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Determination of tropical cyclone location and intensity using HY-2B scatterometer data
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Siqi Liu1, Wenming Lin1, *, Zhixiong Wang1, Shuyan Lang2, 3
Haiyang Xuebao | 2021, 43(11) : 146 - 156
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Haiyang Xuebao | 2021, 43(11): 146-156
• Article •
Determination of tropical cyclone location and intensity using HY-2B scatterometer data
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Siqi Liu1, Wenming Lin1, *, Zhixiong Wang1, Shuyan Lang2, 3
Affiliations
  • 1School of Marine Sciences, Nanjing University of Information Science and Technology, Nanjing 210044, China
  • 2National Satellite Ocean Application Service, Beijing 100081, China
  • 3Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
Published: 2021-11-25 doi: 10.12284/hyxb2021176
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Tropical cyclone disaster is one of the most serious natural disasters, and its impact mainly depends on the center location and the intensity. Monitoring the location and the intensity of tropical cyclones is of great significance for improving the accuracy of tropical cyclone forecast and for reducing the impact of tropical cyclone disasters. In this paper, the characteristics of the HY-2B scatterometer wind field, as well as its divergence and curl, are analyzed. It is found that the divergence or curl of the wind field near the cyclone center shows remarkable signatures, such that a new method is proposed to identify the cyclone center, and then the results are compared with the conventional method. Moreover, a method for estimating the size of the tropical cyclone is introduced to evaluate the cyclone intensity. Finally, the remote sensing data of Typhoon Francisco and Typhoon Bualoi are used to verify the proposed methods. The results show that the difference between the cyclone center position determined by the scatterometer and the one of the optimal path is generally less than 20 km. Meanwhile, the determined wind radii correspond well with the development of the tropical cyclone.

scatterometer  /  tropical cyclone  /  center locating  /  wind radii  /  HY-2B satellite
Siqi Liu, Wenming Lin, Zhixiong Wang, Shuyan Lang. Determination of tropical cyclone location and intensity using HY-2B scatterometer data[J]. Haiyang Xuebao, 2021 , 43 (11) : 146 -156 . DOI: 10.12284/hyxb2021176
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Year 2021 volume 43 Issue 11
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Article Info
doi: 10.12284/hyxb2021176
  • Receive Date：2021-02-15
  • Online Date：2026-02-26
  • Published：2021-11-25
Article Data
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History
  • Received：2021-02-15
  • Revised：2021-04-19
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Affiliations
    1School of Marine Sciences, Nanjing University of Information Science and Technology, Nanjing 210044, China
    2National Satellite Ocean Application Service, Beijing 100081, China
    3Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
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表12种不同金属材料的力学参数
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Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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