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Mapping monthly population distribution and variation at 1-km resolution across China
Cheng, Zhifeng1,2; Wang, Jianghao1,2; Ge, Yong1,2
2020-12-09
Source PublicationINTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE
ISSN1365-8816
Pages19
Corresponding AuthorWang, Jianghao(wangjh@lreis.ac.cn)
AbstractFine-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.
KeywordPopulation distribution random forest area-to-point kriging China
DOI10.1080/13658816.2020.1854767
Indexed BySCI
Language英语
Funding ProjectNational 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
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
WOS Research AreaComputer Science ; Geography ; Physical Geography ; Information Science & Library Science
WOS SubjectComputer Science, Information Systems ; Geography ; Geography, Physical ; Information Science & Library Science
WOS IDWOS:000596979400001
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/137077
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWang, Jianghao
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
Recommended Citation
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.
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