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Guaymas Basin
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2018
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Atlantis
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Project Title: |
Collaborative Research: Interactions of microbial carbon cycling with sulfur and nitrogen transformations in Guaymas Basin hydrothermal sediments |
Project Status: |
Submitted |
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Principal Investigator: |
Samantha B. Joye, Georgia |
Project Institution: |
Georgia |
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Project ID: |
105719 |
Version #: |
1 |
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Date Submitted: |
2/24/2017 11:12:00 AM |
Created By: |
Samantha B. Joye |
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Date Last Modified: |
2/24/2017 11:12:00 AM |
URI Serial #: |
None |
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Funding Agencies: |
NSF/OCE/BIO - OCE-1357360; OCE-1357238 - Funded |
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Summary of Field Work: |
This expedition will examine microbial processes affecting C-N-S-Fe dynamics in hydrothermally-altered sediments. Our field program requires two visits per site to deploy and recover in situ instrumentation. We plan on visiting at least 4 sites, possibly 5. These sites were visited on the Dec. 2016 Guaymas cruise and Sentry maps were developed, meaning we have excellent targets for the next cruise. We plan to focus on the following sites: Cathedral Hill (4 dives), Mat Mound (2 dives), Aceto Balsamico (2 dives), and Megamat (2 dives). Our work will involved ALVIN operations - collecting temperature profiles, bottom water samples and sediment cores - and night operations collecting water samples in the mid-water hydrothermal plumes. We will also deploy osmosamplers using elevators (with positioning via the ALVIN). |
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Summary of Facility Requirements: |
This work will require the ALVIN, the MBES system, and the CTD rossette; we will be doing radiotracer work on board so need the rad van on board the ship.
The Science Party will occupy most of the labs as well as the cold rooms on board the ship. |
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Summary of other requirements and comments: |
This work needs to be done in a stable weather window; August/September are not optimal times of year for this expedition. |
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Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
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Request ID: |
1009277 |
Created By: |
Samantha B. Joye |
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Date Last Modified: |
2/24/2017 11:12:00 AM |
Date Submitted: |
2/24/2017 11:12:00 AM |
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Year: |
2018
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Ship/Facility: |
Atlantis
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Optimum Start Date:
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10/10/2018 |
Dates to Avoid: |
The rainy/storm season should be avoided (May to September; August and Sept. are particularly problematic). It is also worth noting that hurricane season in the Gulf of California runs from January to October/November. |
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Earliest Start Date: |
10/15/2018 |
Multi-Ship Op: |
No |
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Latest Start Date: |
11/15/2018 |
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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10 |
2 |
1 |
2 |
15 |
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: |
We need the Alvin/Atlantis to accomplish our research goals, given the number of sediment cores we need to retrieve ALVIN is the best platform for our program. |
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Short Description of Op Area
for use in schedules: |
Guaymas Basin |
| Description of Op Area: |
Guaymas Basin is the deepest part of the Guaymas spreading center in the central Gulf of California, ca. 2000 m deep. The area is hydrothermally active. The seafloor is covered with hydrothermally heated sediments; hydrothermal chimneys, sulfide mounds, microbial mats and vent fauna are abundant. The area is quite compact: On our previous cruises in 2008 and 2009, most dives were in an area of 500 x 500 m. A few hydrothermal features are farther off, but everything is within a radius of a few miles. |
| Op Area Size/Dia.: |
10 |
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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? |
Yes |
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.) |
Mexican clearance will be required, also for collecting microbial mat and sediment specimens. One or two Mexican observers/scientists will be members of the cruise party. On the Dec. 16 cruise, obtaining the necessary Mexican clearance was not a problem but it did require more time than the previous expeditions did. |
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Requested Start Port |
Intermediate Port(s) |
Requested End Port |
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Guaymas, Mexico |
None |
Guaymas, Mexico |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
We would like the science party to embark/disembark the ship in Guaymas, MX but it is imperative that science equipment and most science samples be loaded and unloaded in a US port. We request to load in Port Everglades and off-load in San Diego. |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Samantha B. Joye, Georgia |
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# in Science Party |
22 |
# of different science teams |
3 |
# 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 |
The size of the science party is estimated to be between 18-20 people plus two Mexican scientist for a total of ca. 22 people. |
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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. |
We will be doing radioisotope tracer work in the isotope van - as we have done many times in the past on board the Atlantis.
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
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