Arctic Tides from GPS on sea-ice

The presence of sea-ice in the Arctic Ocean plays a significant role in the Arctic climate. Sea-ice dampens the ocean tide amplitude with the result that global tidal models perform less accurately in the polar regions. This paper presents, a kinematic processing of global positioning system (GPS) p...

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Bibliographic Details
Published in:Journal of Geodynamics
Main Authors: Kildegaard Rose, Stine, Skourup, Henriette, Forsberg, René
Format: Article in Journal/Newspaper
Language:English
Published: 2013
Subjects:
/dk/atira/pure/sustainabledevelopmentgoals/climate_action
SDG 13 - Climate Action
Arctic
Arctic Ocean
Greenland
Sea ice
Online Access:https://orbit.dtu.dk/en/publications/16eef419-5195-4294-be2e-c9986d5c3447
https://doi.org/10.1016/j.jog.2012.09.002
Description
Summary:The presence of sea-ice in the Arctic Ocean plays a significant role in the Arctic climate. Sea-ice dampens the ocean tide amplitude with the result that global tidal models perform less accurately in the polar regions. This paper presents, a kinematic processing of global positioning system (GPS) placed on sea-ice, at six different sites north of Greenland for the preliminary study of sea surface height (SSH), and tidal analysis to improve tide models in the Central Arctic. The GPS measurements are compared with the Arctic tide model AOTIM-5, which assimilates tide-gauges and altimetry data. The results show coherence between the GPS buoy measurements, and the tide model. Furthermore, we have proved that the reference ellipsoid of WGS84, can be interpolated to the tidal defined zero level by applying geophysical corrections to the GPS data.

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