Visualization and analysis of local and distant population flows on the Qinghai-Tibet Plateau using crowd-sourced data

doi:10.1007/s11442-021-1844-x

Abstract

Abstract:

Human migration between cities is one important aspect of spatial interaction that not only reflects urban attractiveness but also denotes interactions amongst agglomerations. We therefore implemented a web-based visualization system to analyze and interactively explore local and distant population flow patterns between cities on the Qinghai-Tibet Plateau (QTP). We utilized 2017 Tencent population flow data from which we initially constructed inbound and outbound vectors for cities on the QTP. We then used multidimensional scaling to examine and visualize migration patterns and similarities between cities. Results reveal the presence of six local and three distant human mobility patterns on the QTP as well as average summer monthly migrations more than twice the level of those in the winter.

Key words: population flow, visualization, Tencent location big data, spatiotemporal pattern, Qinghai-Tibet Plateau

XU Jun, LIU Ju, XU Yang, PEI Tao. Visualization and analysis of local and distant population flows on the Qinghai-Tibet Plateau using crowd-sourced data[J].Journal of Geographical Sciences, 2021, 31(2): 231-244.

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Rank	Out-degree		In-degree
1	Beijing	256	Beijing	244
2	Shanghai	249	Chongqing	240
3	Guangzhou	225	Shanghai	226
4	Chongqing	219	Guangzhou	192
5	Shenzhen	215	Shenzhen	189
6	Chengdu	187	Chengdu	165
7	Wuhan	157	Wuhan	126
8	Hangzhou	153	Xi’an	126
9	Tianjin	136	Dongguan	116
10	Dongguan	131	Suzhou	108
……	……		……
356	Sansha	16	Jieyang	17
357	Akxoki	16	Hezhou	17
358	Baoshan	14	Yangjiang	15