气候变化领域集成服务门户(CCPortal): Satellite scatterometer estimation of urban built-up volume: Validation with airborne lidar data

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DOI	10.1016/j.jag.2019.01.004
	Satellite scatterometer estimation of urban built-up volume: Validation with airborne lidar data
	Mathews A.J.; Frazier A.E.; Nghiem S.V.; Neumann G.; Zhao Y.
发表日期	2019
ISSN	15698432
起始页码	100
结束页码	107
卷号	77
英文摘要	Accurately mapping urban infrastructure and extent is a high priority for resource management and service allocation as well as for addressing environmental, socioeconomic, and geopolitical concerns. Most available data products only document surficial (two-dimensional) land use and land cover (LULC), yet a substantial component of urban growth occurs in the vertical dimension. Light detection and ranging (lidar) data offer the potential for monitoring three-dimensional (3D) change, but the extreme lack of systematic lidar coverage worldwide inflicts considerable gaps in both spatial and temporal coverage. Satellite scatterometer (radar) data may serve as an alternative data source for characterizing urban growth and development in both the horizontal and vertical directions. The accuracy of these radar-based datasets for estimating building volumes remains to be validated quantitatively. For nine U.S. cities, we test whether scatterometer data can be used to estimate 3D urban built-up volume. We found strong, linear correlations between the lidar-derived and radar-derived building volume estimates for all cities with r 2 values as high as 0.98 when using spatial trend analysis. Given the high expense that limits lidar data acquisition to small areas at sporadic points in time, satellite scatterometer data provide a breakthrough method for monitoring both vertical growth and horizontal expansion of cities across the world with a continuous decadal time scale. © 2019 Elsevier B.V.
英文关键词	Built-up volume; Dense sampling method; Land cover; Land use; Lidar; Radar
语种	英语
scopus关键词	building; decadal variation; land cover; land use; lidar; model validation; sampling; satellite data; scatterometer; urban growth; vertical distribution; United States
来源期刊	International Journal of Applied Earth Observation and Geoinformation
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156506
作者单位	Department of Geography, Western Michigan University, Kalamazoo, MI, United States; School of Geographical Sciences and Urban Planning, Arizona State University, Tempe, AZ, United States; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Department of Environmental Studies, University of Illinois at Springfield, Springfield, IL, United States
推荐引用方式 GB/T 7714	Mathews A.J.,Frazier A.E.,Nghiem S.V.,et al. Satellite scatterometer estimation of urban built-up volume: Validation with airborne lidar data[J],2019,77.
APA	Mathews A.J.,Frazier A.E.,Nghiem S.V.,Neumann G.,&Zhao Y..(2019).Satellite scatterometer estimation of urban built-up volume: Validation with airborne lidar data.International Journal of Applied Earth Observation and Geoinformation,77.
MLA	Mathews A.J.,et al."Satellite scatterometer estimation of urban built-up volume: Validation with airborne lidar data".International Journal of Applied Earth Observation and Geoinformation 77(2019).