Relevant bibliographies by topics / Bathymetric surveying

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Bathymetric surveying'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Bathymetric surveying"

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Tang, Kelvin Kang Wee, and Mohd Razali Mahmud. "The Accuracy of Satellite Derived Bathymetry in Coastal and Shallow Water Zone." International Journal of Built Environment and Sustainability 8, no. 3 (August 30, 2021): 1–8. http://dx.doi.org/10.11113/ijbes.v8.n3.681.

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Precise and accurate bathymetric measurements are conventionally acquired by means of ship-based acoustic equipment. Nevertheless, recent multispectral satellite imagery has been utilised as a substitute source to map the seabed topography which indicates new revolution in hydrographic surveying. This study assesses the satellite bathymetric depth’s accuracy based on the vertical uncertainty as stated in the Standards for Hydrographic Surveys issued by the International Hydrographic Organization. Two empirical algorithms, namely, Dierssen’s and Stumpf’s approaches have been adopted to model the seafloor topography over the coastal and shallow water at Tanjung Kupang, Malaysia. The outcomes demonstrate a decent correlation between the derived water depths and the sounding values acquired from a ship-based acoustic survey. For instance, a total of 1,215 out of the 1,367 generated water depths by Stumpf’s model have hit the minimum standard of survey in S-44. Similarly, out of the 1,367 samples from Diessen’s model, 1,211 samples have met the minimum requirement listed in the survey standard. The results demonstrate both imageries derived bathymetry models convey promising results which can be ultilised for bathymetric mapping application. Therefore, this imagery derived bathymetry can be considered as an alternative bathymetric surveying technique to supply cost-effective solution and survey data to support the Blue Economy and Sustainable Development Goals 14.
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Tang, K. K. W., M. R. Mahmud, A. Hussaini, and A. G. Abubakar. "EVALUATING IMAGERY-DERIVED BATHYMETRY OF SEABED TOPOGRAPHY TO SUPPORT MARINE CADASTRE." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-4/W16 (October 1, 2019): 633–39. http://dx.doi.org/10.5194/isprs-archives-xlii-4-w16-633-2019.

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Abstract. The Department of Survey and Mapping Malaysia has introduced marine cadastre system to register the rights, other valid interests therein and ownership of spatially determined parcels in the context of the marine environment yet the implementation of the system is still at the rudimentary stage. One of the big issues here is gathering land-to-seabed data to create a seamless topographic base map to support its marine cadastre project. Seabed bathymetric mapping in coastal zone is one of the major components to support marine cadastre. In the past, accurate bathymetric measurements can be a very laborious task in hydrographic surveying. Traditional vessel-based acoustic soundings require a lot of time, operation cost and others. Today, human’s ingenuity to yield bathymetric depths from multispectral images as an alternative source to chart the seabed topography has brought in new revolution to hydrography. The paper is initiated for evaluating water depth determination by using imagery-derived bathymetry technique and check its correlation with in-situ bathymetry depths. In the course of experiment, it demonstrates a good correlation between the imagery-derived bathymetric depths and the in-situ bathymetric depths, and majority of the derived depths have passed the minimum requirement of the IHO S-44 survey standard. The result also shows that these empirical models deliver promising outcome which can be use over the turbid environment setting. Hence, imagery-derived bathymetry approach can be an efficient and repeatable way to derive the seabed topography over a huge segment of coastal region. This study also suggests that imagery-derived bathymetry approach can be recognised as an aid in seabed topographic mapping to support marine cadastre initiative.
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Said, N. M., M. R. Mahmud, and R. C. Hasan. "SATELLITE-DERIVED BATHYMETRY: ACCURACY ASSESSMENT ON DEPTHS DERIVATION ALGORITHM FOR SHALLOW WATER AREA." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-4/W5 (October 5, 2017): 159–64. http://dx.doi.org/10.5194/isprs-archives-xlii-4-w5-159-2017.

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Over the years, the acquisition technique of bathymetric data has evolved from a shipborne platform to airborne and presently, utilising space-borne acquisition. The extensive development of remote sensing technology has brought in the new revolution to the hydrographic surveying. Satellite-Derived Bathymetry (SDB), a space-borne acquisition technique which derives bathymetric data from high-resolution multispectral satellite imagery for various purposes recently considered as a new promising technology in the hydrographic surveying industry. Inspiring by this latest developments, a comprehensive study was initiated by National Hydrographic Centre (NHC) and Universiti Teknologi Malaysia (UTM) to analyse SDB as a means for shallow water area acquisition. By adopting additional adjustment in calibration stage, a marginal improvement discovered on the outcomes from both Stumpf and Lyzenga algorithms where the RMSE values for the derived (predicted) depths were 1.432 meters and 1.728 meters respectively. This paper would deliberate in detail the findings from the study especially on the accuracy level and practicality of SDB over the tropical environmental setting in Malaysia.
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Duplančić Leder, Tea, Nenad Leder, and Josip Peroš. "Satellite Derived Bathymetry Survey Method - Example of Hramina Bay." Transactions on Maritime Science 8, no. 1 (April 20, 2019): 99–108. http://dx.doi.org/10.7225/toms.v08.n01.010.

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Satellite Derived Bathymetry (SDB) method uses satellite or other remote multispectral imagery for depth determination in very shallow coastal areas with clear waters. Commonly, SDB survey method can be used when planning hydrographic surveying of marine areas not surveyed or areas with old bathymetric data. This method has become widely used in the past few years. SDB is a survey method founded on analytical modelling of light penetration through the water column in visible and infrared bands. In this article, SDB method was applied by using free-of-charge Landsat 8 and Sentinel 2 satellite images to get the bathymetric data in the area of Hramina Bay in the Central Adriatic. SDB processing procedures and algorithms were described. Processed satellite data was uploaded on geodetic software and ENC S-57 format. The bathymetric map of Hramina Bay obtained by the SDB method was compared with the approach usage band Electronic Nautical Chart (ENC) HR400512 with satisfying positional and vertical accuracy.
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Halmai, Ákos, Alexandra Gradwohl–Valkay, Szabolcs Czigány, Johanna Ficsor, Zoltán Árpád Liptay, Kinga Kiss, Dénes Lóczy, and Ervin Pirkhoffer. "Applicability of a Recreational-Grade Interferometric Sonar for the Bathymetric Survey and Monitoring of the Drava River." ISPRS International Journal of Geo-Information 9, no. 3 (March 5, 2020): 149. http://dx.doi.org/10.3390/ijgi9030149.

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Sonar survey of shallow water bodies has challenged scientists for a long time. Although these water courses are small, still they have an increasing ecological, touristic and economical role. As maritime sonars are non-ideal tools for shallow waters, the bathymetric survey of these rivers has been taken with cross-sectional methods. Due to recent developments, interferometric surveying technology have also burst into the market of recreational-grade fish-finders. The objective of the current study was the development of a novel, complex and integrated surveying technique which is affordable, robust and applicable even at low water levels. A recreational-grade sonar system was assembled and mounted on a double-hull vessel and connected with a geodetic Global Navigation Satellite System (GNSS) device. We have developed a novel software which enables the bridging between a closed sonar file format and the commonly used Geographic Information System (GIS) datasets. As a result, the several month-long conventional bathymetric survey of the 146 km-long reach of the Drava River was reduced to 20 days and provided channel bathymetry of many orders of magnitude higher than the classical methods. Additionally, a large number of spatial derivatives were generated which enables the analysis of channel morphology, textural variation of channel sediments and the accurate delineation of navigational routes.
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Arndt, Jan Erik, Robert D. Larter, Peter Friedl, Karsten Gohl, and Kathrin Höppner. "Bathymetric controls on calving processes at Pine Island Glacier." Cryosphere 12, no. 6 (June 15, 2018): 2039–50. http://dx.doi.org/10.5194/tc-12-2039-2018.

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Abstract. Pine Island Glacier is the largest current Antarctic contributor to sea-level rise. Its ice loss has substantially increased over the last 25 years through thinning, acceleration and grounding line retreat. However, the calving line positions of the stabilising ice shelf did not show any trend within the observational record (last 70 years) until calving in 2015 led to unprecedented retreat and changed the alignment of the calving front. Bathymetric surveying revealed a ridge below the former ice shelf and two shallower highs to the north. Satellite imagery shows that ice contact on the ridge was likely lost in 2006 but was followed by intermittent contact resulting in back stress fluctuations on the ice shelf. Continuing ice-shelf flow also led to occasional ice-shelf contact with the northern bathymetric highs, which initiated rift formation that led to calving. The observations show that bathymetry is an important factor in initiating calving events.
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Work, Paul A., Mark Hansen, and W. Erick Rogers. "Bathymetric Surveying with GPS and Heave, Pitch, and Roll Compensation." Journal of Surveying Engineering 124, no. 2 (May 1998): 73–90. http://dx.doi.org/10.1061/(asce)0733-9453(1998)124:2(73).

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Agrafiotis, Panagiotis, Dimitrios Skarlatos, Andreas Georgopoulos, and Konstantinos Karantzalos. "DepthLearn: Learning to Correct the Refraction on Point Clouds Derived from Aerial Imagery for Accurate Dense Shallow Water Bathymetry Based on SVMs-Fusion with LiDAR Point Clouds." Remote Sensing 11, no. 19 (September 24, 2019): 2225. http://dx.doi.org/10.3390/rs11192225.

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The determination of accurate bathymetric information is a key element for near offshore activities; hydrological studies, such as coastal engineering applications, sedimentary processes, hydrographic surveying, archaeological mapping and biological research. Through structure from motion (SfM) and multi-view-stereo (MVS) techniques, aerial imagery can provide a low-cost alternative compared to bathymetric LiDAR (Light Detection and Ranging) surveys, as it offers additional important visual information and higher spatial resolution. Nevertheless, water refraction poses significant challenges on depth determination. Till now, this problem has been addressed through customized image-based refraction correction algorithms or by modifying the collinearity equation. In this article, in order to overcome the water refraction errors in a massive and accurate way, we employ machine learning tools, which are able to learn the systematic underestimation of the estimated depths. In particular, an SVR (support vector regression) model was developed, based on known depth observations from bathymetric LiDAR surveys, which is able to accurately recover bathymetry from point clouds derived from SfM-MVS procedures. Experimental results and validation were based on datasets derived from different test-sites, and demonstrated the high potential of our approach. Moreover, we exploited the fusion of LiDAR and image-based point clouds towards addressing challenges of both modalities in problematic areas.
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Levin, E., G. Meadows, R. Shults, U. Karacelebi, and H. S. Kulunk. "BATHYMETRIC SURVEYING IN LAKE SUPERIOR: 3D MODELING AND SONAR EQUIPMENTS COMPARING." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W10 (April 17, 2019): 101–6. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w10-101-2019.

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<p><strong>Abstract.</strong> This paper represents the overview of hydrographic surveying and different types of modern and traditional surveying equipment, and data acquisition using the traditional single beam sonar system and a modern fully autonomous underwater vehicle (AUV) IVER3. During the study, the data sets were collected using the vehicles of the Great Lake Research Center at Michigan Technological University. This paper presents how to process and edit the bathymetric data on SonarWiz5. Lastly, it compares the accuracy of the two different sonar systems in the different missions and creates 3D models to display and understand the elevations changes. Moreover, the 3D models were created after importing the data sets in the same coordinate system. In this study, the data sets were recorded by two different sensors in the two study locations in the Keweenaw Waterway in Michigan, U.S. between the cities of Houghton and Hancock. The first one equipment is the Lowrance HDS-7 sonar on the surveying boat, and other one is the EdgeTech 2205 sonar on the fully AUV of IVER3. One of the purposes of this study is to explore the sonar post processing programs, which are very important to interpret sonar and bathymetric data, and obtained the same coordinate system of the study areas. During the project, three main processing programs were used. The first one is UnderSee Explorer 2.6, which has been used to process the data sets of Polar SV boat. Secondly, EdgeTech Discover 4600 bathymetric software used EdgeTech 2205 sonar data sets to create bathymetric files that were used in SonarWiz5. Lastly, SonarWiz5 sonar processing software can be used to process the data sets. After the data acquisition and the data process, six profiles from the first study area and the five profiles from the second study are created to compare the data sets and elevations difference. It is shown that single beam sonar might miss some details, such as pipeline and quick elevation changes on seabed when we compare to the side scan sonar of IVER3 because the single side scan sonar can acquire better resolutions to understand the 3D features, such as pipelines, reliefs etc.</p>
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Blakey, Andrew, Eugenia Acosta, and Ryan Gariepy. "A Field Comparison of Methods and Data Results Between a Manual And Robotic Remote Sensed Survey of a Storm Water Management Pond in Kitchener, Ontario." GEOMATICA 68, no. 4 (December 2014): 345–54. http://dx.doi.org/10.5623/cig2014-408.

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Conventional shallow water bathymetric survey methods are time consuming, expensive, susceptible to human error, and often hazardous. An innovative end-to-end solution that improves water surveying by reduc ing these risks through the use of an unmanned bathymetric data collection system has been designed and built. This system combines a collection of pre- and post-processing routines with the capabilities of a purposebuilt unmanned surface vessel to measure and build accurate bathymetric datasets that are easy to integrate into any CAD or GIS database. Data collection involves the fusion of high-accuracy data from a single beam echosounder, GPS, and iner tial measurement unit (IMU) to generate sediment surface points at centimetre-level accuracy. Through use of an unmanned vessel, these surveys are repeatable without requiring any persons to be on or in the waterbody. This paper presents the results of a focused validation study conducted to illustrate that this platform gen er ates comparable data to a manual survey while greatly reducing survey time and improving safety. Results show a volumetric difference of 2.8% between the Kingfisher USV and manual survey data. Surveying duration was shorter at 42 minutes compared to 140 minutes. This survey was also reliably completed despite challenging environmental conditions.
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Dissertations / Theses on the topic "Bathymetric surveying"

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Carr, Domenic Anthony. "A study of the target detection capabilities of an airborne lidar bathymetry system." Thesis, Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/47585.

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Airborne lidar bathymetry (ALB) is a method used to survey and map coastal and littoral zones. Along with extracting seafloor depth and reflectance in the surveyed area, a fundamental requirement of these surveys is to detect underwater targets, hazards, or obstructions. The ability to detect underwater targets depends on a target's dimensions and reflectance, the depth and turbidity of the water, system and survey configuration, data processing capabilities, and algorithmic sophistication. Understanding the effects of each of these factors on the performance of underwater target detection is essential in determining the target detection capabilities of a proposed ALB system. After detailing the development of a simulation environment to model received ALB system waveforms, this work explores the theoretical target detection capabilities of an ALB system.
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Scarfe, Bradley Edward. "Oceanographic Considerations for the Management and Protection of Surfing Breaks." The University of Waikato, 2008. http://hdl.handle.net/10289/2668.

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Although the physical characteristics of surfing breaks are well described in the literature, there is little specific research on surfing and coastal management. Such research is required because coastal engineering has had significant impacts to surfing breaks, both positive and negative. Strategic planning and environmental impact assessment methods, a central tenet of integrated coastal zone management (ICZM), are recommended by this thesis to maximise surfing amenities. The research reported here identifies key oceanographic considerations required for ICZM around surfing breaks including: surfing wave parameters; surfing break components; relationship between surfer skill, surfing manoeuvre type and wave parameters; wind effects on waves; currents; geomorphic surfing break categorisation; beach-state and morphology; and offshore wave transformations. Key coastal activities that can have impacts to surfing breaks are identified. Environmental data types to consider during coastal studies around surfing breaks are presented and geographic information systems (GIS) are used to manage and interpret such information. To monitor surfing breaks, a shallow water multibeam echo sounding system was utilised and a RTK GPS water level correction and hydrographic GIS methodology developed. Including surfing in coastal management requires coastal engineering solutions that incorporate surfing. As an example, the efficacy of the artificial surfing reef (ASR) at Mount Maunganui, New Zealand, was evaluated. GIS, multibeam echo soundings, oceanographic measurements, photography, and wave modelling were all applied to monitor sea floor morphology around the reef. Results showed that the beach-state has more cellular circulation since the reef was installed, and a groin effect on the offshore bar was caused by the structure within the monitoring period, trapping sediment updrift and eroding sediment downdrift. No identifiable shoreline salient was observed. Landward of the reef, a scour hole ~3 times the surface area of the reef has formed. The current literature on ASRs has primarily focused on reef shape and its role in creating surfing waves. However, this study suggests that impacts to the offshore bar, beach-state, scour hole and surf zone hydrodynamics should all be included in future surfing reef designs. More real world reef studies, including ongoing monitoring of existing surfing reefs are required to validate theoretical concepts in the published literature.
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Zeng, Hong-Bin, and 曾宏斌. "Accuracy Analysis of Bathymetric Surveying by the Aquatic Vehicle." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/01942687083752538969.

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碩士
國立臺灣海洋大學
河海工程學系
97
This research use aquatic motorcycle in the Bathymetric survey , The system of remote controlled vessel for bathymetric surveys is combined with remote controlled vessel , DGPS and navigation integrated system.　The use control navigation speed (3knot, 4knot, 6knot) carries on the experiment in the wharf, NTOU, to investigate the influence factors of this system’s error. The anticipated bathymetric survey standard error can conform to the International Hydrographic Organization (IHO) first-class standards. 　　Compare by way of the datum and calculate its depth error, carries on the precision analysis. Demonstrated after the analysis that the aquatic motorcycle navigation speed is 3 knot, its standard deviation is less than 0.194m; The navigation speed is 4 knot, its standard deviation is less than 0.301m, conforms to the IHO first-class standards, but works as when the navigation speed is 6 knot, the depth sounding process will produce the miscellaneous news and the system retards, therefore for the maintenance good depth sounding quality, the suggestion should the aquatic motorcycle navigation speed control below 4 knot. The aquatic motorcycle system discussed in this paper is worth to recommend to the practical work of shallow water topographic surveys.
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Books on the topic "Bathymetric surveying"

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Dorst, Leendert Louis. Estimating sea floor dynamics in the southern North Sea to improve bathymetric survey planning. Delft: Netherlands Geodetic Commission, 2009.

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Gardner, James V. Cruise report RV Ocean Alert Cruise A2-98-SC: Mapping the southern California continental margin, March 26 through April 11, 1998, San Diego to Long Beach, California. [Menlo Park, CA]: U.S. Geological Survey, 1998.

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H, Kress W., Central Nebraska Public Power and Irrigation District., and Geological Survey (U.S.), eds. Comparison of preconstruction and 2003 bathymetric and topographic surveys of Lake McConaughy, Nebraska. Reston, Va: U.S. Geological Survey, 2005.

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Cruise report, RV Inland Surveyer cruise IS-98: The bathymetry of Lake Tahoe, California--Nevada, August 2 through August 17, 1998, Lake Tahoe, California and Nevada. [Menlo Park, CA]: U.S. Geological Survey, 1998.

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Book chapters on the topic "Bathymetric surveying"

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Wu, Ziyin, Fanlin Yang, and Yong Tang. "Overview of Bathymetric Surveying Technology." In High-resolution Seafloor Survey and Applications, 1–20. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-9750-3_1.

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Rondeau, Mathieu, Nicolas Seube, and Julian Le Denuf. "Surveying in Hostile and Non Accessible Areas with the Bathymetric HydroBall $$^{\circledR }$$ ® Buoy." In Quantitative Monitoring of the Underwater Environment, 47–56. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32107-3_5.

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Draganov, Deyan, Xu Ma, Menno Buisman, Tjeerd Kiers, Karel Heller, and Alex Kirichek. "Non-Intrusive Characterization and Monitoring of Fluid Mud: Laboratory Experiments with Seismic Techniques, Distributed Acoustic Sensing (DAS), and Distributed Temperature Sensing (DTS)." In Sediment Transport - Recent Advances [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.98420.

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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 accurate in detecting and monitoring muddy consolidated or sandy bed below fluid-mud layers. Furthermore, their application is restricted by surveying-vessels availability limiting temporary storm- or dredging-related bathymetrical changes capture. In this chapter, we first review existing non-intrusive techniques, with emphasis on sound techniques. Then, we give a short review of several seismic-exploration techniques applicable to non-intrusive fluid-mud characterization and monitoring with high spatial and temporal resolution. Based on the latter, we present recent advances in non-intrusive fluid-mud monitoring using ultrasonic transmission and reflection measurements. We show laboratory results for monitoring velocity changes of longitudinal and transverse waves propagating through fluid mud while it is consolidating. We correlate the velocity changes with shear-strength changes while the fluid mud is consolidating and show a positive correlation with the yield stress. We show ultrasonic laboratory results using reflection and transmission techniques for estimating the fluid-mud longitudinal- and transverse-wave velocities. For water/mud interface detection, we also use distributed acoustic sensing (DAS) and distributed temperature sensing (DTS).
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Garg, Tanvika, and Manisha Bharti. "Congestion Control Protocols for UWSNs." In Energy-Efficient Underwater Wireless Communications and Networking, 85–100. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-3640-7.ch006.

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UWSN is a grid of many purposes of self-operating nodes with various applications related to various disciplines such as hydrographic surveys, tactical surveillance, disaster prevention, and bathymetry. The process of transmission and reception of messages by propagating sound in an underwater environment is known as acoustic communication. Transmission of acoustic waves is the only method to communicate underwater, as radio waves get attenuated severely and there is severe scattering in optical transmission. Underwater wireless sensor networks (UWSN) have important applications in the exploration of underwater. UWSNs have various applications like in exploration of the sea, collection of data, monitoring of pollution, surveillance of tactics, prevention of disaster, in applications of ministry and surveying of mines.
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Conference papers on the topic "Bathymetric surveying"

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Torroba, Ignacio, Nils Bore, and John Folkesson. "Towards Autonomous Industrial-Scale Bathymetric Surveying." In 2019 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS). IEEE, 2019. http://dx.doi.org/10.1109/iros40897.2019.8968241.

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Chardon, P., and M. Canals. "Jetski-based bathymetric surveying in Rincón, Puerto Rico." In OCEANS 2012. IEEE, 2012. http://dx.doi.org/10.1109/oceans.2012.6404950.

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Jurand, Thierry, Moshe Kam, and Robert Fischl. "On Optimal Filtering and Detection of Echoes in Laser-Based Aerial Bathymetric Surveying." In 1990 American Control Conference. IEEE, 1990. http://dx.doi.org/10.23919/acc.1990.4790966.

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Popielarczyk, Dariusz. "Determination of Survey Boat “Heave” Motion with the Use of RTS Technique." In Environmental Engineering. VGTU Technika, 2017. http://dx.doi.org/10.3846/enviro.2017.229.

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The paper presents analysis of determination of vertical movement of the surveying boat called “heave” with the use of Robotized Total Station (RTS) technique. The classical geodetic Total Station was used for sub-centimeter calculation of water level changes during hydroacoustic measurements on the fragment of Vistula river behind the dam and hydropower in Włocławek in Poland. The power station work causes up to 1.7 m movement of vertical reference water surface in aspect of local bathymetric survey. The experimental, hydrographic surveys on the river were conducted where the water level was changing significantly over time depending on the operational schedule of the power plant. Verified hydrographic data had to be brought to the common water level. To determine the final water level, data on the height of the Robotized Total Station prism positioned on the boat during sounding was considered. The RTS technique with 0.02–0.05 m vertical accuracy proved to be very useful and essential in engineering inland bathymetric measurements.
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Song, Peter, Debra Tetteh-Wayoe, Kimberly Pierce, Mike Hill, and Mark Maxwell. "Enhancing Flooding Monitoring and Response to Improve Geohazard Management." In 2020 13th International Pipeline Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ipc2020-9260.

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Abstract In March 2019, snow melt and heavy rainfall resulted in major flooding at one of Enbridge’s (Company) pipeline river crossings. Based on an earlier hydrotechnical assessment, it was identified that the estimated scour in the river channel during a flood event of this magnitude could have the potential to create a pipe span of length where vortex induced vibration (VIV) may be initiated, potentially causing pipe failure and product release. As a precautionary measure, the Company shut down and isolated the pipeline; the two mainline block valves on either side of the river were closed for several days. This un-planned pipeline shut down impacted customers and resulted in revenue loss. An extended shutdown period would have also impacted downstream refineries. In order to promptly restart of the pipeline, bathymetric surveys (measuring the depth of a water body as well as mapping the river bottom profile and the underwater features of a water body) were performed in high flow conditions to verify the pipeline burial condition. This crossing had been identified in the Company’s long range forecast with a planned remediation completion in 2020. However, the potential residual threat to the integrity of the pipeline due to high flow events existed until the remediation could be completed. Consequently, Company Pipeline Integrity group had been closely monitoring this crossing. The Company’s Pipeline Integrity (PI) Department is on the journey to become a High Reliability Organization (HRO) where there is a strong preoccupation with failure and emphasis on determining the root cause of an incident, with the goal of striving for error free performance. As such, this incident was treated with as much emphasis as a pipeline failure, and several lessons learned from this incident were identified. This paper will discuss the enhancements made to the Company’s flood monitoring program, including the incorporation of the flood forecast monitoring into the flood monitoring program, identification of high priority crossings, development of purge plan, utilization of new technology for surveying during flooding and the development of a flood response guideline.
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Ko¨nnecke, Stefan. "The New ATLAS FANSWEEP 30 COASTAL: A Tool for Efficient and Reliable Hydrographic Survey." In 25th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/omae2006-92242.

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The main field of application of a multi-beam echosounder is hydrographic surveying, in other words acquisition of bottom topography information. This kind of bathymetric data is needed by a large number of users for harbour and coastal zone management, resource exploration, hydrographic charting for safety of navigation and many other tasks. Tools for highly efficient investigation of the seafloor, including rapid sediment classification, as well as reliable object detection are of high interest to offshore construction projects. Throughout the last couple of years, ATLAS Hydrographic has been concentrating on the development of the next generation of hydrographic survey echosounders. One of the results is the ATLAS FANSWEEP 30 family of multi-beam echosounders (MBES). This family of sonars offers an innovative new approach of multi-beam echosounder technology for hydrographic surveys. The ATLAS FANSWEEP 30 COASTAL, the first member of the ATLAS FANSWEEP 30 MBES family, is breaking new ground. Innovations, such as Simultaneous Multi-Ping, wide bandwidth transducer, multiple time and multi-view scanning of the seafloor for object search, address a single purpose: to improve survey efficiency while multiplying data reliability and resolution. With the FS30C the new Simultaneous Multi-Ping (SMP) is introduced. SMP utilises the complete frequency range between 100 kHz and 200 kHz to transmit and receive eight frequency separate pings at every ping interval. Four of these eight pings are forward, the other four backward looking mapping the seafloor from two independent directions. Thus, every bit of the mapped seafloor is looked at from two different directions. The 8x Simultaneous Multi-Ping enables the hydrographer to run the survey operation at high speeds. Still, the 8x SMP can ensure more than 300% bottom ensonification. That means every patch of seafloor is measured at least 3-times at one pass. The gained data redundancy is used to enhance not only data accuracy and reliability, but in particular the capability to recognise objects on the sea floor. Beginning at signal transmission, through reception beamforming to the point of real-time data gridding capabilities, the complete data flow is controlled by a built-in data evaluation solution. The new ATLAS FANSWEEP 30 COASTAL is a well suited tool to satisfy actual and upcoming demands in highly efficient and most reliable survey operations.
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Kuzma, Marta, and Marcin Lisowski. "Selection of Appropriate Scale of Relief Model." In Environmental Engineering. VGTU Technika, 2017. http://dx.doi.org/10.3846/enviro.2017.209.

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This paper presents the application of digital terrain model in developing a relief model. The digital terrain model served as the basis for the relief model. The research has taken into account the subject of combining different data in order to develop a numerical model of the land − surveying, bathymetry, maps. Another issue addressed was the one of vertical scale or exceeding it in the developed model. Its appropriate selection allows the correct representation of the terrain geomorphology. The paper presents research in carrying out relief model of Szczesliwicki Park in Warsaw. The results show the link between the vertical scale or exceeding it and the accuracy (correctness) of relief model in large-scale descriptions. In addition, a verification of models was made with the use of a scanner that uses structural light.
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Reports on the topic "Bathymetric surveying"

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Christian, H. A., R. C. Courtney, R. G. Currie, and D. C. Mosher. Interpretation of seafloor instability in the Strait of Georgia, British Columbia, from EM 100 multibeam bathymetry surveying. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1998. http://dx.doi.org/10.4095/210112.

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