Ten zbiór danych zawiera szacunki liczby osób w komórce siatki o rozmiarze 30 sekund łuku, które są zgodne z danymi z narodowych spisów powszechnych i rejestrów ludności pod względem względnego rozmieszczenia przestrzennego, ale skorygowane tak, aby odpowiadały sumom krajowym z rewizji z 2015 r. prognoz ludnościowych ONZ.
Każdy modelowany rok ma przypisany jeden obraz.
Model Gridded Population of World Version 4 (GPWv4), Revision 11 przedstawia rozkład ludności na świecie w latach 2000, 2005, 2010, 2015 i 2020 w komórkach siatki o rozmiarze 30 sekund łuku (około 1 km). Populacja jest rozdzielana na komórki za pomocą proporcjonalnego przydzielania populacji z jednostek spisowych i administracyjnych. Dane wejściowe dotyczące populacji są zbierane w najbardziej szczegółowej rozdzielczości przestrzennej dostępnej na podstawie wyników spisu powszechnego z 2010 r., który przeprowadzono w latach 2005–2014. Dane wejściowe są ekstrapolowane, aby uzyskać szacunkowe dane dotyczące populacji w każdym modelowanym roku.
Pasma
Rozmiar piksela 927,67 m
Pasma
Nazwa
Minimum
Maks.
Rozmiar piksela
Opis
unwpp-adjusted_population_count
0*
602380*
metry
Szacunkowa liczba osób w komórce siatki o rozmiarze 30 sekund łuku.
Center for International Earth Science Information Network (CIESIN) – Columbia University. 2018 r. 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.
Dostęp: DAY MONTH YEAR.
Ten zbiór danych zawiera szacunki liczby osób w komórce siatki o rozmiarze 30 sekund łuku, które są zgodne z danymi z narodowych spisów powszechnych i rejestrów ludności pod względem względnego rozmieszczenia przestrzennego, ale skorygowane tak, aby odpowiadały łącznej liczbie ludności w poszczególnych krajach w 2015 r. zgodnie z prognozami ONZ dotyczącymi ludności świata. Każdy modelowany rok ma przypisany jeden obraz. Ogólne…
[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)"]]
