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Patch-Based Local Climate Zones Mapping and Population Distribution Pattern in Provincial Capital Cities of China
| Content Provider | MDPI |
|---|---|
| Author | Zhou, Liang Ma, Lei Johnson, Brian Alan Yan, Ziyun Li, Feixue Li, Manchun |
| Copyright Year | 2022 |
| Description | Accurate urban morphology provided by Local Climate Zones (LCZ), a universal surface classification scheme, offers opportunities for studies of urban heat risk, urban ventilation, and transport planning. In recent years, researchers have attempted to generate LCZ maps worldwide with the World Urban Database and Access Portal Tools (WUDAPT). However, the accuracy of LCZ mapping is not satisfactory and cannot fulfill the quality demands of practical usage. Here, we constructed a high-quality sample dataset from Chinese cities and presented a patch-based classification framework that employs chessboard segmentation and multi-seasonal images for LCZ mapping. Compared with the latest WUDAPT method, the overall accuracy for all LCZ types (OA) and urban LCZ types $(OA_{u}$) of our framework increased by about 10% and 9%, respectively. Furthermore, based on the analysis of population distribution, we first gave the population density of different built-up LCZs of Chinese cities and found a hierarchical effect of population density among built-up LCZs in different size cities. In summary, this study could serve as a valuable reference for producing high-quality LCZ maps and understanding population distribution patterns in built-up LCZ types. |
| Starting Page | 420 |
| e-ISSN | 22209964 |
| DOI | 10.3390/ijgi11080420 |
| Journal | ISPRS International Journal of Geo-Information |
| Issue Number | 8 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-07-25 |
| Access Restriction | Open |
| Subject Keyword | ISPRS International Journal of Geo-Information Isprs International Journal of Geo-information Remote Sensing Local Climate Zones Patch-based Classification Multi-seasonal Images Wudapt Population Distribution Pattern Chinese Cities |
| Content Type | Text |
| Resource Type | Article |
