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The Changes of Lake Water Level on the Qinghai-Xizang Plateau Obtained by Combining Multi-Source Satellite Altimetry Data
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Haotian SONG1, Hanjiang WEN2, 3, 4, Ying GUO5, Huanling LIU2, 3, 4, Xi YANG6, Xinwei LUO1
Journal of Geodesy and Geodynamics | 2025, 45(1) : 22 - 28, 35
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Journal of Geodesy and Geodynamics | 2025, 45(1): 22-28, 35
The Changes of Lake Water Level on the Qinghai-Xizang Plateau Obtained by Combining Multi-Source Satellite Altimetry Data
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Haotian SONG1, Hanjiang WEN2, 3, 4, Ying GUO5, Huanling LIU2, 3, 4, Xi YANG6, Xinwei LUO1
Affiliations
  • 1 China Nuclear Industry Survey Design and Research Co Ltd, 74 Nongye Road, Zhengzhou 450003, China
  • 2 Chinese Academy of Surveying and Mapping, 28 West-Lianhuachi Road, Beijing 100036, China
  • 3 Beijing Fangshan Satellite Laser Ranging National Observation and Research Station, Longmenkou Village, Beijing 100036, China
  • 4 Key Laboratory of Surveying and Mapping Science and Geospatial Information Technology, MNR, 28 West-Lianhuachi Road, Beijing 100036, China
  • 5 College of Geodesy and Geomatics, Shandong University of Science and Technology, 579 Qianwangang Road, Qingdao 266590, China
  • 6 The Second Geodetic Survey Team, MNR, 2 Tiesan Street, Harbin 150086, China

    • SONG Haotian, assistant engineer, majors in spatial geodetic data processing and application, E-mail:

About Author:

SONG Haotian, assistant engineer, majors in spatial geodetic data processing and application, E-mail:

Published: 2025-01-15 doi: 10.14075/j.jgg.2024.02.072
Outline
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The water level change series of lakes in the Qinghai-Xizang plateau from 2003 to 2022 are extracted using the data of ICESat, Cryosat-2 and ICESat-2. Taking Qinghai lake as an example, the three retracking algorithms of Cryosat-2 LRM(Ocean-CFI, UCL Land-ice and OCOG) are compared and analyzed, and the results show that OCOG algorithm is the best. The accuracy of the time series of lake water level changes extracted from satellite altimetry data is evaluated by using the hydrological station data of Qinghai lake, Nam Co, Mêmar Co and Lumaqangdong Co, and the results show that the RMS of the difference between the water level change time series of Qinghai lake and the measured results of Xiashe station is only 0.092 m, and the correlation coefficient between the water level change time series and the measured results of Nam Co is 0.989, and the accuracy analysis of different measurement techniques in the same time period shows that the accuracy of the Cryosat-2 SARIn measurement mode is slightly higher than that of ICESat-2. The water level changes of 106 lakes in the Qinghai-Xizang plateau from 2003 to 2022 are extracted, and the water level change trend is analyzed, and the results show that the water level of 19 of the 106 lakes show a downward trend, and the water level of 83 lakes show an upward trend.

multi-source remote sensing data  /  satellite altimetry  /  Qinghai-Xizang plateau  /  changes of lake water level
宋昊天, 文汉江, 郭英, 刘焕玲, 杨熙, 骆新伟. 联合多源卫星测高数据获取青藏高原湖泊水位变化. 大地测量与地球动力学, 2025 , 45 (1) : 22 -28, 35 . DOI: 10.14075/j.jgg.2024.02.072
Haotian SONG, Hanjiang WEN, Ying GUO, Huanling LIU, Xi YANG, Xinwei LUO. The Changes of Lake Water Level on the Qinghai-Xizang Plateau Obtained by Combining Multi-Source Satellite Altimetry Data[J]. Journal of Geodesy and Geodynamics, 2025 , 45 (1) : 22 -28, 35 . DOI: 10.14075/j.jgg.2024.02.072
Funding
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  • Open Fund of Wuhan Gravitation and Solid Earth Tides, National Observation and Research Station(WHYWZ202213)
Appendix
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Year 2025 volume 45 Issue 1
19
7
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Article Info
doi: 10.14075/j.jgg.2024.02.072
  • Receive Date：2024-02-20
  • Online Date：2026-10-30
  • Published：2025-01-15
Article Data
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History
  • Received：2024-02-20
Funding
Open Fund of Wuhan Gravitation and Solid Earth Tides, National Observation and Research Station(WHYWZ202213)
Affiliations
    1 China Nuclear Industry Survey Design and Research Co Ltd, 74 Nongye Road, Zhengzhou 450003, China
    2 Chinese Academy of Surveying and Mapping, 28 West-Lianhuachi Road, Beijing 100036, China
    3 Beijing Fangshan Satellite Laser Ranging National Observation and Research Station, Longmenkou Village, Beijing 100036, China
    4 Key Laboratory of Surveying and Mapping Science and Geospatial Information Technology, MNR, 28 West-Lianhuachi Road, Beijing 100036, China
    5 College of Geodesy and Geomatics, Shandong University of Science and Technology, 579 Qianwangang Road, Qingdao 266590, China
    6 The Second Geodetic Survey Team, MNR, 2 Tiesan Street, Harbin 150086, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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Genus		 种数
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Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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