Gateway to Think Tanks
来源类型 | Article |
规范类型 | 其他 |
DOI | 10.5194/isprsarchives-XLI-B8-1371-2016 |
Towards consistent mapping of urban structure - global human settlement layer and local climate zones. | |
Bechtel B; Pesaresi M; See L; Mills G; Ching J; Alexander P J; Feddema J J; Florczyk A J | |
发表日期 | 2016 |
出处 | ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B8: 1371-1378 |
出版年 | 2016 |
语种 | 英语 |
摘要 | Although more than half of the Earth's population live in urban areas, we know remarkably little about most cities and what we do know is incomplete (lack of coverage) and inconsistent (varying definitions and scale). While there have been considerable advances in the derivation of a global urban mask using satellite information, the complexity of urban structures, the heterogeneity of materials, and the multiplicity of spectral properties have impeded the derivation of universal urban structural types (UST). Further, the variety of UST typologies severely limits the comparability of such studies and although a common and generic description of urban structures is an essential requirement for the universal mapping of urban structures, such a standard scheme is still lacking. More recently, there have been two developments in urban mapping that have the potential for providing a standard approach: the Local Climate Zone (LCZ) scheme (used by the World Urban Database and Access Portal Tools project) and the Global Human Settlement Layer (GHSL) methodology by JRC. In this paper the LCZ scheme and the GHSL LABEL product were compared for selected cities. The comparison between both datasets revealed a good agreement at city and coarse scale, while the contingency at pixel scale was limited due to the mismatch in grid resolution and typology. At a 1 km scale, built-up as well as open and compact classes showed very good agreement in terms of correlation coefficient and mean absolute distance, spatial pattern, and radial distribution as a function of distance from town, which indicates that a decomposition relevant for modelling applications could be derived from both. On the other hand, specific problems were found for both datasets, which are discussed along with their general advantages and disadvantages as a standard for UST classification in urban remote sensing. |
主题 | Ecosystems Services and Management (ESM) |
关键词 | Local Climate Zones, Global Human Settlement Layer, LULC, Urban Structure, Urban Systems. |
URL | http://pure.iiasa.ac.at/id/eprint/13962/ |
来源智库 | International Institute for Applied Systems Analysis (Austria) |
引用统计 | |
资源类型 | 智库出版物 |
条目标识符 | http://119.78.100.153/handle/2XGU8XDN/130598 |
推荐引用方式 GB/T 7714 | Bechtel B,Pesaresi M,See L,et al. Towards consistent mapping of urban structure - global human settlement layer and local climate zones.. 2016. |
条目包含的文件 | ||||||
文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
isprs-archives-XLI-B(9001KB) | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。