2014 Oceans - St. John's最新文献_第2页

TURTLE — Systems and technologies for deep ocean long term presence 海龟——深海长期存在的系统和技术

2014 Oceans - St. John's Pub Date : 2014-09-01 DOI: 10.1109/OCEANS.2014.7003138

H. Ferreira, A. Martins, J. Almeida, A. Valente, António Figueiredo, Batista da Cruz, M. Camilo, V. Lobo, C. Pinho, Augustin Olivier, E. Silva

引用次数: 7

Accurate sea floor mapping: From multichannel seismic hydrophone 精确的海底测绘:来自多通道地震水听器

2014 Oceans - St. John's Pub Date : 2014-09-01 DOI: 10.1109/OCEANS.2014.7003034

B. Xu, J. Ji

{"title":"Accurate sea floor mapping: From multichannel seismic hydrophone","authors":"B. Xu, J. Ji","doi":"10.1109/OCEANS.2014.7003034","DOIUrl":"https://doi.org/10.1109/OCEANS.2014.7003034","url":null,"abstract":"Accurate sea floor maps are needed for many applications, such as geological studies, coastal safety, navigation, and climate changes, but have only been produced recently by utilizing digital multibeam technology, remotely operated vehicles, or diving in a submersible device. However, because of the cost of these operations, those maps are rare for areas that are not shallow and near the shore. The goal of this research is to investigate the feasibility of using marine seismic survey data for accurate sea floor mapping. Seismic survey data has been widely collected around the world by oil and gas companies for oil and gas exploration. The data used in this research is the multichannel marine seismic survey EW0008 in the western Atlantic Ocean obtained from the Earth Institute Marine Geoscience Data System at Columbia University. The Seismic Unix processing package from the Center of Wave Phenomena at Colorado School of Mines is used to process the EW0008 survey. By using the common midpoint gather to analyze the velocity of sound traveling between the ocean surface and floor, based on the hyperbolic move out assumption, we can precisely determine the velocity of sound to an accuracy of 1m/sec at 37.5m increment along the sail line, and determine the sea floor reflection time at 1ms time resolution. Therefore, the accuracy of sea floor mapping is approximately 0.1 percent of the water depth in this survey area.The research results show that the multichannel marine seismic survey data can be used for accurate sea floor mapping, achieving large scale sea floor coverage with an accuracy of approximately 0.1 percent. This project illustrated a creative use of the marine seismic survey data beyond its intended purposes and improved sea floor mapping accuracy and coverage significantly. It is a start of greater efforts to map Earth's sea floor.","PeriodicalId":368693,"journal":{"name":"2014 Oceans - St. John's","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123574885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Searching for the proper deep-water structure for oil and gas developments in the Caspian Sea 寻找适合里海油气开发的深水构造

2014 Oceans - St. John's Pub Date : 2014-09-01 DOI: 10.1109/OCEANS.2014.7003209

Negin Khabiri, F. Azarsina, M. Azad

引用次数: 0

A decentralized planning algorithm considering tack spatial configuration for a group of AUVs 一种考虑航向空间配置的auv群分散规划算法

2014 Oceans - St. John's Pub Date : 2014-09-01 DOI: 10.1109/OCEANS.2014.7003073

I. Tuphanov, Andrey M. Sakharov

引用次数: 1

Development of a prototype underwater acoustic and motion recorder for the Ganges river dolphin 为恒河海豚研制水声和运动记录仪

2014 Oceans - St. John's Pub Date : 2014-09-01 DOI: 10.1109/OCEANS.2014.7003248

J. Kojima, H. Sugimatsu, T. Ura, R. Bahl, S. Behera, K. Nagahashi

引用次数: 2

Modelling and identification of a robust autonomous surface craft for deployment in Harsh ocean environment 面向恶劣海洋环境的鲁棒自主水面艇建模与识别

2014 Oceans - St. John's Pub Date : 2014-09-01 DOI: 10.1109/OCEANS.2014.7003150

Zhi Li, R. Bachmayer

引用次数: 4

The Seaformatics technology demonstration project Seaformatics技术示范项目

2014 Oceans - St. John's Pub Date : 2014-09-01 DOI: 10.1109/OCEANS.2014.7002987

Andrew Cook, V. Mašek, G. Holden, Adam Press, R. Boyd

{"title":"The Seaformatics technology demonstration project","authors":"Andrew Cook, V. Mašek, G. Holden, Adam Press, R. Boyd","doi":"10.1109/OCEANS.2014.7002987","DOIUrl":"https://doi.org/10.1109/OCEANS.2014.7002987","url":null,"abstract":"Memorial University of Newfoundland has completed a project entitled the Ocean Network Seafloor Instrumentation (later renamed Seaformatics Project), which began in 2007 and was funded by the Atlantic Canada Opportunities Agency (ACOA) - Atlantic Innovation Fund (AIF) and a number of other organizations. The concept behind Seaformatics was to develop technologies to enable the long-term deployment of an array of seafloor-mounted ocean sensors. The prototype node - called a Seaformatics Pod - has been successfully tested in Memorial University's Marine Institute flume tank and was field tested in Conception Bay in 2012. The project team proposed to perform a long term trial in Placentia Bay in partnership with Husky Energy. The project will provide much-needed data on the reliability of the Seaformatics Pod platform and prove that the Seaformatics Pod is capable of delivering ocean sensor data for other applications of interest to industry users. For Memorial University, success will result in a Seaformatics Pod prototype that is market-ready, which will in turn better enable the University to commercialize the technology for the global marketplace. This paper describes the 2nd generation pod prototype in detail, gives an overview of the demonstration projects goals and presents the preliminary results of the field program.","PeriodicalId":368693,"journal":{"name":"2014 Oceans - St. John's","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123031797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deployable oil dispersant system for fixed wing aircraft 固定翼飞机可展开油分散剂系统

2014 Oceans - St. John's Pub Date : 2014-09-01 DOI: 10.1109/OCEANS.2014.7003122

Nathan Brazil, S. Nakhla, S. Kenny

引用次数: 2

New ocean bottom cabled seismic and tsunami observation system enhanced by ICT 新海底电缆地震和海啸观测系统的信息通信技术增强

2014 Oceans - St. John's Pub Date : 2014-09-01 DOI: 10.1109/OCEANS.2014.7003045

M. Shinohara, Tomoaki Yamada, S. Sakai, H. Shiobara, T. Kanazawa

{"title":"New ocean bottom cabled seismic and tsunami observation system enhanced by ICT","authors":"M. Shinohara, Tomoaki Yamada, S. Sakai, H. Shiobara, T. Kanazawa","doi":"10.1109/OCEANS.2014.7003045","DOIUrl":"https://doi.org/10.1109/OCEANS.2014.7003045","url":null,"abstract":"A new Ocean Bottom Cabled Seismic and Tsunami observation system (OBCST) has been developed for replacement of the existing cabled observation system off Sanriku, Japan, whose landing station was damaged by tsunamis of the 2011 Tohoku earthquake. Until 2010, we had already developed and installed the new compact Ocean Bottom Cabled Seismometer (OBCS) system near Awashima-island in the Japan Sea. After the installation, the OBCS system is being operated continuously and we have continuous seismic data for more than 3 years. The new OBCST system for off-Sanriku area is based on the Awashima system, and is characterized by system reliability using TCP/IP technology and down-sizing of an observation node using up-to-date electronics. The new OBCST system has new functions compared to the first system. An Ethernet of the system is upgraded to Giga-bit and clocks in observation nodes can be synchronized through TCP/IP protocol with an accuracy of 300 ns (IEEE 1588). In addition, power over Ethernet technology enables us to equip an external port for additional sensors. After installation of the cabled system, a scientific sensor can be added/replaced by using remotely operated vehicle. We have a plan to install the new OBCST system in 2015. The system has two observation nodes with three-component accelerometers and pressure gauge for tsunami observation and one node with accelerometers and an external port for additional sensors on seafloor. Total length of the practical system is approximately 100 km and an interval of the observation node is about 30 km. At the present, we are producing the observation nodes of the new OBCST. In this paper, we present a system of the new OBCST in detail, and installation plan.","PeriodicalId":368693,"journal":{"name":"2014 Oceans - St. John's","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129700895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Backstepping adaptive docking control for a full-actuated autonomous underwater vehicle with onboard USBL system 基于USBL系统的全驱动自主水下航行器后退自适应对接控制

2014 Oceans - St. John's Pub Date : 2014-09-01 DOI: 10.1109/OCEANS.2014.7002984

Jian Gao, Changxin Liu, Yingxiang Wang

引用次数: 6