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Laser & Optoelectronics Progress, Volume. 57, Issue 13, 131408(2020)

Cloud Detection of Laser Altimetry Satellite ICESat-2 and the Related Algorithm

Jiaqi Yao1,2、*, Xinming Tang1,2、**, Guoyuan Li2,3, Bo Ai1, Xiongdan Yang2,3, and Dongping Xie2,3
Author Affiliations
  • 1College of Geomrtics, Shandong University of Science and Technology, Qingdao, Shandong 266590, China
  • 2Land Satellite Remote Sensing Application Center, Ministry of Natural Resources of China, Beijing 100048, China
  • 3School of Mapping and Geographical Science, Liaoning Technical University, Fuxin, Liaoning 123000, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (10)
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    References (25)
    Cited By (6)
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    Figures & Tables(10)
    Ground laser footprint distribution of laser payload on ICESat-2

    Fig. 1. Ground laser footprint distribution of laser payload on ICESat-2

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    Schematic of laser pulse folding

    Fig. 2. Schematic of laser pulse folding

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    Flow chart of ATL04 and ATL09 products

    Fig. 3. Flow chart of ATL04 and ATL09 products

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    Sketch maps of some data in GOME lunar surface albedo data set. (a) January; (b) July

    Fig. 4. Sketch maps of some data in GOME lunar surface albedo data set. (a) January; (b) July

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    Flow chart of making initial clear sky ASR data set

    Fig. 5. Flow chart of making initial clear sky ASR data set

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    Flow chart of final clear sky ASR data set production

    Fig. 6. Flow chart of final clear sky ASR data set production

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    Cloud detection flowchart based on ASR

    Fig. 7. Cloud detection flowchart based on ASR

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    • Table 1. Parameters of ICESat-2 satellite

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      Table 1. Parameters of ICESat-2 satellite

      ParameterValue
      SpacecraftICESat-2
      Launch vehicleDelta II
      Launch locationVandenberg Air Force Base, California
      Nominal duration of mission /a3
      Orbital altitude /km500
      Inclination /(°)92
      Orbit typeNon-solar synchronization
      Orbital period /d91
      Launch date2018-09-15
      Wavelength /nm532
      Number of laser beams6
      Laser repetition frequency / kHz10
      Laser spot diameter /m~17
      Laser pulse energy /mJStrong beam: 0.12; weak beam: 0.04
      Laser spot spacing /kmDirection of flight: 0.09Side direction(two strong beams or two weak beams): 3.3Side direction(between strong beam and weak beam): 2.5
      Laser altimetry accuracy /m0.1
      Data collection modeSingle photon counting

    • Table 2. Quality control parameters of cloud

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      Table 2. Quality control parameters of cloud

      PQuality controlparameterDescription
      (0.8,1]5Cloudy with high confidence
      (0.6,0.8]4Cloudy with medium confidence
      (0.4,0.6]3Cloudy with low confidence
      (0.2,0.4]2Clear with low confidence
      (0,0.2]1Clear with medium confidence
      00Clear with high confidence

    • Table 3. Total columnar optical thickness output in Column_OD_ASR_QF dataset

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      Table 3. Total columnar optical thickness output in Column_OD_ASR_QF dataset

      Surface typeColumn_OD_ASR_QF
      No surface signal0
      Land1
      Sea ice2
      Land ice(antarctica,greenland)3
      Water4
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    Jiaqi Yao, Xinming Tang, Guoyuan Li, Bo Ai, Xiongdan Yang, Dongping Xie. Cloud Detection of Laser Altimetry Satellite ICESat-2 and the Related Algorithm[J]. Laser & Optoelectronics Progress, 2020, 57(13): 131408

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Sep. 4, 2019

    Accepted: Nov. 6, 2019

    Published Online: Jul. 9, 2020

    The Author Email: Yao Jiaqi (ccstshz@163.com), Tang Xinming (ccstshz@163.com)

    DOI:10.3788/LOP57.131408

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology