Fig. 1. The overview of the Qinghai-Tibet Plateau

Fig. 2. Time series of the inflow, outflow and total flow of population on the Qinghai-Tibet Plateau

Fig. 3. Flow chart of seasonal division by population mobility of the Qinghai-Tibet Plateau

Fig. 4. Results of the seasonal division by population mobility of the Qinghai-Tibet Plateau

Fig. 5. PageRank values of the Qinghai-Tibet Plateau nodes and their positional changes in the PNC

Fig. 6. The statistical characteristics of the Qinghai-Tibet Plateau for population mobility in different seasons and directions

Fig. 7. The polar figure of seasonal changes in population inflow (a) and outflow (b) between the Qinghai-Tibet Plateau and 14 major cities

Fig. 8. The cumulative percentage and cumulative value curve of population interaction intensity with the number of cities (a) and with the distance to the Qinghai-Tibet Plateau (b)

Fig. 9. The spatiotemporal characteristics of population mobility in major cities closely related to the Qinghai-Tibet Plateau

Fig. 10. Spatiotemporal patterns in the intensity of population mobility in major cities closely related to the Qinghai-Tibet Plateau