R
Roelof Versteeg
Researcher at Idaho National Laboratory
Publications - 74
Citations - 2825
Roelof Versteeg is an academic researcher from Idaho National Laboratory. The author has contributed to research in topics: Aquifer & Groundwater. The author has an hindex of 22, co-authored 72 publications receiving 2492 citations. Previous affiliations of Roelof Versteeg include Lamont–Doherty Earth Observatory & University of California, Berkeley.
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Journal ArticleDOI
The Marmousi experience; velocity model determination on a synthetic complex data set
TL;DR: The motivation behind seismic data acquisition and processing is simple—to obtain a depth image of the earth—but performing this process correctly is extremely difficult, and large amounts of man/CPU hours are devoted to the velocity estimation.
Journal ArticleDOI
Spatial variability of arsenic in 6000 tube wells in a 25 km2 area of Bangladesh
A. van Geen,Yan Zheng,Yan Zheng,Roelof Versteeg,Martin Stute,A. Horneman,R.K. Dhar,Michael S. Steckler,Andrew Gelman,Christopher Small,Habibul Ahsan,Joseph H. Graziano,A.Z.M. Iftikhar Hussain,Kazi Matin Ahmed +13 more
TL;DR: The proportion of wells that exceed the Bangladesh standard for drinking water of 50 μg/L arsenic increases with depth from 25% between 8 and 10 m to 75% between 15 and 30 m, then declines gradually to less than 10% at 90 m as mentioned in this paper.
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Geochemical and hydrogeological contrasts between shallow and deeper aquifers in two villages of Araihazar, Bangladesh: Implications for deeper aquifers as drinking water sources
Y. Zheng,Y. Zheng,A. van Geen,Martin Stute,Martin Stute,R.K. Dhar,Z. Mo,Zhongqi Cheng,A. Horneman,A. Horneman,Ittai Gavrieli,H. J. Simpson,H. J. Simpson,Roelof Versteeg,Michael S. Steckler,A. Grazioli-Venier,Steven L. Goodbred,M. Shahnewaz,Mohammad Shamsudduha,Mohammad A. Hoque,Kazi Matin Ahmed +20 more
Journal ArticleDOI
Improved hydrogeophysical characterization and monitoring through parallel modeling and inversion of time-domain resistivity andinduced-polarization data
TL;DR: A parallel distributed-memory forward and inverse modeling algorithm for analyzing resistivity and time-domain induced polar-ization (IP) data and its primary components include distributed computation of the pole solutions in parallel computing environments.
Proceedings ArticleDOI
Marmousi, model and data
TL;DR: In 1988, a complex 2D model was created and synthetic seismic data were generated from this model by the IFP for the blind test of the Copenhagen workshop as mentioned in this paper, where the authors described the philosophy bebind the model and the creation of model and data.