哥伦比亚大学国际地球科学信息网络中心 (CIESIN)。2016 年。世界网格化人口,第 4 版 (GPWv4):人口数量。Palisades, NY: NASA Socioeconomic Data and
Applications Center (SEDAC). https://doi.org/10.7927/H4X63JVC.
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 GPWv4 dataset models global human population distribution for 2000, 2005, 2010, 2015, and 2020, using 30 arc-second grid cells. It allocates population proportionally from census and administrative units, extrapolating data from the 2010 census round. Each grid cell's value, ranging from 0 to 970919, represents estimated persons. The data, provided by CIESIN, is accessible through Earth Engine using the identifier \"CIESIN/GPWv4/population-count\" with a five-year cadence. The dataset is now deprecated and superseded.\n"]]