Tingting Qin, Tong Jia, Qian Feng, Xiaoming Li. Sea surface wind speed retrieval from Sentinel-1 HH polarization data using conventional and neural network methods[J]. Acta Oceanologica Sinica, 2021, 40(1): 13-21. doi: 10.1007/s13131-020-1682-1
Citation: ZOU Juhong, LIN Mingsen, ZOU Bin, GUO Maohua, ZHANG Yi. A routine operational backscattering coefficient regrouping algorithm for a HY-2A scatterometer[J]. Acta Oceanologica Sinica, 2018, 37(3): 111-116. doi: 10.1007/s13131-018-1204-6

A routine operational backscattering coefficient regrouping algorithm for a HY-2A scatterometer

doi: 10.1007/s13131-018-1204-6
  • Received Date: 2017-03-24
  • The routine operational sigma0 regrouping method is proposed for a HY-2A scatterometer (HSCAT) that maps time-ordered sigma0s and related parameters into a subtrack aligned grid of wind vector cells (WVCs). The regrouping method consists of two critical steps: ground grid generation and sigma0 resampling. The HSCAT uses subtrack swath coordinates, in which the nadir track of the satellite represents the center and the designated positions are specified in terms of a pair of along-track and cross-track coordinates. To calculate the subtrack coordinates for each sigma0, a “triangle marking” resampling method is developed. Three points, including the point of intersection, the center of a pulse footprint, and the origin of the subtrack coordinate system, form a right triangle; the length of the two right-angled sides is used to represent the cross-track and the along-track coordinates in the subtrack coordinate system. In addition, a nadir point interpolation correction is used to ensure the operation of the regrouping algorithm when the nadir point positional information is missing. To illustrate the ability of the proposed regrouping algorithm, the distribution of the WVC positions and wind vector retrieval results are analyzed, which show that the proposed regrouping algorithm meets the requirements for high-quality sea surface wind field retrieval.
  • Dunbar R S, Hsiao S V, Kim Y J. 2001. Science algorithm specification for SeaWinds on QuikSCAT and SeaWinds on ADEOS-Ⅱ. Pasadena, California: Jet Propulsion Laboratory, 209-239
    EUMETSAT. 2015. ASCAT Product Guide. EUM/OPS-EPS/MAN/04/0028, Eumetsat-Allee 1, D-64295 Darmstadt. Germany: EUMETSAT, 31
    Lecomte P. 1998. ERS scatterometer instrument and the on-ground processing of its data. In: Proceedings of a Joint ESA-Eumetsat Workshop on Emerging Scatterometer Applications-From Research to Operations. The Netherlands: ESTEC
    Naderi F M, Freilich M H, Long D G. 1991. Spaceborne radar measurement of wind velocity over the ocean-An overview of the NSCAT scatterometer system. Proceedings of the IEEE, 79(6): 850-866
    Stoffelen A, de Vries J, Voorrips A. 2001. Towards the real-time use of QuikSCAT winds. Project Report. de Bilt, the Netherlands: KNMI
    Verhoef A, Portabella M, Stoffelen A. 2012. High-resolution ASCAT scatterometer winds near the coast. IEEE Transactions on Geoscience and Remote Sensing, 50(7): 2481-2487
    Vogelzang J. 2007. Two dimensional variational ambiguity removal (2DVAR). NWP SAF NWPSAF-KN-TR-004. http://www.eumetsat.int [2013-09-20/2015-01-01]
    Vogelzang J, Stoffelen A, Verhoef A, et al. 2011. On the quality of high-resolution scatterometer winds. Journal of Geophysical Research, 116(C10): C10033, doi: 10.1029/2010JC006640
    Zhang Yunhua, Jiang Jingshan, Zhang Xiangkun, et al. 2005. SZ-4 scatterometer mode of multimode microwave sensors (CNSCAT/M3RS). Remote Sensing Technology and Application (in Chinese), 20(1): 58-63
    Zou Juhong, Xie Xuetong, Zhang Yi, et al. 2014. Wind retrieval processing for HY-2A microwave scatterometer. In: 2014 IEEE International Geoscience and Remote Sensing Symposium (IGARSS). Quebec City, QC: IEEE, 5160-5163
  • Relative Articles

  • Cited by

    Periodical cited type(6)

    1. Y Gu, S Lin, Y Mo, et al. Niche features and assembly mechanisms of microeukaryotic generalists and specialists along a north-south gradient of a subtropical coastal sea. Marine Ecology Progress Series, 2024, 742: 35. doi:10.3354/meps14647
    2. Bowen Zhu, Zhigang Zeng, Fan Sun. Multiscale ocean dynamics control the sedimentary source-to-sink processes in the southwestern Okinawa Trough (East China Sea). Marine Geology, 2024, 471: 107285. doi:10.1016/j.margeo.2024.107285
    3. Lujie Xiong, Yanping Jiao, Fengwei Wang, et al. Spatial–Temporal Variations in Regional Sea Level Change in the South China Sea over the Altimeter Era. Journal of Marine Science and Engineering, 2023, 11(12): 2360. doi:10.3390/jmse11122360
    4. Zhiyuan Hu, Jia Zhu, Longqi Yang, et al. Fuzzy cluster analysis of water mass in the western Taiwan Strait in spring 2019. Acta Oceanologica Sinica, 2023, 42(12): 1. doi:10.1007/s13131-023-2286-3
    5. Corinne B. Trott, E. Joseph Metzger, Zhitao Yu. Investigating mesoscale eddy characteristics in the Luzon Strait region using altimetry. Ocean Dynamics, 2021, 71(6-7): 679. doi:10.1007/s10236-021-01460-1
    6. Kentaro Ando, Xiaopei Lin, Cesar Villanoy, et al. Half-Century of Scientific Advancements Since the Cooperative Study of the Kuroshio and Adjacent Regions (CSK) Programme - Need for a new Kuroshio Research. Progress in Oceanography, 2021, 193: 102513. doi:10.1016/j.pocean.2021.102513

    Other cited types(0)

  • Created with Highcharts 5.0.7Amount of accessChart context menuAbstract Views, HTML Views, PDF Downloads StatisticsAbstract ViewsHTML ViewsPDF Downloads2024-052024-062024-072024-082024-092024-102024-112024-122025-012025-022025-032025-0402.557.51012.515
    Created with Highcharts 5.0.7Chart context menuAccess Class DistributionFULLTEXT: 29.8 %FULLTEXT: 29.8 %META: 66.5 %META: 66.5 %PDF: 3.7 %PDF: 3.7 %FULLTEXTMETAPDF
    Created with Highcharts 5.0.7Chart context menuAccess Area Distribution其他: 1.7 %其他: 1.7 %Brazil: 1.0 %Brazil: 1.0 %China: 43.4 %China: 43.4 %India: 1.0 %India: 1.0 %Peru: 0.7 %Peru: 0.7 %Russian Federation: 7.2 %Russian Federation: 7.2 %Sweden: 0.7 %Sweden: 0.7 %Switzerland: 0.7 %Switzerland: 0.7 %Thailand: 0.7 %Thailand: 0.7 %United Kingdom: 2.0 %United Kingdom: 2.0 %United States: 40.7 %United States: 40.7 %其他BrazilChinaIndiaPeruRussian FederationSwedenSwitzerlandThailandUnited KingdomUnited States

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (877) PDF downloads(875) Cited by(6)
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return