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Wen, Y. (author), Schoups, G.H.W. (author), van de Giesen, N.C. (author)In many regions of the world, intensive livestock farming has become a significant source of organic river pollution. As the international meat trade is growing rapidly, the environmental impacts of meat production within one country can occur either domestically or internationally. The goal of this paper is to quantify the impacts of the...journal article 2018
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Abbasi, A. (author), Annor, F.O. (author), van de Giesen, N.C. (author)In this study, a framework for simulating the flow field and heat transfer processes in small shallow inland water bodies has been developed. As the dynamics and thermal structure of these water bodies are crucial in studying the quality of stored water , and in assessing the heat fluxes from their surfaces as well, the heat transfer and...journal article 2017
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Dezfuli, Amin K. (author), Ichoku, Charles M. (author), Huffman, George J. (author), Mohr, Karen I. (author), Selker, John S. (author), van de Giesen, N.C. (author), Hochreutener, Rebecca (author), Annor, F.O. (author)Understanding of hydroclimatic processes in Africa has been hindered by the lack of in situ precipitation measurements. Satellite-based observations, in particular, the TRMM Multisatellite Precipitation Analysis (TMPA) have been pivotal to filling this void. The recently released Integrated Multisatellite Retrievals for GPM (IMERG) project...journal article 2017
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Dong, J. (author), Agliata, Rosa (author), Steele-Dunne, S.C. (author), Hoes, O.A.C. (author), Bogaard, T.A. (author), Greco, Roberto (author), van de Giesen, N.C. (author)Several recent studies have highlighted the potential of Actively Heated Fiber Optics (AHFO) for high resolution soil moisture mapping. In AHFO, the soil moisture can be calculated from the cumulative temperature (T<sub>cum</sub>), the maximum temperature (T<sub>max</sub>), or the soil thermal conductivity determined from the cooling phase...journal article 2017
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Ceperley, Natalie C. (author), Mande, Theophile (author), van de Giesen, N.C. (author), Tyler, Scott (author), Yacouba, Hamma (author), Parlange, Marc B. (author)Rain-fed farming is the primary livelihood of semi-arid west Africa. Changes in land cover have the potential to affect precipitation, the critical resource for production. Turbulent flux measurements from two eddy-covariance towers and additional observations from a dense network of small, wireless meteorological stations combine to relate...journal article 2017
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Cristiano, E. (author), ten Veldhuis, Marie-claire (author), van de Giesen, N.C. (author)In urban areas, hydrological processes are characterized by high variability in space and time, making them sensitive to small-scale temporal and spatial rainfall variability. In the last decades new instruments, techniques, and methods have been developed to capture rainfall and hydrological processes at high resolution. Weather radars have...journal article 2017
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van Emmerik, T.H.M. (author), Steele-Dunne, S.C. (author), Paget, Aaron (author), Oliveira, Rafael S. (author), Bittencourt, Paulo R.L. (author), Barros, Fernanda de V. (author), van de Giesen, N.C. (author)The Amazon rainforest plays an important role in the global water and carbon cycle, and though it is predicted to continue drying in the future, the effect of drought remains uncertain. Developments in remote sensing missions now facilitate large-scale observations. The RapidScat scatterometer (K<sub>u</sub> band) mounted on the International...journal article 2017
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Abbasi, A. (author), Annor, F.O. (author), van de Giesen, N.C. (author)Atmospheric stability conditions over the water surface can affect the evaporative and convective heat fluxes from the water surface. Atmospheric instability occurred 72.5% of the time and resulted in 44.7 and 89.2% increases in the average and maximum estimated evaporation, respectively, when compared to the neutral condition for a small...journal article 2017
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van Emmerik, T.H.M. (author), Steele-Dunne, S.C. (author), Hut, R.W. (author), Gentine, Pierre (author), Guerin, Marceau (author), Oliveira, Rafael (author), Wagner, Jim (author), Selker, John (author), van de Giesen, N.C. (author)Trees play a crucial role in the water, carbon and nitrogen cycle on local, regional and global scales. Understanding the exchange of momentum, heat, water, and CO 2 between trees and the atmosphere is important to assess the impact of drought, deforestation and climate change. Unfortunately, ground measurements of tree properties such as mass...journal article 2017
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Hut, R.W. (author), van de Giesen, N.C. (author), Drost, N (author)The suggestions by Hutton et al. might not be enough to guarantee reproducible computational hydrology. Archiving software code and research data alone will not be enough. We add to the suggestion of Hutton et al. that hydrologists not only document their (computer) work, but that hydrologists use the latest best practices in designing...journal article 2017
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Davids, J.C. (author), van de Giesen, N.C. (author), Rutten, M.M. (author)Hydrologic data has traditionally been collected with permanent installations of sophisticated and accurate but expensive monitoring equipment at limited numbers of sites. Consequently, observation frequency and costs are high, but spatial coverage of the data is limited. Citizen Hydrology can possibly overcome these challenges by leveraging...journal article 2017
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Wen, Y. (author), Schoups, G.H.W. (author), van de Giesen, N.C. (author)Organic pollution of rivers by wastewater discharge from human activities negatively impacts people and ecosystems. Without treatment, pollution control relies on a combination of natural degradation and dilution by natural runoff to reduce downstream effects. We quantify here for the first time the global sanitation crisis through its impact...journal article 2017
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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
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Seyoum, S.D. (author), Alfonso, Leonardo (author), Andel, Schalk Jan Van (author), Koole, W. (author), Groenewegen, A.C. (author), van de Giesen, N.C. (author)Waternomics is a European Union-funded research project aspiring to develop and introduce Information and Communication Technology (ICT) as an enabling technology to manage water as a resource, increase end-user conservation awareness, affect behavioural changes and avoid water losses through leak detection. Existing leakage detection methods...journal article 2017
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Solcerova, A. (author), van de Ven, F.H.M. (author), Wang, Mengyu (author), Rijsdijk, Michiel (author), van de Giesen, N.C. (author)Rapid urbanization and an increasing number and duration of heat waves poses a need to mitigate extremely high temperatures. One of the repeatedly suggested measures to moderate the so called urban heat island are green roofs. This study investigates several extensive sedum-covered green roofs in Utrecht (NL) and their effect on air...journal article 2017
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Hoes, O.A.C. (author), Meijer, LJJ (author), van der Ent, R.J. (author), van de Giesen, N.C. (author)Population growth, increasing energy demand and the depletion of fossil fuel reserves necessitate a search for sustainable alternatives for electricity generation. Hydropower could replace a large part of the contribution of gas and oil to the present energy mix. However, previous high-resolution estimates of hydropower potential have been local...journal article 2017
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Lu, Y. (author), Steele-Dunne, S.C. (author), Farhadi, Leila (author), van de Giesen, N.C. (author)Surface heat fluxes play a crucial role in the surface energy and water balance. In situ measurements are costly and difficult, and large-scale flux mapping is hindered by surface heterogeneity. Previous studies have demonstrated that surface heat fluxes can be estimated by assimilating land surface temperature (LST) and soil moisture to...journal article 2017
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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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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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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