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Hypoxia in sediments
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2010
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Pelican
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Project Title: |
Hypoxia effects on processes in muddy sediments in the northern Gulf of Mexico |
Project Status: |
Submitted |
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Principal Investigator: |
Kevin B. Briggs, NRL |
Project Institution: |
NRL |
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Project ID: |
101538 |
Version #: |
2 |
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Date Submitted: |
4/7/2008 4:14:00 PM |
Created By: |
Kevin B. Briggs |
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Date Last Modified: |
5/4/2009 12:27:00 PM |
URI Serial #: |
None |
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Funding Agencies: |
NAVY/NRL - NONE - Funded |
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Summary of Field Work: |
Sample sediments and benthic communities on temporal and spatial scales for porosity, permeability, shear strength, erodibility, sound speed and sound attenuation during the development of a major hypoxic zone off the Louisiana coast. In addition to box cores, a modified ISSAMS with mini-flume, and sediment-profile imaging camera will be used to ascertain the extent and persistence of hypoxic zones. |
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Summary of Facility Requirements: |
Ability to deploy and recover large (0.25-sq. m) box corer, SPI camera, and In Situ Sediment Acoustic Measuring System. Deployable equipment must use hydraulic U-frame on aft deck. ISSAMS requires maximum U-frame height to clear deck. Must be able to maintain station for hours. |
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Summary of other requirements and comments: |
Berths for 6 scientists |
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Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
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Request ID: |
1002068 |
Created By: |
Kevin B. Briggs |
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Date Last Modified: |
5/4/2009 12:27:00 PM |
Date Submitted: |
4/7/2008 4:14:00 PM |
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Year: |
2010
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Ship/Facility: |
Pelican
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Optimum Start Date:
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7/15/2010 |
Dates to Avoid: |
early July or late July and extending into early August in order to sample fully developed summer hypoxic conditions |
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Earliest Start Date: |
6/28/2010 |
Multi-Ship Op: |
No |
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Latest Start Date: |
7/26/2010 |
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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9 |
1 |
1 |
1 |
12 |
Repeating Cruise?
(within same year) |
No |
Interval: |
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# of Cruises: |
1 |
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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 depends on size and capacity of U-frame (must be able to deploy large box corer that is ship equipment and handle packages of up to 2 tons). Ship should have minimum transit time to north central GOM. Ship must operate in 30-52 m water depth. Sampling must be accomplished in summer. |
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Short Description of Op Area
for use in schedules: |
Gulf of Mexico |
| Description of Op Area: |
North Central GOM off LA coast west of Mississippi River outlet and south of Atchafalaya River shelf. |
| Op Area Size/Dia.: |
60 |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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28.656° N
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92.3827° W
map
28° 39.36' N
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92° 22.962' W
map
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Ending
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28.94969° N
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89.57478° W
map
28° 56.9814' N
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89° 34.4868' W
map
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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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Cocodrie, LA, USA |
None |
Cocodrie, LA, USA |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
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Important Info on Working in Foreign Ports
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Chief Scientist: |
Kevin B. Briggs, NRL |
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# in Science Party |
13 |
# of different science teams |
1 |
# Marine Technicians to be
provided by ship operator:
(include in science party total)
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1 |
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Explanation of Science Party Requirements and Technician Requirements |
Science party needs wet and dry labs, deck space for equipment. Ship technician for connection of depth sounder to acoustic profiler. |
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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 |
| 0 PI-Provided Vans - briefly describe | MOCNESS | | |
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Explain Instrumentation or Capability
requirements that could affect choice
of ship in scheduling. |
ISSAMS package is 2 tons and needs large U-frame for deployment/recovery
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
Large Box corer (quarter-meter-squared box area) |
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