Ocean Tides Observed from A GPS Receiver on Floating Sea Ice Near Chinese Zhongshan Station, Antarctica
Due to limit of coverage in TOPEX/Poseidon (T/P) satellite and sparseness of in-situ tide gauges around Antarctica, the accuracy of global ocean tide models in Antarctic seas is relatively poorer than in low- and mid-latitude regions. To better understand ocean tides in Prydz Bay, east Antarctica, a...
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ftunisfloridatam:oai:digitalcommons.usf.edu:geo_studpub-1026 2023-05-15T13:34:05+02:00 Ocean Tides Observed from A GPS Receiver on Floating Sea Ice Near Chinese Zhongshan Station, Antarctica Lei, Jintao Li, Fei Zhang, Shengkai Xiao, Chi Xie, Surui Ke, Heo Zhang, Qingchuan Li, Wenhao 2018-01-01T08:00:00Z https://digitalcommons.usf.edu/geo_studpub/28 https://doi.org/10.1080/01490419.2018.1454370 unknown Digital Commons @ University of South Florida https://digitalcommons.usf.edu/geo_studpub/28 https://doi.org/10.1080/01490419.2018.1454370 School of Geosciences Student Publications GPS harmonic analysis kinematic PPP ocean tides Earth Sciences article 2018 ftunisfloridatam https://doi.org/10.1080/01490419.2018.1454370 2021-10-09T07:50:35Z Due to limit of coverage in TOPEX/Poseidon (T/P) satellite and sparseness of in-situ tide gauges around Antarctica, the accuracy of global ocean tide models in Antarctic seas is relatively poorer than in low- and mid-latitude regions. To better understand ocean tides in Prydz Bay, east Antarctica, a GPS receiver was deployed on floating sea ice to measure tide-induced ice motion in multiple campaigns. Four online Precise Point Positioning (PPP) services are used to process the GPS data in the kinematic PPP mode, and UTide software is used to separate the major tidal constituents. Comparison between results from different processing methods (relative processing solutions from Track, kinematic PPP solutions from online services) and with bottom pressure gauge (BPG) shows that, high-accuracy tidal information can be obtained from GPS observations on floating sea ice, the root-sum-square (RSS) for the eight major constituents (O1, K1, P1, Q1, M2, S2, N2, K2) is below 4 cm. We have also studied the impacts of data span and filter edge effects at daily boundaries on the accuracy of tide estimates, and found that to obtain reliable tide estimates and neglect the filter edge effects, continuous observation longer than 30 days is necessary. Our study suggests that GPS provides an independent method to estimate tides in Prydz Bay, and can be an alternative to tidal gauges, which are costly and hard to maintain in Antarctica. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Prydz Bay Sea ice Digital Commons University of South Florida (USF) Antarctic East Antarctica Prydz Bay Zhongshan ENVELOPE(76.371,76.371,-69.373,-69.373) Zhongshan Station ENVELOPE(76.371,76.371,-69.373,-69.373) Marine Geodesy 41 4 353 367 |
institution |
Open Polar |
collection |
Digital Commons University of South Florida (USF) |
op_collection_id |
ftunisfloridatam |
language |
unknown |
topic |
GPS harmonic analysis kinematic PPP ocean tides Earth Sciences |
spellingShingle |
GPS harmonic analysis kinematic PPP ocean tides Earth Sciences Lei, Jintao Li, Fei Zhang, Shengkai Xiao, Chi Xie, Surui Ke, Heo Zhang, Qingchuan Li, Wenhao Ocean Tides Observed from A GPS Receiver on Floating Sea Ice Near Chinese Zhongshan Station, Antarctica |
topic_facet |
GPS harmonic analysis kinematic PPP ocean tides Earth Sciences |
description |
Due to limit of coverage in TOPEX/Poseidon (T/P) satellite and sparseness of in-situ tide gauges around Antarctica, the accuracy of global ocean tide models in Antarctic seas is relatively poorer than in low- and mid-latitude regions. To better understand ocean tides in Prydz Bay, east Antarctica, a GPS receiver was deployed on floating sea ice to measure tide-induced ice motion in multiple campaigns. Four online Precise Point Positioning (PPP) services are used to process the GPS data in the kinematic PPP mode, and UTide software is used to separate the major tidal constituents. Comparison between results from different processing methods (relative processing solutions from Track, kinematic PPP solutions from online services) and with bottom pressure gauge (BPG) shows that, high-accuracy tidal information can be obtained from GPS observations on floating sea ice, the root-sum-square (RSS) for the eight major constituents (O1, K1, P1, Q1, M2, S2, N2, K2) is below 4 cm. We have also studied the impacts of data span and filter edge effects at daily boundaries on the accuracy of tide estimates, and found that to obtain reliable tide estimates and neglect the filter edge effects, continuous observation longer than 30 days is necessary. Our study suggests that GPS provides an independent method to estimate tides in Prydz Bay, and can be an alternative to tidal gauges, which are costly and hard to maintain in Antarctica. |
format |
Article in Journal/Newspaper |
author |
Lei, Jintao Li, Fei Zhang, Shengkai Xiao, Chi Xie, Surui Ke, Heo Zhang, Qingchuan Li, Wenhao |
author_facet |
Lei, Jintao Li, Fei Zhang, Shengkai Xiao, Chi Xie, Surui Ke, Heo Zhang, Qingchuan Li, Wenhao |
author_sort |
Lei, Jintao |
title |
Ocean Tides Observed from A GPS Receiver on Floating Sea Ice Near Chinese Zhongshan Station, Antarctica |
title_short |
Ocean Tides Observed from A GPS Receiver on Floating Sea Ice Near Chinese Zhongshan Station, Antarctica |
title_full |
Ocean Tides Observed from A GPS Receiver on Floating Sea Ice Near Chinese Zhongshan Station, Antarctica |
title_fullStr |
Ocean Tides Observed from A GPS Receiver on Floating Sea Ice Near Chinese Zhongshan Station, Antarctica |
title_full_unstemmed |
Ocean Tides Observed from A GPS Receiver on Floating Sea Ice Near Chinese Zhongshan Station, Antarctica |
title_sort |
ocean tides observed from a gps receiver on floating sea ice near chinese zhongshan station, antarctica |
publisher |
Digital Commons @ University of South Florida |
publishDate |
2018 |
url |
https://digitalcommons.usf.edu/geo_studpub/28 https://doi.org/10.1080/01490419.2018.1454370 |
long_lat |
ENVELOPE(76.371,76.371,-69.373,-69.373) ENVELOPE(76.371,76.371,-69.373,-69.373) |
geographic |
Antarctic East Antarctica Prydz Bay Zhongshan Zhongshan Station |
geographic_facet |
Antarctic East Antarctica Prydz Bay Zhongshan Zhongshan Station |
genre |
Antarc* Antarctic Antarctica East Antarctica Prydz Bay Sea ice |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Prydz Bay Sea ice |
op_source |
School of Geosciences Student Publications |
op_relation |
https://digitalcommons.usf.edu/geo_studpub/28 https://doi.org/10.1080/01490419.2018.1454370 |
op_doi |
https://doi.org/10.1080/01490419.2018.1454370 |
container_title |
Marine Geodesy |
container_volume |
41 |
container_issue |
4 |
container_start_page |
353 |
op_container_end_page |
367 |
_version_ |
1766048760843993088 |