P. Valdy, V. Ciausu, P. Leon, P. Moriconi, V. Rigaud, Y. Hello, P. Charvis, A. Deschamps, C. Sillans
{"title":"Deep Sea Net: an affordable, and expandable solution for deep sea sensor networks","authors":"P. Valdy, V. Ciausu, P. Leon, P. Moriconi, V. Rigaud, Y. Hello, P. Charvis, A. Deschamps, C. Sillans","doi":"10.1109/UT.2007.370952","DOIUrl":"https://doi.org/10.1109/UT.2007.370952","url":null,"abstract":"Deep Sea Net is a new concept of deep sea sensor network built from fiber optic micro cable and battery operated IP access nodes. Deep Sea Net fiber optic transport segments are deployed directly from a standard ROV, avoiding the use of a costly cable layer ship. Deployment skid is abandoned on user site ready to connect local sensors and next transport segment. Deep Sea Net is a low consumption network which can be waked on user (or sensor) demand. Lithium batteries and fine power management will give 10 years of autonomy with 1/4 of hour operation per day. The innovative approach of Deep Sea Net will permit to build, extend and maintain future sensor networks at very competitive prices.","PeriodicalId":345403,"journal":{"name":"2007 Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126437843","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}
{"title":"Development of Deep Sea ROV \"KAIKO7000II\"","authors":"H. Nakajoh, M. Takashi, Y. Noriyasu, S. Hideki","doi":"10.1109/UT.2007.370831","DOIUrl":"https://doi.org/10.1109/UT.2007.370831","url":null,"abstract":"On May 29, 2003, the KAIKO's secondary cable snapped, and the KAIKO's vehicle has been missing. JAMSTEC (Japan Agency for Marine-Earth Science and Technology) was decided to remodel the vehicle of UROV7K system instead of the lost vehicle in order to continue the scientific activities. This system is called \"KAIKO7000\" system. Remodeling of the KAIKO7000 system was finished in March 2004, and KAIKO7000 system was succeeded in the sea trials in 2005. Then, actual science activities that was interrupted by the KAIKO's vehicle lost was resumed in May 2005. During the overhaul of KAIKO7000 system at the end of 2005, the vehicle was remodelled in order to improve its performances such as body size and payload capacity increase with additional buoyancy materials, new powerful manipulator and a compact sized HDTV camera install, and so on. After completed the remolding, KAIKO7000 system is renamed \"KAIKO7000II\". At sea trials, KAIKO7000II was succeeded in the maximum operation depth test, which was reached at a depth of 7,334 m in May 2006. Also new developed compact sized HDTV camera was tested at the sea, and it can get distinct images of the sea bottom successfully. This paper described about remodelled KAIKO7000II and its operation.","PeriodicalId":345403,"journal":{"name":"2007 Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134226004","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}
{"title":"Seafloor roughness measurement from a ROV","authors":"N. Chotiros, M. Isakson, J. Piper, M. Zampolli","doi":"10.1109/UT.2007.370835","DOIUrl":"https://doi.org/10.1109/UT.2007.370835","url":null,"abstract":"A method of seafloor roughness measurement using low-power lasers and a camcorder mounted on a ROV was demonstrated in the EVA (Experiments for Validation of Acoustics modeling techniques) sea trials, conducted near Marciana Marina, Isola d'Elba, Italy. Six red laser beams were spread by cylindrical lenses into parallel planes. The intersection of the laser planes with the ocean bottom was imaged on a digital camcorder, pitched down at a nominal angle of 45 degrees. NTSC video recordings were collected and analyzed to extract the laser profiles. After correcting for aberrations due to refraction between air and water and other imperfections, taking into account the scanning and interlacing effects of the NTSC video, and given the relative positions of the camcorder and lasers, the 3-D coordinates of the laser profiles relative to the camcorder were computed. Images of the seafloor were used in an image registration algorithm to track the trajectory of the camcorder, and stack the laser profiles to reconstruct the seafloor surface. The measurements were made in conjunction with acoustic reflection measurements to determine the effects of incoherent scattering on the mean value of the reflection coefficient over a wide range of angles.","PeriodicalId":345403,"journal":{"name":"2007 Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies","volume":"152 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131201296","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}
{"title":"Dive of AUV \"r2D4\" to \"The Great Dodo Lava Plain\" in the Rift Valley of the Central Indian Mid-Ocean Ridge System","authors":"T. Ura","doi":"10.1109/UT.2007.370783","DOIUrl":"https://doi.org/10.1109/UT.2007.370783","url":null,"abstract":"This article presents recent studies made utilising the autonomous underwater vehicle (AUV) r2D4 of the Great Dodo Lava Plain at the Central Indian Mid-Ocean ridge system. r2D4 is a cruising type AUV weighing 1,600 kgf with a length of 4.4 m. It is fitted with a side scanning sonar, an interferometry sonar, a CTDO, and an in-situ chemical analyzer \"GAMOS\" for measurement of manganese concentration. This study benefits from the AUV's high performance in autonomy and reliability in hostile environments.","PeriodicalId":345403,"journal":{"name":"2007 Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132117152","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}
I. Noda, T. Kondou, T. Takagi, Y. Koyano, M. Ando, H. Shibaki, N. Hara
{"title":"Application of integrated Numerical Research System for Prevention and Estimation of Coastal Disaster for the case of Shikoku Island, Japan","authors":"I. Noda, T. Kondou, T. Takagi, Y. Koyano, M. Ando, H. Shibaki, N. Hara","doi":"10.1109/UT.2007.370840","DOIUrl":"https://doi.org/10.1109/UT.2007.370840","url":null,"abstract":"The INSPECT (Integrated Numerical research System for Prevention and Estimation of Coastal disasTer) system was developed for numerical analysis of oceanographical disaster phenomena in coastal and estuarine areas. The INSPECT consists of three numerical simulation models (Wave, Storm Surge and Tsunami models), their supporting sub-systems and supporting databases. With this system, various coastal protection works can be more reliable designed. The paper presents an outline of the design, basic theory of numerical research and applications of the system.","PeriodicalId":345403,"journal":{"name":"2007 Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130589219","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}
P. Lee, B. Jun, K. Kim, H. Choi, J. Li, C. Lee, S. Ryu, H. Baek, S. Hong, Y. Lim, D. Kim, S. Cho, D. Park, B. Gu, J. Lee, H. Jung, S. Yoon, C. Park, M. Choi, Y. Seo
{"title":"Sea-trial and Experimental Results of the Deep-sea Unmanned Underwater Vehicles, HEMIRE and HENUVY","authors":"P. Lee, B. Jun, K. Kim, H. Choi, J. Li, C. Lee, S. Ryu, H. Baek, S. Hong, Y. Lim, D. Kim, S. Cho, D. Park, B. Gu, J. Lee, H. Jung, S. Yoon, C. Park, M. Choi, Y. Seo","doi":"10.1109/UT.2007.370794","DOIUrl":"https://doi.org/10.1109/UT.2007.370794","url":null,"abstract":"This paper presents the sea-trial of the deep-sea unmanned underwater vehicles (UUV), composed of two vehicles, a remotely operated vehicle (ROV) 'Hemire' and a depressor 'Henuvy.' The sea trials were conducted at the East Sea and the Philippine Sea, where the depth is 2,026 m and 5,775 m, respectively. This paper discusses the experimental results of the sea trials focused on position tracking, operation, and motion control of the vehicles. Further works are suggested to enhance operational flexibility and reliability of the vehicles.","PeriodicalId":345403,"journal":{"name":"2007 Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121871074","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}
{"title":"A Design Concept of Seafloor Observatory Network for Earthquakes and Tsunamis","authors":"K. Kawaguchi, E. Araki, Y. Kaneda","doi":"10.1109/UT.2007.370953","DOIUrl":"https://doi.org/10.1109/UT.2007.370953","url":null,"abstract":"The reinforcement of monitoring capability on seafloor is important to understand and forecast the mega-thrust earthquake activity near plate boundary accurately. The deployment of high density real-time seafloor observatory network is suggested to realize this requirement. The maintenance of large scale system extend over a long period of time is one of a great challenge of underwater technology. The conventional high reliability system design of real-time seafloor observatory is not suit for keeping up a large scale system long time. A noble system design concept and practical system management is necessary to make the seafloor observatory network turn into a reality. This paper describes a design concept of the seafloor observatory network that scheduled to install to the Nankai trough in the next several years.","PeriodicalId":345403,"journal":{"name":"2007 Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125598064","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}
H. Mikada, J. Kasahara, T. Watanabe, K. Asakawa, H. Matsumoto, K. Mitsuzawa
{"title":"Monitoring earthquakes using submarine cables Transitions from Passive to Active Monitoring","authors":"H. Mikada, J. Kasahara, T. Watanabe, K. Asakawa, H. Matsumoto, K. Mitsuzawa","doi":"10.1109/UT.2007.370763","DOIUrl":"https://doi.org/10.1109/UT.2007.370763","url":null,"abstract":"Eight cabled observatories are all installed to aid earthquake studies for disaster mitigation at the future potential hazards that could take place at plate boundaries surrounding the Japanese islands. Scientific results started appearing in the literature using passive, real-time and continuous time series of data acquired on the seafloor for seismic and tsunami signals. The knowledge about earthquake source mechanisms has been deepened in terms of seismic asperity with respect to hydrogeological findings at seismogenic zones. We are now expecting possible extension of observations to use active sources to monitor changes in physical properties of plate boundary interface. In this paper, we try to summarize the latest scientific achievements in this seismogenic studies from cabled observatotions and, then, to discuss advantages of detecting such changes in physical properties at depth in time and space. The development of offshore monitoring system and active monitoring/mapping must be well considered for profound understanding of earthquake generation processes..","PeriodicalId":345403,"journal":{"name":"2007 Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126296106","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}
M. Issac, S. Adams, Moqin He, N. Bose, C. Williams, R. Bachmayer, T. Crees
{"title":"Manoeuvring Experiments Using the MUN Explorer AUV","authors":"M. Issac, S. Adams, Moqin He, N. Bose, C. Williams, R. Bachmayer, T. Crees","doi":"10.1109/UT.2007.370791","DOIUrl":"https://doi.org/10.1109/UT.2007.370791","url":null,"abstract":"Autonomous Underwater Vehicles (AUVs) are self-propelled robotic platforms that can perform a predetermined mission completely unmanned. A series of manoeuvring experiments were performed using the MUN Explorer AUV during the summer of 2006 and a selection of these experimental results are presented in this paper. The purpose of these experiments was to collect a set of useful data for validating a hydrodynamic model of the dynamic performance of the vehicle. This paper aims at explaining the methods and measures adopted in accomplishing this task. Apart from providing a data set for validation of the hydrodynamic model, the data record also shows the ability of the AUV to perform extreme manoeuvres and the accuracy with which it can follow a pre-planned mission.","PeriodicalId":345403,"journal":{"name":"2007 Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121395621","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}
N. Miyazaki, K. Sato, Y. Watanabe, K. Aoki, T. Narasaki, T. Kudo, Y. Naito
{"title":"New approach to diving behaviour of aquatic animals using bio-logging system","authors":"N. Miyazaki, K. Sato, Y. Watanabe, K. Aoki, T. Narasaki, T. Kudo, Y. Naito","doi":"10.1109/UT.2007.370751","DOIUrl":"https://doi.org/10.1109/UT.2007.370751","url":null,"abstract":"Bio-logging system has been an important tool in the study of the diving behaviour and ecological study of aquatic animals, and the physical and chemical environment in the ocean. New digital technology has contributed to the development of more effective devices with smaller size, higher efficiency, larger capacity, and lower energy consumption. Bio-logging system using these devices can provide information about the behaviour of aquatic animals and their environmental condition which is becoming essential to effective conservation of the marine ecosystem and the marine biodiversity. This technology is also providing information useful for the long-term weather forecasting and global climate change of marine environment. The Ocean Research Institute of the University of Tokyo is establishing the well-organized research program \"Bio-logging Science\" with cooperation of domestic and international institutes. This program is also technically supported by Japanese companies such as the Little Leonard Cooperation. This program is composed of the following main ten items; (1) study of diving behaviour of aquatic animals (whales, seals, sea turtles, fishes, sea birds, etc.), (2) study of social behaviour of aquatic animals, (3) physiological study of aquatic animals, (4) study of bio-mechanics, (5) environmental study in marine ecosystem, (6) device development and system development, (7) making data-base of biological and oceanographic information, (8) establishing network of \"Bio-logging Science\", (9) providing public information on diving behaviour of aquatic animals and their environmental condition, and (10) promotion for scientific activities of young scientists.","PeriodicalId":345403,"journal":{"name":"2007 Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130928562","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}