Ten zbiór danych reprezentuje źródło danych ze spisu ludności wykorzystane do utworzenia szacunków populacji GPW w wersji 4.11. Piksele o tej samej wartości odzwierciedlają to samo źródło danych, najczęściej kraj lub terytorium.
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
national_identifier_grid
4*
999*
metry
Liczba całkowita reprezentująca źródło danych ze spisu ludności użyte do utworzenia szacunków populacji GPWv4.11. Piksele (komórki siatki) o tej samej wartości odzwierciedlają to samo źródło danych, najczęściej kraj lub terytorium. Pamiętaj, że te dane przedstawiają obszar objęty danymi statystycznymi, a nie oficjalne granice krajów lub terytoriów.
Center for International Earth Science Information Network (CIESIN) – Columbia University. 2018 r. Gridded Population of the World, Version 4
(GPWv4): National Identifier Grid, Revision 11. Palisades, NY: NASA Socioeconomic Data
and Applications Center (SEDAC). https://doi.org/10.7927/H4F47M2C.
Dostęp: DAY MONTH YEAR.
Ten zbiór danych reprezentuje źródło danych ze spisu ludności użyte do utworzenia szacunków populacji GPW w wersji 4.11. Piksele o tej samej wartości odzwierciedlają to samo źródło danych, najczęściej kraj lub terytorium. Dokumentacja ogólna: Gridded Population of World Version 4 (GPWv4), Revision 11 to model rozkładu populacji ludzkiej na świecie…
[null,null,[],[[["\u003cp\u003eThe GPWv4.11 National Identifier Grid dataset identifies the census data sources used for the Gridded Population of the World Version 4 (GPWv4) population estimates.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset, provided by NASA SEDAC, covers the period from 2000 to 2020 and has a spatial resolution of approximately 1km (30 arc-seconds).\u003c/p\u003e\n"],["\u003cp\u003ePixels with the same value within the dataset represent the same data source, typically a country or territory.\u003c/p\u003e\n"],["\u003cp\u003eGPWv4.11 models the distribution of the global human population using data from the 2010 round of censuses, extrapolated to produce estimates for each modeled year.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset is available through Google Earth Engine and is licensed under CC-BY-4.0.\u003c/p\u003e\n"]]],["The dataset from NASA SEDAC, available from 2000 to 2020, provides census data sources for GPWv4 population estimates. It models global population distribution on a 1km grid for 2000, 2005, 2010, 2015, and 2020. Each pixel in the 'national_identifier_grid' band, with values ranging from 4 to 999, indicates a unique census data source, often representing a country or territory. Access and analysis are available through Google Earth Engine, and the data is under a CC-BY-4.0 license.\n"],null,["# GPWv411: National Identifier Grid (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/H4TD9VDP)\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 represents the Census data source used to produce\nthe GPW v4.11 populations estimates. Pixels that have the same value reflect the same\ndata source, most often a country or territory.\n\n[General Documentation](https://sedac.ciesin.columbia.edu/data/set/gpw-v4-national-identifier-grid-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| `national_identifier_grid` | 4\\* | 999\\* | meters | An integer that represents the census data source used to produce the GPWv4.11 population estimates. Pixels (grid cells) that have the same value reflect the same data source, most often a country or territory. Note that these data represent the area covered by the statistical data as provided, and are not official representations of country or territory boundaries. |\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): National Identifier Grid, Revision 11. Palisades, NY: NASA Socioeconomic Data\n and Applications Center (SEDAC). \u003chttps://doi.org/10.7927/H4F47M2C\u003e.\n Accessed DAY MONTH YEAR.\n\n### DOIs\n\n- \u003chttps://doi.org/10.7927/H4TD9VDP\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_National_Identifier_Grid');\nvar raster = dataset.select('national_identifier_grid');\nvar raster_vis = {\n 'min': 4.0,\n 'palette': [\n '000000',\n 'ffffff'\n ],\n 'max': 999.0\n};\nMap.setCenter(-88.6, 26.4, 1);\nMap.addLayer(raster, raster_vis, 'national_identifier_grid');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/CIESIN/CIESIN_GPWv411_GPW_National_Identifier_Grid) \n[GPWv411: National Identifier Grid (Gridded Population of the World Version 4.11)](/earth-engine/datasets/catalog/CIESIN_GPWv411_GPW_National_Identifier_Grid) \nThis dataset represents the Census data source used to produce the GPW v4.11 populations estimates. Pixels that have the same value reflect the same data source, most often a country or territory. General Documentation The Gridded Population of World Version 4 (GPWv4), Revision 11 models the distribution of global human ... \nCIESIN/GPWv411/GPW_National_Identifier_Grid, 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/H4TD9VDP](https://doi.org/https://doi.org/10.7927/H4TD9VDP)\n- [https://doi.org/10.7927/H4TD9VDP](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/CIESIN_GPWv411_GPW_National_Identifier_Grid)"]]
