Geodetic SAR for Height System Unification and Sea Level Research—Observation Concept and Preliminary Results in the Baltic Sea

Author:

Gruber ThomasORCID,Ågren Jonas,Angermann Detlef,Ellmann ArtuORCID,Engfeldt Andreas,Gisinger Christoph,Jaworski Leszek,Marila Simo,Nastula JolantaORCID,Nilfouroushan FaramarzORCID,Oikonomidou Xanthi,Poutanen MarkkuORCID,Saari Timo,Schlaak MariusORCID,Światek Anna,Varbla Sander,Zdunek Ryszard

Abstract

Traditionally, sea level is observed at tide gauge stations, which usually also serve as height reference stations for national leveling networks and therefore define a height system of a country. One of the main deficiencies to use tide gauge data for geodetic sea level research and height systems unification is that only a few stations are connected to the geometric network of a country by operating permanent GNSS receivers next to the tide gauge. As a new observation technique, absolute positioning by SAR using active transponders on ground can fill this gap by systematically observing time series of geometric heights at tide gauge stations. By additionally knowing the tide gauge geoid heights in a global height reference frame, one can finally obtain absolute sea level heights at each tide gauge. With this information the impact of climate change on the sea level can be quantified in an absolute manner and height systems can be connected across the oceans. First results from applying this technique at selected tide gauges at the Baltic coasts are promising but also exhibit some problems related to the new technique. The paper presents the concept of using the new observation type in an integrated sea level observing system and provides some early results for SAR positioning in the Baltic sea area.

Publisher

MDPI AG

Subject

General Earth and Planetary Sciences

Reference63 articles.

1. Sea-Level Rise from the Late 19th to the Early 21st Century

2. Sea level: A review of present-day and recent-past changes and variability

3. Satellite Altimetry over Oceans and Land Surfaces;Stammer,2017

4. Estimating Mean Sea Level Change from the TOPEX and Jason Altimeter Missions

5. The Permanent Service for Mean Sea Level: An Update to the 21stCentury;Woodworth;J. Coast. Res.,2003

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