卫星雷达测高技术在水文监测中的发展：水位和流量估算

IF 4.1 3区地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY

Physics and Chemistry of the Earth Pub Date : 2025-07-26 DOI:10.1016/j.pce.2025.104039

Barun kumar , Rajarshi Bhattacharjee , Shyam Bihari Dwivedi , Shishir Gaur , Shard Chander , Anurag Ohri

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引用次数: 0

摘要

截至2025年，卫星雷达测高已经发展了32年，成为一种变革性的工具，极大地促进了对海洋学、冰川学和水文系统的认识。卫星测高已逐步改变了水文科学和可持续水资源管理，特别是在监测河段和流量方面。包括ENVISAT、Jason-2/3、CryoSat-2和开创性的地表水和海洋地形（SWOT）卫星在内的多个测高任务的可用性，使对全球水体的监测更加精确和改进。该综述探索了与统计模型相结合的多任务方法的数据，为水文参数提供了增强的时空洞察。通过结合低分辨率模式（LRM）和先进的合成孔径雷达（SAR）技术，这些任务克服了地形变化和河流形态等挑战，为不同河流系统提供可靠的水位评估。高程资料与曼宁方程、等级曲线等水文模型的结合，显著提高了河段-流量关系的准确性。这些方法的性能使用关键指标，如均方根误差（RMSE），纳什-苏特克利夫效率（NSE）和相关系数也进行了全面评估。此外，还着重介绍了雷达测高技术及其在水位、流量计算和洪水模拟中的作用。该研究通过对亚马逊河、密西西比河和雅鲁藏布江等主要河流的案例研究，证明了卫星测高在全球水文监测和资源管理方面日益重要。该研究最后讨论了卫星测高在灾害管理和改善对水文制度的了解方面的潜在应用。

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A review of the evolution of satellite radar altimetry for hydrological Monitoring: Water level and discharge estimation

As of 2025, satellite radar altimetry has evolved over 32 years into a transformative tool, significantly advancing the understanding of oceanographic, glaciological, and hydrological systems. Satellite altimetry has progressively transformed hydrological science and sustainable water resource management, particularly in monitoring river stage and discharge. The availability of multiple altimetry missions, including ENVISAT, Jason-2/3, CryoSat-2, and the groundbreaking Surface Water and Ocean Topography (SWOT) satellite, has enabled more accurate and improved monitoring of global water bodies. The review explores data from multi-mission approaches integrated with statistical models, providing enhanced spatio-temporal insights into the hydrological parameters. By incorporating both Low-Resolution Mode (LRM) and advanced Synthetic Aperture Radar (SAR) technologies, these missions have overcome challenges like topographic variation and river morphology, offering reliable water level assessments across diverse river systems. The combination of altimetric data with hydrological models like the Manning equation and rating curves has significantly improved the accuracy of river stage-discharge relationships. The performance of these methods using key metrics like Root Mean Square Error (RMSE), Nash-Sutcliffe Efficiency (NSE), and correlation coefficients has also been thoroughly evaluated. Moreover, the technical aspects of radar altimetry and its role in stage and discharge calculation and flood modeling have also been highlighted. The study demonstrates the growing significance of satellite altimetry in global hydrological monitoring and resource management by examining case studies from major rivers like the Amazon, Mississippi, and Brahmaputra. The study concludes by discussing the potential applications of satellite altimetry in disaster management and an improved understanding of hydrological regimes.

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来源期刊

Physics and Chemistry of the Earth 地学-地球科学综合

CiteScore

5.40

自引率

2.70%

发文量

176

审稿时长

31.6 weeks

期刊介绍： Physics and Chemistry of the Earth is an international interdisciplinary journal for the rapid publication of collections of refereed communications in separate thematic issues, either stemming from scientific meetings, or, especially compiled for the occasion. There is no restriction on the length of articles published in the journal. Physics and Chemistry of the Earth incorporates the separate Parts A, B and C which existed until the end of 2001. Please note: the Editors are unable to consider submissions that are not invited or linked to a thematic issue. Please do not submit unsolicited papers. The journal covers the following subject areas: -Solid Earth and Geodesy: (geology, geochemistry, tectonophysics, seismology, volcanology, palaeomagnetism and rock magnetism, electromagnetism and potential fields, marine and environmental geosciences as well as geodesy). -Hydrology, Oceans and Atmosphere: (hydrology and water resources research, engineering and management, oceanography and oceanic chemistry, shelf, sea, lake and river sciences, meteorology and atmospheric sciences incl. chemistry as well as climatology and glaciology). -Solar-Terrestrial and Planetary Science: (solar, heliospheric and solar-planetary sciences, geology, geophysics and atmospheric sciences of planets, satellites and small bodies as well as cosmochemistry and exobiology).