The goal of this research is to assess the accuracy of the global geopotential models (GGMs) from 2018 until the present in the Red Sea. The assessment was done by using the gravitational spectral analysis of models with each other and with the comparison with the shipborne gravity anomalies gathered along the Red Sea. In this study, combined models such as (XGM2019e 2159, SGG-UGM 2 and SGG-UGM 1) and satellite-only models such as (GOSG01S, IGGT R1C, Grace02k, DIR R6, GOCO06s, TIM R6 and Grace2018s) are studied. Firstly, all studied GGMs were subjected to gravitational spectral analysis. The statistical results indicate that the combined models outperform the satellite-only models before overcoming the spectral gap. The DIR R6 model is the most reliable of the satellite-only GGMs investigated in this study, exhibiting superior behaviour in all aspects when compared to the other satellite-only GGMs. In addition, the SGG-UGM 2 model is the best of the combined model of this research. Nonetheless, The DIR R6 model showed the best results in band gravitational analysis with spectral enhancement technique.

本研究的目的是评估 2018 年至今红海全球地势模型 (GGM) 的准确性。评估是通过使用 模型相互之间的重力光谱分析以及与沿红海收集的船载重力异常进行比较来完成的。在这项研究中，研究了（XGM2019e 2159、SGG-UGM 2 和 SGG-UGM 1）等组合模型和（GOSG01S、IGGT R1C、Grace02k、DIR R6、GOCO06s、TIM R6 和 Grace2018s）等仅卫星模型。首先，所有研究过的 GGM 都受到引力的影响。 光谱分析。统计结果表明，在克服光谱间隙之前，组合模型优于仅卫星模型。DIR R6 模型是本研究中研究的仅卫星 GGM 中最可靠的模型，与其他仅卫星 GGM 相比，在各个方面都表现出优异的性能。此外，SGG-UGM 2 模型是本研究中最好的组合模型。尽管如此，DIR R6 模型在带光谱增强技术的带引力分析中显示出最好的结果。