nava belgica tech en

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MANAGEMENTUNITOFTHE

NORTHSEAMATHEMATICALMODELS

MEETDIENSTOOSTENDE

BELGICA TECHNICAL DESCRIPTION

Status 21/08/2006

MUMM Meetdienst Oostende

Gulledelle 100 3e en 23e Linieregimentsplein

B1200 Brussel B-8400 OOSTENDE

Belgi Belgi

Tel. : 02/773 21 11 Tel. : 059/70 01 31Fax : 02/770 69 72 Fax : 059/70 49 35

[email protected] [email protected]://www.mumm.ac.be http://www.mumm.ac.be


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The BMM is the "Management of the Marine Ecosystem" department of the Royal Belgian Institute of Natural Sciences,

Belgian Science Policy.

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Technical characteristics of the oceanographic ship RV BELGICA

I. General characteristics................................................................................................................ 4

II. Residential accommodation ........................................................................................................ 5a. Upper deck (level 01): .......................................................................................................................... 5

b. Lower deck (level 02):..........................................................................................................................5

c. Accommodation container: ................................................................................................................. 5

III. Propulsion ................................................................................................................................ 6

a. Main drive............................................................................................................................................. 6

b. Bow and stern screw propellers .......................................................................................................... 6

c. The electrical drive............................................................................................................................... 6

d. Operation of the drive systems............................................................................................................ 6e. Performance ......................................................................................................................................... 6

f. The automatic control and alarm system........................................................................................... 6

IV. Electrical system....................................................................................................................... 7

a. General:................................................................................................................................................. 7

b. Special facilities: ................................................................................................................................... 7

V. Hydraulic unit.............................................................................................................................. 8

a. Hydraulic system I and Auxiliary system ...................................................................................... 8

b. Hydraulic system II.............................................................................................................................. 8c. Hydraulic system for the EFFER crane............................................................................................. 8

VI. Navigation equipment.............................................................................................................. 9

a. Ships heading: .....................................................................................................................................9

b. Automatic pilot:....................................................................................................................................9

c. Radar: ................................................................................................................................................... 9

d. Track plotter: ....................................................................................................................................... 9

e. Positioning systems: .............................................................................................................................9

f. Ships speed: .........................................................................................................................................9

g. Water depth (only for navigation purposes, see also XIII): ............................................................. 9

h. Automatic Identification System (AIS) .............................................................................................. 9

VII. Telecommunications .............................................................................................................. 10

a. The radio station. ...............................................................................................................................10

b. The pilothouse. ...................................................................................................................................10

VIII. Deck infrastructure and winches .......................................................................................... 11


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a. Swivelling telescopic hydraulic crane............................................................................................... 11

b. Fishing winches ..................................................................................................................................11

c. Revolving rear gantry "A-frame".................................................................................................... 11

d. Net drum winch..................................................................................................................................11

e. Winch with net probe, ....................................................................................................................... 12

f. Revolving gantry, ...............................................................................................................................12

g. Davit with measuring reel, ................................................................................................................12

h. Oceanographic winches, .................................................................................................................... 12

i. Extending mast...................................................................................................................................12

j. The SEATEC oceanographic winch............................................................................................. 13

IX. Laboratories, activity zones and workstations ...................................................................... 14

a. Intermediate deck (level 2) from back to front:................................................................................. 14

b. Main deck (level 1)from back to front:..............................................................................................14

c. Upper deck (level 01) .........................................................................................................................15

d. Pilothouse (level 02) ........................................................................................................................... 15

X. Special facilities......................................................................................................................... 16

XI. Launch.................................................................................................................................... 16

XII. Data acquisition and processing system................................................................................ 17

a. General................................................................................................................................................ 17

b. Acquisition, processing and presentation software......................................................................... 18

XIII. Scientific equipment on board............................................................................................... 19a. Specific equipment. ............................................................................................................................19

b. STD equipment...................................................................................................................................19

c. Water sampling equipment ............................................................................................................... 20

d. Equipment for sampling sediments, plankton and benthic communities, and fishing equipment.20

e. Depth measuring equipment. ............................................................................................................ 20

f. Sea current measuring equipment.................................................................................................... 21

g. Equipment for measuring the speed of sound. ................................................................................ 21

h. Equipment for analysing nutrients in seawater. ............................................................................. 21

i. Sechi disks........................................................................................................................................... 21

j. Minibat................................................................................................................................................ 21

k. Lisst ..................................................................................................................................................... 22


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I. General characteristicsAs a result of its extensive infrastructure, the oceanographic research ship R/V BELGICA can

perform many assignments in the field of:

physical oceanography chemical oceanography biological oceanography seabed studies geology and geophysics fishing research

The preferred operating region comprises the North Sea up to 60 N, the Channel up to 48 N, andthe Irish Sea up to 10 W.

The main characteristics and dimensions of the "BELGICA" are:

overall length 50.90 m length between midship perpendiculars 44.95 m overall width 10.00 m height to the main deck 5.70 m depth min./max. 4.20 m / 4.55 m gross registered tonnage 765 t net registered tonnage 232 t water displacement 1132 t autonomy: - distance 5000 miles at 12 knots

- time 20 days freshwater stock 98 m engine fuel stock 165 m In order to obtain the best operating conditions, the rolling of the ship can be limited by an

anti-roll stabiliser (passive roll tank) with a content of 10 tonnes of water.

The ship is built according to the Germanischer Lloyd standards:

"GL + 100 A4 = MC AUT 16/24 RESEARCH VESSEL"

The Belgica call sign is: ORGQ

The Belgica e-mail address is: [email protected]


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II. Residential accommodationThe "BELGICA" is built to accommodate 31 people:

- crew: 15 people,- scientific staff: 16 people (provided accommodation container suitable for 4 people is used)

The accommodation is arranged as follows:

a. Upper deck (level 01):- commander (single cabin)- first officer and 2 petty officers (two double cabins)- 6 scientific staff, including the scientific coordinator (three double cabins)- mess / meeting room for staff and scientists

b. Lower deck (level 02):- 11 crew members (5 double cabins and 1 double cabin shared with a scientist)- 5 scientists (2 double cabins and 1 double cabin shared with a crew member)

c. Accommodation container:- 4 scientistsThe first officers double cabin can be used as a sick bay.

Every room, laboratory, and the pilothouse, has air conditioning.The noise in the rooms is limited to a maximum of 60 dBA.


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III. Propulsiona. Main drive

Diesel engine: "ABC DZ", 6 cylinder, 1154 kWGearbox: "REINTJES" (2.8636 :1)Axle and screw propeller: "KAMEWA", skewed back type, with adjustable speed and nominalspeed of rotation of 360 rpm, (diameter 1.95 m), fitted in a nozzle.Rudder: "JASTRAM" with high efficiency and continuously operated hinged rudder blades,driven by a hydraulic control machine, "BRUSSELLE".

b. Bow and stern screw propellersThe high speed "JASTRAM" bow and stern propellers are each driven by a 150 kW hydraulic

motor. These transverse propellers help the ship stay in position better when doingoceanographic activities in a measuring station.

c. The electrical driveThe electrical drive for the propulsion system enables the Belgica to sail slowly while keepingthe underwater noise levels well below those of the main engine.An 82 kW electric motor, driven by one of the two main generators, is then electromagneticallycoupled to the propeller axle after the main engine has been disengaged.

d. Operation of the drive systemsThe operation of the drive systems is centralised in the ships pilothouse. The transverse

propellers can be operated from both the central console in the pilothouse and from the wingsof the bridge.

e. Performance max. speed : 13.5 knots, nominal speed : 12 knots, speed during fishing activities : 4 knots, min. traction at 4 knots : 8 tonnes (fishing)

f. The automatic control and alarm systemThe various control and alarm signals in the machine room are automatically sent to the bridge.


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IV. Electrical system

a. General: Two main generators

- Diesel engine: "CATERPILAR" 275 kW;- Alternator: "VAN KAICK", 325 kVA, 440 V, 60Hz,

The available network voltages and the respective powers are given in table 1 The energy supply for the scientific measuring equipment and the IT systems comes

from a static converter ("uninterruptible power supply"): "SENTRY.RPS", 220 V 50Hz, power 20 kVA

b. Special facilities:- In order to safeguard the stabilised network voltage 220 V- 50 Hz, the geophysical

equipment (Boomer, Sparker, etc) is supplied via the 220 V- 60 Hz network.

- The various generators are mounted on dampers to reduce the vibrations transmitted to thehull (damping of frequencies between 0.1 and 5 kHz).


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V. Hydraulic unitThe "BELGICA" has a "REXROTH" hydraulic unit consisting of 2 hydraulic systems:

a. Hydraulic system I and Auxiliary systemThis system consists of:

two main pumps, driven by the main engine with a flow rate of 500 l/min at 230 bar two auxiliary pumps driven by electric motors with a flow rate of 220 l/min at 230 bar

The hydraulic system I powers the following equipment:

the fishing winches the bow and stern propellers

the net drum winch

b. Hydraulic system II

This system consists of 2 pumps driven by electric motors with a flow rate of 133 l/min at 230bar.

The hydraulic system II powers the following equipment:

rear gantry side gantry and davit oceanographic winches

c. Hydraulic system for the EFFER craneThis system consists of 2 pumps driven by electric motors with a flow rate of 42 l/min at 60

bar.


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VI. Navigation equipmentThe following navigation equipment is installed in the pilothouse. 1

a. Ships heading: gyrocompass: "ANSCHTZ STD 20" magnetic compass: "MARINE DATA",

b. Automatic pilot: "ANSCHTZ", model 102-834

c. Radar: 1 DECCA Bridgemaster unit, model E 250 1 "DECCABridgemaster" unit, model MA 180/4

d. Track plotter: Navi-Sailor 3000 navigation system from Transas connected with the DECCA

Bridgemaster radar.

e. Positioning systems: Two differential global positioning systems (DGPS).

* Thales navigation Aquarius LRK* Furuno GP90

f. Ships speed: Doppler log (dual axis) Consilium SAL 860 T

g. Water depth (only for navigation purposes, see also XIII): Echo-sounder: "ATLAS Echograph" model 481 digigraph (100 kHz), range 400 metres.

h. Automatic Identification System (AIS) Furuno model FA 100

1The equipment printed in bold is connected to the ODAS II oceanographic data acquisition and processingsystem described in section XII.


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VII. TelecommunicationsThe telecommunications are housed in 2 locations

a. The radio station. radio telephone transmitter - receiver: "DEBEG 7313" MHF/HF - SSB , 400W telex - radio converter: "REDIFFUSION GK 2000"

b. The pilothouse. VHF - transmitter - receiver: DEBEG model 63303 25 W UHF - transmitter - receiver: ELTA model AM-21 EL / K - 1000 automatic alarm receiver: DEBEG model 2340 GMDSS system - VHF transmitter - receiver: JRC model JHS32A with printer model

NKG-52 (connected to the DGPS) Furuno Navtex Receiver Model NX-700 weather chart receiver FURUNO model FAX214 Inmarsat satellite communications:

Satcom Inmarsat fleet 77 : Furuno Model Felcom with 128 kbps high speed optionfor data communications ([email protected]).

Satcom Mini M: Nera Worldphone Marine G.S.M. Siemens S4r Fax. OKIFAX 460


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VIII. Deck infrastructure and winchesa. Swivelling telescopic hydraulic crane

The " EFFER MARINE KNUCKLE, type 44.000-3SL/1M, model Knuckleboom crane with 3

hydraulic extention " crane is located at the front of the rear deck.

Characteristics and power: Winch : SWL 2.0 ton lifting (4 ton in double reeved execution) Winch drum capacity : 80m Max. load moment at base : 387 kNm Out reach (horizontal) max : 13.6 m

b. Fishing winchesThe two Brusselle fishing winches are located on the rear deck for use with the rearmostgantry.

Characteristics: maximum load 8 tonnes: hauling in 6.4 tonnes at 60 m /min local operation or from the pilothouse meters for the tension and length of the cables: local and in the pilothouse capacity:

- BB winch 1 drum with a capacity of 4000 m of 14 mm cable1 drum with a capacity of 350 m of 24 mm cable

- SB winch 1 drum with a capacity of 1200 m of 24 mm cable1 drum with a capacity of 350 m of 24 mm cable

c. Revolving rear gantry "A-frame"Characteristics: useful height : 5.90 m, width on deck : 5.00 m, capacity : 2 x 6 tonnes in the central area

2 x 8 tonnes on the outermost arm for fishing, fitted with a detachable roller at 2.45 m above the bridge, for the passage of nets, inboard operating distance : 4 m, outboard operating distance : 2.5 m.

d. Net drum winchThe "BRUSSELLE" net drum winch is located at the back of the top deck and has the followingcharacteristics:

capacity : 7 m, pulling power : 14.8 tonnes with a diameter of 0.47 m at 25.9 m/min,

3.5 tonnes with a diameter of 1.98 m at 109 m/min.


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e. Winch with net probe,The winch with net probe made by "ELAC", with a 1200 m capacity, may be installed on thetop deck on request.This winch has the following characteristics: Pulling power : 3800 kg, Mean drum rotation speed : 95 c/min, electrical cable thickness : 12.2 mm electrical cable breaking strenght : 1600 kg

f. Revolving gantry,The revolving gantry located on the side working deck (main deck) has the followingcharacteristics: capacity : 1 tonne, inboard / outboard operating distance : 1 m / 2.5 m, useful width : 1.3 m, maximum height : 3 m.

g. Davit with measuring reel,The davit with measuring reel on the side working deck (main deck).

Characteristics: capacity : 0.5 tonne, inboard / outboard operating distance : 1 m / 2.5 m, maximum height : 1.8 m.

h. Oceanographic winches,Two oceanographic winches: the first winch with one drum and the second winch with a doubledrum, both of the "LEBUS" make, are located on the top deck. The cable from the winch withone drum is taken outboard via the revolving gantry, and the cable from the winch with thedouble drum is taken outboard via the davit at the side (VIII. f,g). The side winches, gantry anddavit are operated from the main deck, in the vicinity of the operating platforms.

Characteristics of the winches: winch with one drum

- capacity : 1000 m of 5 mm cable (RVS),- pulling power : 365 kg at 60 m / min winch with double drum:- pulling power : 365 kg at 60 m / min- capacity top drum : 1000 m of 5 mm cable (RVS),- capacity bottom drum : 1700 m cable

(6.45 mm coaxial cable)- the bottom drum also has a system with slip ring contacts.

i. Extending mastThe extending mast is for taking air samples up to 4.5 m in front of the ships bow.


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j. The SEATEC oceanographic winchThe SEATEC oceanographic winch (property of UG-RCMG) is used for geographic andseabed research at great depths. When used it has to be swapped with the net drum winch.

Characteristics of the SEATEC winch: 1100 m supply cable streamlined over the entire length (umbilical fairing) with energy

cables, control and data channels.

Additional equipment: modular seismic source 100 m multichannel hydrophone array


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IX. Laboratories, activity zones and workstationsThe "BELGICA" has 7 laboratories, space for 2 container laboratories, 2 activity zones located inthe pilothouse, a storage room, cold-storage rooms, and mechanical and electrical workstations. Thetotal area of these zones is 175 m, where 115 m are for laboratories. These rooms are spread over 4floors. Each laboratory has a supply of pure seawater, freshwater, compressed air, and variousvoltage supplies. The main function of each laboratory can be adapted according to the needs of thevarious research assignments.

a. Intermediate deck (level 2) from back to front: a storage area of 70 m, with a workbench and passage for cables to the rear deck on the port side: a mechanical workstation (7m ) with a lathe, drill press, grindstone and

welding equipment (arc welders and oxyacetylene)

b. Main deck (level 1)from back to front: rear working deck of 140 m on the port side: fishing laboratory (20 m), with access to the rear deck, equipped with a

sorting bench and a tube for returning marked fish to the sea. on the port side:

a cold store to -25C (8 m)a cold store to 0C (6 m)

centre: boatswain workstation room for the Alfa Laval seawater purifier (centrifuge) on the starboard side: the side working deck of 20 m

on the starboard side: the "wet" laboratory (20 m), with access to the side working deck,equipped with fridge, freezer, benches, equipment for making Milli-RO and Milli-Q(ultrapure) water (Millipore), as well as the Sea-Bird thermosalinograph and the TurnerDesigns fluorimeter (both connected to the special seawater pipe)

on the port side: the microbiology laboratory (12 m) with benches, a laminar flowcabinet, 2 low temperature incubators and a sterilisation oven

on the port side: the chemical laboratory (10 m) with benches and a laminar flow cabinet. an analytical chain for measuring nutrients can be installed on the request of BMM. on the starboard side: the biology laboratory (12 m) with benches and a fume cupboard on the starboard side: the computer room (12 m) - the data acquisition and processing

system is described in section XII , centre: the room in which the Kongsberg-Simrad EM 1002 multibeam echosounder system

is set up.


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c. Upper deck (level 01)

Two standard 20 ft containers can be installed on the upper deck, or smaller containers withnon-standard dimensions (decompression chamber for divers, refrigerated containers, etc):

A standard 20' (13 m) container laboratory has:- workbenches- 2 sinks- supply of freshwater and seawater,- compressed air- electricity 220 V - 50 Hz single phase, 220 V 60 Hz three phase,- air conditioning.

Clean Lab container:- divided into 2 compartments: the lock and the clean room.- the lock contains the air conditioning with 98% filter in the input channel and

automatic shutoff of supply and extraction when the airco stops, 1 sink with hot and

cold water (separate boiler), a small fridge, unit for producing Milli-RO water(medium quality)- the clean room (class 1000) contains 2 laminar flow cabinets (class 100), fume

cupboard, workbench with sink, a storage tank for Milli-RO water and a unit forproducing ultrapure Milli-Q water.

The accommodation container has room for 4 people.

d. Pilothouse (level 02)The back of the pilothouse has 2 zones reserved for scientific activities:

on the port side: a 7 m zone with benches for measuring and recording equipment for echo-sounders, seismography, Side Scan Sonar, etc.

on the starboard side: a 6 m zone with operating station for the fishing winches with alldetection equipment for fishing research.

on the starboard side: a 4 m zone with the multibeam operating systemNote:

To help secure the equipment in the laboratories, there are securing rails on all workbenches and onthe adjacent walls.


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X. Special facilitiesThese facilities are, in particular:

A sewage plant with a processing capacity of 500 l/h of dirty water. The processed dirty water and the other less dirty water is discharged on the starboard side

as far away as possible from the sampling point on the starboard side. There is also asewage tank for storing the dirty water for a period of around 24 hours.

Right at the front in the bow 3 metres below the water line is an inlet (via tubes, valves andpumps, made exclusively from high grade Cr-Ni steel and PVC) for the pure seawaterdistribution ("Non Toxic Seawater Conduct") to the various laboratories. The circuit has aflow rate of 7 m/h.

- a temperature meter connected to the ODAS II system is installed in the "Non ToxicSeawater Conduct" very close to the inlet.

- the "Non Toxic Seawater Conduct" also supplies certain instruments that are

connected to the ODAS II system whereby parameters such as salt content,turbidity, fluorescence, etc, are continuously measured.

XI. LaunchThe BELGICA has a 5 m long inflatable launch (R.I.B.) with solid base, equipped with a 40 hpoutboard engine.


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XII. Data acquisition and processing systema. General.

The Oceanographic Data Acquisition System version II (ODASII) was installed in January

1996. The presentation software was updated to Visual Basic 6.0 in August 1999.

The ODAS II system collects, processes and stores oceanographic, meteorological, navigationand other data from various measuring equipment installed on board the RV BELGICA

The ODASII system consists of the following subsystems:

The data acquisition subsystem,Around 15 different items of measuring equipment are connected by RS232 to the HewlettPackard HP 1000/A400 real-time minicomputer. The raw measurement data are stored onthe 1 Gbyte SCSI hard disk and there is a backup on a 4 Gbyte DAT tape or on a CD-ROM.

The data processing subsystem,The data are processed, distributed and stored using a Hewlett Packard HP9000 748i/100UNIX server with HP-UX 9.05 operating system.

The system contains the following components:- 32 Mbyte RAM- 2 Gbyte hard disk- 4 Gbyte hard disk- 17" colour monitor- 4 Gbyte DAT tape streamer- CD-ROM drive

The server has 2 LAN cards. One LAN card is only used for connection to the acquisitioncomputer, the other card for connection to the presentation units.

The presentation unitsPC's (HP Vectra Pentium 800 MHz) are used for the presentation (offline and real-time),which are connected to a UNIX-server via a thin Ethernet LAN. The data can be printed outon the networkprinters HP Laserjet 4 or the Lexmark Optra 45 color printer.


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b. Acquisition, processing and presentation software. The acquisition software is partly written in Assembler and partly in Fortran77.

A receiver program has been installed for each item of measuring equipment connectedto the ODAS II system.A main receiver module manages the acquisition and sends the data to the UNIXmachine.

The software installed on the UNIX server ensures that the retrieved data are processedand then stored in an Informix relational database. A number of tests are done on themeasurement data (such as range tests, etc). In addition to converting raw measurementdata into physical quantities, the processing module is also able to calculate derived

parameters. The system enables the system manager to execute management operations(export and import, back-up of the database on DAT, etc) for the ODASII database.The software is written in C, Fortran and 4GL.

The management software, written in MS-Access97, is installed on PC and contains thefollowing modules:

- control of the ODASII system, i.e. start-up of the acquisition- start-up of a measurement campaign and the start-up of 1 or more PDCs within

a measurement campaign- management of the parameter library- composition and management of the measurement campaign.

The presentation software is written in Visual Basic 6.0 and consists of 2 modules(offline and real-time).

The application is modular and consists of the following submodules:- retrieve information on a measurement campaign- real-time fixed display- real-time and offline listing- real-time and offline graph plotting- real-time and offline track plotting


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XIII. Scientific equipment on board.1a. Specific equipment. Equipment for obtaining ultra pure water for chemical analyses:

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Millipore Milli-RiOs 8- "Medium Quality"- Millipore Milli-Q - "Ultrapure Quality" 2 low temperature incubators: "MEMMERT", model icp 500, capacity 108 l

- temperature range 0C to 60 C Sterilisation oven: "Memmert", model U40

- capacity: 115 litres- maximum temperature: 300 C

Centrifuge: "Hereaus", model Labofuge I- capacity: 4 x 100 ml- maximum speed: 4400 rpm

The automatic meteorological unit: "FRIEDRICHS", measures wind direction - speed,barometric pressure, (wet and dry bulb) air temperature, and solar radiation.

Continuous centrifuge: "Alfa Laval", model MMB 304 S 11, for sampling suspendedmaterials in seawater. The centrifuge is connected to the seawater circuit (Non ToxicSeawater Conduct)

The fluorimeter: "Turner Designs", model 10-AU-005, with continuous flowmeasurement cell, is configured with a lamp and filter set for the relative measurement ofchlorophyll a, and is also connected to the "Non Toxic Seawater Conduct"

b. STD equipment. The Sea-Birdmodel SBE19 (Seacat) STD system forms part of the equipment on the

Belgica. This system is lowered in the water in the sampling stations on the starboard sideusing the oceanographic winch and davit. The parameters measured are: salinity,temperature, depth, turbidity and irradiance[PAR]. Two model SBE19 systems areavailable.

The Sea-Birdmodel SBE911PlusSTD system is installed on board the Belgica onrequest and is also lowered in the water in the sampling stations on the starboard side. Withthis system, the slip-ring system mounted on the oceanographic winch is always used. Themodel SBE 911plus system has a depth range of up to 2000 m.The parameters measured are: salinity, temperature, depth, turbidity and dissolved oxygen.

The Sea-Bird model SBE21 thermosalinograph connected to the "Non ToxicSeawater Conduct" enables continuous measurement of salinity and temperature of theseawater while sailing and when stationary.

1 The instruments printed in bold are connected directly to the ODAS II system, including the instruments mentionedin section VI.


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c. Water sampling equipment The Sea-Bird model SBE32 (Carousel) seawater sampling system has 12 "Niskin" 10

litre water sample bottles. This system is connected to the SBE911 plus STD system. Onrequest, 10 litre or 5 litre Go-Flo bottles can be fitted.

Various NISKIN 5 litre (2 off), 10 litre (17 off) and 30 litre (3 off) water sample bottlesform part of the standard equipment of the Belgica.

Go-Flo water sample bottles (10 litre (10 off), 5 litre (1 off)) may be provided on request.d. Equipment for sampling sediments, plankton and benthic communities, and fishing

equipment.

2 Boxcorers made by B.V. v/h Fa. P. Smit according to the model of the Dutch MarineResearch Institute (Nederlandse Instituut voor Onderzoek van de Zee -NIOZ)

Van Veen grab (modified model). Shipec grab "Bowers & Connelly" multicorer Reineck corer made by UG - RCMG High Speed Encased Gulfstream Plankton Sampler" "Benthic sledge made by S.K.B. according to the ARCACHON model. 3 m trawl with shrimp net For bigger fish, various trawl lengths with appropriate nets are used. This equipment is the

property of the Department of Sea Fishing and is only operated by this department onboard the Belgica.

e. Depth measuring equipment.The following equipment is used for bathymetric recordings:

An oceanographic echo-sounderATLAS DESO 22 with 2 frequencies: 33 kHz and 210kHz, with respective ranges up to 1500 m and 250 m. This echo-sounder is connected to aswell compensator made by TSS model 320B.This echo-sounder is also connected to a "RoxAnn" floor discriminator. This floordiscriminator allows the nature of the seabed to be determined (provided sufficient bedsamples are taken for calibration) by analysing the echo signals of the ATLAS DESO 22echo-sounder.

The Kongsberg-Simrad EM1002 multibeam echo-sounder for high resolution bathymetryand sediment classification. This system belongs to the Ministry of Economic Affairs Board of Quality and Safety. The multibeam has frequencies of 93 kHz and 98 kHz and hasa range of 2 to 1000m. The multibeam echo-sounder transducer is built into the ships keel,and is lowered about 1 metre below the keel with a rod when making bathymetricrecordings. The transducer is also secured to a mechanical compensation system tominimise the effect of the thudding of the ship.

Two separate echo sounders are available for fishing:


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- a "FURUNO" echo-sounder, model FE 824 with 2 frequencies (50 and 200 kHzselectable HF, LF or dual frequency), with respective ranges of 2100 and 630 m.

- a colour echo-sounder "FURUNO FCV 381"with 2 frequencies (28 and 88kHz selectable HF, LF or dual frequency) with range of 1600 m. Image recordingon magnetic tape is possible.

f. Sea current measuring equipment The Acoustic Doppler Current Profiler (ADCP) made by RD Instruments Ltd, model

Workhorse Mariner WH300 300 kHz, with a 100 m range, measures the absolute speedand direction of the current, in many layers of seawater simultaneously while the ship issailing.The transducers of the ADCP are also built into the ships keel.

The Acoustic Doppler Current Profiler (ADCP) made by RD Instruments Ltd, modelWorkhorse Sentinel WH1200(1200 kHz) with a 15 mrange measures the absolute speedand direction of the current in many layers of seawater simultaneously. This equipmentworks autonomously on battery power and stores the measured data in an internal memory.

This unit is anchored to the seabed using a Trawl Resistant Bottom Mount (TRBM).This unit can be provided on request.

g. Equipment for measuring the speed of sound. The speed of sound profiler made by Applied Microsystems Ltd, model SVPlus, used on

board the Belgica is owned by the Ministry of Economic Affairs Board of Quality andSafety. The parameters measured are speed of sound, temperature and depth.The speed of sound measurements in seawater are used to correct the depth measurementsfrom the echo-sounders, in particular those made with the Multibeam system.

h. Equipment for analysing nutrients in seawater. In consultation with the BMM Ostend Measuring Department (chemical laboratory), one

of the nutrient analysis systems can be installed on board. Both systems haveaccompanying software for controlling the system and for data processing.

System 1: SKALAR Sanplus (5-channels) auto-analyser for measuring nutrients: NOx -NO2 - NH4 - PO4 and Si in seawater and estuary water.

System 2: SKALAR Sanplus (3-channels) auto-analyser for measuring Total - N, Total - Pand DOC (dissolved organic carbon) in seawater and estuary water.

i. Sechi disks2 Sechi disks are available (black/white) for measuring the penetration of sunlight in seawater.

j. MinibatMiniaturized Towed Instrumentation Platform 8820 from Guildline. This device shall be towedfrom the RIB Tuimelaar equipped with a winch (100 m).The equipment that can be installed on the Platform is a CTD (Seabird, Seacat, SBE19) and afluorometer (Chelsea, UV Aquatracka).

These devices can be operated aboard the R/V Belgica on request to MUMM.


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k. LisstLaser In Situ and Transmissionmeter (LISST-100) Sequoia Scientific Inc.On request to MUMM this device can be operated on board of the R/V Belgica to executesediment transport studies.


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TABLE 1: Electrical power supplies available for scientific purposes._____________________________________________________________________

LOCATION Voltage Frequ. Phases Board/ Circuit PowerCircuit Breaker

(V) (Hz) (number) (No.) (A) (kVA)_________________________________________________________________________BRIDGE 220 60 1 L602/24 16 3.5

220 50 1 L703/1 16 3.5220 50 1 L703/2 16 3.524 dc EB 25 10 0.24

REAR DECK 440 60 3 P120 50 38440 60 3 P105 6 4.5

FISH LAB 220 60 3 L607 32 12220 60 1 L615/1 16 3.5

220 50 1 L712/1 16 3.524 dc EB 20 10 0.24

WET LAB 220 60 3 L615/10 16 6220 60 1 L615/5 16 3.5220 50 1 L712/5 16 3.524 dc EB 18 10 0.24

LAB 1 220 60 3 L615/10 16 6220 60 1 L615/2 16 3.5220 50 1 L712/2 16 3.524 dc EB 18 10 0.24

LAB 2 220 60 3 L615/10 16 6220 60 1 L615/3 16 3.5220 50 1 L712/3 16 3.524 dc EB 19 10 0.24

LAB 3 220 60 3 L615/10 16 6220 60 1 L615/4 16 3.5220 50 1 L712/4 16 3.524 dc EB 19 10 0.24

SHELTER ROOM 440 60 3 P102/5 16 12220 60 3 L615/12 16 6220 50 1 L712/7 16 3.5

CONTAINER DECK 440 60 3 P504 16 12440 60 3 P102/6 25 19220 60 3 L608 32 12220 60 3 L609 32 12220 60 1 L615/8 20 4220 50 1 L704 32 7220 50 1 L705 32 7

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