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LGM AMOC Coring
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2014
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Knorr
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Project Title: |
North Atlantic Meridional Circulation during the Last Glacial Maximum: Density Structure and Pre-formed Nitrate |
Project Status: |
Submitted |
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Principal Investigator: |
Arthur Spivack, URI_GSO |
Project Institution: |
URI_GSO |
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Project ID: |
103830 |
Version #: |
1 |
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Date Submitted: |
2/15/2013 4:39:00 PM |
Created By: |
Robert A. Pockalny |
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Date Last Modified: |
5/15/2014 9:36:00 AM |
URI Serial #: |
None |
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Funding Agencies: |
NSF/OCE/MGG - 1334606 - Funded |
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Summary of Field Work: |
This project will involve sediment cores at 7 sites in the western North Atlantic (Researcher Ridge and Nares Abyssal Plain) at water depths ranging from 1000 to 6000 m. Coring sites will be identified with multibeam swath mapping and CHIRP sub-bottom seismic data. Coring operations will include the WHOI Long Core, gravity cores, multi-cores and hydrocasts with a CTD/Niskin Bottle Rosette. Optimal cruise times are January to April, due to tropical cyclone activity in our operations area during the months of June through October. |
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Summary of Facility Requirements: |
Geophysical Site Survey:
- Deep-water multibeam bathymetry and backscatter
- CHIRP Sonar
Coring Operations:
- WHOI Long Core & shipboard support personnel
- Gravity Cores
- Multi-Core
- CTD/Rosette
- Geobiology Field Lab
- Refrigerated core container provided by WHOI Long Coring facility |
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Summary of other requirements and comments: |
Lab space for core description, sampling and analysis.
Standard core supplies (e.g., core liners, storage tubes, end caps for core liners and storage tubes, core cutters, etc).
Standard sediment description instruments (microscope, etc.)
Two -80° freezers |
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Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
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Request ID: |
1006113 |
Created By: |
Robert A. Pockalny |
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Date Last Modified: |
2/15/2013 4:39:00 PM |
Date Submitted: |
2/15/2013 4:39:00 PM |
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Year: |
2014
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Ship/Facility: |
Knorr
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Optimum Start Date:
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2/14/2014 |
Dates to Avoid: |
Due to tropical storm activity from June through October in our proposed operations area, we prefer to have our cruise scheduled from January through April. |
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Earliest Start Date: |
1/1/2014 |
Multi-Ship Op: |
No |
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Latest Start Date: |
4/30/2014 |
Other Ship(s): |
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Operating Days Needed: |
Science Days |
Mob Days |
De-Mob Days |
Estimated Transit Days |
Total Days |
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22 |
1 |
1 |
8 |
32 |
Repeating Cruise?
(within same year) |
No |
Interval: |
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# of Cruises: |
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Description of Repeating cruise requirements: |
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Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations: |
Ship Choice:
- Only the R/V Knorr can accommodate the WHOI Long Core operations.
Dates:
- January through April is the best weather window to avoid tropical storm activity in our proposed operation areas.
Number of Days:
Transit times to/from our first/last coring sites is estimated at 4 days each way (total 8 days) for transit speeds of 10 kts.
We calculated occupying each coring station for 2 days for initial survey and full suite of coring operations (gravity, 2 long cores, hydrocast, multi-core). For 7 sites that is 14 days.
We estimate a cumulative 8 days of transit time between successive coring sites.
Our experience with the Long Core system also sugegsts we will need a full day before and after the cruise to load and offload our science gear, supplies and cores.
The mob/demob times may be reduced if equipment can be loaded and/or unloaded at WHOI. |
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Short Description of Op Area
for use in schedules: |
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| Description of Op Area: |
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| Op Area Size/Dia.: |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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Ending
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Show Degrees Minutes |
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Foreign Clearance Required? |
No |
Coastal States:
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 Important Info on Foreign Research Clearances
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Are you or any member in your science party bringing in any science equipment items which are regulated for export by the International Traffic in Arms Regulations (ITAR) and/or the Export Administration Regulations (EAR)?
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No |
If yes, have you applied for the necessary permits through your export control office?
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No |
| Questions about ITAR/EAR regulations?
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Comments about foreign clearance requirements or
description of any other special permitting requirements
(e.g., MMPA, ESA, IHA, Marine Sanctuaries, etc.) |
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Requested Start Port |
Intermediate Port(s) |
Requested End Port |
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San Juan, Puerto Rico |
None |
Woods Hole, MA, USA |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
San Juan, Puerto Rico is a closest major port to our first coring site and will be able to handle the required vans and materials for use on the cruise.
Woods Hole is the home port to the R/V Knorr and is close to URI/GSO where the cores will be stored. |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Arthur Spivack, URI_GSO |
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# in Science Party |
28 |
# of different science teams |
2 |
# Marine Technicians to be
provided by ship operator:
(include in science party total)
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2 |
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Explanation of Science Party Requirements and Technician Requirements |
16 Researchers (PI's & students) for sites surveys and core curation, sampling and analysis.
10 Coring Personnel to operate long core and related systems
2 WHOI Marine Technicians to maintain underway instruments and conduct appropriate over-the-side operations (e.g., hydrocasts). |
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 Dynamic Positioning | ADCP |  Multibeam | Seismic |
| Dredging/Coring/Large Dia. Trawl Wire | Stern A-frame | Fiber Optic (.681) | 0.680 Coax Wire |
| SCUBA Diving | Radioisotope use - briefly describe | NO Radioisotope use/Natural level work | Other Operator Provided Inst. - Describe |
| 1 PI-Provided Vans - briefly describe | MOCNESS | | |
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Explain Instrumentation or Capability
requirements that could affect choice
of ship in scheduling. |
Multibeam - deepwater system with bathymetry and backscatter
Seismic - CHIRP sub-bottom seismics
Large Diameter Trawl wire for hydrocasts and gravity cores.
URI Geobiology Field Lab for microbiology and biogeochemistry sample handling and analyses
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
WHOI Long Core is requested to obtain the 45-meter cores required to sample pore waters with characteristics of the Last Glacial Maximum. |
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