干旱区生态环境知识资源中心(Arid): COMPREHENSIVE VERIFICATION AND ANALYSIS OF MULTI-SCALE REMOTE SENSING PRODUCTS FOR SURFACE FREEZING-THAWING STATUS ON THE QINGHAI-TIBET PLATEAU

Arid

DOI	10.1109/IGARSS39084.2020.9324672
	COMPREHENSIVE VERIFICATION AND ANALYSIS OF MULTI-SCALE REMOTE SENSING PRODUCTS FOR SURFACE FREEZING-THAWING STATUS ON THE QINGHAI-TIBET PLATEAU
	Kou, Xiaokang; Jia, Zhaoyang; Yan, Shuang; Jin, Mengjie; Zhang, Yuzhi; Wang, Tianliang
通讯作者	Kou, XK (corresponding author), Shijiazhuang Tiedao Univ, Sch Civil Engn, Shijiazhuang 050043, Hebei, Peoples R China. ; Kou, XK (corresponding author), Shijiazhuang Tiedao Univ, Minist Educ, Key Lab Rd & Railway Engn Safety Control, Shijiazhuang 050043, Hebei, Peoples R China.
会议名称	IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
会议日期	SEP 26-OCT 02, 2020
会议地点	ELECTR NETWORK
英文摘要	The surface soil freezing and thawing (F/T) status plays important roles in water and energy exchanges, hydrology cycle and terrestrial ecosystem. Passive microwave remote sensing tends to be one of the most effective ways of monitoring global surface F/T status, due to its strong sensitivity to the changes of liquid water and its short revisiting period. Many surface F/T products have been produced based on the observations from different passive microwave sensors. However, due to the differences in spatial scales, satellite data sources, transit times etc., the accuracy and the consistency of different F/T products need to be well considered in front of the comprehensive utilization. In this study, the surface F/T products with resolutions of 36 km, 25 km, 25 km and 6 km derived from SMAP, SSMIS, AMSR-2, AMSR-2 (downscaling) were validated separately based on the in-situ observations in Ngari prefecture and Maqu on the Qinghai-Tibet Plateau. Then a comparison analysis was conducted on the F/T products derived from SMAP and SSMIS to figure out the consistency between F/T products derived from different sensors. The results show that: 1) the verification accuracy in Maqu is higher than that in Ngari prefecture, which reflects the limited capability of passive microwave in identifying the soil surface F/T status in the arid region. 2) The F/T products with resolutions of 6 km and 25 km, which were both derived from AMSR-2 and have the same transit time, showed similar validation accuracies. 3) There is a good agreement between the F/T products derived from SMAP and that from SSMIS. This study will be conducive to the comprehensive application of multi-scale F/T products in the fields of climate change and ecological environment.
英文关键词	Freeze-thaw products multi-scale passive microwave remote sensing
来源出版物	IGARSS 2020 - 2020 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
出版年	2020
页码	3086-3089
ISBN	978-1-7281-6374-1
出版者	IEEE
类型	Proceedings Paper
语种	英语
收录类别	CPCI-S
WOS记录号	WOS:000664335303021
WOS关键词	SATELLITE
WOS类目	Computer Science, Artificial Intelligence ; Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Optics
WOS研究方向	Computer Science ; Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Optics
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/365580
作者单位	[Kou, Xiaokang; Jia, Zhaoyang; Jin, Mengjie; Wang, Tianliang] Shijiazhuang Tiedao Univ, Sch Civil Engn, Shijiazhuang 050043, Hebei, Peoples R China; [Kou, Xiaokang; Wang, Tianliang] Shijiazhuang Tiedao Univ, Minist Educ, Key Lab Rd & Railway Engn Safety Control, Shijiazhuang 050043, Hebei, Peoples R China; [Yan, Shuang] Hebei Acad Sci, Hebei Engn Res Ctr Geog Informat Applicat, Inst Geog Sci, Shijiazhuang 050011, Hebei, Peoples R China; [Zhang, Yuzhi] Shijiazhuang Tiedao Univ, Key Lab Hlth Monitoring & Control Large Struct He, Shijiazhuang 050043, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Kou, Xiaokang,Jia, Zhaoyang,Yan, Shuang,et al. COMPREHENSIVE VERIFICATION AND ANALYSIS OF MULTI-SCALE REMOTE SENSING PRODUCTS FOR SURFACE FREEZING-THAWING STATUS ON THE QINGHAI-TIBET PLATEAU[C]:IEEE,2020:3086-3089.