6 January 2017
Philip Woodworth and co-authors have published an Eos Opinion article making a plea for ties between tide gauges and GPS measurements. Accurate measurements of changes in sea and land levels with location and time require making precise, repeated geodetic ties between tide gauges and satellite positioning system equipment. However, for a variety of reasons this does not always happen. The article describes the scientific requirements, including for studies of long-term sea level change and for the worldwide height system unification (WHSU), and emphasises the benefits for future researchers of global sea level change, surveyors and geodesists concerned with WHSU, and those concerned with many other practical applications.
Advice on measurement requirements, techniques, and formats for sending information to the data centres is readily available from the PSMSL and the Système d'Observation du Niveau des Eaux Littorales (SONEL).
The article is online at: https://eos.org/opinions/must-tie-satellite-positioning-tide-gauge-data
Citation: Woodworth, P. L., G. Wöppelmann, M. Marcos, M. Gravelle, and R. M. Bingley (2017), Why we must tie satellite positioning to tide gauge data, Eos, 98, doi:10.1029/2017EO064037. Published on 03 January 2017.