Ocean Tide Loading Displacement Parameters Estimated From GNSS-Derived Coordinate Time Series Considering the Effect of Mass Loading in Hong Kong

Zhou, Maosheng; Liu, Xin; Guo, Jinyun; Jin, Xin; Chang, Xiaotao

doi:10.1109/jstars.2020.3028086

Cited by 4 publications

(3 citation statements)

References 39 publications

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“…GNNS time-series have also been applied in models to remove the influence of non-OTL from GPS coordinates [285]. In this regard, the Precise Point Positioning (PPP) technique is used to process the GNSS-R data [286]. OT can cause horizontal and vertical motions of more than a centimeter during a day, which is large enough to be measured with space geodetic techniques.…”

Section: Gnss-rmentioning

confidence: 99%

“…OT can cause horizontal and vertical motions of more than a centimeter during a day, which is large enough to be measured with space geodetic techniques. In this regard, Zhou et al [286] investigated OTL displacement parameters with kinematic PPP using the harmonic analysis method from GNSS coordinate series considering the effect of mass loading.…”

Section: Gnss-rmentioning

confidence: 99%

See 1 more Smart Citation

Ocean Remote Sensing Techniques and Applications: A Review (Part I)

Amani¹,

Moghimi

Mirmazloumi

et al. 2022

Water

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Oceans cover over 70% of the Earth’s surface and provide numerous services to humans and the environment. Therefore, it is crucial to monitor these valuable assets using advanced technologies. In this regard, Remote Sensing (RS) provides a great opportunity to study different oceanographic parameters using archived consistent multitemporal datasets in a cost-efficient approach. So far, various types of RS techniques have been developed and utilized for different oceanographic applications. In this study, 15 applications of RS in the ocean using different RS techniques and systems are comprehensively reviewed and discussed. This study is divided into two parts to supply more detailed information about each application. The first part briefly discusses 12 different RS systems that are often employed for ocean studies. Then, six applications of these systems in the ocean, including Ocean Surface Wind (OSW), Ocean Surface Current (OSC), Ocean Wave Height (OWH), Sea Level (SL), Ocean Tide (OT), and Ship Detection (SD), are provided. For each application, the applicable RS systems, their advantages and disadvantages, various RS and Machine Learning (ML) techniques, and several case studies are discussed. The other nine applications, including Iceberg, Sea Ice (SI), Sea Surface temperature (SST), Ocean Surface Salinity (OSS), Ocean Color (OC), Ocean Chlorophyll (OCh), Ocean Oil Spill (OOS), Underwater Ocean, and Fishery, are provided in Part II of this study.

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Section: Gnss-rmentioning

confidence: 99%

Section: Gnss-rmentioning

confidence: 99%

Ocean Remote Sensing Techniques and Applications: A Review (Part I)

Amani¹,

Moghimi

Mirmazloumi

et al. 2022

Water

View full text Add to dashboard Cite

show abstract

“…The authors are with Radar Research Lab, School of Information and Electronics, Beijing Institute of Technology, Beijing 10081, China and (GNSS) network [2]. Although the tidal force on the lunar surface due to the Earth is about 20 times larger than the tidal force on the Earth due to the Moon, the lunar tidal deformation is more difficult to detect because the moon is solid except for its small core [3].…”

Section: Introductionmentioning

confidence: 99%

Prospect for Measuring Lunar Tidal Deformation and Displacement Love Numbers With Earth-Based Radar

Li,

Ding,

et al. 2024

IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing

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Lunar tidal deformation (LTD), characterized by the vertical (𝒉 𝟐 ) and horizontal (𝒍 𝟐 ) displacement Love numbers, is a key to deciphering the interior structure of the Moon. However, the small deformation amplitude of only up to 10 cm makes their measurements very challenging. In this paper, we propose a novel method named Earth-based repeat-pass SAR interferometry (EBRP-InSAR) to measure the LTD and displacement Love numbers. We analyzed the potential and performance of EBRP-InSAR in detail based on LTD model and existing planetary radar capabilities. The error budget and simulation results show that the relative measurement accuracy of LTD could be better than 2 mm. Furthermore, compared with Lunar Laser Ranging (LLR) and Lunar Orbiter Laser Altimeter (LOLA), the two-pass EBRP-InSAR can not only directly estimate 𝒉 𝟐 but also 𝒍 𝟐 with accuracies better than 𝟏𝟎 −𝟑 and 𝟏𝟎 −𝟒 , respectively, which is comparable that of LLR and LOLA methods. In addition, through long-term time-series observations, it will be possible to assess the spatial inhomogeneity of LTD response to the forcing potential in the near side with time-series EBRP-InSAR. After spatial smoothing, a space variation as small as on the order of 𝟏𝟎 −𝟒 and 𝟏𝟎 −𝟓 in 𝒉 𝟐 and 𝒍 𝟐 , respectively, can be distinguished on the lunar near side. As another measurement technology independent of LLR and LOLA, the EBRP-InSAR is expected to explain the difference between the observations from LLR and LOLA and the modeled lunar interior structure, and firstly estimate the lunar horizontal displacement Love number.

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Seasonal Variation of GPS-Derived the Principal Ocean Tidal Constituents’ Loading Displacement Parameters Based on Moving Harmonic Analysis in Hong Kong

et al. 2021

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The classical harmonic analysis (CHA) method only can be used to obtain the harmonic constants (amplitude and phase) of ocean tide loading displacement (OTLD). In fact, there are significant seasonal variations in the harmonic constants of OTLD. A moving harmonic analysis (MHA) method is proposed, which can effectively capture the seasonal variation of OTLD parameters. Based on 5 years of kinematic coordinate time series in direction U of six Global Positioning System (GPS) stations in Hong Kong, the MHA method is used to explore the seasonal variation of the OTLD parameters of the 6 principal tidal constituents (M2, S2, N2, K1, O1, Q1). The influence of mass loading on the seasonal variation of OTLD parameters is analyzed. The results show that there are obviously seasonal variations in OTLD parameters of the 6 principal tidal constituents in Hong Kong. The OTLD’s amplitude’s changes of the 6 principal tidal constituents are around 4–25.1% and the oscillation ranges of OTLD’s phase parameters vary from 8.8° to 20.4°. Among the seasonal variations of OTLD parameters, the annual signal, the semi-annual signal, and the ter-annual signal are the most significant. By analyzing the influence of atmospheric loading on the seasonal variation of OTLD parameters, it is found that atmospheric loading has certain contribution to the seasonal variation of OTLD parameters. Hydrological loading and non-tidal ocean loading have little influence on the seasonal variation of OTLD parameters.

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Ocean Tide Loading Displacement Parameters Estimated From GNSS-Derived Coordinate Time Series Considering the Effect of Mass Loading in Hong Kong

Cited by 4 publications

References 39 publications

Ocean Remote Sensing Techniques and Applications: A Review (Part I)

Ocean Remote Sensing Techniques and Applications: A Review (Part I)

Prospect for Measuring Lunar Tidal Deformation and Displacement Love Numbers With Earth-Based Radar

Seasonal Variation of GPS-Derived the Principal Ocean Tidal Constituents’ Loading Displacement Parameters Based on Moving Harmonic Analysis in Hong Kong

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