Gridded population maps informed by different built settlement products
| Autor: | Andrea E. Gaughan, Fennis J. Reed, Andrew J. Tatem, Alessandro Sorichetta, Gregory Yetman, Forrest R. Stevens |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Data Descriptor
Information Systems and Management Geographic information system 010504 meteorology & atmospheric sciences Population 0211 other engineering and technologies 02 engineering and technology 01 natural sciences geography Population estimate remote sensing Dasymetric map education 021101 geological & geomatics engineering 0105 earth and related environmental sciences geographic information systems education.field_of_study business.industry Settlement (structural) built areas Census gridded population distribution Regression lcsh:Z Computer Science Applications Random forest lcsh:Bibliography. Library science. Information resources Geography binary dasymetric regression business Cartography random forest Information Systems |
| Zdroj: | Data, Vol 3, Iss 3, p 33 (2018) Data |
| Popis: | The spatial distribution of humans on the earth is critical knowledge that informs many disciplines and is available in a spatially explicit manner through gridded population techniques. While many approaches exist to produce specialized gridded population maps, little has been done to explore how remotely sensed, built-area datasets might be used to dasymetrically constrain these estimates. This study presents the effectiveness of three different high-resolution built area datasets for producing gridded population estimates through the dasymetric disaggregation of census counts in Haiti, Malawi, Madagascar, Nepal, Rwanda, and Thailand. Modeling techniques include a binary dasymetric redistribution, a random forest with a dasymetric component, and a hybrid of the previous two. The relative merits of these approaches and the data are discussed with regards to studying human populations and related spatially explicit phenomena. Results showed that the accuracy of random forest and hybrid models was comparable in five of six countries. |
| Databáze: | OpenAIRE |
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