[HTML][HTML] The SDUST2022GRA global marine gravity anomalies recovered from radar and laser altimeter data: Contribution of ICESat-2 laser altimetry

Z Li, J Guo, C Zhu, X Liu, C Hwang… - Earth System …, 2024 - essd.copernicus.org
The global marine gravity anomaly model is predominantly recovered from along-track radar
altimeter data. Despite significant advances in gravity anomaly recovery, the improvement of …

Residual terrain modelling: the harmonic correction for geoid heights

M Yang, C Hirt, B Wu, XL Deng, D Tsoulis, W Feng… - Surveys in …, 2022 - Springer
The harmonic correction (HC) is one of the key quantities when using residual terrain
modelling (RTM) for high-frequency gravity field modelling. In the RTM technique, high …

High-resolution geoid modeling using least squares modification of Stokes and Hotine formulas in Colorado

MS Işık, B Erol, S Erol, FF Sakil - Journal of geodesy, 2021 - Springer
The Colorado geoid experiment was initiated and organized as a joint study by the Joint
Working Group (JWG) 2.2. 2 (1-cm geoid experiment) of the International Association of …

On the harmonic correction in the gravity field determination

M Yang, X Li, M Lin, XL Deng, W Feng, M Zhong… - Journal of …, 2023 - Springer
The “non-harmonicity” problem in residual terrain modelling (RTM) is a challenging issue,
causing errors exceeding 200 mGal in the RTM gravity anomaly in rugged areas. Although …

High-resolution gravity measurements on board an autonomous underwater vehicle: data reduction and accuracy assessment

DT Vu, J Verdun, J Cali, M Maia, C Poitou, J Ammann… - Remote Sensing, 2024 - mdpi.com
Gravity on Earth is of great interest in geodesy, geophysics, and natural resource
exploration. Ship-based gravimeters are a widely used instrument for the collection of …

Bathymetry inversion using the deflection of the vertical: A case study in South China Sea

X Wan, B Liu, X Sui, RF Annan, R Hao, Y Min - Geodesy and Geodynamics, 2022 - Elsevier
The deflection of the vertical is one of the essential products of altimetry. However, unlike
gravity and vertical gravity gradients, it is seldom used in bathymetry inversion. In this study …

An assessment of recently released high-degree global geopotential models based on heterogeneous geodetic and ocean data

Y Wu, X He, Z Luo, H Shi - Frontiers in Earth Science, 2021 - frontiersin.org
The development of the global geopotential model (GGM) broadens its applications in
ocean science, which emphasizes the importance for model assessment. We assess the …

Seamless seafloor topography determination from shallow to deep waters over island areas using airborne gravimetry

Y Wu, Y Li, D Jia, OB Andersen… - … on Geoscience and …, 2023 - ieeexplore.ieee.org
We study the role of airborne gravimetry for seamless bathymetry modeling over the Paracel
Islands in the northern South China Sea (SCS) and investigate the possibility of using Ice …

Refinement of mean dynamic topography over island areas using airborne gravimetry and satellite altimetry data in the northwestern South China Sea

Y Wu, A Abulaitijiang, OB Andersen… - Journal of …, 2021 - Wiley Online Library
The determination of high‐quality mean dynamic topography (MDT) over island areas faces
multiple challenges, due to the error in a global geopotential model (GGM) as well as the …

Local enhancement of marine gravity field over the spratly islands by combining satellite SAR altimeter-derived gravity data

Y Wu, J Wang, A Abulaitijiang, X He, Z Luo, H Shi… - Remote Sensing, 2022 - mdpi.com
The marine gravity field recovery close to land/island is challenging owing to the scarcity of
measured gravimetric observations and sorely contaminated satellite radar altimeter-derived …