Center for International Earth Science Information Network - CIESIN -
Columbia University. 2016 年。世界网格化人口,第 4 版 (GPWv4):人口数量已调整为与联合国《世界人口展望》2015 年修订版中的国家/地区总数保持一致。Palisades, NY: NASA Socioeconomic Data and Applications Center
(SEDAC). https://doi.org/10.7927/H4SF2T42.
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[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],[],[],["The GPWv4 dataset models global human population distribution for 2000, 2005, 2010, 2015, and 2020, using 1km grid cells. It allocates population proportionally from census data, extrapolated to produce yearly estimates. The dataset provides the number of persons per grid cell, adjusted to match UN population projections, and is accessible via Earth Engine, using `ee.ImageCollection(\"CIESIN/GPWv4/unwpp-adjusted-population-count\")`. This data is provided under a CC-BY-4.0 license and is now superseded by a newer dataset.\n"]]