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(1 - 16 of 16)
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Duan, X.J. (author), Guo, J.Y. (author), Shum, C.K. (author), Van der Wal, W. (author)
We revisit the empirical moving window filtering method of Swenson and Wahr (Geophys Res Lett 33:L08402, 2006) and its variants, Chambers (Geophys Res Lett 33:L17603, 2006) and Chen et al. (Geophys Res Lett 34: L13302, 2007), for reducing the correlated errors in the Stokes coefficients (SCs) of the spherical harmonic expansion of the GRACE...
journal article 2009
document
Root, B.C. (author), Van der Wal, W. (author), Ebbing, J. (author)
journal article 2015
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De Haan, J. (author), Van der Wal, E.B. (author), De Vries, P. (author)
The sale price appraisal ratio (SPAR) method has been applied in a number of countries to construct house price indexes. This paper reviews the statistical and index number properties of the SPAR approach. Three types of SPAR indexes are distinguished: a weighted index, which aims at tracking the price change of the stock of owner-occupied...
journal article 2009
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Xu, Z. (author), Schrama, E.J.O. (author), Van der Wal, W. (author), Van den Broeke, M. (author), Enderlin, E.M. (author)
In this study, we use satellite gravimetry data from the Gravity Recovery and Climate Experiment (GRACE) to estimate regional mass changes of the Greenland ice sheet (GrIS) and neighbouring glaciated regions using a least-squares inversion approach. We also consider results from the input-output method (IOM) that quantifies the difference...
journal article 2015
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Bouman, J. (author), Fuchs, M. (author), Ivins, E. (author), Van der Wal, W. (author), Schrama, E.J.O. (author), Visser, P.N.A.M. (author), Horwath, M. (author)
The orbit and instrumental measurement of the Gravity Field and Steady State Ocean Circulation Explorer (GOCE) satellite mission offer the highest ever resolution capabilities for mapping Earth's gravity field from space. However, past analysis predicted that GOCE would not detect changes in ice sheet mass. Here we demonstrate that GOCE gravity...
journal article 2014
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Van der Wal, W. (author), Whitehouse, P.L. (author), Schrama, E.J.O. (author)
Seismic data indicate that there are large viscosity variations in the mantle beneath Antarctica. Consideration of such variations would affect predictions of models of Glacial Isostatic Adjustment (GIA), which are used to correct satellite measurements of ice mass change. However, most GIA models used for that purpose have assumed the mantle to...
journal article 2015
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Hu, Z. (author), Van Belzen, J. (author), Van der Wal, D. (author), Balke, T. (author), Wang, Z.B. (author), Stive, M.J.F. (author), Bouma, T.J. (author)
Understanding the mechanisms limiting and facilitating salt marsh vegetation initial establishment is of widespread importance due to the many valuable services salt marsh ecosystems offer. Salt marsh dynamics have been investigated by many previous studies, but the mechanisms that enable or disable salt marsh initial establishment are still...
journal article 2015
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Orlando, T.P. (author), Mooij, J.E. (author), Tian, L. (author), Van der Wal, C.H. (author), Levitov, L.S. (author), Lloyd, S. (author), Mazo, J.J. (author)
journal article 1999
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Broerse, D.B.T. (author), Vermeersen, L.L.A. (author), Riva, R.E.M. (author), Van der Wal, W. (author)
Large earthquakes do not only heavily deform the crust in the vicinity of the fault, they also change the gravity field of the area affected by the earthquake due to mass redistribution in the upper layers of the Earth. Besides that, for sub-oceanic earthquakes deformation of the ocean floor causes relative sea level changes and mass...
journal article 2011
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De Vries, P. (author), De Haan, J. (author), Mariën, A.A.A. (author), Van der Wal, E. (author)
Within the European Union there has been a push to provide European governments and the European Central Bank with the statistics they need for monitoring the owneroccupied sector. This paper reports on the results of a project to develop a house price index for the Netherlands. From January 2008, Kadaster, the Dutch land registry office, and...
journal article 2009
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Root, B.C. (author), Tarasov, L. (author), Van der Wal, W. (author)
The Barents Sea is subject to ongoing postglacial uplift since the melting of the Weichselian ice sheet that covered it. The regional ice sheet thickness history is not well known because there is only data at the periphery due to the locations of Franz Joseph Land, Svalbard, and Novaya Zemlya surrounding this paleo ice sheet. We show that the...
journal article 2015
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Van Oosterom, P.J.M. (author), Van der Wal, T. (author), De By, R.A. (author)
The Netherlands is historically known as one of worlds' best-measured countries. It is continuing this tradition today with unequalled new datasets, such as the nationwide large-scale topographic map, our unique digital height map (nationwide coverage; ten very accurate 3D points for every Dutch m2) and a range of public and private collections...
journal article 2011
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Van der Wal, W. (author)
journal article 2010
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Van der Wal, W. (author), Barnhoorn, A. (author), Stocchi, P. (author), Gradmann, S. (author), Wu, P. (author), Drury, M. (author), Vermeersen, L.L.A. (author)
Models for glacial isostatic adjustment (GIA) can provide constraints on rheology of the mantle if past ice thickness variations are assumed to be known. The Pleistocene ice loading histories that are used to obtain such constraints are based on an a priori 1-D mantle viscosity profile that assumes a single deformation mechanism for mantle rocks...
journal article 2013
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Root, B.C. (author), Van der Wal, W. (author), Novak, P. (author), Ebbing, J. (author), Vermeersen, L.L.A. (author)
In the central part of Fennoscandia, the crust is currently rising, because of the delayed response of the viscous mantle to melting of the Late Pleistocene ice sheet. This process, called Glacial Isostatic Adjustment (GIA), causes a negative anomaly in the present-day static gravity field as isostatic equilibrium has not been reached yet....
journal article 2015
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Huang, J. (author), Halpenny, J. (author), Van der Wal, W. (author), Klatt, C. (author), James, T.S. (author), Rivera, A. (author)
Groundwater is a primary hydrological reservoir of the Great Lakes Water Basin (GLB), which is an important region to both Canada and US in terms of culture, society and economy. Due to insufficient observations, there is a knowledge gap about groundwater storage variation and its interaction with the Great Lakes. The objective of this study is...
journal article 2012
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