Sea level in the Mediterranean: a first step towards separating crustal movements and absolute sea-level variations

Zerbini, Susanna; Plag, Hans‐Peter; Baker, T. F.; Becker, Matthias; Billiris, H.; Bürki, Beat; Kahle, H.‐G.; Marson, I.; Pezzoli, Laura; Richter, Bernd; Romagnoli, Claudia; Sztobryn, Marzenna; Tomasi, P.; Tsimplis, Michael; Veis, G.; Verrone, Grazia

doi:10.1016/0921-8181(96)00003-3

Cited by 66 publications

(36 citation statements)

References 54 publications

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“…The 'IAPSO Committee' recommended that TGBM's should be connected to the International Terrestrial Reference Frame (ITRF) and monitored through episodic GPS campaigns, with simultaneous measurements made at tide gauges and fundamental ITRF stations (Baker 1993). This meeting 'spawned' the first demonstrations of using GPS at tide gauges, through national projects such as UKGAUGE (Ashkenazi et al 1993), which included the first GPS measurements at tide gauges in the UK, and regional projects such as EUROGAUGE (Ashkenazi et al 1994) and SELF I (Zerbini et al 1996).…”

Section: Introductionmentioning

confidence: 99%

Using continuous GPS and absolute gravity to separate vertical land movements and changes in sea-level at tide-gauges in the UK

Teferle

Bingley

Williams

et al. 2006

Phil. Trans. R. Soc. A.

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Researchers investigating climate change have used historical tide gauge measurements from all over the world to investigate the changes in sea level that have occured over the last century or so. A high quality tide gauge record can enable such changes in sea level to be estimated with an acceptable level of uncertainty if several decades of data are used. However, such estimates are a combination of any true sea level variations and any vertical movements of the land at the specific tide gauge. For a tide gauge record to be used to determine the climate related component, it is therefore necessary to correct for the vertical land movement component of the observed change in sea level.In 1990, the IESSG and POL started developing techniques based on the Global Positioning System (GPS) for measuring vertical land movements at tide gauges in the UK. This paper briefly reviews these early developments and shows how they led to the establishment of continuous GPS (CGPS) stations at a number of tide gauges. The paper then goes on to discuss the use of absolute gravity (AG), as an independent technique for measuring vertical land movements at tide gauges. The most recent results, from CGPS time series dating back to 1997 and AG time series dating back to 1995/6, are then used to demonstrate the complementarity of these two techniques and their potential for providing site-specific estimates of vertical land movements at tide gauges in the UK.

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Section: Introductionmentioning

confidence: 99%

Using continuous GPS and absolute gravity to separate vertical land movements and changes in sea-level at tide-gauges in the UK

Teferle

Bingley

Williams

et al. 2006

Phil. Trans. R. Soc. A.

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“…Absolute gravity does not directly estimate the vertical displacement of the crust as gravity is affected both by mass in the ocean itself, as well as the processes responsible for vertical crustal movement. If the processes are well understood, then it can provide independent confirmation on the GPS results, particularly at inland sites [Zerbini et al, 1996;Becker et al, 2002, 2002, Teferle et al, 2006.…”

Section: Tide Gauges and The Reference Framementioning

confidence: 96%

“…Tide gauge measurements are difficult to compare because tide gauges are referred to local reference systems and they have not yet been connected on a common global datum. However, it should be pointed out that several international efforts are underway both at global [IOC, 1997] and regional scales [Zerbini et al, 1996;Becker et al, 2002] which aim to overcome this challenge.…”

Section: Tide Gauges and The Reference Framementioning

confidence: 99%

Geodetic Observations and Global Reference Frame Contributions to Understanding Sea‐Level Rise and Variability

Blewitt

Altamimi

Davis

et al. 2010

Understanding Sea‐Level Rise and Variability

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“…One should, however, always consider that for tide stations placed where the tectonic movements were not expected; the secular trends of the records less than 30 years long may be 2-5 times steeper than those of data sets that span more than 40 years. So it would be unsafe to calculate vertical crustal movements from absolute sea-level variations (Zerbini et al, 1996) or even to calculate long-term trends from relatively short data sets. However, these are the only available physical field data and these factors are therefore briefly estimated below.…”

Section: Sea-level Evaluationmentioning

confidence: 99%

Vulnerability of Turkish coasts to accelerated sea-level rise

Alpar

2009

Geomorphology

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Sea level in the Mediterranean: a first step towards separating crustal movements and absolute sea-level variations

Cited by 66 publications

References 54 publications

Using continuous GPS and absolute gravity to separate vertical land movements and changes in sea-level at tide-gauges in the UK

Using continuous GPS and absolute gravity to separate vertical land movements and changes in sea-level at tide-gauges in the UK

Geodetic Observations and Global Reference Frame Contributions to Understanding Sea‐Level Rise and Variability

Vulnerability of Turkish coasts to accelerated sea-level rise

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