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RSS FeedsRemote Sensing, Vol. 11, Pages 574: Population Mapping with Multisensor Remote Sensing Images and Point-Of-Interest Data (Remote Sensing)

 
 

9 march 2019 08:00:24

 
Remote Sensing, Vol. 11, Pages 574: Population Mapping with Multisensor Remote Sensing Images and Point-Of-Interest Data (Remote Sensing)
 




Fine-resolution population distribution mapping is necessary for many purposes, which cannot be met by aggregated census data due to privacy. Many approaches utilize ancillary data that are related to population density, such as nighttime light imagery and land use, to redistribute the population from census to finer-scale units. However, most of the ancillary data used in the previous studies of population modeling are environmental data, which can only provide a limited capacity to aid population redistribution. Social sensing data with geographic information, such as point-of-interest (POI), are emerging as a new type of ancillary data for urban studies. This study, as a nascent attempt, combined POI and multisensor remote sensing data into new ancillary data to aid population redistribution from census to grid cells at a resolution of 250 m in Zhejiang, China. The accuracy of the results was assessed by comparing them with WorldPop. Results showed that our approach redistributed the population with fewer errors than WorldPop, especially at the extremes of population density. The approach developed in this study—incorporating POI with multisensor remotely sensed data in redistributing the population onto finer-scale spatial units—possessed considerable potential in the era of big data, where a substantial volume of social sensing data is increasingly being collected and becoming available.


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37 viewsCategory: Geology, Physics
 
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