EurOCEAN 2000 - Vlaams Instituut voor de Zee

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651 Differential GPS - Reference Station - Shore Station Unit (SSTU) Radio Link Radio Link Support Ship Unit (SSHU) low baud rate acoustic communication link (emergency commands) Radio Link high baud rate acoustic communication link (data) low baud rate acoustic communication link (commands/data) Doppler log Differential GPS - Mobile Station - Autonomous Surface Craft (ASC) Fig.1. Coordinated Operation of the DELFIM ASC and the INFANTE AUV for scientific missions in the Azores. Radio Link GIB System (buoy 1 of 4) Autonomous Underwater Vehicle (AUV) Scanning sonar
652 Figure 2.a The D. João de Castro Bank Figure 2.b Hydrothermal activity. Special emphasis is being placed on demonstrating all the steps that are necessary to acquire, process, manage, and disseminate data on hydrothermal activity to a wide audience of scientists, over the Internet. The reader is referred to [1]-[2] for a brief description of the technological challenges posed in the course of the project and for complete details on system design, development and testing at sea. 2. KEY TECHNOLOGICAL DEVELOPMENTS 2.1 Vehicle and Mission Control. Sonar Data Processing. Two robotic ocean vehicles are being used in the ASIMOV project (see Figure 3): the DELFIM ASC and the INFANTE AUV, designed and built by the Institute for Systems and Robotics of the IST with the collaboration of the Portuguese companies RINAVE (Naval Engineering), Corinox (Mechanical Workshop), and Decatlo (Fiber Glass work). The DELFIM craft was designed for automatic marine data acquisition and to serve as an acoustic relay between submerged craft and a support vessel. This will enable the transmission of sonar and video images through a specially developed acoustic communication channel that is optimized to transmit in the vertical. The DELFIM ASC can also be used as a stand-alone unit, capable of maneuvering autonomously and performing precise path following (see [4]) while carrying out automatic marine data (including bathymetric data) acquisition and transmission to an operating center installed on board a support vessel or on shore. This is in line with the current trend to develop systems to lower the costs and improve the efficiency of operation of oceanographic vessels at sea. The DELFIM is a small Catamaran 3.5 m long and 2.0 m wide, with a mass of 320 Kg. The propulsion system consists of two propellers driven by electrical motors. The vehicle is equipped with on-board resident systems for navigation, guidance and control, as well as for mission control. Navigation is done by integrating motion sensor data obtained from an attitude reference unit, a Doppler log, and a DGPS (Differential Global Positioning System) [9]. Transmissions between the vehicle, its support vessel, the fixed GPS station and the control center installed on-shore are achieved with a radio link with a range of 80 Km. The vehicle has a wing shaped, central structure that is lowered during operations at sea. At the bottom of this structure a hydrodynamically shaped body is installed that carries all acoustic transducers, including those used to communicate with underwater craft. See [1] for details.
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OFFICE FOR OFFICIAL PUBLICATIONS OF
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EurOCEAN 2000 The European Conferen
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TABLE OF CONTENTS (Volumes I - II)
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Integrated nitrogen model for europ
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II.1.2 Mehtods for monitoring, fore
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III.2.2 Oceanographic measurement a
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380
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382
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Jan van de Graaff Delft University
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dimensional near-field hydrodynamic
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ISVA, turbulence under spilling bre
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Most important results until now: W
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TITLE : PREDICTION OF COHESIVE SEDI
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394 PREDICTION OF COHESIVE SEDIMENT
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processes of CBS. This is particula
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liquefaction (e.g. induced by wave
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TITLE : COASTAL STUDY OF THREE-DIME
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COASTAL STUDY OF THREE-DIMENSIONAL
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morphological change. Their predict
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O’Connor B.A., and Nicholson J. (
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Professor F Seabra-Santos Universid
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The INDIA Project brings together m
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412 (CCMS-POL, USC) and bed sonar e
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Prof. D. Myrhaug (NTNU) Norwegian U
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project is focussed on relevant pra
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Modelling results for the flat bed
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engineering firms (coastal engineer
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422
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Luigi Alberotanza Inst. for the Stu
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All three sites are equipped with i
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2.3 Assessment of methods for the i
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TITLE : OPERATIONAL MODELLING FOR C
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‰ B. Model investigations on oper
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modelling strategies and sampling d
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TITLE: A USER-FRIENDLY TOOL FOR THE
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EUROWAVES OVERVIEW A quick illustra
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Figure 1 An example of the EUROWAVE
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Figure 4 Example output field for s
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444 EUROPEAN RADAR OCEAN SENSING He
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Figure1: WERA current field. Figure
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information in maps has proven to b
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Universidad Politecnica de Cataluny
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esources, such as in ship routing.
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Data Analysis The basic idea of adv
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implemented in system analyses and
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Dr. Claude Millot CNRS LOB/COM B.P.
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MEDITERRANEAN FORECASTING SYSTEM PI
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ADCP and line three mooring consist
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464 MeteoFrance ftp site Ocean forc
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TITLE: ASSESSMENT OF ANTIFOULING AG
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INTRODUCTION Antifouling paints are
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e.g. diuron was detected in Swedish
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esults suggest effects in the low n
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TITLE: SCOUR AROUND COASTAL STRUCTU
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Conference among others, and will b
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TOPIC 2.4. SEDIMENT TRANSPORT/SCOUR
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TITEL: VALIDATION OF LOW LEVEL ICE
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Ice compressive strength tests were
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subsequent inclined shear failure.
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486 Fig. 1 Fig. 2
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ir. M. Willems FC/FH - Flanders Hyd
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jetty and the armour layer. Out of
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Both the Zeebrugge and the Petten s
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alternative methods for the evaluat
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PORTUGAL Dr. César Andrade Centro
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Dr. Yolanda Foote Centre for Enviro
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cliff erosion and the life span of
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BIOLOGICAL PROCESSES ESPED recognis
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504
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506
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508
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510 AUTOMATIC IDENTIFICATION AND CH
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complexity of the data. Once traine
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INTEGRATING IDENTIFICATION AND CHAR
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TITLE: SEDIMENT IDENTIFICATION FOR
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518 SEDIMENT IDENTIFICATION FOR GEO
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The way to sense the marine environ
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6. Data processing and inversion (L
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TITLE: TRANSMISSION OF ELECTROMAGNE
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526 Attenuation dB/m 10 4 10 3 10 2
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Figure 2 Spectral response for wave
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TITLE: IMPROVED MICROSTRUCTURE MEAS
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IMPROVED MICROSTRUCTURE MEASUREMENT
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committee proposed the new establis
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of the profiler. Thus, the ACC98 se
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Figure 3b: Measurements of and diss
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TITLE: APPLICATIONS OF 3-DIMENSIONA
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2. OBJECTIVES The first objective o
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to demonstrate a capability for col
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546 ADIAC: DIATOMS GO DIGITAL M. Ba
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SLIDE SCANNING FOR DIATOM LOCALIZAT
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performance of normal PCs and the a
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TITLE : SUBSEA TOOLS APPLICATION RE
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554 SUBSEA TOOLS: A CRAFT PROJECT T
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RESULTS The deliverable is a multi-
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TITLE: DINOFLAGELLATE CATEGORISATIO
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1998) has simplified the developmen
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Fig. 3: Example specimen images 562
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REFERENCES Culverhouse PF, Ellis RE
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566
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INTRODUCTION 568 LOTUS Long Range T
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DESIGN OF EXPERIMENTAL EQUIPMENT Th
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Figure 2: Complex base-band impulse
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ACKNOWLEDGEMENTS This work is funde
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576 THE SEISCAN INITIATIVE: SEISMIC
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een fed through to the scanning cen
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Data scanned At the time of writing
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The digital transcription forms an
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584 SUMMARY OF SWAN PROJECT OBJECTI
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Apart from suffering from ISI, a mu
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TITLE : LONG-RANGE SHALLOW-WATER RO
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OBJECTIVES Present communication sy
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RESULTS OF THE DATA ANALYSIS Analys
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TITLE : UNDERWATER DIVING INTERPERS
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Orientation The electrical field ap
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[6] Virr LE (1987) « Role of elect
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Page 236 and 237: specimen of bottlenose dolphin capt
Page 238 and 239: REFERENCES Cameron, G. 1999. Report
Page 240 and 241: 606
Page 242 and 243: 608 HIGH RESOLUTION IN SITU HOLOGRA
Page 244 and 245: due to thermal expansion. The power
Page 246 and 247: 612 200 mm stages with optics and C
Page 248 and 249: III.1.4 Submarine geotechnics 615
Page 250 and 251: TITLE : GROUTED OFFSHORE PILES FOR
Page 252 and 253: Solution One solution to this probl
Page 254 and 255: technology. Harbour works, wharves,
Page 256 and 257: • A major characterisation progra
Page 258 and 259: VERY HIGH RESOLUTION MARINE 3D SEIS
Page 260 and 261: Monaco harbour (France) A very comp
Page 262 and 263: End-users highlighted the current,
Page 264 and 265: C. Smith Institute of Marine Biolog
Page 266 and 267: package for Automatic Mobile Invest
Page 268 and 269: The operation of ARAMIS The typical
Page 270 and 271: • ROV landing on the sea bottom t
Page 272 and 273: EURODOCKER - A UNIVERSAL DOCKING -
Page 274 and 275: RESULTS: EURODOCKER SYSTEM DESCRIPT
Page 276 and 277: THE PROTOTYPE The Construction of t
Page 278 and 279: TITLE : LIGHTWEIGHT COMPOSITE PRESS
Page 280 and 281: OBJECTIVES: The aim of the project
Page 282 and 283: TITLE : ADVANCED SYSTEM INTEGRATION
Page 286 and 287: Figure 3.a The DELFIM ASC Figure 3.
Page 288 and 289: place vertically in the framework o
Page 290 and 291: [8] A. Pascoal, . P. Oliveira, C. S
Page 292 and 293: Eng. J.-M.Coudeville ORCA Instrumen
Page 294 and 295: THE GEOSTAR PROTOTYPE GEOSTAR proto
Page 296 and 297: CONCLUSIONS GEOSTAR 2 is a project
Page 298 and 299: goals of the project and results of
Page 300 and 301: III.2.2. Oceanographic measurement
Page 302 and 303: TITLE : GAS HYDRATE AUTOCLAVE CORIN
Page 304 and 305: initially most important parameters
Page 306 and 307: 3.4 Finalization of delayed tasks i
Page 308 and 309: Dr. Margaret Yelland Southampton Oc
Page 310 and 311: RESULTS FROM THE FIRST PROJECT PERI
Page 312 and 313: Taylor,P. K. and M. J. Yelland, 199
Page 314 and 315: TRACE METAL MONOTORING IN SURFACE M
Page 316 and 317: THE FLUORESCENCE SIGNAL OBTAINED WH
Page 318 and 319: The reaction of 6-mercaptopurine, l
Page 320 and 321: TITLE : OCEAN TOMOGRAPHY OPERATIONA
Page 322 and 323: The OCTOPUS project has been runnin
Page 324 and 325: Fig. 2: Typical TOMOLAB input: Tomo
Page 326 and 327: The establishment of a data bank fo
Page 328 and 329: TITLE: SPECTROSCOPY USING OPTICAL F
Page 330 and 331: The overall objective of the SOFIE
Page 332 and 333: devoted to investigate the behaviou
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TITLE : DEVELOPMENT AND TEST OF AN
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in-situ (Nitrate, Nitrite, Ammonia,
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Apart from the measurements made in
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MANUFACTURE OF CALIBRATION SOLUTION
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einz-Detlef Kronfeldt, Heinar Schmi
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