Scholarlink

<p>SARAL/AltiKa, the world’s first Ka-band altimeter, marks a significant technological advancement through the collaboration of the Indian Space Research Organization (ISRO) and the Centre National d’Etudes Spatiales (CNES). Launched on February 25, 2013, SARAL/AltiKa has made pivotal contributions to climate research and ocean monitoring, despite facing operational challenges such as orbit shifts in 2016 and the onset of the mispointing phase (MP) in 2019. This review highlights the broad spectrum of applications enabled by SARAL/AltiKa, particularly in India, from geodetic studies and coastal current analysis to oil spill tracking and wave model assimilation. An analysis of data from the MP phase (cycles 160–180) confirms the satellite’s continued ability to provide reliable geophysical measurements, further validated against merged altimeter products. SARAL/AltiKa’s significant contributions to operational oceanography and weather forecasting in India underscore its enduring scientific and practical impact.</p>

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SARAL/AltiKa–An Unprecedented Journey for Monitoring Global Sea Levels and Serving Ocean Applications

  • 期刊论文

  • 发表日期：

    2025年6月16日

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  • Suchandra A. Bhowmick,
  • Aditya Chaudhary,
  • M. Seemanth,
  • Smitha Ratheesh,
  • K. M. Sreejith,
  • V. P. Krishna,
  • P. G. Remya,
  • Imranali M. Momin,
  • Honey Gupta,
  • J. V. Thomas,
  • Neeraj Agarwal,
  • Rashmi Sharma,
  • Raj Kumar

摘要

SARAL/AltiKa, the world’s first Ka-band altimeter, marks a significant technological advancement through the collaboration of the Indian Space Research Organization (ISRO) and the Centre National d’Etudes Spatiales (CNES). Launched on February 25, 2013, SARAL/AltiKa has made pivotal contributions to climate research and ocean monitoring, despite facing operational challenges such as orbit shifts in 2016 and the onset of the mispointing phase (MP) in 2019. This review highlights the broad spectrum of applications enabled by SARAL/AltiKa, particularly in India, from geodetic studies and coastal current analysis to oil spill tracking and wave model assimilation. An analysis of data from the MP phase (cycles 160–180) confirms the satellite’s continued ability to provide reliable geophysical measurements, further validated against merged altimeter products. SARAL/AltiKa’s significant contributions to operational oceanography and weather forecasting in India underscore its enduring scientific and practical impact.