Literatura académica sobre el tema "Bedforms. Side scan sonar. ADCP"

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Artículos de revistas sobre el tema "Bedforms. Side scan sonar. ADCP"

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Wewetzer, S. F. K. "Side-scan sonar mapping of bedforms in the middle Tay Estuary, Scotland." International Journal of Remote Sensing 20, no. 3 (1999): 511–22. http://dx.doi.org/10.1080/014311699213307.

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Moscon, Daphnne Moraes Costa, and Alex Cardoso Bastos. "Occurrence of storm-generated bedforms along the inner continental shelf: Southeastern Brazil." Brazilian Journal of Oceanography 58, spe2 (2010): 45–56. http://dx.doi.org/10.1590/s1679-87592010000600006.

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Side-scan sonar surveys were carried out in two different areas on the inner continental shelf off the state of Espírito Santo (southeastern Brazil, Area 1- Guarapari Inner shelf -GUA and Area 2- Espirito Santo Bay - BES) and revealed bedforms much like those known as storm-generated bedforms. These bedforms are characterized by bands of fine sand deposited alternately over a coarse sand bottom, generating a deposit pattern of bands of fine sand intercalated with bands of coarse sand occurring between water depths of 25 to 30 m and five to eight m in GUA and ESB, respectively. In both areas, p
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Rocha, Gustavo Rodrigues da, and Helenice Vital. "MORPHOLOGICAL CHARACTERIZATION OF THE POTENGI RIVER ESTUARINE SYSTEM, NATAL (BRAZIL)." Revista Brasileira de Geofísica 33, no. 1 (2015): 141. http://dx.doi.org/10.22564/rbgf.v33i1.649.

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ABSTRACT. This study mapped the Potengi estuary riverbed (Natal-RN), located in northeastern Brazil, using high-resolution geophysics (single beam and side-scan sonar) associated with sediment samples. The imaging of subaqueous features allowed to identify the bedforms and submerged rocky outcrops. Four main groups of bedforms were identified: large 2-D and 3-D dunes, ripples and flat bottom, as well as rocky outcrops. Rocky outcrops were correlated to Barreiras Formation and beachrocks. The estuarine channel is filled mainly by Holocene sandy sediments in the main channel ranging from well-so
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Zhang, Xun, Xinglin Hu, Yang Zhao, and Zhaodong Tang. "Study on Application of T-S Fuzzy Observer in Speed Switching Control of AUVs Driven by States." Mathematical Problems in Engineering 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/631396.

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Considering the inherent strongly nonlinear and coupling performance of autonomous underwater vehicles (AUVs), the speed switching control method for AUV driven by states is presented. By using T-S fuzzy observer to estimate the states of AUV, the speed control strategies in lever plane, vertical plane, and speed kept are established, respectively. Then the adaptive switching law is introduced to switch the speed control strategies designed in real time. In the simulation, acoustic Doppler current profile/side scan sonar (ADCP/SSS) observation case is employed to demonstrate the effectiveness
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VITAL, HELENICE, ARNO MASCHMANN DE OLIVEIRA, and WERNER FARKATT TABOSA. "Caracterização de Padrões de Formas de Fundo da Foz do Rio São Francisco." Pesquisas em Geociências 28, no. 2 (2001): 125. http://dx.doi.org/10.22456/1807-9806.20277.

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On the basis of a regional side-scan sonar survey covering a distance of 12 km on the São Francisco River Mouth between Piaçabuçu and Cabeço-Pontal da Barra (NE Brazil) a variety of bedforms have been distinguished. The river bed morphology of this area can be characterized by three main patterns: dunes, ripples and planar beds. Sand dunes occur as extensive 2D and 3D dune fields. Between Piaçabuçu and Fitinha Island the dunes are asymmetric indicating a sand movement toward the river mouth. These dunes range in height from 1 to 2 m, and in wavelength from 30 to 90 m. Between Fitinha Island an
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Bolaños, R., and A. Souza. "Measuring hydrodynamics and sediment transport processes in the Dee estuary." Earth System Science Data Discussions 3, no. 1 (2010): 79–107. http://dx.doi.org/10.5194/essdd-3-79-2010.

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Abstract. The capability of monitoring and predicting the marine environment leads to a more sustainable development of coastal and offshore regions. Therefore, the continuous measurement of environmental processes become an important source of information. The present paper shows data collected during 6 years, and in particular during 2008, in the Dee Estuary. The data aims to improve the observations of the mobile sediments in coastal areas and its forcing hydrodynamics and turbulence. Data involves the deployment of instrumented rigs measuring sediment in suspension, currents, waves, sea le
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7

Kaeser, Adam J., Reuben Smit, and Michael Gangloff. "Mapping and Modeling the Distribution, Abundance, and Habitat Associations of the Endangered Fat Threeridge in the Apalachicola River System." Journal of Fish and Wildlife Management 10, no. 2 (2019): 653–75. http://dx.doi.org/10.3996/032019-jfwm-021.

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Abstract Large, Coastal Plain rivers of the southeastern United States contain some of the most diverse freshwater communities in North America; however, surveying the fauna of these large rivers presents numerous logistical and statistical challenges. We assessed the contemporary distribution, abundance, and habitat associations of the endangered fat threeridge mussel Amblema neislerii throughout the Apalachicola River system in northwestern Florida. To achieve this goal, we used side scan sonar to map the distribution of mesohabitats and conducted a system-wide, quantitative survey to define
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Bolaños, R., and A. Souza. "Measuring hydrodynamics and sediment transport processes in the Dee Estuary." Earth System Science Data 2, no. 1 (2010): 157–65. http://dx.doi.org/10.5194/essd-2-157-2010.

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Abstract. The capability of monitoring and prediction in the marine environment provides information that may allow sustainable development of coastal and offshore regions. Therefore, the continuous measurement of environmental processes becomes an important source of information. The present paper shows data collected during 6 years, and in particular during 2008, in the Dee Estuary. The aim of the data collection is to improve the observations of the mobile sediments in coastal areas and its forcing hydrodynamics and turbulence. Data includes information from the deployment of instrumented r
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9

Kubo, Yu'suke, Wonn Soh, Hideaki Machiyama, and Hidekazu Tokuyama. "Bedforms produced by the Kuroshio Current over the Izu Ridge: Side-scan sonar surveys around Kozu Sima, Nii-jima and Miyake Sima Islands, central Japan." Journal of the Geological Society of Japan 108, no. 2 (2002): 103–13. http://dx.doi.org/10.5575/geosoc.108.103.

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Flores, N. Y., F. P. L. Collas, K. Mehler, M. M. Schoor, C. K. Feld, and R. S. E. W. Leuven. "Assessing Habitat Suitability for Native and Alien Freshwater Mussels in the River Waal (the Netherlands), Using Hydroacoustics and Species Sensitivity Distributions." Environmental Modeling & Assessment, July 8, 2021. http://dx.doi.org/10.1007/s10666-021-09776-4.

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AbstractLongitudinal training dams (LTDs) in the river Waal are novel river training structures that protect the littoral zone from the adverse effects of navigation providing new habitats for riverine macroinvertebrates. In order to inform river management and to better understand their ecological value for native and alien mussel species, it is important to assess the habitat suitability of the protected LTD shore channels. We applied spatial hydroacoustics surveys consisting of side-scan sonar (SSS) and acoustic Doppler current profiler (ADCP) of the substrate type, water depth and flow vel
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Tesis sobre el tema "Bedforms. Side scan sonar. ADCP"

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Soares, Camila Hyslava Campos. "An?lise hidrodin?mica e morfodin?mica do complexo estuarino do Rio Piranhas-A?u/RN, Nordeste do Brasil." Universidade Federal do Rio Grande do Norte, 2012. http://repositorio.ufrn.br:8080/jspui/handle/123456789/18827.

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Made available in DSpace on 2015-03-13T17:08:34Z (GMT). No. of bitstreams: 1 CamilaHCS_DISSERT.pdf: 5199158 bytes, checksum: 3fe566edfdb484ed92ea990061bd1ccd (MD5) Previous issue date: 2012-02-28<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>The aim of this study was the seasonal characterization of the morphology, sedimentology and hydrodynamic of the A?u, Cavalos and Conchas estuaries. These estuaries are inserted in a semi-arid climate area and form the mouth of the hydrographic basin of the Piranhas-A?u river, that represent the discharge of the largest watershed in t
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