Searched for: subject%3A%22Distributed%255C+Temperature%255C+Sensing%22
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Dirks, Dylan (author)PWN is responsible for supplying sufficient quantities of high-quality water to its customers. The growing population and the effects of climate change, such as heat waves and droughts, are straining the capacity of the water supply network, especially during dry and warm periods when water demand increases. A significant portion of the drinking...master thesis 2023
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Verouden, Iris (author)Weather and climate models require knowledge about the surface temperature and surface heat flux to make predictions for climatology, farming, wind power prediction, etc. Most current models make use of Monin-Obukhov Similarity Theory (MOST). This theory expresses multiple turbulent fluxes in terms of their mean gradients with height. MOST...master thesis 2023
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Dai, Y. (author), Boekee, J. (author), Schilperoort, B. (author), ten Veldhuis, Marie-claire (author), van de Wiel, B.J.H. (author)Wind machines have been increasingly used for frost damage mitigation in the agricultural community. During radiative frost nights, wind machines are used to erode near-surface thermal inversion by air mixing. The underlying mixing processes remain poorly understood. A full picture of warming effects caused by air mixing requires measurements...journal article 2023
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Vis, Gijs (author)Experiments using fiber-optical set-ups for distributed temperature sensing (DTS) were conducted in the LIAISE (Land surface Interactions with the Atmosphere over the Iberian Semi-arid Environment) field campaign during 15-30 July 2021 in the north-east of Spain. Three DTS set-ups were installed to measure temperature profiles along varying...master thesis 2022
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de Roos, Simone (author)One-third of the Dutch dike system consists of peat dikes. Drought causes these dikes to crack and fail more easily. Visual dike inspections are therefore inefficient, especially considering the increasing climate changes of the future. Research has shown that a fiber optic sensor cable (FOS), used in distributed temperature sensing (DTS), can...master thesis 2022
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Schilperoort, B. (author)Forests cover a large part of the globe, and are responsible for a large amount of evaporation and the fixation of carbon. To be able to better understand this atmospheric exchange of forests, and how the forests will behave under future climate change, both accurate measurements as well as models are required. However, due to their height and...doctoral thesis 2022
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Panasiuk, Oleksandr (author), Hedström, Annelie (author), Langeveld, J.G. (author), Viklander, Maria (author)Infiltration and inflow (I/I) into sanitary sewers causes numerous negative effects on the whole wastewater management system and ultimately, on the receiving waters. Consequently, a number of methods have been developed to analyse the performance of sewer systems with respect to I/I, including: distributed temperature sensing (DTS), closed...journal article 2022
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Schilperoort, B. (author), Coenders-Gerrits, Miriam (author), JIMENEZ RODRIGUEZ, C.D. (author), van Hooft, J.A. (author), van de Wiel, B.J.H. (author), Savenije, Hubert (author)Despite the importance of forests in the water and carbon cycles, accurately measuring their contribution remains challenging, especially at night. During clear-sky nights current models and theories fail, as non-turbulent flows and spatial heterogeneity become more important. One of the standing issues is the ‘decoupling’ of the air masses...journal article 2022
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Draganov, D.S. (author), Ma, X. (author), Buisman, M. (author), Kiers, Tjeerd (author), Heller, H.K.J. (author), Kirichek, Alex (author)In ports and waterways, the bathymetry is regularly surveyed for updating navigation charts ensuring safe transport. In port areas with fluid-mud layers, most traditional surveying techniques are accurate but are intrusive and provide one-dimensional measurements limiting their application. Current non-intrusive surveying techniques are less...book chapter 2021
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Van Ballaer, Frederik (author)This research has demonstrated the applicability of a DTS system to estimate the volumetric water content in saturated mud material. 2 samples of synthetically generated mud and 1 sample of natural mud from the port of Rotterdam were investigated, first by conventional methods and subsequently also with DTS. The system set-up and heating...master thesis 2020
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des Tombe, B.F. (author), Schilperoort, B. (author), Bakker, M. (author)Distributed temperature sensing (DTS) systems can be used to estimate the temperature along optic fibers of several kilometers at a sub-meter interval. DTS systems function by shooting laser pulses through a fiber and measuring its backscatter intensity at two distinct wavelengths in the Raman spectrum. The scattering-loss coefficients for...journal article 2020
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Izett, J.G. (author), Schilperoort, Bart (author), Coenders-Gerrits, Miriam (author), Baas, P. (author), Bosveld, Fred C. (author), van de Wiel, B.J.H. (author)Conventional in situ observations of meteorological variables are restricted to a limited number of levels near the surface, with the lowest observation often made around 1-m height. This can result in missed observations of both shallow fog, and the initial growth stage of thicker fog layers. At the same time, numerical experiments have...journal article 2019
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Panasiuk, Oleksandr (author), Hedström, Annelie (author), Langeveld, J.G. (author), de Haan, Cornelis (author), Liefting, Erik (author), Schilperoort, Remy (author), Viklander, Maria (author)Infiltration and inflow (I/I) into sewers cause negative effects on the sewer system, wastewater treatment plant and environment. Identifying the causes and locating the inflows is necessary in order to address the I/I problem. This paper focuses on using distributed temperature sensing (DTS) for identifying, locating and characterising I/I...journal article 2019
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Solcerova, A. (author), van de Ven, F.H.M. (author), van de Giesen, N.C. (author)One of the processes by which open water cools the air during hot summer days is by storing the heat and increasing its own temperature. This heat is then released at night. The aim of this paper is to analyze this cooling process by quantifying the magnitude of turbulent, latent and sensible, heat fluxes in comparison to radiative and ground...journal article 2019
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Hagedooren, Hugo (author)In deep polders in the Netherlands the dominant mechanism of salinization is via intense seepage through boils. These are local connections between the surface water and a deep saline aquifer. The study area of this research is the Lissertocht. This catchment, which is located inside the Haarlemmermeerpolder, contains a lot of boils that can...master thesis 2018
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Hilgersom, K.P. (author)This thesis explores a new measuring approach to quantify the seepage flux from boils. Boils are preferential groundwater seeps and are a consequence of the groundwater flow that works its way through the soil matrix by creating vents of higher conductive material. In the Netherlands, boils often occur in deep polders (reclaimed lakes situated 4...doctoral thesis 2017
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Spruit, R. (author), van Tol, A.F. (author), Broere, W. (author), Doornenbal, Pieter (author), Hopman, Victor (author)Distributed temperature sensing (DTS) can be used to monitor the production process of diaphragm walls. DTS is able to differentiate between already present or fresh bentonite suspensions during refreshing of the bentonite slurry in the trench. During concrete casting, DTS is able to differentiate between the bentonite suspension and concrete...journal article 2017
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- Dong, J. (author) doctoral thesis 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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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
Searched for: subject%3A%22Distributed%255C+Temperature%255C+Sensing%22
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