\n### Citations\n\nCitations:\n\n- Howat, I. M., Porter, C., Smith, B. E., Noh, M.-J., and Morin, P.:\n The Reference Elevation Model of Antarctica, The Cryosphere, 13, 665-674, 2019.\n\n### DOIs\n\n- \u003chttps://doi.org/10.5194/tc-13-665-2019\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 collection = ee.ImageCollection('UMN/PGC/REMA/V1/2m');\n\nMap.setCenter(-60, -75, 3);\n\nvar elevationVis = {\n bands: ['elevation'],\n min: -50.0,\n max: 1000.0,\n palette: ['0d13d8', '60e1ff', 'ffffff'],\n};\n\nMap.addLayer(collection, elevationVis, 'REMA_DEM_strips_2m');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/UMN/UMN_PGC_REMA_V1_2m) \n[REMA Strips 2m](/earth-engine/datasets/catalog/UMN_PGC_REMA_V1_2m) \nThe Reference Elevation Model of Antarctica (REMA) is a high resolution, time-stamped Digital Surface Model (DSM) of Antarctica at 2-meter and 8-meter spatial resolutions. Strip DEM files correspond to the overlapping area of the input stereoscopic imagery pair strips as they are collected by DigitalGlobe's constellation of polar-orbiting satellites. Strip ... \nUMN/PGC/REMA/V1/2m, dem,elevation-topography,geophysical,pgc,rema,umn \n2009-01-01T00:00:00Z/2018-01-01T00:00:00Z \n-88.3 -180 -53.8 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.5194/tc-13-665-2019](https://doi.org/https://www.pgc.umn.edu/data/arcticdem/)\n- [https://doi.org/10.5194/tc-13-665-2019](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/UMN_PGC_REMA_V1_2m)"]]
