document

Accurately measuring volume of soil samples using low cost Kinect 3D scanner

Van der Sterre, B.S. (author), Hut, R.W. (author), Van de Giesen, N.C. (author)

Abstract.

journal article 2013

document

Modeling of over lake wind profile for estimating water surface evaporation using land-based meteorological data

Abbasi, A. (author), Van de Giesen, N.C. (author)

journal article 2013

document

Energy balance measurements over a small reservoir in Ghana's upper east region

Van de Giesen, N.C. (author), Annor, F.O. (author)

journal article 2013

document

Dutch national rainfallradar project: A unique corporation

Schuurmans, H. (author), Verbree, J.M. (author), Leijnse, H. (author), van Heeringen, K.J. (author), Uijlenhoet, R. (author), Bierkens, M. (author), Van de Giesen, N.C. (author), Gooijer, J. (author), Van den Houten, G. (author)

journal article 2013

document

Measuring heat balance residual at lake surface using distributed temperature sensing

Van Emmerik, T.H.M. (author), Rimmer, A. (author), Lechinsky, Y. (author), Wenker, K.J.R. (author), Nussboim, S. (author), Van de Giesen, N.C. (author)

This research presents a new method to verify the measurements of surface fluxes and the heat balance at a lake surface, by means of Distributed Temperature Sensing (DTS) measurements from 0.5 m above to 1.5 m below the surface. Using a polyvinyl chloride hyperboloid construction, a floating standalone measuring device was developed. Being an...

journal article 2013

document

Medicinal footprint of the population of the Rhine basin

Hut, R. (author), Van de Giesen, N. (author), Houtman, C.J. (author)

The relation between pharmaceutical residues along the river Rhine and the demographic characteristics of the upstream population was studied. A sampling campaign was performed in which water samples from the Rhine were taken at 42 locations. Measurements were compared to a two parameter model with regional demographic data as main input. For 12...

journal article 2013

document

Data compression to define information content of hydrological time series

Weijs, S.V. (author), Van de Giesen, N.C. (author), Parlange, M.B. (author)

When inferring models from hydrological data or calibrating hydrological models, we are interested in the information content of those data to quantify how much can potentially be learned from them. In this work we take a perspective from (algorithmic) information theory, (A)IT, to discuss some underlying issues regarding this question. In the...

journal article 2013

document

eWaterCycle: Real time assimilation of massive data streams into a hyper-resolution global hydrological model

Hut, R.W. (author), Sutanudjaja, E. (author), Drost, N. (author), Dunne, S.C. (author), De Jong, K. (author), Van Beek, L. (author), Van de Giesen, N.C. (author), Bierkens, M. (author)

journal article 2013

document

HydroZIP: How hydrological knowledge can be used to improve compression of hydrological data

Weijs, S.V. (author), Van de Giesen, N. (author), Parlange, M.B. (author)

From algorithmic information theory, which connects the information content of a data set to the shortest computer program that can produce it, it is known that there are strong analogies between compression, knowledge, inference and prediction. The more we know about a data generating process, the better we can predict and compress the data. A...

journal article 2013

document

The trans-african hydro-meteorological observatory: Early results from the crowd sourcing competition

Van de Giesen, N.C. (author), Hilkhuijsen, T.M. (author), Hut, R.W. (author), Andreini, M. (author), Selker, J. (author)

Abstract.

journal article 2013

document

eWaterCycle: Developing a hyper resolution global hydrological model

Sutanudjaja, E. (author), Hut, R.W. (author), Drost, N. (author), Steele-Dunne, S.C. (author), De Jong, K. (author), Van Beek, L. (author), Karssenberg, D. (author), Van de Giesen, N.C. (author), Bierkens, M. (author)

journal article 2013

document

Design and field test of a robust acoustic disdrometer for distributed rainfall observations

Hut, R.W. (author), De Jong, S. (author), Van de Giesen, N.C. (author), Leijnse, H. (author), De Haij, M. (author)

Abstract.

journal article 2013

document

Data compression to define information content of hydrological time series

Weijs, S.V. (author), Van de Giesen, N. (author), Parlange, M.B. (author)

When inferring models from hydrological data or calibrating hydrological models, we might be interested in the information content of those data to quantify how much can potentially be learned from them. In this work we take a perspective from (algorithmic) information theory (AIT) to discuss some underlying issues regarding this question. In...

journal article 2013

document

Application of multi attribute decision making methods to resources allocation problems

Mianabadi, H. (author), Van de Giesen, N.C. (author), Mostert, E. (author), Sheikhmohammady, M. (author)

Operation of over shared resources (water, gas, oil, and mineral reserves) has been one the most significant challenges of states. “Fair” and “efficient” national resources reallocation among stakeholders and states is a complex conflict problem that faces this fundamental question: which criteria and mechanisms should be taken into account for...

conference paper 2012

document

Learning from Collaborative Research in Water Management Practice

Raadgever, G.T. (author), Mostert, E. (author), Van de Giesen, N.C. (author)

In order to deal with complex water management problems, it is increasingly claimed that researchers should collaborate with authorities and other stakeholders. According to the literature, such collaboration can enhance cognitive learning about the issues at stake, but there is little empirical evidence for this. In this paper, we assess...

journal article 2012

document

Double-ended calibration of fiber-optic Raman spectra distributed temperature sensing data

Van de Giesen, N.C. (author), Steele-Dunn, S.C. (author), Jansen, J. (author), Hoes, O.A.C. (author), Hausner, M.B. (author), Tyler, S. (author), Selker, J. (author)

Over the past five years, Distributed Temperature Sensing (DTS) along fiber optic cables using Raman backscattering has become an important tool in the environmental sciences. Many environmental applications of DTS demand very accurate temperature measurements, with typical RMSE < 0.1 K. The aim of this paper is to describe and clarify the...

journal article 2012

document

Carbon monoxide as a tracer of gas transport in snow and other natural porous media

Huwald, H. (author), Selker, J.S. (author), Tyler, S.W. (author), Calaf, M. (author), Van de Giesen, N.C. (author), Parlange, M.B. (author)

The movement of air in natural porous media is complex and challenging to measure. Yet gas transport has important implications, for instance, for the evolution of the seasonal snow cover and for water vapor transport in soil. A novel in situmulti-sensor measurement system providing high-resolution observation of gas transport in snow is...

journal article 2012

document

Reply to comment by Keith J. Beven and Hannah L. Cloke on "Hyperresolution global land surface modeling: Meeting a grand challenge for monitoring earth's terrestrial water"

Wood, E.F. (author), Roundy, J.K. (author), Troy, T.J. (author), Van de Beek, R. (author), Bierkens, M. (author), Blyth, E. (author), De Roo, A. (author), Doll, P. (author), Famiglietti, J. (author), Gochis, D. (author), Van de Giesen, N.C. (author), Houser, P. (author), Jaffe, P. (author), Kollet, S. (author), Lehner, B. (author), Lettenmaier, D.P. (author), Peters-Lidard, C. (author), Sivapalan, M. (author), Sheffield, J. (author), Wade, A.J. (author), Whitehead, P. (author)

journal article 2012

document

Calibrating single-ended fiber-optic raman spectra distributed temperature sensing data

Hausner, M.B. (author), Suarez, F. (author), Glander, K.E. (author), Van de Giesen, N.C. (author), Selker, J.S. (author), Tyler, S.W. (author)

Hydrologic research is a very demanding application of fiber-optic distributed temperature sensing (DTS) in terms of precision, accuracy and calibration. The physics behind the most frequently used DTS instruments are considered as they apply to four calibration methods for single-ended DTS installations. The new methods presented are more...

journal article 2011

document

Influence of tree age and variety on allometric characteristics and water use of Mangifera indica L. growing in plantation

Oguntunde, P.G. (author), fasinmirin, J.T. (author), Van de Giesen, N.C. (author)

Data on water relations and growth characteristics of mango trees needed for productive plantation management are currently lacking in West Africa. Relationships between allometric properties and water use in mango trees were examined. In addition, the effects on allometric characteristics and xylem sap flow were investigated in a mixed...

journal article 2011