Kumpulan data ini menyediakan mask klasifikasi lengkap es daratan dan lautan pada 15 m untuk lapisan es Greenland.
Cakupan es dipetakan menggunakan kombinasi gambar pankromatik yang telah diortorektifikasi (band 8) dari Landsat 7 Enhanced Thematic Mapper Plus (ETM+), yang didistribusikan oleh USGS, dan gambar amplitudo RADARSAT-1 Synthetic Amplitude Radar (SAR) yang diproduksi dan didistribusikan oleh I. Joughin di Applied Physics
Laboratory, University of Washington.
Gambar Landsat diperoleh untuk bulan Juli hingga September pada tahun 1999, 2000, dan 2001 (sebagian besar tahun 2000), dan gambar RADARSAT diperoleh pada musim gugur tahun 2000.
Band
Ukuran Piksel 15 meter
Band
Nama
Ukuran Piksel
Deskripsi
ocean_mask
meter
Masker laut
ice_mask
meter
Masker es
ocean_mask Class Table
Nilai
Warna
Deskripsi
0
#000000
semua medan lainnya
1
#0000ff
lautan
Tabel Kelas ice_mask
Nilai
Warna
Deskripsi
0
#000000
bukan es gletser
1
#ffffff
es gletser
Persyaratan Penggunaan
Persyaratan Penggunaan
Sebagai syarat penggunaan data ini, Anda harus mengutip penggunaan set data ini menggunakan kutipan yang diberikan.
Kutipan
Kutipan:
Howat, I.M., A. Negrete, B.E. Smith, 2014, The Greenland Ice
Mapping Project (GIMP) land classification and surface elevation
datasets, The Cryosphere, 8, 1509-1518,
doi:10.5194/tc-8-1509-2014article pdf
Kumpulan data ini menyediakan mask klasifikasi lengkap es daratan dan lautan pada 15 m untuk lapisan es Greenland. Cakupan es dipetakan menggunakan kombinasi gambar pankromatik yang telah diortorektifikasi (band 8) dari Landsat 7 Enhanced Thematic Mapper Plus (ETM+), yang didistribusikan oleh USGS, dan RADARSAT-1 Synthetic Amplitude Radar (SAR) …
[null,null,[],[[["\u003cp\u003eThis dataset provides 15m resolution land ice and ocean classification masks for the Greenland ice sheet.\u003c/p\u003e\n"],["\u003cp\u003eIt utilizes Landsat 7 ETM+ and RADARSAT-1 SAR imagery primarily acquired between 1999 and 2001.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset includes two bands: \u003ccode\u003eocean_mask\u003c/code\u003e and \u003ccode\u003eice_mask\u003c/code\u003e, identifying ocean and glacier ice respectively.\u003c/p\u003e\n"],["\u003cp\u003eUsers must cite the provided sources when using this dataset, including the Howat et al.(2014) publication.\u003c/p\u003e\n"]]],["The dataset provides 15-meter resolution land ice and ocean classification masks for the Greenland ice sheet, using Landsat 7 ETM+ imagery from July-September (1999-2001) and RADARSAT-1 SAR imagery from fall 2000. It includes `ocean_mask` (0 for other terrain, 1 for ocean) and `ice_mask` (0 for no glacier ice, 1 for glacier ice). Data is available from June 30, 1999, to September 4, 2002, with provider NASA NSIDC DAAC. Access is provided through Google Earth Engine.\n"],null,["# Greenland Ice & Ocean Mask - Greenland Mapping Project (GIMP)\n\nDataset Availability\n: 1999-06-30T00:00:00Z--2002-09-04T00:00:00Z\n\nDataset Provider\n:\n\n\n [NASA NSIDC DAAC at CIRES](https://doi.org/10.5067/B8X58MQBFUPA)\n\nTags\n:\n [arctic](/earth-engine/datasets/tags/arctic) [cryosphere](/earth-engine/datasets/tags/cryosphere) [gimp](/earth-engine/datasets/tags/gimp) [greenland](/earth-engine/datasets/tags/greenland) [ice](/earth-engine/datasets/tags/ice) [nasa](/earth-engine/datasets/tags/nasa) [polar](/earth-engine/datasets/tags/polar) \nmask \n\n#### Description\n\nThis dataset provides complete land ice and ocean\nclassification masks at 15 m for the Greenland ice sheet.\nIce cover was mapped using\na combination of orthorectified panchromatic (band 8)\nimagery from the Landsat 7 Enhanced Thematic Mapper\nPlus (ETM+), distributed by the USGS, and RADARSAT-1\nSynthetic Amplitude Radar (SAR) amplitude images produced\nand distributed by I. Joughin at the Applied Physics\nLaboratory, University of Washington.\n\nThe Landsat imagery was acquired for the months of July\nthrough September in 1999, 2000 and 2001 (mostly 2000)\nand the RADARSAT imagery was acquired in fall of 2000.\n\n### Bands\n\n\n**Pixel Size**\n\n15 meters\n\n**Bands**\n\n| Name | Pixel Size | Description |\n|--------------|------------|-------------|\n| `ocean_mask` | meters | Ocean mask |\n| `ice_mask` | meters | Ice mask |\n\n**ocean_mask Class Table**\n\n| Value | Color | Description |\n|-------|---------|-------------------|\n| 0 | #000000 | all other terrain |\n| 1 | #0000ff | ocean |\n\n**ice_mask Class Table**\n\n| Value | Color | Description |\n|-------|---------|-----------------|\n| 0 | #000000 | not glacier ice |\n| 1 | #ffffff | glacier ice |\n\n### Terms of Use\n\n**Terms of Use**\n\nAs a condition of using these data, you must cite the use of this\ndata set using the given citation.\n\n### Citations\n\nCitations:\n\n- Howat, I.M., A. Negrete, B.E. Smith, 2014, The Greenland Ice\n Mapping Project (GIMP) land classification and surface elevation\n datasets, The Cryosphere, 8, 1509-1518,\n [doi:10.5194/tc-8-1509-2014](https://doi.org/10.5194/tc-8-1509-2014)\n [article pdf](https://www.the-cryosphere.net/8/1509/2014/tc-8-1509-2014.pdf)\n\n### DOIs\n\n- \u003chttps://doi.org/10.5067/B8X58MQBFUPA\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.Image('OSU/GIMP/2000_ICE_OCEAN_MASK');\nvar oceanAndIceMaskVis = {\n min: 0.0,\n max: 1.0,\n bands: ['ice_mask', 'ice_mask', 'ocean_mask'],\n};\nMap.setCenter(-41.0, 74.0, 4);\nMap.addLayer(dataset, oceanAndIceMaskVis, 'Ocean and Ice Mask');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/OSU/OSU_GIMP_2000_ICE_OCEAN_MASK) \n[Greenland Ice \\& Ocean Mask - Greenland Mapping Project (GIMP)](/earth-engine/datasets/catalog/OSU_GIMP_2000_ICE_OCEAN_MASK) \nThis dataset provides complete land ice and ocean classification masks at 15 m for the Greenland ice sheet. Ice cover was mapped using a combination of orthorectified panchromatic (band 8) imagery from the Landsat 7 Enhanced Thematic Mapper Plus (ETM+), distributed by the USGS, and RADARSAT-1 Synthetic Amplitude Radar (SAR) ... \nOSU/GIMP/2000_ICE_OCEAN_MASK, arctic,cryosphere,gimp,greenland,ice,nasa,polar \n1999-06-30T00:00:00Z/2002-09-04T00:00:00Z \n58.79601275381146 -89.3211593425295 83.95386175580668 7.555941634834938 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.5067/B8X58MQBFUPA](https://doi.org/https://doi.org/10.5067/B8X58MQBFUPA)\n- [https://doi.org/10.5067/B8X58MQBFUPA](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/OSU_GIMP_2000_ICE_OCEAN_MASK)"]]
