Journal of Tropical Oceanography ›› 2025, Vol. 44 ›› Issue (6): 1-11.doi: 10.11978/2025015CSTR: 32234.14.2025015
Special Issue: 海洋大数据及应用
Domestic satellite sea surface temperature data fusion based on successive corrections*
NIU Haoran1,2(
), WANG Xidong1,2(), GAO Zhenbo1,2, CHEN Zhiqiang3
- 1
Key Laboratory of Marine Hazards Forecasting ,Ministry of Natural Resources, Hohai University
2College of Oceanography ,Hohai University
3South China Sea Institute of Oceanology ,Chinese Academy of Sciences
-
Received:2025-01-25Revised:2025-03-18Online:2025-11-10Published:2025-12-03 -
Contact:WANG Xidong. email: xidong_wang@hhu.edu.cn -
Supported by:National Natural Science Foundation of China(41776004)
CLC Number:
- P714.1
Cite this article
NIU Haoran, WANG Xidong, GAO Zhenbo, CHEN Zhiqiang. Domestic satellite sea surface temperature data fusion based on successive corrections*[J].Journal of Tropical Oceanography, 2025, 44(6): 1-11.
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Fig. 1
Flowchart of the successive corrections process for SST fusion"
Fig. 1
Fig. 2
Spatial distribution of filtered iQuam SST data from April 1 to June 30, 2024"
Fig. 2
Tab. 1
Statistical analysis of the matching results between single-satellite data and measured iQuam data (April to June 2024)"
| 卫星 | 匹配数 | 平均偏差/℃ | 绝对偏差/℃ | 均方根误差/℃ | 相关系数 |
|---|---|---|---|---|---|
| HY-1C | 9725 | -1.45 | 1.65 | 2.08 | 0.75 |
| HY-1D | 9572 | -1.23 | 1.52 | 1.98 | 0.70 |
| HY-2B | 2328 | -1.25 | 1.38 | 1.73 | 0.81 |
| FY-3D | 3877 | -0.36 | 0.72 | 0.94 | 0.88 |
| FY-3E | 7935 | 0.04 | 0.47 | 0.63 | 0.94 |
| FY-4B | 24712 | -0.39 | 0.59 | 0.77 | 0.94 |
Tab. 1
Fig. 3
Matching results between satellite SST data and iQuam data from April to June. (a) HY-1C SST; (b) HY-1D SST; (c) HY-2B SST; (d) FY-3D SST; (e) FY-3E SST; (f) FY-4B SST"
Fig. 3
Fig. 4
Histograms of matching deviations between satellite SST data and iQuam data from April to June. (a) HY-1C SST; (b) HY-1D SST; (c) HY-2B SST; (d) FY-3D SST; (e) FY-3E SST; (f) FY-4B SST"
Fig. 4
Fig. 5
Spatial distribution of satellite SST data on June 1, 2024. (a) HY-1C COCTS; (b) HY-1D COCTS; (c) HY-2B SMR; (d) FY-3D MERI; (e) FY-3E MERSI; (f) FY-4B AGRI"
Fig. 5
Fig. 6
Distribution of deviations between HY-1C satellite data before and after correction and OISST data on June 1, 2024. (a) HY-1C data before correction; (b) HY-1C data after correction; (c) deviation between HY-1C data and OISST before correction; (d) deviation between HY-1C data and OISST after correction"
Fig. 6
Fig. 7
Distribution of deviations between HY-1D satellite data before and after correction and OISST data on June 1, 2024. (a) HY-1D data before correction; (b) HY-1D data after correction; (c) deviation between HY-1D data and OISST before correction; (d) deviation between HY-1D data and OISST after correction"
Fig. 7
Tab. 2
Error statistics of HY-1C and HY-1D data after correction (April to June 2024)"
| 卫星 | 平均偏差/℃ | 均方根误差/℃ | 绝对偏差/℃ |
|---|---|---|---|
| HY-1C | 0.13 | 1.11 | 0.83 |
| HY-1D | 0.09 | 1.08 | 0.82 |
Tab. 2
Fig. 8
Comparison between fusion results and OISST. (a) Fusion results on June 1; (b) OISST on June 1; (c) deviation between fusion results and OISST on June 1; (d) spatial distribution of average deviation in June"
Fig. 8
Fig. 9
Power spectral density analysis for June 1-7. (a) Four analysis regions; (b) Arabian Sea (60°-68°E, 10°-18°N); (c) Bay of Bengal (83°-91°E, 9°-17°N); (d) South China Sea (110°-118°E, 10°-18°N); (e) eastern waters of Taiwan Island (124°-132°E, 15°-23°N)"
Fig. 9
Tab. 3
Error statistics of fusion products from April to June 2024"
| 融合产品 | OISST | |
|---|---|---|
| 平均偏差/℃ | 0.08 | -0.14 |
| 绝对偏差/℃ | 0.47 | 0.37 |
| 均方根误差/℃ | 0.67 | 0.52 |
| 相关系数 | 0.96 | 0.97 |
Tab. 3
Fig. 10
Distribution of matching results between the fusion result (a) and OISST (b) with iQuam, respectively"
Fig. 10
Fig. 11
Histograms of deviations between the fusion result (a) and OISST (b) with iQuam, respectively"
Fig. 11
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