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Afrasteh, Y. (author)Establishing an accurate global unified vertical reference frame (VRF) is a long-standing objective of geodesy. However, that objective has still not been achieved. One particular application where the lack of such a VRF is evident, is the improvement of hydrodynamic models by assimilating total water levels acquired by tide gauges. Indeed, to...doctoral thesis 2024
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Draisma, Max (author)Understanding the factors that drive extreme water levels is key to an accurate assessment of flood hazard. The city of Venice has always been affected by flooding due to extreme water levels. In this study, we examine the factors driving and influencing extreme water levels in the Venice lagoon, aiming at deriving accurate extreme water level...master thesis 2023
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Simons, W.J.F. (author), Naeije, M.C. (author), Ghazali, Zaki (author), Darani Rahman, Wan (author), Cob, Sanusi (author), Kadir, Majid (author), Bin Mustafar, M.A. (author), Din, Ami Hassan (author), Efendi, Joni Efendi (author), Noppradit, Prakrit (author)Absolute sea-level rise has become an important topic globally due to climate change. In addition, relative sea-level rise due to the vertical land motion in coastal areas can have a big societal impact. Vertical land motion (VLM) in Southeast Asia includes a tectonically induced component: uplift and subsidence in plate boundary zones where...journal article 2023
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Afrasteh, Y. (author), Slobbe, D.C. (author), Verlaan, M. (author), Klees, R. (author), Guarneri, H. (author), Keyzer, L.M. (author), Pietrzak, J.D. (author), Sacher, M. (author), Snellen, M. (author), Zijl, F. (author)The main objective of this study is to develop and analyze an empirical noise model for model-derived coastal summer mean water levels (SMWLs) and use that to obtain a more realistic quality impact of combining hydrodynamic leveling and Unified European Leveling Network (UELN) data in realizing the European Vertical Reference System (EVRS)....journal article 2023
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Afrasteh, Y. (author), Slobbe, D.C. (author), Sacher, M. (author), Verlaan, M. (author), Klees, R. (author), Guarneri, H. (author), Keyzer, L.M. (author), Pietrzak, J.D. (author), Snellen, M. (author)All realizations of the European Vertical Reference System (EVRS) computed so far are solely based on geopotential differences obtained by spirit leveling/gravimetry. As such, there are no direct connections between height benchmarks separated by large water bodies. In this study, such connections are added by means of model-based...journal article 2023
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Naeije, M.C. (author), Di Bella, Alessandro (author), Geminale, Teresa (author), Visser, P.N.A.M. (author)ESA’s Earth explorer mission CryoSat-2 has an ice-monitoring objective, but it has proven to also be a valuable source of observations for measuring impacts of climate change over oceans. In this paper, we report on our long-term ocean data analysis and validation and give our final words on CryoSat-2’s Geophysical Ocean Products (GOP)...journal article 2023
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Naeije, M.C. (author), Simons, W.J.F. (author), Pradit, Siriporn (author), Niemnil, Sommart (author), Thongtham, Nalinee (author), Bin Mustafar, M.A. (author), Noppradit, Prakrit (author)Temporal changes in vertical land motion (VLM) in and around Phuket Island in southern Thailand following the great 2004 Sumatra–Andaman megathrust earthquake have impacted the relative sea-level change estimates based on tide-gauge (TG) records. To better monitor the VLM, two new continuous global navigation satellite system (GNSS) stations...journal article 2022
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Afrasteh, Y. (author), Slobbe, D.C. (author), Verlaan, M. (author), Sacher, M. (author), Klees, R. (author), Guarneri, H. (author), Keyzer, L.M. (author), Pietrzak, J.D. (author), Snellen, M. (author), Zijl, F. (author)The first objective of this paper is to assess by means of geodetic network analyses the impact of adding model-based hydrodynamic leveling data to the Unified European Leveling Network (UELN) data on the precision and reliability of the European Vertical Reference Frame (EVRF). In doing so, we used variance information from the latest UELN...journal article 2021
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Arens, J.T. (author)Long-term sea level change and its spatial and temporal variability measured with tide gauge stations along the Dutch coast have been studied. This study investigates how time series length and modeling choices influence the adoption of a quadratic over a linear sea level model. We apply linear and quadratic models to corrected tide gauges, for...student report 2020
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Slobbe, D.C. (author), Klees, R. (author), Verlaan, M. (author), Zijl, F. (author), Alberts, BA (author), Farahani, H. (author)We present an efficient and flexible alternative method to connect islands and offshore tide gauges with the height system on land. The method uses a regional, high-resolution hydrodynamic model that provides total water levels. From the model, we obtain the differences in mean water level (MWL) between tide gauges at the mainland and at the...journal article 2018
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Frederikse, T. (author), Riva, R.E.M. (author), King, A. Matt (author)Present-day mass redistribution increases the total ocean mass and, on average, causes the ocean bottom to subside elastically. Therefore, barystatic sea level rise is larger than the resulting global mean geocentric sea level rise, observed by satellite altimetry and GPS-corrected tide gauges. We use realistic estimates of mass...journal article 2017
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Estimating decadal variability in sea level from tide gauge records: An application to the North SeaFrederikse, T. (author), Riva, R.E.M. (author), Slobbe, D.C. (author), Broerse, D.B.T. (author), Verlaan, M. (author)One of the primary observational data sets of sea level is represented by the tide gauge record. We propose a new method to estimate variability on decadal time scales from tide gauge data by using a state space formulation, which couples the direct observations to a predefined state space model by using a Kalman filter. The model consists of...journal article 2016
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Din, A.H. (author), Omar, K.M. (author), Naeije, M.C. (author), Ses, S. (author)The long-term sea level change during 1993 to 2008 was investigated in the Malaysian seas from satellite altimetry data of the TOPEX, JASON-1, ERS-1, ERS-2 and ENVISAT missions. Sea level data retrieval and reduction were carried out using the radar altimeter database system (RADS). In RADS data processing, the 2008 updated environmental and...journal article 2012
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- Cornelisse, J.M. (author) report 1994
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- Boer, K. den (author), Flokstra, C. (author) report 1979
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Alcock, G.A. (author), Vassie, J.M. (author)This report describes the results obtained from five off Shore Tide Gauges (O.S.T.G.) deployed in the northern North Sea as part of the Joint North Sea Data Acquisition Programme (JONSDAP) during March and April 1976. The positions of the deployment stations are shown on Fig. 1 and lie on a line from Wick on the Scottish mainland, north-east as...report 1977