Cet ensemble de données contient des estimations de la population, par âge et par sexe, par cellule de grille de 30 secondes d'arc, conformément aux recensements nationaux et aux registres de population. Une image est disponible pour chaque catégorie d'âge et de genre modélisée, sur la base du recensement de 2010.
La version 4 (révision 11) de la grille de population mondiale (GPWv4) modélise la répartition de la population humaine mondiale pour les années 2000, 2005, 2010, 2015 et 2020 dans des cellules de grille de 30 secondes d'arc (environ 1 km). La population est répartie dans les cellules à l'aide d'une allocation proportionnelle de la population à partir des unités administratives et de recensement. Les données de population en entrée sont collectées à la résolution spatiale la plus détaillée disponible à partir des résultats de la série de recensements de 2010, qui ont eu lieu entre 2005 et 2014. Les données d'entrée sont extrapolées pour produire des estimations de population pour chaque année modélisée.
Bracelets
Taille des pixels 927,67 mètres
Bandes de fréquences
Nom
Min
Max
Taille des pixels
Description
basic_demographic_characteristics
0*
140852*
mètres
Nombre estimé de personnes, par âge et par sexe, par cellule de grille de 30 secondes d'arc.
Center for International Earth Science Information Network – CIESIN – Université de Columbia. 2018. Gridded Population of the World, Version 4 (GPWv4) : caractéristiques de base, révision 11. Palisades, NY : NASA Socioeconomic Data and
Applications Center (SEDAC). doi:10.7927/H46M34XX.
Consulté le JOUR MOIS ANNÉE.
Cet ensemble de données contient des estimations de la population, par âge et par sexe, par cellule de grille de 30 secondes d'arc, conformément aux recensements nationaux et aux registres de population. Une image est disponible pour chaque catégorie d'âge et de genre modélisée, sur la base du recensement de 2010. Documentation générale La Gridded Population of World Version 4 (GPWv4), révision …
[null,null,[],[[["\u003cp\u003eThe Gridded Population of the World, Version 4 (GPWv4) dataset provides global population estimates by age and sex for the years 2000, 2005, 2010, 2015, and 2020.\u003c/p\u003e\n"],["\u003cp\u003ePopulation data is modeled on 30 arc-second (approximately 1km) grid cells, based on the 2010 round of national censuses.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset is provided by NASA SEDAC at the Center for International Earth Science Information Network and is available through Google Earth Engine.\u003c/p\u003e\n"],["\u003cp\u003eThe data is licensed under CC-BY-4.0 and requires attribution when used.\u003c/p\u003e\n"]]],["The dataset provides gridded population estimates from 2000 to 2020, updated every five years, sourced from NASA SEDAC. It models the global human population distribution per 30 arc-second (approximately 1km) grid cells, using data from the 2010 census round. Estimates are broken down by age and sex, with each cell's population ranging from 0 to 140852. Users can access the data via Earth Engine using `ee.ImageCollection(\"CIESIN/GPWv411/GPW_Basic_Demographic_Characteristics\")` and visualize it.\n"],null,["# GPWv411: Basic Demographic Characteristics (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/H46M34XX)\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 population estimates, by age and sex, per\n30 arc-second grid cell consistent with national censuses and population\nregisters. There is one image for each modeled age and sex category based\non the 2010 round of Census.\n\n[General Documentation](https://sedac.ciesin.columbia.edu/data/set/gpw-v4-basic-demographic-characteristics-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| `basic_demographic_characteristics` | 0\\* | 140852\\* | meters | The estimated number of persons, by age and sex, per 30 arc-second grid cell. |\n\n\\* estimated min or max value\n\n### Image Properties\n\n**Image Properties**\n\n| Name | Type | Description |\n|-----------|--------|-----------------------------------------|\n| Sex | STRING | The sex of a population subgroup. |\n| Age_Group | STRING | The age range of a population subgroup. |\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): Basic Characteristics, Revision 11. Palisades, NY: NASA Socioeconomic Data and\n Applications Center (SEDAC). [doi:10.7927/H46M34XX](https://doi.org/10.7927/H46M34XX).\n Accessed DAY MONTH YEAR.\n\n### DOIs\n\n- \u003chttps://doi.org/10.7927/H46M34XX\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_Basic_Demographic_Characteristics').first();\nvar raster = dataset.select('basic_demographic_characteristics');\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, 'basic_demographic_characteristics');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/CIESIN/CIESIN_GPWv411_GPW_Basic_Demographic_Characteristics) \n[GPWv411: Basic Demographic Characteristics (Gridded Population of the World Version 4.11)](/earth-engine/datasets/catalog/CIESIN_GPWv411_GPW_Basic_Demographic_Characteristics) \nThis dataset contains population estimates, by age and sex, per 30 arc-second grid cell consistent with national censuses and population registers. There is one image for each modeled age and sex category based on the 2010 round of Census. General Documentation The Gridded Population of World Version 4 (GPWv4), Revision ... \nCIESIN/GPWv411/GPW_Basic_Demographic_Characteristics, 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/H46M34XX](https://doi.org/https://doi.org/10.7927/H46M34XX)\n- [https://doi.org/10.7927/H46M34XX](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/CIESIN_GPWv411_GPW_Basic_Demographic_Characteristics)"]]
