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Multi-frequency variability and mechanism of intra-seasonal sea surface height in the Sulawesi Sea
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Zhibang Mao1, 2, 3, Lu Wang1, 4, Junyi Li1, 2, 3, Lingling Xie1, 2, 3, *, Quanan Zheng5
Haiyang Xuebao | 2024, 46(2) : 14 - 27
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Haiyang Xuebao | 2024, 46(2): 14-27
• Article •
Multi-frequency variability and mechanism of intra-seasonal sea surface height in the Sulawesi Sea
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Zhibang Mao1, 2, 3, Lu Wang1, 4, Junyi Li1, 2, 3, Lingling Xie1, 2, 3, *, Quanan Zheng5
Affiliations
  • 1. College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang 524088, China
  • 2. Key Laboratory of Climate, Resources and Environment of Guangdong Higher Education Institutions on the Shelf and in the Deep Ocean, Zhanjiang 524088, China
  • 3. Key Laboratory of Space Ocean Remote Sensing and Application, Ministry of Natural Resources, Beijing 100081, China
  • 4. Department of Navigation, Naval Petty Officer Academy, Bengbu 233012, China
  • 5. Department of Atmospheric and Ocean Sciences, University of Maryland, College Park 20742, USA
Published: 2024-02-29 doi: 10.12284/hyxb2024001
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Based on the satellite altimeter observation data from 1993 to 2022, this paper analyzes the temporal and spatial characteristics of the multi frequency seasonal variation signal of sea surface height in the Sulawesi sea, and gives the dynamic interpretation by using Rossby standard mode theory. The spectral analysis shows that there is a strong intra-seasonal signal of 30–90 days in the sea surface height variation of Sulawesi sea, and its average power spectral density is 13 times of the average power spectral density of the signal in half a year. These seasonal signals have discrete and discontinuous spectral peak periods, and the peaks of 54.0 d and 64.4 d are the largest, which are 28 times and 23 times of the signal of 30–90 days, respectively. The theoretical analysis shows that the existence of Rossby standard modes in the nearly closed Sulawesi deep-sea basin. The seasonal variation observed by satellite altimeter is consistent with the two-dimensional spatial structure evolution, period and westward propagation velocity of Rossby standard mode results, the superposition of Rossby standard mode solutions presents a variance distribution similar to the sea surface height variation field. This shows that the inherent oscillation of Sulawesi Sea basin is one of the important mechanisms that contribute to its intra-seasonal variation.

Sulawesi Sea  /  multi-frequency intra-seasonal variation  /  spatiotemporal characteristics  /  Rossby normal modes  /  inherent oscillation
Zhibang Mao, Lu Wang, Junyi Li, Lingling Xie, Quanan Zheng. Multi-frequency variability and mechanism of intra-seasonal sea surface height in the Sulawesi Sea[J]. Haiyang Xuebao, 2024 , 46 (2) : 14 -27 . DOI: 10.12284/hyxb2024001
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Article Info
doi: 10.12284/hyxb2024001
  • Receive Date：2023-09-03
  • Online Date：2025-11-25
  • Published：2024-02-29
Article Data
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History
  • Received：2023-09-03
  • Revised：2023-12-26
Funding
Affiliations
    1. College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang 524088, China
    2. Key Laboratory of Climate, Resources and Environment of Guangdong Higher Education Institutions on the Shelf and in the Deep Ocean, Zhanjiang 524088, China
    3. Key Laboratory of Space Ocean Remote Sensing and Application, Ministry of Natural Resources, Beijing 100081, China
    4. Department of Navigation, Naval Petty Officer Academy, Bengbu 233012, China
    5. Department of Atmospheric and Ocean Sciences, University of Maryland, College Park 20742, USA
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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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