Full
Outline
This paper employs the spherical radial basis function (SRBF) method to integrate terrestrial gravity and airborne gravity data for the computation of the gravity quasi-geoid. Experiments are conducted from aspects such as terrain effects, model order, and basis function parameters to investigate the impact and variation patterns of different parameters.The results show that: 1) The burial depth, effective distance, and expansion order of the basis function all affect the quality of the quasi-geoid refined by the SRBF method. The precision difference of the geoidal height anomalies corresponding to different parameter settings can reach up to 2.4 cm; 2) Considering the terrain effects when calculating residual gravity data can improve the final quasi-geoid precision by 21.6%; 3) Using two sets of GNSS/leveling points with different precisions and distributions for external validation of the quasi-geoid results, the best validation precision differs by 4.3 cm; 4) In mountainous areas, by optimizing parameters to integrate terrestrial and airborne data, the optimal precision of the quasi-geoid result can reach 2.7 cm.
23
9
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 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 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
