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Maheng, M.D. (author), Bhattacharya, Biswa (author), Zevenbergen, C. (author), Pathirana, Assela (author)The increasing global population and in-country migration have a significant impact on global land use land cover (LULC) change, which reduces green spaces and increases built-up areas altering the near-surface radiation and energy budgets, as well as the hydrological cycle over an urban area. The LULC change can lead to a combination of hazards...journal article 2024
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van As, K. (author), Simons, Bram A. (author), Kleijn, C.R. (author), Kenjeres, S. (author), Bhattacharya, N. (author)We study how the speckle contrast depends on scatterer velocity, with the goal of further developing laser speckle imaging as a quantitative measurement technique. To that end, we perform interferometric computer simulations on a dilute plug flow. The results of our numerical experiment, that we compare with known analytical expressions to...journal article 2022
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Mandal, Dipankar (author), Kumar, V. (author), Lopez-Sanchez, Juan M. (author), Rao, Y. S. (author), McNairn, Heather (author), Bhattacharya, Avik (author), Mitchell, Scott (author)Biophysical parameters are descriptors of crop growth and production estimates. Retrieval of these biophysical parameters from synthetic aperture radar sensors at operational scales is highly interesting given the increase in access to data from radar missions. Vegetation backscattering can be simulated using the water cloud model (WCM). Crop...book chapter 2022
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van As, K. (author), Dellevoet, S. F.L.J. (author), Boterman, J. (author), Kleijn, C.R. (author), Bhattacharya, N. (author), Kenjeres, S. (author)The disease atherosclerosis causes stenosis inside the patient's arteries, which often eventually turns lethal. Our goal is to detect a stenosis in a non-invasive manner, preferably in an early stage. To that end, we study whether and how laser speckle contrast imaging (LSCI) can be deployed. We start out by using computational fluid dynamics...journal article 2022
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Ahmed, Nabeela (author), Baker, Alexander G. (author), Bhattacharya, Akash (author), Cawood, Sally (author), Cabrera Pacheco, Ana Julia (author), Daniel, Mallo Maren (author), Grandi, Matheus (author), Lata, Lutfun Nahar (author), Verbeek, T. (author)We are an international collective of Early Career Academics (ECAs) who met throughout 2020 to explore the implications of COVID-19 on precarious academics. With this intervention, our aims are to voice commonly shared experiences and concerns and to reflect on the extent to which the pandemic offers opportunities to redefine Higher Education...journal article 2022
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Wu, Z. (author), Bhattacharya, Biswa (author), Xie, Ping (author), Zevenbergen, C. (author)Flash Flood Guidance (FFG) is a rainfall threshold which initiates flooding in streams. It merely provides a binary output (yes or no) which has large uncertainties in forecasting. In this paper, we propose a new method by combining FFG with the Frequentist method to present the probability of flash flood occurrence based on historical...journal article 2022
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de Mooij, Jan (author), Dell'Anna, D. (author), Bhattacharya, Parantapa (author), Dastani, Mehdi (author), Logan, Brian (author), Swarup, Samarth (author)Simulation is a useful tool for evaluating behavioral interventions when the adoption rate among a population is uncertain. Individual agent models are often prohibitively expensive, but, unlike stochastic models, allow studying compliance heterogeneity. In this paper we demonstrate the feasibility of evaluating behavioral intervention...journal article 2022
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Young, A.T. (author), Bhattacharya, Biswa (author), Zevenbergen, C. (author)Rapidly expanding cities in the Middle Eastern and North African (MENA) region are at risk of flooding due to heavy rainfall, insufficient drainage capacity, a lack of preparedness and insufficient data to conduct required studies. A low regret Early Warning Systems (EWS) using rainfall thresholds is proposed as a cost-effective short-term...journal article 2021
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Hei, K. (author), Anandarajah, Kaszubowska (author), Martin, Eamonn P. (author), Shi, Guang (author), Anandarajah, Prince M. (author), Bhattacharya, N. (author)The measurement of distance plays an important role in many aspects of modern societies. In this paper, an absolute distance measurement method for arbitrary distance is proposed and demonstrated using mode-resolved spectral interferometry with a gain-switched dual comb. An accuracy of 12 µm, when compared to a He-Ne fringe counting laser...journal article 2021
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Hosseini, Mehdi (author), McNairn, Heather (author), Mitchell, Scott (author), Robertson, Laura Dingle (author), Davidson, Andrew (author), Ahmadian, Nima (author), Bhattacharya, Avik (author), Borg, Erik (author), Kumar, V. (author)The water cloud model (WCM) can be inverted to estimate leaf area index (LAI) using the intensity of backscatter from synthetic aperture radar (SAR) sensors. Published studies have demonstrated that the WCM can accurately estimate LAI if the model is effectively calibrated. However, calibration of this model requires access to field measures...journal article 2021
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Shettigar, Nithin Achutha (author), Bhattacharya, Biswa (author), Mészáros, L. (author), Spinosa, A. (author), El Serafy, G.Y.H. (author)During the past decades, the aquaculture industry has developed rapidly, due to drop in wild fish catch. Water quality variables play major role in aquaculture operations, specifically seawater temperature has major impact on the metabolism of the fish species and therefore on the growth rate too. Since the fish farming business relies on the...journal article 2020
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Shi, G. (author), Hei, K. (author), Wang, Wen (author), Bhattacharya, N. (author)Distance measurement using frequency sweeping interferometry is an absolute distance measurement technique that allows for high accuracy over long distances. Notwithstanding, the measurement accuracy is affected by laser sweeping nonlinearity and limited sweeping range. In this work, an optimized post-processing linearization method is...journal article 2020
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Ahmad, Arslan (author), van der Wens, Patrick (author), Baken, Kirsten (author), de Waal, Luuk (author), Bhattacharya, Prosun (author), Stuyfzand, Pieter Jan (author)Arsenic (As) is a highly toxic element which naturally occurs in drinking water. In spite of substantial evidence on the association between many illnesses and chronic consumption of As, there is still a considerable uncertainty about the health risks due to low As concentrations in drinking water. In the Netherlands, drinking water companies...review 2020
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van As, K. (author), Boterman, Jorne (author), Kleijn, C.R. (author), Kenjeres, S. (author), Bhattacharya, N. (author)Laser speckle imaging (LSI) can be used to study dynamic processes in turbid media, such as blood flow. However, it is presently still challenging to obtain meaningful quantitative information from speckle, mainly because speckle is the interferometric summation of multiply scattered light. Consequently, speckle represents a convolution of...journal article 2019
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Mastrantonas, Nikolaos (author), Bhattacharya, Biswa (author), Shibuo, Yoshihiro (author), Rasmy, Mohamed (author), Espinoza-Dávalos, Gonzalo (author), Solomatine, D.P. (author)After the launch of the Global Precipitation Measurement (GPM) mission in 2014, many satellite precipitation products (SPPs) are available at finer spatiotemporal resolution and/or with reduced latency, potentially increasing the applicability of SPPs for near-real-time (NRT) applications. Therefore, there is a need to evaluate the NRT SPPs...journal article 2019
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Hei, K. (author), Shi, Guang (author), Hänsel, A. (author), Deng, Z. (author), Latkowski, Sylwester (author), Van Den Berg, Steven A. (author), Bente, Erwin (author), Bhattacharya, N. (author)The measurement of distance plays an integral part in many aspects of modern societies. In this paper an integrated mode-locked laser on a chip is used for distance measurement based on mode-resolved interferometry. The emission from the on-chip source with a repetition rate of 2.5 GHz and a spectral bandwidth of 3 nm is coupled into a...journal article 2019
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- Bhattacharya, N. (author), Cui, M. (author), Zeitouny, M. (author), Urbach, Paul (author), van den Berg, S. (author) conference paper 2018
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Wei, L. (author), Bhattacharya, N. (author), Urbach, Paul (author)We describe a method to control the directional scattering of a high-index dielectric nanosphere, which utilizes the unique focusing properties of an azimuthally polarized phase vortex and a radially polarized beam to independently excite inside the nanosphere a spinning magnetic dipole and a linearly polarized electric dipole mode normal to the...journal article 2017
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Latkowski, S (author), Van Veldhoven, P. J. (author), Hänsel, A. (author), D'Agostino, D. (author), Rabbani-Haghighi, H. (author), Docter, B. (author), Bhattacharya, N. (author), Thijs, P. J A (author), Ambrosius, H. P M M (author), Smit, M (author), Williams, KA (author), Bente, E.A.J.M. (author)In this paper a generic monolithic photonic integration technology platform and tunable laser devices for gas sensing applications at 2 μm will be presented. The basic set of long wavelength optical functions which is fundamental for a generic photonic integration approach is realized using planar, but-joint, active-passive integration on...conference paper 2017
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- Hänsel, A. (author), Reyes Reyes, A. (author), Persijn, ST (author), Urbach, Paul (author), Bhattacharya, N. (author) journal article 2017