哥伦比亚大学国际地球科学信息网络中心 (CIESIN)。2018 年。Gridded Population of the World, Version 4 (GPWv4):水掩码,修订版 11。Palisades, NY: NASA Socioeconomic Data
and Applications Center (SEDAC). https://doi.org/10.7927/H42Z13KG.
访问日期:DAY MONTH YEAR。
[[["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 dataset, provided by NASA SEDAC, models global human population distribution from 2000 to 2020 at approximately 1km resolution. It uses a water mask to exclude water and permanent ice from population data. The dataset, named GPWv4, Revision 11, allocates population proportionally from census data. The water mask identifies water pixels, differentiating between total and partial water, land, and ocean pixels. It can be accessed via an Earth Engine snippet and is freely available for research, education, and nonprofit use under CC-BY-4.0 license.\n"]]