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Alkalinity flux
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2021
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Savannah
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Project Title: |
Role of Riverine Discharge on the Benthic Flux of Alkalinity to Continental Margins |
Project Status: |
Submitted |
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Principal Investigator: |
Martial Taillefert, GaTech |
Project Institution: |
GaTech |
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Project ID: |
106599 |
Version #: |
2 |
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Date Submitted: |
8/13/2019 10:03:00 PM |
Created By: |
Martial Taillefert |
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Date Last Modified: |
4/3/2020 9:05:00 PM |
URI Serial #: |
None |
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Funding Agencies: |
NSF/OCE/CO - 1948914 - Funded |
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Summary of Field Work: |
Benthic lander deployments; MC-800 multi-corer needed to collect sediment cores, and CTD casts |
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Summary of Facility Requirements: |
wet and dry lab space; A-frame for benthic lander deployments (tethered to surface or free lander) and multi-corer deployments to ~1500 m water depth |
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Summary of other requirements and comments: |
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Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
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Request ID: |
1010663 |
Created By: |
Martial Taillefert |
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Date Last Modified: |
8/14/2019 5:28:00 PM |
Date Submitted: |
8/13/2019 10:03:00 PM |
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Year: |
2021
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Ship/Facility: |
Savannah
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Optimum Start Date:
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7/12/2021 |
Dates to Avoid: |
Mid-summer is needed to catch the return of the Mississippi River to baseflow conditions. November-December season needed to catch the end of the low discharge season for repeated cruise. The 3rd cruise is one-day long as part of a course at Georgia Tech and can only be taken on March 6 to match course requirements. |
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Earliest Start Date: |
7/8/2021 |
Multi-Ship Op: |
No |
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Latest Start Date: |
7/19/2021 |
Other Ship(s): |
N/A |
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Operating Days Needed: |
Science Days |
Mob Days |
De-Mob Days |
Estimated Transit Days |
Total Days |
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34 |
2 |
2 |
24 |
62 |
Repeating Cruise?
(within same year) |
Yes |
Interval: |
3-4 months |
# of Cruises: |
3 |
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Description of Repeating cruise requirements: |
This project investigates the effect of Mississippi River discharge to the Louisiana shelf and slope. The repeating cruise has to be scheduled in the winter at the end of the low discharge period (preferably end of November (departure on Nov. 15). |
Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations: |
It is important to catch the return of the Mississippi River discharge to baseflow conditions, typically in mid-July. It is also important to repeat the cruise during the Winter (November-January period) at the end of the low discharge conditions. We have long experience with the RV Savannah crew for deployments of our benthic landers in shallow and deep waters. Their expertise is key to the success of the research objectives. |
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Short Description of Op Area
for use in schedules: |
Louisiana Shelf |
| Description of Op Area: |
Two transects from the Mississippi River mouth to the Louisiana Shelf (hypoxic zone) and slope across the Mississippi Canyon |
| Op Area Size/Dia.: |
100 |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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28° 54' N
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88° 37.8' W
map
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Ending
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28° 48' N
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91° 19.2' W
map
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Show Degrees Minutes |
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Foreign Clearance Required? |
No |
Coastal States:
NONE |
 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.) |
N/A |
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Requested Start Port |
Intermediate Port(s) |
Requested End Port |
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Savannah, GA, USA |
None |
Savannah, GA, USA |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
LUMCON |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Martial Taillefert, GaTech |
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# in Science Party |
12 |
# of different science teams |
3 |
# 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 |
Large science crew request to handle deck work and lab work. Technician should provide CTD, trawl winch for sediment coring and lander deployments (2-3 landers), and surface data acquisition system |
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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. |
Need multi-corer (MC-800) to collect sediments to ~1500 m water depth. Deck space is required for two or three benthic landers that will be provided by the science crew for deployments in shelf and slope.
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
MC800 multicorer for sediment coring down to 1500 m water depth (MISO not required as ship cannot accommodate) |
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