气候变化领域集成服务门户(CCPortal): A Comparison of Seven Medium Resolution Impervious Surface Products on the Qinghai-Tibet Plateau, China from a User's Perspective

CCPortal

DOI	10.3390/rs15092366
	A Comparison of Seven Medium Resolution Impervious Surface Products on the Qinghai-Tibet Plateau, China from a User's Perspective
	Zheng, Kaiyuan; He, Guojin; Yin, Ranyu; Wang, Guizhou; Long, Tengfei
发表日期	2023
EISSN	2072-4292
卷号	15 期号:9
英文摘要	As a vital land cover type, impervious surface directly reflects human activities and urbanization, significantly impacting the environment, climate, and biodiversity, especially in ecologically fragile areas such as the Qinghai-Tibet Plateau (QTP) in China. Thus, precise knowledge of impervious surface information on the QTP is essential for its ecological protection and social development. In order to improve the application of products and inform further studies, we assessed the accuracy of seven medium resolution (10-30 m) impervious surface products in the QTP, including GAIA, CISC, GlobalLand30 (GL30), GLC-FCS30 (FCS30), GHS-BUILT-S2 (GHSB), ESA WorldCover10 (WC10), and Dynamic World NRT products (DW). The validation set labeled according to domestic GF-1 images was used to calculate the precision, recall, and F1-Score of these products, and two impervious surface vote maps were generated to analyze their spatial consistency. The results showed that CISC and DW had the highest overall quality among the 30 m and 10 m products, with F1-Scores of 0.5701 and 0.5670, respectively. We also validated the accuracy of different data combinations and their intersection and union sets to provide guidance based on the results for data selection in impervious surface studies on the QTP. For results calculated by the strict validation set, which was exclusive of mixed grids, precision decreased slightly while recall increased significantly for all products, indicating that the omissions were mostly mixed pixels with a smaller percentage of impervious surface. In terms of spatial consistency, the maximum impervious surface range voted by the seven products jointly only accounts for 0.82% of the QTP, which is 2,786,800 km(2) in total. Additionally, the high consistency area (votes > 4), with a distribution concentrated in large cities and dense buildings, only accounts for 15.18% of this maximum range. In summary, each product's regional accuracy in the QTP was lower than their published accuracy, and they omitted many impervious surfaces, especially those with a background of bare land.
关键词	impervious surfaces regional validation spatial consistency Qinghai-Tibet Plateau
英文关键词	URBAN EXPANSION; ACCURACY; SYSTEM; AREA
WOS研究方向	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000988037300001
来源期刊	REMOTE SENSING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282859
作者单位	Chinese Academy of Sciences; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
推荐引用方式 GB/T 7714	Zheng, Kaiyuan,He, Guojin,Yin, Ranyu,et al. A Comparison of Seven Medium Resolution Impervious Surface Products on the Qinghai-Tibet Plateau, China from a User's Perspective[J],2023,15(9).
APA	Zheng, Kaiyuan,He, Guojin,Yin, Ranyu,Wang, Guizhou,&Long, Tengfei.(2023).A Comparison of Seven Medium Resolution Impervious Surface Products on the Qinghai-Tibet Plateau, China from a User's Perspective.REMOTE SENSING,15(9).
MLA	Zheng, Kaiyuan,et al."A Comparison of Seven Medium Resolution Impervious Surface Products on the Qinghai-Tibet Plateau, China from a User's Perspective".REMOTE SENSING 15.9(2023).