scholarly journals Accurate evaluation of ocean tide loading effects for gravity in nearshore region: The FG5 measurements at Sakurajima Volcano in Kagoshima Bay, Japan

2001 ◽  
Vol 28 (9) ◽  
pp. 1807-1810 ◽  
Author(s):  
Keigo Yamamoto ◽  
Kazuhiro Ishihara ◽  
Shuhei Okubo ◽  
Akito Araya
Keyword(s):  
Ocean Tide ◽  
Accurate Evaluation ◽  
Ocean Tide Loading ◽  
Sakurajima Volcano ◽  
Kagoshima Bay ◽  
Loading Effects

scholarly journals Ocean Tide Loading Effects on InSAR Observations Over Wide Regions

2020 ◽  
Vol 47 (15) ◽  
Author(s):  
Chen Yu ◽  
Nigel T. Penna ◽  
Zhenhong Li
Keyword(s):  
Ocean Tide ◽  
Ocean Tide Loading ◽  
Loading Effects

Global charts of ocean tide loading effects

1990 ◽  
Vol 95 (C7) ◽  
pp. 11411 ◽  
Author(s):  
O. Francis ◽  
P. Mazzega
Keyword(s):  
Ocean Tide ◽  
Ocean Tide Loading ◽  
Loading Effects

scholarly journals OCEAN TIDE LOADING AND RELATIVE GNSS IN THE BRITISH ISLES

Survey Review ◽  
2010 ◽  
Vol 42 (317) ◽  
pp. 212-228
Author(s):  
P. J. Clarke ◽  
N. T. Penna
Keyword(s):  
Ocean Tide ◽  
British Isles ◽  
Ocean Tide Loading

scholarly journals Research Article. A new gravity laboratory in Ny-Ålesund, Svalbard

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
K. Breili ◽  
R. Hougen ◽  
D. I. Lysaker ◽  
O. C. D. Omang ◽  
B. Tangen
Keyword(s):  
Noise Level ◽  
Gravity Data ◽  
Ocean Tide ◽  
Gravity Gradients ◽  
Svalbard Archipelago ◽  
Ocean Tide Loading ◽  
Lower Elevation ◽  
Gravity Measurements ◽  
Space Geodetic Techniques ◽  
Under Construction

AbstractThe Norwegian Mapping Authority (NMA) has recently established a new gravity laboratory in Ny-Ålesund at Svalbard, Norway. The laboratory consists of three independent pillars and is part of the geodetic core station that is presently under construction at Brandal, approximately 1.5 km north of NMA’s old station. In anticipation of future use of the new gravity laboratory, we present benchmark gravity values, gravity gradients, and final coordinates of all new pillars. Test measurements indicate a higher noise level at Brandal compared to the old station. The increased noise level is attributed to higher sensitivity to wind.We have also investigated possible consequences of moving to Brandal when it comes to the gravitational signal of present-day ice mass changes and ocean tide loading. Plausible models representing ice mass changes at the Svalbard archipelago indicate that the gravitational signal at Brandal may differ from that at the old site with a size detectable with modern gravimeters. Users of gravity data from Ny-Ålesund should, therefore, be cautious if future observations from the new observatory are used to extend the existing gravity record. Due to its lower elevation, Brandal is significantly less sensitive to gravitational ocean tide loading. In the future, Brandal will be the prime site for gravimetry in Ny-Ålesund. This ensures gravity measurements collocated with space geodetic techniques like VLBI, SLR, and GNSS.

scholarly journals The Impact of Different Ocean Tide Loading Models on GNSS Estimated Zenith Tropospheric Delay Using Precise Point Positioning Technique

2020 ◽  
Vol 12 (18) ◽  
pp. 3080
Author(s):  
Jinglei Zhang ◽  
Xiaoming Wang ◽  
Zishen Li ◽  
Shuhui Li ◽  
Cong Qiu ◽  
...  
Keyword(s):  
Precise Point Positioning ◽  
Precipitable Water ◽  
Global Navigation Satellite Systems ◽  
Ocean Tide ◽  
Tropospheric Delay ◽  
Ocean Tide Loading ◽  
Zenith Tropospheric Delay ◽  
Point Positioning ◽  
The Difference ◽  
The Impact

Global navigation satellite systems (GNSSs) have become an important tool to derive atmospheric products, such as the total zenith tropospheric delay (ZTD) and precipitable water vapor (PWV) for weather and climate studies. The ocean tide loading (OTL) effect is one of the primary errors that affects the accuracy of GNSS-derived ZTD/PWV, which means the study and choice of the OTL model is an important issue for high-accuracy ZTD estimation. In this study, GNSS data from 1 January 2019 to 31 January 2019 are processed using precise point positioning (PPP) at globally distributed stations. The performance of seven widely used global OTL models is assessed and their impact on the GNSS-derived ZTD is investigated by comparing them against the ZTD calculated from co-located radiosonde observations. The results indicate that the inclusion or exclusion of the OTL effect will lead to a difference in ZTD of up to 3–15 mm for island stations, and up to 1–2 mm for inland stations. The difference of the ZTD determined with different OTL models is quite small, with a root-mean-square (RMS) value below 1.5 mm at most stations. The comparison between the GNSS-derived ZTD and the radiosonde-derived ZTD indicates that the adoption of OTL models can improve the accuracy of GNSS-derived ZTD. The results also indicate that the adoption of a smaller cutoff elevation, e.g., 3° or 7°, can significantly reduce the difference between the ZTDs determined by GNSS and radiosonde, when compared against a 15° cutoff elevation. Compared to the radiosonde-derived ZTD, the RMS error of GNSS-derived ZTD is approximately 25–35 mm at a cutoff elevation of 15°, and 15–25 mm when the cutoff elevation is set to 3°.

scholarly journals Tidal gravity and ocean tide loading in Europe

1991 ◽  
Vol 107 (1) ◽  
pp. 1-11 ◽  
Author(s):  
T. F. Baker ◽  
R. J. Edge ◽  
G. Jeffries
Keyword(s):  
Ocean Tide ◽  
Tidal Gravity ◽  
Ocean Tide Loading

scholarly journals GPS estimates of ocean tide loading in NW-France: determination of ocean tide loading constituents and comparison with a recent ocean tide model

2008 ◽  
Vol 173 (2) ◽  
pp. 444-458 ◽  
Author(s):  
M. Vergnolle ◽  
M.-N. Bouin ◽  
L. Morel ◽  
F. Masson ◽  
S. Durand ◽  
...  
Keyword(s):  
Ocean Tide ◽  
Ocean Tide Loading ◽  
Ocean Tide Model ◽  
Tide Model

scholarly journals Validating ocean tide loading models using GPS

2005 ◽  
Vol 78 (10) ◽  
pp. 616-625 ◽  
Author(s):  
C. Urschl ◽  
R. Dach ◽  
U. Hugentobler ◽  
S. Schaer ◽  
G. Beutler
Keyword(s):  
Ocean Tide ◽  
Ocean Tide Loading
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