{"title":"Ultra-Short Baseline Acoustic Tracking System","authors":"M. Watson, J. Berkowitz, M. Wapner","doi":"10.1109/OCEANS.1983.1152001","DOIUrl":"https://doi.org/10.1109/OCEANS.1983.1152001","url":null,"abstract":"This paper describes an ultra-short baseline Sonar Tracking System that tracks cooperative point-source targets at ranges of up to 10,000 yards. The system operates in two basic modes: (1) Surface ship tracking a target (2) Surface ship tracking a fish which, in turn, tracks the target. The second mode of operation is used whenever the first mode cannot operate because of acoustic conditions, as in long-range tracking of near-surface targets. The ultra-short baseline sonar tracking system requires that the platform to which the sonar transducer is mounted, be stabilized (i.e., any motion of the sonar transducer must be compensated for). This is accomplished on the surface ship by the use of a gyro. The towed fish platform is stabilized via a novel strapdown inertial navigation system which uses an acoustic reference frame requiring small and relatively inexpensive transducers.","PeriodicalId":137921,"journal":{"name":"Proceedings OCEANS '83","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131833771","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":"Artificial Islands For Arctic Offshore Exploratory Drilling & Production Islands","authors":"B. Gerwick","doi":"10.1109/OCEANS.1983.1152070","DOIUrl":"https://doi.org/10.1109/OCEANS.1983.1152070","url":null,"abstract":"","PeriodicalId":137921,"journal":{"name":"Proceedings OCEANS '83","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132803162","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":"Stable Isotopes As Tracers In Ocean Sciences","authors":"P. Parker, R. Anderson, J. Winters, R. Scalan","doi":"10.1109/OCEANS.1983.1152045","DOIUrl":"https://doi.org/10.1109/OCEANS.1983.1152045","url":null,"abstract":"By making use of differences in stable carbon isotope ratios, which have resulted from chemical isotope effects, for carbon reservoirs large scale tracer experiments have been observed. These natural experiments have been used to quantify ocean pollution, sediment sources and duck food-webs.","PeriodicalId":137921,"journal":{"name":"Proceedings OCEANS '83","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133174753","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":"Georges Bank Benthic Infauna Monitoring Program -Year 1","authors":"N. Maciolek-Blake, J. Blake, F. Grassle, J. Neff","doi":"10.1109/OCEANS.1983.1152033","DOIUrl":"https://doi.org/10.1109/OCEANS.1983.1152033","url":null,"abstract":"Concerns about the potential effects of oil and gas exploration on Georges Bank off the coast of Massachusetts led to the initiation of an intensive monitoring program in July, 1981. Sponsored by the Minerals Management Service of the Department of the Interior, the program includes benthic community analysis, as well as determination of the trace metal and hydrocarbon levels in sediments and biota, collected near, upcurrent and downcurrent of the drilling rigs. The benthic program includes seasonal collection of six replicate samples at each of 46 stations. Samples are collected with a 0.04m2modified Van Veen grab and are double live sieved through500 mum and300 mum screens. Twenty-nine stations are positioned in tight radial array around I rig at 80m. A second group of 3 stations are near a rig site at 145m. The remaining stations cover a broad expanse of the Bank and nearby areas of potential deposition of drilling materials. Results from the first 4 biological collections indicate little heterogeneity within stations, with good replication between samples.A strong relationship between faunal composition and both sediment type and depth is indicated by cluster analysis. Use of the300 mum screen has resulted in the retention of all macroinfaunal components of each sample, including the newly settled and juvenile forms, as well as small-bodied species which are normally undersampled by larger screens.The capability of identifying the earliest juvenile stages of several species has enabled us to provide accurate counts of each species and to predict times of settlement. In general, no significant changes in benthic community structure which can be related to drilling activities have been detected during the first year of monitoring.","PeriodicalId":137921,"journal":{"name":"Proceedings OCEANS '83","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114747935","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":"Potential Hazards And Design Solutions In Using LiSO2Batteries In Pressure Housings","authors":"J. Mather, J. McHarg","doi":"10.1109/OCEANS.1983.1152143","DOIUrl":"https://doi.org/10.1109/OCEANS.1983.1152143","url":null,"abstract":"The obvious advantages of lithium batteries, i.e., long storage life, excellent temperature performance, and outstanding volumetric and weight efficiencies, make these batteries an excellent candidate for the power source for undersea electronic instruments. This is especially true if the lithium sulfur dioxide battery (LiSO2) chemistry, which has a history of successful long term undersea deployments and minimal passivation characteristics at low temperature, is considered. The superior qualities of the LiSO2battery have been overshadowed by a serious concern for safety. This concern is justified if the cells are abused so they may vent SO2and other toxic gases, detonate, burn; or when packaged in an undersea pressure housing, cause catastrophic housing failure. In an effort to quantify various modes of battery failure and define design guidelines for packaging LiSO2batteries, abuse testing was performed and evaluated. This included actual testing on individual cells as well as on completed battery assemblies. Abuse conditions included high rate discharge, charging, cell reversal, external heating and sea water immersion. Tests were performed in and out of pressure housings. Temperature and pressure profiles were recorded for the various tests and gas samples analyzed to determine the constitution of the battery failure products. Safety features which protect against cell failures and pressure housing packaging techniques, aimed at battery failure product containment or controlled venting, were also evaluated. These test results which are summarized in this report provide design guidelines for LiSO2battery assemblies of Duracell LO26SX cells or equivalent for use in undersea systems.","PeriodicalId":137921,"journal":{"name":"Proceedings OCEANS '83","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114781795","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":"Programmable Deep Ocean Transceiver","authors":"C. Gastouniotis, C. Moropoulos","doi":"10.1109/OCEANS.1983.1152180","DOIUrl":"https://doi.org/10.1109/OCEANS.1983.1152180","url":null,"abstract":"A universal Programmable Deep Ocean Transceiver (PDOT) is described.The objective of the development was to provide a microprocessor based system capable of data acquisition, multi-receive command and control functions, digitally controlled operational parameters, and synthesized transmit frequencies. This recoverable system is designed for use in the deep ocean, which previously could not be easily or conveniently accessed by conventional data acquisition methods. One version of the transceiver is currently in use as a Velocity Profiling System. It collects sound velocity and pressure data during free-fall descent to depths exceeding 20,000 feet, and again during ascent. By simply changing the software and modular interface electronics, virtually any type of sensor can be accommodated and any control function performed.","PeriodicalId":137921,"journal":{"name":"Proceedings OCEANS '83","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116821934","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":"The Manner in Which Organisms Concentrate Pollutants","authors":"A. Mearns, D. Young","doi":"10.1109/OCEANS.1983.1152031","DOIUrl":"https://doi.org/10.1109/OCEANS.1983.1152031","url":null,"abstract":"This paper provides an overview of the processes that control chemical contamination of marine life in the sea. A decade ago the Stratton Commission concluded that one of the least understood processes of pollution is the manner in which organisms concentrate pollutants. In a sense, the answer is, and was, simple: marine life either accumulates contaminants directly from the water by absorption through external tissues (gills, skin, etc.) or the contaminants are assimilated from the diet. Although we were not involved with Commission proceedings at the time, we presume the question concerned which process dominated in the sea itself - uptake from water or uptake from food? Further, we presume that the question was asked not for its scientific merit but because the answer could profoundly affect the Nation's directions in establishing quality criteria and developing safe waste disposal management strategies. If, for example, water dominated the transfer process then water quality criteria suitable for minimizing bioaccumulation could be relied upon as a regulatory tool for chemicals in aquatic and marine environments. However, if diet was the prevailing source and assimilation in the gut the prevailing \"manner\" of uptake then criteria would have to include a clear understanding of dietary pathways in the marine environment. Below, we attempt to demonstrate that, with our current knowledge, this question about the manner of uptake at the individual level is practically - but not entirely - irrelevant. Our report is not intended to be a literature review. Rather, we felt we would best serve the purpose of this conference by providing a short but comprehensive restatement of the question based on our knowledge of highlights from research over the past decade, in addition, the reader is advised that this paper is (1) a companion to the oral presentation, which will focus in more detail on several of the processes briefly reviewed here and (2) a companion to the accompanying paper on effects by Boesch [1].","PeriodicalId":137921,"journal":{"name":"Proceedings OCEANS '83","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121940582","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":"ARS-50 CLass Salvage Ship - Super Salvor","authors":"S. November, K. Smith, J. Edgar","doi":"10.1109/OCEANS.1983.1151986","DOIUrl":"https://doi.org/10.1109/OCEANS.1983.1151986","url":null,"abstract":"","PeriodicalId":137921,"journal":{"name":"Proceedings OCEANS '83","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121990719","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":"An Evaluation Of A Bottom-Mounted Doppler Acoustic Profiling Current Meter","authors":"N. Pettigrew, J. Irish","doi":"10.1109/OCEANS.1983.1152090","DOIUrl":"https://doi.org/10.1109/OCEANS.1983.1152090","url":null,"abstract":"A bottom-mounted Doppler Acoustic Profiling Current Meter (DAPCM) has been developed and tested in 133 m of water on the northern California continental shelf during the Coastal Ocean Dynamics Experiment (CODE). The prototype DAPCM is a self-contained, battery-powered instrument consisting of an acoustic Doppler profiler and a microprocessor-controlled data logger. The instrument measures vertical profiles of ocean currents with an acoustic range of approximately 150 m and vertical resolution which can be varied from 1 to 32 m. Results of a 90-day comparision between the DAPCM and 8 mechanical current meters (VMCM and VACM) show striking agreement between the two measurement techniques. Mean differences between corresponding acoustic and conventional current measurements were generally less than 0.5 cm/sec and rms differences were approximately 2 cm/sec. Vector correlation coefficients exceeded 0.97 except within 10 m of the sea surface.","PeriodicalId":137921,"journal":{"name":"Proceedings OCEANS '83","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128684652","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":"Marine Application Of The ARGOS System","authors":"A. Shaw, R. Rolland","doi":"10.1109/OCEANS.1983.1151999","DOIUrl":"https://doi.org/10.1109/OCEANS.1983.1151999","url":null,"abstract":"The performances of the ARGOS data collection and location satellite system were fully demonstrated during the first GARP experiment (FGGE), in particular, several hundred of drifting buoys equipped with ARGOS transmitters were deployed for meteorological and oceanographic data collection. The present marine applications of the ARGOS system include : 1. The improvement of the meteorological network using drifting and moored buoys, and ship keyboard terminals. 2. The study of ocean currents (Gulf Stream, Kuro-Shivo, Equatorial Currents, Offshore Currents). 3. Sea-Ice interaction studies associated with offshore industry. 4. Directional wave phenomena characterization for marine mechanical engineering purposes (oil rigs design, port construction...).","PeriodicalId":137921,"journal":{"name":"Proceedings OCEANS '83","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129139881","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}