前の章|次の章

青海省湖岸斜面GF-7 DSM標高精度検証と影響要因分析

  • role： First author第一作者
  • Affiliation：

    Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China

    Key Laboratory of River Basin Digital Twinning of Ministry of Water Resources, Beijing 100038, China

  • Email：2640725634@qq.com
  • Introduction：张怀文，研究方向为水资源遥感。E-mail： 2640725634@qq.com
ZHANG Huaiwen12,  
  • role： Corresponding author通信作者
  • Affiliation：

    Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China

    Key Laboratory of River Basin Digital Twinning of Ministry of Water Resources, Beijing 100038, China

  • Email：caoyin@iwhr.com
  • Introduction：曹引，研究方向为水资源遥感。E-mail： caoyin@iwhr.com
CAO Yin12*,  
  • Affiliation：

    Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China

    Key Laboratory of River Basin Digital Twinning of Ministry of Water Resources, Beijing 100038, China

ZHAO Hongli12,  
  • Affiliation：

    Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China

    Key Laboratory of River Basin Digital Twinning of Ministry of Water Resources, Beijing 100038, China

JIANG Yunzhong12,  
  • Affiliation：

    Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China

    College of Hydrology and Water Resources, Hohai University, Nanjing 210024, China

ZHAO Huizi13,  
  • Affiliation：

    Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China

    School of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China

WANG Rong14,  
  • Affiliation：

    Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China

    Key Laboratory of River Basin Digital Twinning of Ministry of Water Resources, Beijing 100038, China

XU Haowei12

サマリー

高分七号衛星（GF-7）は湖岸の斜面地形データ（DSM）を取得でき、地上観測なしの湖沼蓄水量変動のリモートセンシング監視に応用可能性があります。しかし、湖沼の地形は複雑であり、GF-7 DSMの標高精度および影響要因の定量化は、GF-7 DSMに基づく湖沼蓄水量変動リモートセンシング監視の実施に重要です。湖岸斜面GF-7 DSMの標高精度を検証するため、青海省の9つの湖沼斜面の高精度実測地形データに基づき、標高精度、安定性および標高相対精度の主な影響要因を分析しました。結果は湖岸斜面GF-7 DSMに系統誤差が存在し、標高の絶対精度は低く、顕著な地形相関性があるものの、標高の相対精度は高いことを示しました。標高差の絶対誤差は全体で1.7m未満であり、勾配が15°未満のときは絶対誤差が1.5m未満で、勾配増加に伴い精度は低下しました。実測標高を用いたGF-7 DSMの補正により、標高の絶対精度が大幅に向上し、標高誤差全体が0.85m未満、最大中間標高誤差が1.4m未満、標高相対精度は全体で1.25m未満、最大誤差は1.6m未満となり、補正後の湖岸斜面GF-7 DSMは明確な地形相関性がありません。GF-7 DSM標高相対精度は基準点の勾配および勾配変化の共同影響を受け、勾配変化が主要因で、両者の重みはそれぞれ0.019と0.047です。同一地点の異なる時相のGF-7 DSM間には極めて強い相関があり、R2は0.98を超え、相対補正により異時相GF-7 DSMの系統誤差を大幅に低減でき、複数のGF-7 DSMをスティッチ融合することで大規模湖沼の蓄水量変化のリモートセンシング監視に利用可能となり、地上観測なしの湖沼蓄水量変動のリモートセンシングに大きな応用可能性があります。

キーワード

GF-7 DSM;精度検証;地形相関性;影響要因;青海省;実測地形;湖岸斜面

References

  1. 1.
    Cao H Y, Zhang X W, Zhao C G, Xu C, Mo F and Dai J. 2020. System design and key technologies of the GF-7 satellite. Chinese Space Science and Technology, 40(5): 1-9
  2. 2.
    Editorial Department of this Magazine. 2013. Bulletin of first national census for water. Water Resources Informatization, 2: 64
  3. 3.
    Gao X, Tang X, Zhang G and Zhu X. 2013. The geometric accuracy validation of the ZY-3 mapping satellite. International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 40: 111-115
  4. 4.
    He F, Liu Z F and Yao Z J. 2020. Evaluation of the monitoring accuracy of lake water level by the Jason-2 altimeter satellite. Journal of Geo-information Science, 22(3): 494-504
  5. 5.
    Jiang L G, Nielsen K, Andersen O B and Bauer-Gottwein P. 2017. Monitoring recent lake level variations on the Tibetan Plateau using CryoSat-2 SARIn mode data. Journal of Hydrology, 544: 109-124
  6. 6.
    Li G Y, Tang X M, Gao X M, Wang H B and Wang Y. 2016a. ZY‐3 Block adjustment supported by glas laser altimetry data. The Photogrammetric Record, 31(153): 88-107
  7. 7.
    Li G Y, Tang X M, Gao X M, Zhang C Y and Li T. 2016b. Improve the ZY-3 height accuracy using ICESat/GLAS laser altimeter data. The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 41: 37-42
  8. 8.
    Lu S N, Huang S C, Pan Z Q, Deng H W, Stanley D and Xin Y B. 2016. High performance computing for DSM extraction from ZY-3 tri-stereo imagery. ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 3: 113-120
  9. 9.
    Pan H B, Zhang G, Tang X M, Wang X, Zhou P, Xu M Z and Li D R. 2013. Accuracy analysis and verification of ZY-3 products. Acta Geodaetica et Cartographica Sinica, 42(5): 738-744, 751
  10. 10.
    Song C Q, Huang B and Ke L H. 2013. Modeling and analysis of lake water storage changes on the Tibetan Plateau using multi-mission satellite data. Remote Sensing of Environment, 135: 25-35
  11. 11.
    Song C Q, Zhan P F and Ma R H. 2020. Progress in remote sensing study on lake hydrologic regime. Journal of Lake Sciences, 32(5): 1406-1420
  12. 12.
    Sun C, Chu Q F and Wu J X. 2022. Accuracy verification of 1: 10000 scale stereo mapping of GF-7 satellite: a case study of northeast China. Geomatics and Spatial Information Technology, 45(S1): 124-126, 129, 132
  13. 13.
    Tang X M and Hu F. 2018. Development status and trend of satellite mapping. Spacecraft Recovery and Remote Sensing, 39(4): 26-35
  14. 14.
    Tang X M, Liu C R, Zhang H, Wang X, Li G Y, Mo F and Li F X. 2021. GF-7 satellite stereo images block adjustment assisted with laser altimetry data. Geomatics and Information Science of Wuhan University, 46(10): 1423-1430
  15. 15.
    Tang X M, Zhang G, Zhu X Y, Pan H B, Jiang Y H, Zhou P, Wang X and Guo L. 2012. Triple linear-array imaging geometry model of Ziyuan-3 surveying satellite and its validation. Acta Geodaetica et Cartographica Sinica, 41(2): 191-198
  16. 16.
    Tang X M, Zhou P, Zhang G, Wang X, Jiang Y H, Guo L and Liu S H. 2015. Verification of ZY-3 satellite imagery geometric accuracy without ground control points. IEEE Geoscience and Remote Sensing Letters, 12(10): 2100-2104
  17. 17.
    Uuemaa E, Ahi S, Montibeller B, Muru M and Kmoch A. 2020. Vertical accuracy of freely available global digital elevation models (ASTER, AW3D30, MERIT, TanDEM-X, SRTM, and NASADEM). Remote Sensing, 12(21): 3482
  18. 18.
    Wang S M and Dou H S. 1998. Chinese Lake Catalogue. Beijing: Science Press
  19. 19.
    Wu Y H, Li M R, Guo L N, Zheng H X and Zhang H Y. 2019. Investigating water variation of lakes in Tibetan Plateau using remote sensed data over the past 20 years. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 12(7): 2557-2564
  20. 20.
    Yu J N, Liu K, Zhang B Y, Huang Y, Fan C Y, Song C J and Tang G A. 2021. Vertical accuracy assessment and applicability analysis of TanDEM-X 90 m DEM in China. Journal of Geo-information Science, 23(4): 646-657
  21. 21.
    Zhang R K. 2018. Reservoir area monitoring and change rectification based on remote sensing technology. Standardization of Surveying and Mapping, 34(2): 44-48
  22. 22.
    Zhang W S and Song C Q. 2022. Spatial distribution and dynamics of lakes in China: progress in remote sensing monitoring at national scale and new inventory of the maximum lake extent and change trajectory. National Remote Sensing Bulletin, 26(1): 92-103
  23. 23.
    Zhao W P, Liu Y, Wu X C, Jiao P T and Zhang X P. 2022. Accuracy verification of the scale of 1: 10000 stereo mapping based on GaoFen-7 satellite image. Science of Surveying and Mapping, 47(1): 165-171, 180
  24. 24.
    Zhao Y, Liao J J, Shen G Z and Zhang X L. 2017. Monitoring the water level changes in Qinghai Lake with satellite altimetry data. Journal of Remote Sensing (in Chinese), 21(4): 633-644

続きを読む

The above content is generated by Large Model Translation. The translated content is for reference only. We do not assume any commercial or legal responsibilty for any consequences arising from the use of our website