哥伦比亚大学国际地球科学信息网络中心 (CIESIN)。2016 年。Gridded Population of the World, Version 4
(GPWv4): Mean Administrative Unit Area, Revision 11.
Palisades, NY: NASA Socioeconomic Data and Applications Center
(SEDAC). https://doi.org/10.7927/H42Z13KG.
访问日期：DAY MONTH YEAR。
[null,null,[],[[["\u003cp\u003eThe Gridded Population of the World, Version 4 (GPWv4) dataset models the global human population distribution for the years 2000, 2005, 2010, 2015, and 2020.\u003c/p\u003e\n"],["\u003cp\u003ePopulation data is distributed to 30 arc-second grid cells using proportional allocation from census and administrative units, based on the 2010 round of censuses.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset provides the mean area of the input units used to create population count and density grids, offering insights into the spatial resolution of the population data.\u003c/p\u003e\n"],["\u003cp\u003eIt is provided by NASA SEDAC at the Center for International Earth Science Information Network and is available under the CC-BY-4.0 license.\u003c/p\u003e\n"]]],["The dataset, provided by NASA SEDAC, models global human population distribution from 2000 to 2020. It uses data from the Gridded Population of the World Version 4 (GPWv4), revision 11. The dataset includes the mean area of input units from which population count and density grids are created. Data is on 30 arc-second grids. It is accessible via Earth Engine, using the snippet `ee.ImageCollection(\"CIESIN/GPWv411/GPW_Mean_Administrative_Unit_Area\")`, with a CC-BY-4.0 license.\n"],null,["# GPWv411: Mean Administrative Unit Area (Gridded Population of the World Version 4.11)\n\nDataset Availability\n: 2000-01-01T00:00:00Z--2020-01-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [NASA SEDAC at the Center for International Earth Science Information Network](https://doi.org/10.7927/H42Z13KG)\n\nTags\n:\n[ciesin](/earth-engine/datasets/tags/ciesin) [gpw](/earth-engine/datasets/tags/gpw) [nasa](/earth-engine/datasets/tags/nasa) [population](/earth-engine/datasets/tags/population) \n\n#### Description\n\nThis dataset contains the mean area of the input unit(s) from which population count and density grids are created.\n\n[General documentation](https://sedac.ciesin.columbia.edu/data/set/gpw-v4-admin-unit-center-points-population-estimates-rev11/docs)\n\nThe Gridded Population of World Version 4 (GPWv4), Revision 11 models the distribution\nof global human population for the years 2000, 2005, 2010, 2015, and 2020\non 30 arc-second (approximately 1 km) grid cells. Population is distributed\nto cells using proportional allocation of population from census and\nadministrative units. Population input data are collected at the most\ndetailed spatial resolution available from the results of the 2010 round of\ncensuses, which occurred between 2005 and 2014. The input data are\nextrapolated to produce population estimates for each modeled year.\n\n### Bands\n\n\n**Pixel Size**\n\n927.67 meters\n\n**Bands**\n\n| Name | Min | Max | Pixel Size | Description |\n|---------------------------------|-----|----------|------------|------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `mean_administrative_unit_area` | 0\\* | 767642\\* | meters | Displays a quantitative surface that indicates the size of the input units in square kilometers from which population count and density grids are derived. |\n\n\\* estimated min or max value\n\n### Terms of Use\n\n**Terms of Use**\n\n[CC-BY-4.0](https://spdx.org/licenses/CC-BY-4.0.html)\n\n### Citations\n\nCitations:\n\n- Center for International Earth Science Information Network - CIESIN -\n Columbia University. 2016. Gridded Population of the World, Version 4\n (GPWv4): Mean Administrative Unit Area, Revision 11.\n Palisades, NY: NASA Socioeconomic Data and Applications Center\n (SEDAC). \u003chttps://doi.org/10.7927/H42Z13KG\u003e.\n Accessed DAY MONTH YEAR.\n\n### DOIs\n\n- \u003chttps://doi.org/10.7927/H42Z13KG\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.ImageCollection('CIESIN/GPWv411/GPW_Mean_Administrative_Unit_Area');\nvar raster = dataset.select('mean_administrative_unit_area');\nvar raster_vis = {\n 'min': 0.0,\n 'palette': [\n 'ffffff',\n '747474',\n '656565',\n '3c3c3c',\n '2f2f2f',\n '000000'\n ],\n 'max': 40000.0\n};\nMap.setCenter(-88.6, 26.4, 1);\nMap.addLayer(raster, raster_vis, 'mean_administrative_unit_area');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/CIESIN/CIESIN_GPWv411_GPW_Mean_Administrative_Unit_Area) \n[GPWv411: Mean Administrative Unit Area (Gridded Population of the World Version 4.11)](/earth-engine/datasets/catalog/CIESIN_GPWv411_GPW_Mean_Administrative_Unit_Area) \nThis dataset contains the mean area of the input unit(s) from which population count and density grids are created. General documentation The Gridded Population of World Version 4 (GPWv4), Revision 11 models the distribution of global human population for the years 2000, 2005, 2010, 2015, and 2020 on 30 arc-second ... \nCIESIN/GPWv411/GPW_Mean_Administrative_Unit_Area, ciesin,gpw,nasa,population \n2000-01-01T00:00:00Z/2020-01-01T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.7927/H42Z13KG](https://doi.org/https://doi.org/10.7927/H42Z13KG)\n- [https://doi.org/10.7927/H42Z13KG](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/CIESIN_GPWv411_GPW_Mean_Administrative_Unit_Area)"]]
