Blar i forfatter "Liu, Meijie"

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    • A New Retracking Algorithm for Retrieving Sea Ice Freeboard from CryoSat-2 Radar Altimeter Data during Winter–Spring Transition 

      Shen, Xiaoyi; Similä, Markku H.; Dierking, Wolfgang Fritz Otto; Zhang, Xi; Ke, Changqing; Liu, Meijie; Wang, Manman (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-20)
      A new method called Bézier curve fitting (BCF) for approximating CryoSat-2 (CS-2) SAR-mode waveform is developed to optimize the retrieval of surface elevation of both sea ice and leads for the period of late winter/early spring. We found that the best results are achieved when the retracking points are fixed on positions at which the rise of the fitted Bézier curve reaches 70% of its peak in case ...