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Mapping monthly population distribution and variation at 1-km resolution across China

文献类型：期刊论文

作者Cheng, Zhifeng1,2; Wang, Jianghao1,2; Ge, Yong1,2
刊名INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE
出版日期2020-12-09
页码19
关键词Population distribution random forest area-to-point kriging China
ISSN号1365-8816
DOI10.1080/13658816.2020.1854767
通讯作者Wang, Jianghao(wangjh@lreis.ac.cn)
英文摘要Fine-grained inner-annual population data are instrumental in climate change response, resource allocation, and epidemic control. However, such data are currently scarce due to the lack of human-related indicators with both high temporal resolution and long-term coverage that can be used in the process of population spatialization. Here, we estimate monthly 1-km gridded population distribution across China in 2015 using time-series mobile phone positioning data. We construct a hybrid downscaling model to map the gridded population by incorporating random forest and area-to-point kriging. The estimated monthly population products appear to capture inner-annual population variations, especially during special periods, such as the festival, holiday, and short-term labor flow period, which are characterized by large-scale population movements. Additionally, compared with census data, the hybrid model-based results obtained exhibit higher consistency than popular global population products across all spatial extents. Our monthly 1-km data products for the population distribution across China in 2015 provide a credible dataset that can be employed in studies aimed at accurate population-dependent decisions.
资助项目National Key Research and Development Program of China[2017YFB0503500] ; National Natural Science Foundation of China[41971409] ; National Natural Science Foundation of China[41531174] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
WOS研究方向Computer Science ; Geography ; Physical Geography ; Information Science & Library Science
语种英语
WOS记录号WOS:000596979400001
出版者TAYLOR & FRANCIS LTD
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/137076]  
专题中国科学院地理科学与资源研究所
通讯作者Wang, Jianghao
作者单位1.Univ Chinese Acad Sci, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Cheng, Zhifeng,Wang, Jianghao,Ge, Yong. Mapping monthly population distribution and variation at 1-km resolution across China[J]. INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE,2020:19.
APA Cheng, Zhifeng,Wang, Jianghao,&Ge, Yong.(2020).Mapping monthly population distribution and variation at 1-km resolution across China.INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE,19.
MLA Cheng, Zhifeng,et al."Mapping monthly population distribution and variation at 1-km resolution across China".INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE (2020):19.

入库方式： OAI收割

来源：地理科学与资源研究所

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