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Current Science Mission Requirements
Key performance parameters, operational characteristics, and other threshold requirements for the ARV project can be found in the tables below.
Please Note: Content on this page may have changed as the design has gone through review stages. The following PDF will have the most up-to-date information. Science Mission Requirements (PDF)
Key Performance Parameters (KPP)
Science Mission Requirements | Threshold Requirement |
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Berthing and Support Facilities | Provisions for berthing, messing, sanitation, and scientific workspaces for ≥55 science and technical personnel. |
Icebreaking | The capability to independently break ice of ≥4.5 feet @ ≥3 knots |
Icebreaking: Polar Code Notation | Obtain an ABS Polar Code: PC 3 notation |
Endurance |
Endurance of ≥90 days underway without replenishment. The criteria for meeting this requirement will be based on a Design Reference Mission (DRM) approved by NSF. |
Operational Characteristics
Science Mission Requirements | Threshold Requirement |
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Range | 17,000nm without replenishment at the defined cruise speed of ≥11 knots |
Operational Tempo | Average annual operational tempo of 250-300 days/year |
Speed |
Cruise speed of >11 knots in calm ice-free waters at ≤80% of installed propulsion motor maximum continuous rating (MCR) Objective Requirement: Cruise speed of ≥12 knots in calm ice-free waters at ≤80% of installed propulsion motor maximum continuous rating (MCR) and maximum continuous speed of ≥14 knots in calm ice-free waters. |
Sea Keeping |
≥SS4 - fully operable Targets for maximum motions in SS5 are as follows subject to further study:
Sea-keeping capabilities and environmental controls should allow year-round work in heavy seas of the Antarctic and Southern Ocean as well as within sea ice. Vessel motions should be minimized through hull design, weight control and the use of passive or active anti-roll devices such that personnel can safely work in the SS6 or greater. The design should promote the safety of equipment operation and instrument deployments. |
Station Keeping and Dynamic Positioning |
Meet ABS DPS-1 performance requirements and the following science mission requirements at best heading:
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Track Line Following |
As close as possible to objective when meeting requirements for station keeping and DP Objective requirement: Maintain a track line while conducting underway surveys for spatial sampling and geophysical surveys within ±5 meters of intended track and with a heading deviation (crab angle) of less than 45 degrees with 30 knots of wind, up to sea state 5 and 2 knots "beam" current. |
Ship and Winch Control |
Ship control and control of major deck machinery should be designed and specified with an integrated approach that:
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U/W Radiated Noise |
"Sonar self-noise" should meet or exceed manufacturer's requirements. Significant efforts should be directed towards making the ship as acoustically quiet as practical without negatively impacting icebreaking capabilities.
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Off Vessel Support for Field Work and Logistics |
Capable of support for field work off vessel on the ice, in boats, on islands and other land-based field camps and stations. It must also be capable of supporting transport of personnel, supplies and equipment to stations and field camps.
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Science and Shipboard Systems
Science Mission Requirements | Threshold Requirement |
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Navigation |
Best available navigation (real-time kinematics, differential, and 3-axis GPS) capability shall be provided with appropriate interfaces to data systems and ship control processors for geo- referencing of all data, dynamic positioning, and automatic computer steering and speed control.
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Data Network |
High-speed data processing facilities capable of handling large data sets for rapid processing, display, evaluation, and archiving are needed. System hardware should be designed to accommodate the highest data rates available at delivery of the vessel.
A split IT network with dedicated USAP servers and other equipment separate from any crew IT network is necessary.
A data presence system shall be capable of local (ship-based) data processing and further visualization of real-time data with the potential for a shore-side component. It is recommended that user input be sought by the NSF to identify key data-intensive instruments needed by a wide user group and to have these and the support systems they require set-up on the vessels. |
Real Time Data |
A well-designed "system" is required for real-time collection of data from permanently installed sensors and equipment as well as from temporarily installed sensors and equipment that allows for archiving, display, distribution, and application of the data for a variety of scientific and ship- board purposes.
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Internal Communications |
Internal communications including phones, PA, entertainment systems, ship alarms, some bridge comms, via LAN, voice and CCTV connections throughout laboratories and living spaces should be designed and provided with an integrated approach and should include:
Infrastructure for internal communications and data networks should adhere to IEEE 45 standards (or current guidelines) for keeping signal and power wiring separate and other safe reliable design considerations. While planning for this system should begin at early stages to ensure that it is integrated into the ship's infrastructure, the actual specification of hardware and operating system should be made as close to the delivery of the vessel as possible to ensure an up-to-date system. Fiber-optic cabling for data and VOIP communications should be installed throughout vessel. |
External Communications: |
Primary high-speed Internet access will be provided by a Very Small Aperture Satellite (VSAT) system. A location for installing a 2-to-3-meter VSAT or similar actively stabilized antenna will be provided in the design with a full-sky view. Above 70 degrees Latitude Internet connectivity will be provided by ganged (load equalized) systems via Low Earth Orbit (LEO) satellite systems such as Iridium Pilot, or one of several emerging LEO offerings that may provide more bandwidth than Iridium over the poles. Ship-based weather satellite receivers (e.g., Terascan TM and Dartcom) provide real- time visual and infrared imagery from NOAA HRPT and DMSP satellites with no delay. The ARV design should have a suitable mounting location for a 1.5m dynamic antenna to support direct satellite reception. The technical specifications for external communications should be re-evaluated at final design time to consider recent technical developments. The actual specification of hardware and operating system should be made as close to the delivery of the vessel as possible to ensure an up-to-date system. |
Science Seawater System |
Flow-through scientific seawater system capable of delivering ≥40 liters/minute to all laboratory spaces. Objective requirement: System capable of delivering 100 liters/minute. The underway system should be designed with the following criteria:
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Acoustic Systems: General |
The hull design and structure for transducer installation should support the installation and operation of the following systems: General Requirements:
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Acoustic Systems: Multi-Beam Mapping |
Deep Ocean and Shallow Water multibeam bathymetric mapping systems. |
Acoustic Systems: ADCP |
38 kHz and 75 kHz Acoustic Doppler Current Profilers (ADCP) Objective requirement: a 150 kHz and/or 300 kHz (ADCP) systems for use in shallow water |
Acoustic Systems: Sub-Bottom Profiler |
3.5 kHz Sub-Bottom Profiler, CHIRP or Parametric Narrow Beam Profiler. |
Acoustic Systems: 12 kHz systems |
12 kHz Echosounder and 12 kHz Acoustic Release transponder |
Acoustic Systems: Bio-Acoustic systems |
Bio-acoustic Sonars - 38, 120 and 200 kHz transducers as a minimum Objective requirement: Bio-acoustic Sonars -18 and 70 kHz in addition to the threshold requirement |
Acoustic Systems: USBL |
Ultra-short baseline (USBL) underwater systems positioning transponder (e.g., HiPAP) |
Acoustic Systems: Monitoring |
Hydrophones and Hull-mounted Underwater Cameras (forward looking) for acoustic and bubble sweep down monitoring. |
Acoustic Systems: Forward looking SONAR |
Forward looking SONAR for navigation |
Acoustic Systems: Spare Transducer Wells |
At least one spare transducer well for the installation of mission specific equipment. Transducer well should be sized to fit a ≥19" diameter transducer or the maximum size allowable by the surrounding structural members. Objective requirement: Two or more spare transducer wells for the installation of mission specific equipment. Transducer wells should be sized to fit a ≥19" diameter transducer or the maximum size allowable by the surrounding structural members. |
Seismic: |
The vessel should have the power and infrastructure to deploy seismic gear, including towed multichannel streamers at speeds of 3.5-4.5 kts in moderate (3/10-4/10) sea ice cover. Use Containerized Compressors and systems that can be easily configured on board. Need to have a regular maintenance facility to ensure equipment remains functional. (Seismic Air Compressors (Borsig-LMF) 2 each 385 scfm at 2,000 psi) |
Project Systems & Power: |
A very wide variety of scientist-supplied sampling and laboratory equipment must be accommodated, in a variety of locations on the ship, including, but not limited to, all laboratories, all science decks, and access points on the scientific seawater system, including near the intake. Design Considerations include:
Objective requirement: The ability to provide direct power to select systems designed for foreign power requirements should be considered. |
Discharges: |
Compliance with new environmental regulations, such as emissions and discharges, is required.
Science related requirements:
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Science Working Spaces
Science Mission Requirements | Threshold Requirement |
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Working deck area: |
Working deck(s) area of ≥ 5,500 ft2 Design criteria includes:
A clear foredeck area and other additional deck areas should be capable of flexible and effective installation of:
All working decks should be:
The main exterior working deck should be equipped to keep key working areas ice free. |
Laboratories: |
Scientific laboratory space of ≥ 5,700 ft2 to accommodate up to 55 scientists. Lab spaces (with approximate square footage) should include the following:
Objective requirement: Scientific laboratory space ≥ 6,500 ft2. Use Containerized Lab Vans for functions that are not needed on every cruise to the maximum extent possible. |
Layout & construction - General |
Flexibility and support for different types of science operations within limited space are the important design criteria for these vessels. Construction and Material Requirements:
Objective requirement: Installed gas bottle racks in all labs, removable, 5 bottles each. |
Layout & construction - Lighting |
Lighting Requirements:
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Layout & construction - Decks |
Lab Deck Requirements:
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Layout & construction - Fume Hoods, Sinks, Water & Air |
Fume Hood Requirements:
Sink Requirements
Objective requirement: Other design criteria to consider and include as much as possible include: Microscope Room [should be] quiet, low vibration, [with] space reservation for antivibration table, compressed air connections, water and sink, no window required. Ice makers required in 1 or 2 labs. |
Lab Electrical - General |
Each lab area is to have a separate electrical circuit on a clean bus and continuous 'household' quality power.
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Lab Electrical - Circuit and Receptacle Requirements. |
Electrical service for the labs should include:
Objective Requirement: Foreign Equipment Power Capability - 2x 20 Amp per lab and computer space at 220V 50Hz or the ability to provide conversion for foreign equipment power requirements when needed. |
Vans: |
Total supportable vans in all spaces should be ≥ 20
Objective Requirement: Total supportable vans in all spaces should be ≥ 24 |
Storage: |
Storage spaces will include:
Storage spaces should be provided in all classes represented by those presently on the Nathaniel B. Palmer, with at least that ship's present capacities except:
Objective Requirement: Maximize scientific storage space available. |
Science Load: |
Sufficient variable science load should be included in weight, draft, and stability calculations taking into account the required variable scientific equipment and systems, science storage, vans, additional work boats and deck load. |
Workboats: |
The research vessel should be equipped with two 20-to-30-ft rigid hull inflatable boats (RHIBs) or the equivalent.
In addition, include a scientific workboat (~30 ft LOA) specifically fitted out for supplemental operations at sea
Include a landing craft style workboat (25-30 ft LOA) or alternative to ensure the ability to land personnel and supplies ashore in support of field work. The RHIBs and Workboat locations on the research vessel should facilitate safe, easy and efficient launching and recovery. The preference is to be able to launch craft with personnel aboard, rather than transferring people to the boat. |
Masts: Fore and Main Mast |
The ship shall have a permanently mounted foremast that is equipped with an instrument platform for permanently mounted atmospheric and meteorological sensors. The instrument platform shall also be capable of temporarily mounting additional sensors with preinstalled cableways for routing power and data cables. Access to the instrument platform shall be built into the foremast to allow at sea servicing and installation of sensors. The foremast shall be wired by 2 x 20 Amp circuits in a waterproof junction box and include an accessible wireway linking the foremast with interior scientific wireways. Provisions for the installation of ice lights if required should be included in the design of the foremast. The main mast shall be provided with yardarms capable of supporting five scientific packages each weighing 100 pounds and measuring 2 feet wide by 2 feet long by 3 feet high. This mast should have a clear view of the sky and able to support multiple GPS antennas, meteorological and optical instrumentation. This mast shall have a top working platform of at least 3'x10' in size for servicing instruments, be wired by 4x20 Amp circuits in a waterproof junction box and include an accessible wireway linking the midships mast with interior scientific wireways. Mast and Flying Bridge design and layout must consider the mounting and location of Satellite communications systems that allow for unobstructed view of communications satellites and continuous connectivity at any heading. |
Masts: Other Sensor requirements |
The foredeck should also include a standard deck bolt pattern that easily allows the installation of a temporary (secondary) mast, davit, or crane. The davit or crane would facilitate the mission specific bow deployments of a temperature/conductivity (or other sensor) chain to sample the undisturbed upper ocean. There should be the capability to install temporarily larger and heavier atmospheric instruments (e.g., aerosol filter samplers, lidars, and upward looking radiometers, vertically pointing cloud radars) on the deck atop the bridge or other suitable place where there is an unobstructed view of the sky. There should be the ability to secure these instruments to the deck plates or the rails, with unobstructed views of the sky, adequate power, and the ability to connect to the interior scientific wireways. |
Geotechnical Coring & Drilling: |
The vessel must be able to core sedimentary sections in ice-covered seas. The vessel must be equipped to acquire long stratigraphic sections (40 m piston core). The vessel should be able to support drilling operations as allowed by sea ice movement and available ice-clearing assistance. Drilling in Antarctic waters typically requires at least one additional ship to reposition icebergs that threaten the drilling ship when engaged in operations. Be capable of accommodating temporarily installed geotechnical drilling to 300-400 m below sea floor, at water depths of up to 1250 m in ice covered areas. Improvement in sediment coring capabilities is linked to adequate laboratory and storage space for initial core analysis and cold storage. Objective requirement: 50 m piston core capability. |
Deck Incubations: |
Deck incubator positions (unshaded by structure) with a means for securing to the vessel shall be provided. Seawater delivery to each incubator with a flow capacity of 50 gallons/min is required. Incubator seawater should be within 1°C of ambient seawater temperature. Fittings for water supply and outflow drainage will be required on the deck and as close to incubator locations as possible. Drain lines should be as large as possible to ensure proper flow through the incubators along with measures to prevent freezing. The total number of incubators to be serviced at one time should be determined considering available deck space and input from science users and will determine total pump capacity required. It should be possible that at least two deck incubators can be used simultaneously side-by-side. Plumbing should include valves that can be fine-tuned to adjust flow rates. |
Mammals & Bird Observations: |
Design of the pilothouse area and/or flying bridge should include provisions for making weather- protected, heated, and obstruction free (at least a combined 180 degrees forward of the beam) observations by two to three scientific personnel. Bird and mammal observers will be on watch continuously during daylight hours and observation locations should include secured, but removable chairs, access to the navigation/data network, and a protected location for portable computers and/or logbooks. Mounting locations for big eyes or similar devices may be required for some observers. Observer locations should be free from radiation hazards generated by radars and other communication equipment. Objective requirement: Dedicated marine mammal and bird observation area. |
Accommodation and Habitability
Science Mission Requirements | Threshold Requirement |
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Habitability: Mess Deck |
Include galley and mess area capable of serving 4 meals per day isolated from noise. Objective requirement: Mess deck should be equipped with large windows for easy outside viewing and allow for natural lighting. |
Habitability: Polar Clothing Storage |
Include space to store and change into polar clothing |
Habitability: Quiet Berthing Area |
Isolate living spaces from noise; Hotel area to be 24/7 quiet zone |
Habitability: HVAC Temperature |
Maintain temperatures in normally occupied spaces (A/C spaces) of at least 70°F in the heating season and 75°F or lower in the cooling season. Other spaces can have relaxed requirements based on the use of the space. Use SNAME Technical and Research Bulletin No. 4-16 for guidance. Environmental conditions range from a minimum air temperature of -40°F or less and seawater temperature of 28°F in winter and a maximum dry bulb air temperature of 100°F (82°F wet bulb) and seawater temperature of 90°F. |
Habitability: HVAC Humidity and Air changes |
Laboratories require a non-condensing environment and shall have a relative humidity of 50% relative or lower. Other A/C spaces shall have a relative humidity of 55% or lower HVAC - rate of air changes: Use SNAME T&R Bulletin No. 4-16 for guidance |
Habitability: Airborne noise |
Airborne noise in ship compartments and at deck stations shall be specified such that the weighted sound pressure levels meet or exceed the requirements of the ABS HAB+ (WB) notation.
Airborne noise levels during normal operations at sustained speed or during over-the-side operations using dynamic positioning shall conform to standards in USCG NVIC No. 12--82 and IMO Resolution A.468(XII), "Code on Noise Levels on Board Ships." Objective requirement: Meet or exceed ABS HAB++ (WB) notation. |
Habitability: Vibration |
The ship and all ship components shall be free from excessive vibration.
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Habitability: Lighting |
Lighting levels shall generally exceed by 30% the values given in IESNA RP-12-97, Marine Lighting, Table 3.
Objective requirement: Labs have natural lighting to the extent possible, with the ability to black out portholes. |
Habitability: Human Engineering |
Human engineering principles should be applied in the design of workspaces, including the use of natural lighting where possible. Headroom shall be maximized where possible with the following defined minimums from the deck to the underside of the finished overhead:
Headroom space and room for the installation of tall equipment shall be maximized while balancing the need for cable trays, adequately sized ventilation ducts, lighting, etc. Objective requirement:
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Construction, Operation and Maintenance
Science Mission Requirements | Threshold Requirement |
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Green Ship: |
Meet IMO, USCG, Polar Code and Antarctic Treaty requirements. Environmental, sustainable ship design features should be incorporated in vessel design, but in use must not interfere substantively with critical mission performance criteria such as icebreaking capacity, endurance, and range. Objective requirement: These features might be included in the design and specifications:
A hybrid battery system should be considered as a potential addition to a diesel-electric configuration, with a goal of being able to provide zero emission periods for air sampling and quiet ship operations. Underway battery operation periods of approximately 1 to 4 hours at slow speeds (1 to 3 knots) or while holding station in calm weather is desired. A hybrid battery system also offers additional benefits in terms of peak power load shaving and instantly available power reserve in case of a generator failure. The capacity of the battery system should be maximized within the constraints of space, weight, and overall project cost. |
ADA Compliance: |
Implement ADA Guidelines as feasible to accommodate disabilities that meet USAP qualifications for participation, within the budget and size constraints for the vessel. Reference: ADA Guidelines for UNOLS Vessels_Final_Feb08.pdf. Implement specific guidelines detailed in NSF Memo (Ref 3 Jan 2022) |
Maintainability: |
Starting with the earliest elements of the design cycle, the ability to maintain, repair, and overhaul these vessels, and the installed machinery and systems efficiently and effectively with a small crew should be a high priority.
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Operability: |
Design should ensure that the vessel could be effectively and safely operated in support of science by a well-trained, but relatively small crew complement.
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Life cycle costs: | A thorough evaluation of construction costs, outfitting costs, annual operating costs, and long- term maintenance costs should be conducted during the design cycle in order to determine the impact of design features on the total life cycle costs. |