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- Westhoff, M.C. (author), Savenije, H.H.G. (author), Luxemburg, W.M.J. (author), Stelling, G.S. (author), van de Giesen, N.C. (author), Selker, J.S. (author), Pfister, L. (author), Uhlenbrook, S. (author) journal article 2007
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Jeu, Richard A.M. (author), Wagner, W. (author), Holmes, T. R.H. (author), Dolman, A. J. (author), van de Giesen, N.C. (author), Friesen, J (author)Within the scope of the upcoming launch of a new water related satellite mission (SMOS) a global evaluation study was performed on two available global soil moisture products. ERS scatterometer surface wetness data was compared to AMSR-E soil moisture data. This study pointed out a strong similarity between both products in sparse to moderate...journal article 2008
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Abbasi, A. (author), van de Giesen, N.C. (author)In many parts of the world, the available water resources are now being used close to their limits. Global climate change, the increasing population of the earth and ever-increasing standards of living and consequent growing demand of water are bringing water sustainability into sharp focus. Evaporation as a major component of the hydrologic...conference paper 2014
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Abbasi, A. (author), van de Giesen, N.C. (author)A three-dimensional time-dependent hydrodynamic and heat transport model of Lake Binaba, a shallow and small dam reservoir in Ghana, emphasizing the simulation of dynamics and thermal structure has been developed. Most numerical studies of temperature dynamics in reservoirs are based on one- or two-dimensional models. These models are not...conference paper 2014
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Van Emmerik, T.H.M. (author), Dunne, S.C. (author), Judge, J. (author), van de Giesen, N.C. (author)Microwave backscatter from vegetated surfaces is influenced by vegetation structure and vegetation water content (VWC), which varies with meteorological conditions and moisture in the root zone. Radar backscatter observations are used for many vegetation and soil moisture monitoring applications under the assumption that VWC is constant on short...journal article 2014
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Cristiano, E. (author), ten Veldhuis, Marie-claire (author), van de Giesen, N.C. (author)Flooding in urban areas is one of the main weather-related risk problems of the last decades. It is due to the fact that the population is growing and moving from the rural areas to the cities, which become more urbanized and densely populated. This phenomenon is combined with the climate changes of the last years, that present an increase of...conference paper 2015
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Hoes, O.A.C. (author), van de Giesen, N.C. (author)These lecture notes are part of the course entitled ‘Polders’ given in the academic year 2014-2015 by the Water Resources Section of the faculty of Civil Engineering, Delft University of Technology.lecture notes 2015
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Cortes Arevalo, V.J. (author), Sterlacchini, S (author), Bogaard, T.A. (author), Junier, S.J. (author), van de Giesen, N.C. (author)First-level inspections could be provided by skilled volunteers or technicians to pre-screen the functional status of check dams. This paper discusses the design and testing of a support method in collaboration with the responsible technicians in evaluating inspection reports. Reports are based on linguistic rating scales that are systematically...journal article 2016
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van Emmerik, T.H.M. (author), Steele-Dunne, S.C. (author), Judge, J (author), van de Giesen, N.C. (author)Radar backscatter from vegetated surface is sensitive to direct backscatter from the canopy, and two-way attenuation of the signal as it travels through the canopy. Both mechanisms are affected by the dielectric properties of {the individual elements of the canopy, which are primarily a function of water content.} Leaf water content of corn can...journal article 2016
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van Bemmelen, C. W T (author), Mann, M. (author), de Ridder, M.P. (author), Rutten, M.M. (author), van de Giesen, N.C. (author)Quantification of human impact on water, sediment, and nutrient fluxes at the global scale demands characterization of reservoirs with an accuracy that is presently unavailable. This letter presents a new method, based on virtual dam placement, to make accurate estimations of area-volume relationships of large reservoirs, using solely readily...journal article 2016
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Lu, Y. (author), Dong, J. (author), Steele-Dunne, S.C. (author), van de Giesen, N.C. (author)Surface heat fluxes interact with the overlying atmosphere and play a crucial role in meteorology, hydrology, and climate change studies, but in situ observations are costly and difficult. It has been demonstrated that surface heat fluxes can be estimated from assimilation of land surface temperature (LST). One approach is to estimate a neutral...journal article 2016
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Abbasi, A. (author), Annor, F.O. (author), van de Giesen, N.C. (author)An unsteady fully three-dimensional model of Lake Binaba (a shallow small reservoir) in semi-arid Upper East Region of Ghana has been developed to simulate its temperature dynamics. The model developed is built on the Reynolds Averaged Navier-Stokes (RANS) equations, utilizing the Boussinesq approach. As the results of the model are...journal article 2016
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Donchyts, G. (author), Schellekens, Jaap (author), Winsemius, H.C. (author), Eisemann, E. (author), van de Giesen, N.C. (author)Accurate maps of surface water are essential for many environmental applications. Surface water maps can be generated by combining measurements from multiple sources. Precise estimation of surface water using satellite imagery remains a challenging task due to the sensor limitations, complex land cover, topography, and atmospheric conditions....journal article 2016
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Hilgersom, K.P. (author), van Emmerik, T.H.M. (author), Solcerova, A. (author), Berghuijs, W.R. (author), Selker, John (author), van de Giesen, N.C. (author)Fibre optic distributed temperature sensing (DTS) is widely applied in Earth sciences. Many applications require a spatial resolution higher than that provided by the DTS instrument. Measurements at these higher resolutions can be achieved with a fibre optic cable helically wrapped on a cylinder. The effect of the probe construction, such as its...journal article 2016
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Duerinck, H.M. (author), van der Ent, R.J. (author), van de Giesen, N.C. (author), Schoups, G.H.W. (author), Babovic, V (author), Yeh, P.J.F. (author)The lack of understanding on the soil moisture–precipitation feedback mechanisms remains a large source of uncertainty for land–atmosphere coupled models. Previous observation-based studies on the soil moisture–precipitation feedback in Illinois have shown contradictory results. This paper extends earlier research by providing a more holistic...journal article 2016
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Dong, J. (author), Steele-Dunne, S.C. (author), Ochsner, Tyson E. (author), van de Giesen, N.C. (author)This study addresses two critical barriers to the use of Passive Distributed Temperature Sensing (DTS) for large-scale, high-resolution monitoring of soil moisture. In recent research, a particle batch smoother (PBS) was developed to assimilate sequences of temperature data at two depths into Hydrus-1D to estimate soil moisture as well as...journal article 2016
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Hilgersom, K.P. (author), van de Giesen, N.C. (author), de Louw, PGB (author), Zijlema, Marcel (author)Distributed temperature sensing has proven a useful technique for geoscientists to obtain spatially distributed temperature data. When studies require high-resolution temperature data in three spatial dimensions, current practices to enhance the spatial resolution do not suffice. For example, double-diffusive phenomena induce sharp and small...journal article 2016
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Hilgersom, K.P. (author), Zijlema, Marcel (author), van de Giesen, N.C. (author)The three-dimensional (3-D) modelling of water systems involving double-diffusive processes is challenging due to the large computation times required to solve the flow and transport of constituents. In systems that approach axisymmetry around a central location, computation times can be reduced by applying a quasi 3-D axisymmetric model setup....journal article 2016
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Dong, J. (author), Steele-Dunne, S.C. (author), Ochsner, Tyson E. (author), Hatch, Christine E. (author), Sayde, Chadi (author), Selker, J.S. (author), Tyler, Scott (author), Cosh, Michael H. (author), van de Giesen, N.C. (author)This study demonstrated a new method for mapping high-resolution (spatial: 1 m, and temporal: 1 h) soil moisture by assimilating distributed temperature sensing (DTS) observed soil temperatures at intermediate scales. In order to provide robust soil moisture and property estimates, we first proposed an adaptive particle batch smoother...journal article 2016
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- Tufekci, N. (author), Schoups, G.H.W. (author), Al Faitouri, Mohamed (author), Mahapatra, P.S. (author), van de Giesen, N.C. (author), Hanssen, R.F. (author) abstract 2017