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Massimo Guerrero, Nils Rüther, Ricardo Szupiany, Stefan Haun, Sandor Baranya, Francisco Latosinski
Pág. 1 - 22
The use of echo-levels from Acoustic Doppler Current Profiler (ADCP) recordings has become more and more common for estimating suspended bed-material and wash loads in rivers over the last decade. Empirical, semi-empirical and physical-based acoustic met...
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Yujing Lin, Fei Yuan and En Cheng
Broadband Acoustic Doppler Current Profiler (BBADCP) is a widely used technology in velocity measurements. To adapt to the varied water environment and different measurement requirements, flexible tuning of transmitted signal parameters will improve the ...
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Andrea Bordone, Tiziana Ciuffardi, Giancarlo Raiteri, Antonio Schirone, Roberto Bozzano, Sara Pensieri, Francesca Pennecchi and Paola Picco
Current measurements in the open sea are generally acquired by Acoustic Doppler Current Profilers (ADCPs). In the case of ADCPs mounted on spar buoy, current profiles require to be post-processed, to properly take into account the buoy influence: in fact...
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Jeong-Yeob Chae, Chanhyung Jeon, Pyeongjoong Kim, Naoki Hirose, Ahyoung Ku and Jae-Hun Park
Typhoon-induced strong winds can dramatically change the oceanic environment, occasionally resulting in sudden stratification changes. In July 2015, two consecutive typhoons, Chanhom and Nangka, passed over the Yellow and East/Japan Seas within a week. R...
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Simona Saviano, Daniela Cianelli, Enrico Zambianchi, Fabio Conversano and Marco Uttieri
Surface gravity waves retrieved by a network of HF (High Frequency) radars and measured in situ by an ADCP (Acoustic Doppler Current Profiler) current meter connected to an elastic beacon were used to carry out a multiple-year characterization of the wav...
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Eliisa Lotsari, Michael Dietze, Maria Kämäri, Petteri Alho and Elina Kasvi
Macro-turbulent flows (i.e., coherent flow structures reaching through the whole water column), have not been studied widely in northern seasonally frozen rivers during both open-channel and ice-covered flow conditions. Thus, we aim: (1) to detect and co...
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Guiomar Lopez and Daniel C. Conley
The coastal zone hosts a great number of activities that require knowledge of the spatial characteristics of the wave field, which in coastal seas can be highly heterogeneous. Information of this type can be obtained from HF radars, which offer attractiv...
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Hedi Kanarik, Laura Tuomi, Pekka Alenius, Mikko Lensu, Elina Miettunen and Riikka Hietala
Safe navigation in complex archipelagos requires knowledge and understanding of oceanographic conditions in the fairways. We have studied oceanographic conditions and their relation to weather in a crossing in the Finnish archipelago, which is known to h...
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Markus Foerst and Nils Rüther
In recent years, advanced methods for measuring riverbank migration have been used to understand the process of river planform evolution. However, the role of the so-called outer secondary cell in the hydraulic pattern in bank erosion remains unclear. Fo...
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Tommaso Moramarco, Silvia Barbetta and Angelica Tarpanelli
A new methodology for estimating the discharge starting from the monitoring of surface flow velocity, usurf, is proposed. The approach, based on the entropy theory, involves the actual location of maximum flow velocity, umax, which may occur below the wa...
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Elina Kasvi, Leena Laamanen, Eliisa Lotsari and Petteri Alho
The fluvio-geomorphological processes in meander bends are spatially uneven in distribution. Typically, higher velocities and erosion take place near the outer bank beyond the bend apex, while the inner bend point bar grows laterally towards the outer ba...
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Elina Kasvi, Leena Laamanen, Eliisa Lotsari, Petteri Alho
Pág. 1 - 20
The fluvio-geomorphological processes in meander bends are spatially uneven in distribution. Typically, higher velocities and erosion take place near the outer bank beyond the bend apex, while the inner bend point bar grows laterally towards the outer ba...
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Tommaso Moramarco, Silvia Barbetta, Angelica Tarpanelli
Pág. 1 - 12
A new methodology for estimating the discharge starting from the monitoring of surface flow velocity, usurf, is proposed. The approach, based on the entropy theory, involves the actual location of maximum flow velocity, umax, which may occur below the wa...
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Gastón Alejandro Priego-Hernández,Fabian Rivera-Trejo
Pág. 23 - 34
Atmósfera 29(1), 23-34 (2016)Fluid dynamics has the purpose of understanding the movement of liquids and gases by functions that describe the distribution of velocities. Some natural phenomena that present these functions are hurricanes, gene...
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Emilia Lalander, Paul Thomassen and Mats Leijon
Sufficiently accurate and low-cost estimation of tidal velocities is of importance when evaluating a potential site for a tidal energy farm. Here we suggest and evaluate a model to calculate the tidal velocity in fjord entrances. The model is compared wi...
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Ichiro Fujita
Pág. 1 - 15
The space time image velocimetry (STIV) technique is presented and shown to be a useful tool for extracting river flow information non-intrusively simply by taking surface video images. This technique is applied to measure surface velocity distributions ...
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Ichiro Fujita
The space time image velocimetry (STIV) technique is presented and shown to be a useful tool for extracting river flow information non-intrusively simply by taking surface video images. This technique is applied to measure surface velocity distributions ...
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Claude Flener, Yunsheng Wang, Leena Laamanen, Elina Kasvi, Jenni-Mari Vesakoski and Petteri Alho
The use of acoustic Doppler current profilers (ADCP) for measuring streamflow and discharge is becoming increasingly widespread. The spatial distribution of flow patterns is useful data in studying riverine habitats and geomorphology. Until now, most flo...
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Claude Flener, Yunsheng Wang, Leena Laamanen, Elina Kasvi, Jenni-Mari Vesakoski and Petteri Alho
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Pasquale Contestabile, Fabio Conversano, Luca Centurioni, Umberto Mario Golia, Luigi Musco, Roberto Danovaro and Diego Vicinanza
In this paper, the advantages of shaping a non-conventional triple collocation-based calibration of a wave propagation model is pointed out. Illustrated through a case study in the Bagnoli-Coroglio Bay (central Tyrrhenian Sea, Italy), a multi-comparison ...
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