ETOPO1 هو نموذج عالمي لتضاريس الأرض بدقة دقيقة قوسية واحدة، وهو يدمج تضاريس اليابسة وعمق المحيطات. وقد تم إنشاؤه من مجموعات بيانات عالمية وإقليمية عديدة. ويحتوي على نطاقَين للارتفاع: ice_surface وbedrock.
النطاقات
حجم البكسل 1855 متر
النطاقات
الاسم
الوحدات
الحد الأدنى
الحد الأقصى
حجم البكسل
الوصف
bedrock
م
-10898*
8271*
أمتار
الارتفاع عن سطح البحر عند مستوى سطح الأرض وعند قاعدة الصفائح الجليدية في القطب الجنوبي وجرينلاند
ice_surface
م
-10898*
8271*
أمتار
الارتفاع عن مستوى سطح البحر عند مستوى سطح الأرض وفي أعلى الغطاء الجليدي في القطب الجنوبي وجرينلاند
* الحدّ الأدنى أو الأقصى للقيمة المقدَّرة
بنود الاستخدام
بنود الاستخدام
ليس من الضروري الحصول على إذن مكتوب لاستخدام ETOPO1 أو منتجات NOAA الأخرى المتوفّرة في النطاق العام، ولا توجد أي رسوم لاستخدامها. كل ما نطلبه منك هو الإشارة إلى NCEI كمصدر.
الاقتباسات
الاقتباسات:
Amante, C. and B. دبليو Eakins, ETOPO1 1 Arc-Minute Global Relief
Model: Procedures, Data Sources and Analysis. NOAA Technical Memorandum
NESDIS NGDC-24, 19 pp, March 2009.
ETOPO1 هو نموذج عالمي لتضاريس سطح الأرض بدقة دقيقة قوسية واحدة، وهو يدمج تضاريس اليابسة وعمق المحيطات. تم إنشاؤه من مجموعات بيانات عالمية وإقليمية عديدة. ويحتوي على نطاقَين للارتفاع: ice_surface وbedrock.
[null,null,[],[[["\u003cp\u003eETOPO1 provides a 1 arc-minute global relief model integrating land topography and ocean bathymetry at a resolution of 1855 meters.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset includes two elevation bands: bedrock elevation and ice surface elevation.\u003c/p\u003e\n"],["\u003cp\u003eIt is freely available for use with attribution to NCEI.\u003c/p\u003e\n"],["\u003cp\u003eETOPO1 is accessible through Google Earth Engine for analysis and visualization.\u003c/p\u003e\n"],["\u003cp\u003eNOAA is the provider of this public domain dataset.\u003c/p\u003e\n"]]],["The NOAA ETOPO1 dataset, available from 2008-08-01, provides a 1 arc-minute global relief model integrating land topography and ocean bathymetry. It includes `bedrock` and `ice_surface` elevation bands, each with a pixel size of 1855 meters. The dataset, accessible via Google Earth Engine using `ee.Image(\"NOAA/NGDC/ETOPO1\")`, is free to use with proper citation of NCEI as the source and is built from multiple global and regional datasets.\n"],null,["# ETOPO1: Global 1 Arc-Minute Elevation\n\nDataset Availability\n: 2008-08-01T00:00:00Z--2008-08-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [NOAA](https://www.ngdc.noaa.gov/mgg/global/global.html)\n\nTags\n:\n[bedrock](/earth-engine/datasets/tags/bedrock) [dem](/earth-engine/datasets/tags/dem) [elevation](/earth-engine/datasets/tags/elevation) [elevation-topography](/earth-engine/datasets/tags/elevation-topography) [geophysical](/earth-engine/datasets/tags/geophysical) [ice](/earth-engine/datasets/tags/ice) [noaa](/earth-engine/datasets/tags/noaa) [topography](/earth-engine/datasets/tags/topography) \n\n#### Description\n\nETOPO1 is a 1 arc-minute global relief model of Earth''s\nsurface that integrates land topography and ocean bathymetry. It\nwas built from numerous global and regional data sets. It contains\ntwo elevation bands: ice_surface and bedrock.\n\n### Bands\n\n\n**Pixel Size**\n\n1855 meters\n\n**Bands**\n\n| Name | Units | Min | Max | Pixel Size | Description |\n|---------------|-------|----------|--------|------------|-------------------------------------------------------------------------------------|\n| `bedrock` | m | -10898\\* | 8271\\* | meters | Elevation at ground level and at the base of the Antarctic and Greenland ice sheets |\n| `ice_surface` | m | -10898\\* | 8271\\* | meters | Elevation at ground level and at the top of the Antarctic and Greenland ice sheets |\n\n\\* estimated min or max value\n\n### Terms of Use\n\n**Terms of Use**\n\nIt is not necessary to obtain written permission to\nuse ETOPO1 or other NOAA products that are in the public domain,\nnor are there any fees for using them. We ask only that you cite\nNCEI as source.\n\n### Citations\n\nCitations:\n\n- Amante, C. and B. W. Eakins, ETOPO1 1 Arc-Minute Global Relief\n Model: Procedures, Data Sources and Analysis. NOAA Technical Memorandum\n NESDIS NGDC-24, 19 pp, March 2009.\n\n### DOIs\n\n- \u003chttps://doi.org/10.7289/V5C8276M\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('NOAA/NGDC/ETOPO1');\nvar elevation = dataset.select('bedrock');\nvar elevationVis = {\n min: -7000.0,\n max: 3000.0,\n palette: ['011de2', 'afafaf', '3603ff', 'fff477', 'b42109'],\n};\nMap.setCenter(-37.62, 25.8, 2);\nMap.addLayer(elevation, elevationVis, 'Elevation');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/NOAA/NOAA_NGDC_ETOPO1) \n[ETOPO1: Global 1 Arc-Minute Elevation](/earth-engine/datasets/catalog/NOAA_NGDC_ETOPO1) \nETOPO1 is a 1 arc-minute global relief model of Earth''s surface that integrates land topography and ocean bathymetry. It was built from numerous global and regional data sets. It contains two elevation bands: ice_surface and bedrock. \nNOAA/NGDC/ETOPO1, bedrock,dem,elevation,elevation-topography,geophysical,ice,noaa,topography \n2008-08-01T00:00:00Z/2008-08-01T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.7289/V5C8276M](https://doi.org/https://www.ngdc.noaa.gov/mgg/global/global.html)\n- [https://doi.org/10.7289/V5C8276M](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/NOAA_NGDC_ETOPO1)"]]
