이 데이터 세트에는 30초 그리드 셀당 인구수가 포함되어 있습니다. 이 인구수는 상대적 공간 분포와 관련하여 국가 인구조사 및 인구 등록과 일치하지만 2015년 개정된 UN 세계 인구 전망 국가 총계와 일치하도록 조정되었습니다.
모델링된 연도마다 이미지가 하나씩 있습니다.
Gridded Population of World Version 4 (GPWv4), Revision 11은 30초 (약 1km) 그리드 셀에서 2000년, 2005년, 2010년, 2015년, 2020년의 전 세계 인구 분포를 모델링합니다. 인구는 인구조사 및 행정 단위의 인구 비례 할당을 사용하여 셀에 분배됩니다. 인구 입력 데이터는 2005년에서 2014년 사이에 실시된 2010년 인구 조사 결과에서 제공되는 가장 상세한 공간 해상도로 수집됩니다. 입력 데이터는 모델링된 각 연도의 인구 추정치를 생성하기 위해 외삽됩니다.
Center for International Earth Science Information Network - CIESIN -
Columbia University. 2018년. Gridded Population of the World, Version 4
(GPWv4): Population Count Adjusted to Match 2015 Revision of UN WPP Country
Totals, Revision 11. Palisades, NY: NASA Socioeconomic Data and Applications Center(SEDAC). https://doi.org/10.7927/H4PN93PB
액세스한 날짜는 DAY MONTH YEAR입니다.
[null,null,[],[[["\u003cp\u003eThe Gridded Population of the World Version 4 (GPWv4), Revision 11, provides global human population distribution estimates for 2000, 2005, 2010, 2015, and 2020.\u003c/p\u003e\n"],["\u003cp\u003ePopulation data is modeled on 30 arc-second (approximately 1km) grid cells and is adjusted to match the 2015 Revision of UN World Population Prospects country totals.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset is based on national censuses and population registers for spatial distribution and uses the most detailed resolution available from the 2010 round of censuses.\u003c/p\u003e\n"],["\u003cp\u003eData is available through Google Earth Engine and is licensed under CC-BY-4.0.\u003c/p\u003e\n"]]],[],null,["# GPWv411: Adjusted to Match 2015 Revision of UN WPP Country Totals (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/H4PN93PB)\n\nCadence\n: 5 Years\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 estimates of the number of persons per\n30 arc-second grid cell, consistent with national censuses and population\nregisters with respect to relative spatial distribution but adjusted to\nmatch the 2015 Revision of UN World Population Prospects country totals.\nThere is one image for each modeled year.\n\n[General Documentation](https://www.earthdata.nasa.gov/data/catalog/esdis-ciesin-sedac-gpwv4-popdens-r11-4.11)\n| **Note:** Because this collection has a pyramid policy of MEAN, zooming out results in information loss. Calculations need to be performed at native resolution.\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| `unwpp-adjusted_population_count` | 0\\* | 602380\\* | meters | The estimated number of persons per 30 arc-second grid cell. |\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. 2018. Gridded Population of the World, Version 4\n (GPWv4): Population Count Adjusted to Match 2015 Revision of UN WPP Country\n Totals, Revision 11. Palisades, NY: NASA Socioeconomic Data and Applications Center\n (SEDAC). \u003chttps://doi.org/10.7927/H4PN93PB\u003e.\n Accessed DAY MONTH YEAR.\n\n### DOIs\n\n- \u003chttps://doi.org/10.7927/H4PN93PB\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_UNWPP-Adjusted_Population_Count').first();\nvar raster = dataset.select('unwpp-adjusted_population_count');\nvar raster_vis = {\n 'max': 1000.0,\n 'palette': [\n 'ffffe7',\n '86a192',\n '509791',\n '307296',\n '2c4484',\n '000066'\n ],\n 'min': 0.0\n};\nMap.setCenter(79.1, 19.81, 3);\nMap.addLayer(raster, raster_vis, 'unwpp-adjusted_population_count');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/CIESIN/CIESIN_GPWv411_GPW_UNWPP-Adjusted_Population_Count) \n[GPWv411: Adjusted to Match 2015 Revision of UN WPP Country Totals (Gridded Population of the World Version 4.11)](/earth-engine/datasets/catalog/CIESIN_GPWv411_GPW_UNWPP-Adjusted_Population_Count) \nThis dataset contains estimates of the number of persons per 30 arc-second grid cell, consistent with national censuses and population registers with respect to relative spatial distribution but adjusted to match the 2015 Revision of UN World Population Prospects country totals. There is one image for each modeled year. General ... \nCIESIN/GPWv411/GPW_UNWPP-Adjusted_Population_Count, 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/H4PN93PB](https://doi.org/https://doi.org/10.7927/H4PN93PB)\n- [https://doi.org/10.7927/H4PN93PB](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/CIESIN_GPWv411_GPW_UNWPP-Adjusted_Population_Count)"]]
