Satellite altimetry;
Water level;
Water surface slope;
Mountain river;
Lidar photon denoising;
ALTIMETRY;
LAKES;
D O I:
10.1016/j.jhydrol.2024.131576
中图分类号:
TU [建筑科学];
学科分类号:
0813 ;
摘要:
Satellite altimetry has become a crucial alternative for measuring inland water surface elevations apart from ground observations. Water surface slope (WSS), a fundamental parameter in river discharge simulation, also allowing for assimilating satellite and ground-observed water level data with different observation positions. There are various satellite data products offering precise measurements of river water levels and estimates of WSS on a global scale. However, satellites observation of water surface over small rivers, particularly those in mountainous areas with narrow river channels, continues to be difficult. This study focuses on evaluating the precision of the ICESat-2 ATL03 photon height data in estimating WSS throughout the mountainous river section of Yongding River, which flows across the Hebei Province and Beijing City in northern China. The ICESat-2 ATL03 data with minimum along-track sampling interval of 0.7 m makes it possible to accurately estimate the WSS for small river sections that ranged from 50 to 100 m in width. A histogram-based statistical approach was used for identifying the satellite lidar photon height located right over the water surface. The eleven pairs of satellite virtual stations selected for extracting river water surface elevation and estimating river WSS demonstrated an overall validation correlation coefficient of 0.98. The range of relative error in WSS estimation is between 0.13 % and 9.02 %. The results of this work have important implications for using satellite-based measurements to estimate critical hydrological parameters in small and mountainous river basins in the absence of ground observations.
机构:
Univ Tokyo, Inst Ind Sci, 4-6-1 Komaba,Meguro ku, Tokyo 1530063, JapanPSL, Observ Paris, Lab Etud Rayonnement & Matiere Astrophys & Atmosph, 61 Av Observ, F-75014 Paris, France
Yamazaki, Dai
Zhou, Xudong
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机构:
Univ Tokyo, Inst Ind Sci, 4-6-1 Komaba,Meguro ku, Tokyo 1530063, JapanPSL, Observ Paris, Lab Etud Rayonnement & Matiere Astrophys & Atmosph, 61 Av Observ, F-75014 Paris, France
Zhou, Xudong
Paris, Adrien
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机构:
HYDRO MATTERS, 1 Chemin Pousaraque, F-31460 Toulouse, Le Faget, FrancePSL, Observ Paris, Lab Etud Rayonnement & Matiere Astrophys & Atmosph, 61 Av Observ, F-75014 Paris, France
机构:
Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China
CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
Univ Chinese Acad Sci, Beijing, Peoples R China
Arba Minch Univ, Fac Meteorol & Hydrol, Water Technol Inst, Arba Minch, EthiopiaChinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China
Kebede, Mulugeta Genanu
Wang, Lei
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机构:
Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China
CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
Univ Chinese Acad Sci, Beijing, Peoples R ChinaChinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China
Wang, Lei
Li, Xiuping
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机构:
Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China
CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R ChinaChinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China
Li, Xiuping
Hu, Zhidan
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机构:
Minist Water Resources, Informat Ctr, Beijing, Peoples R ChinaChinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China
机构:
Univ Colorado, Colorado Ctr Astrodynam Res, Boulder, CO 80309 USAUniv Colorado, Colorado Ctr Astrodynam Res, Boulder, CO 80309 USA
Hamlington, B. D.
Leben, R. R.
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机构:
Univ Colorado, Colorado Ctr Astrodynam Res, Boulder, CO 80309 USAUniv Colorado, Colorado Ctr Astrodynam Res, Boulder, CO 80309 USA
Leben, R. R.
Godin, O. A.
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机构:
Cooperat Inst Res Environm Sci, Boulder, CO USA
NOAA, Earth Syst Res Lab, Boulder, CO USAUniv Colorado, Colorado Ctr Astrodynam Res, Boulder, CO 80309 USA
Godin, O. A.
Irisov, V. G.
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机构:
Cooperat Inst Res Environm Sci, Boulder, CO USAUniv Colorado, Colorado Ctr Astrodynam Res, Boulder, CO 80309 USA
Irisov, V. G.
2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM,
2010,
: 3035
-
3038
机构:
Sun Yat Sen Univ, Sch Civil Engn, Guangzhou 510275, Peoples R ChinaSun Yat Sen Univ, Sch Civil Engn, Guangzhou 510275, Peoples R China
Wang, Qi
Wang, Hailong
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机构:
Sun Yat Sen Univ, Sch Civil Engn, Guangzhou 510275, Peoples R China
Sun Yat Sen Univ, Ctr Water Resources & Environm Res, Guangzhou 510275, Peoples R ChinaSun Yat Sen Univ, Sch Civil Engn, Guangzhou 510275, Peoples R China