Ten zbiór danych zawiera pełne maski klasyfikacji lodu lądowego i oceanu na obszarze pokrywy lodowej Grenlandii w rozdzielczości 15 m.
Pokrywa lodowa została zmapowana na podstawie połączenia ortorektyfikowanych obrazów panchromatycznych (pasmo 8) z instrumentu Enhanced Thematic Mapper Plus (ETM+) na satelicie Landsat 7, rozpowszechnianych przez USGS, oraz obrazów amplitudy z radaru z syntetyczną aperturą (SAR) na satelicie RADARSAT-1, wyprodukowanych i rozpowszechnianych przez I. Joughin z Laboratorium Fizyki Stosowanej Uniwersytetu Waszyngtońskiego.
Zdjęcia Landsat zostały wykonane w okresie od lipca do września w latach 1999, 2000 i 2001 (głównie w 2000 r.), a zdjęcia RADARSAT – jesienią 2000 r.
Pasma
Rozmiar piksela 15 metrów
Pasma
Nazwa
Rozmiar piksela
Opis
ocean_mask
metry
Maska oceanu
ice_mask
metry
Maska lodowa
Tabela klas ocean_mask
Wartość
Kolor
Opis
0
#000000
wszystkie inne tereny,
1
#0000ff
ocean
Tabela klas ice_mask
Wartość
Kolor
Opis
0
#000000
nie jest lodem lodowcowym,
1
#ffffff
lód lodowcowy,
Warunki korzystania z usługi
Warunki korzystania z usługi
Warunkiem korzystania z tych danych jest podanie cytatu z tego zbioru danych.
Cytaty
Cytowania:
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-8-1509-2014artykuł w formacie PDF
Ten zbiór danych zawiera pełne maski klasyfikacji lodu lądowego i oceanu o rozdzielczości 15 m dla pokrywy lodowej Grenlandii. Pokrywa lodowa została zmapowana przy użyciu ortorektyfikowanych zdjęć panchromatycznych (pasmo 8) z Landsat 7 Enhanced Thematic Mapper Plus (ETM+), rozpowszechnianych przez USGS, oraz danych z radaru syntetycznego RADARSAT-1 (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)"]]
