Ship Request

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  Guaymas Basin  -  2018  -  Atlantis  
  Project Information  
Project Title: Collaborative Research: Interactions of microbial carbon cycling with sulfur and nitrogen transformations in Guaymas Basin hydrothermal sediments Project Status: Submitted
Principal Investigator: Andreas P. Teske, UNC_CH Project Institution: UNC_CH
Project ID: 105726 Version #: 2
Date Submitted: 2/28/2017 12:52:00 PM Created By: Andreas P. Teske
Date Last Modified: 3/8/2018 2:58:00 AM URI Serial #: None
Funding Agencies: NSF/OCE/BIO - OCE-1357238 - Funded
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, during cruise AT42-05 (Nov. 15-29, 2018). These sites were visited on the Dec. 2016 Guaymas cruise and Sentry maps were developed, meaning we have excellent targets for the 2018 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); if sampling objectives are met, we may also visit nearby off-axis locations such as Ringvent or the recently [July 2015] discovered hydrothermal mound at the northern spreading center. Our work will involve 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). Recently, AUV Sentry was added to the cruise for near-bottom water column surveys of hydrothermal areas and hydrothermal plume mapping, to be performed at night [approved by NSF in Feb. 2018].
Summary of Facility Requirements: This work will require the ALVIN, AUV Sentry, the MBES system, and the CTD rosette; 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.
Summary of other requirements and comments: This work needs to be done in a stable weather window; August/September are part of the Hurricane season and therefore not optimal times of year for this expedition. The scheduled time frame of Nov 15-29, 2018 should be fine.
Ship Request Identification
Type of Request: Primary Ship Use Request Status: Submitted
Request ID: 1009293 Created By: Andreas P. Teske
Date Last Modified: 3/8/2018 2:58:00 AM Date Submitted: 2/28/2017 12:52:00 PM
Requested Ship, Operating Days and Dates
Year: 2018 Ship/Facility: Atlantis
Optimum Start Date: 10/15/2018 Dates to Avoid: The rainy/storm season should be avoided (May to September; August and Sept. are particularly problematic). Hurricane season in the Gulf of California is late summer and early fall; most hurricanes are falling into August/September/early October. The currently chosen dates, Nov. 15-29 [already in the 2018 ship schedule for Atlantis] are fine.
Earliest Start Date: 10/1/2018 Multi-Ship Op: No
Latest Start Date: 11/15/2018 Other Ship(s): N/A

Operating Days Needed: Science Days Mob Days De-Mob Days Estimated Transit Days Total Days
10 2 1 4 17
Repeating Cruise?
(within same year)
No Interval:   # of Cruises:  

Description of Repeating cruise requirements: N/A
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, and the in-situ instrumentation that we have to deploy, ALVIN is the best platform for our program. The target area is already well mapped [most recently with SENTRY, Dec. 2016], allowing efficient navigation and sampling at dive targets. ROVs are unsuitable due to much more limited sampling and carrying capacity.
AUV Sentry was added to the cruise in February 2018, to map hydrothermal plumes in fine 3D resolution around the previously mapped hydrothermal sites.
Work Area for Cruise
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
  Lat/Long Marsden Grid Navy Op Area
27° N / 111° W map
84 map
NP13 map
27° N / 111° W map
84 map
NP13 map
  Show Degrees Minutes    
Foreign Clearance and Permitting Requirements
Foreign Clearance Required? Yes Coastal States:

 Important Info on Foreign Research Clearances  

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)?
No If yes, have you applied for the necessary permits through your export control office? No
 Questions about ITAR/EAR regulations?

Comments about foreign clearance requirements or
description of any other special permitting requirements
(e.g., MMPA, ESA, IHA, Marine Sanctuaries, etc.)
Foreign Clearance Comments: 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. 2016 cruise, the necessary Mexican clearance could be obtained at last but it did require more time than the previous expeditions did.
Port Calls
Requested Start Port Intermediate Port(s) Requested End Port
Guaymas, Mexico None, Guaymas, Mexico
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops
The current plan by WHOI for cruise AT42-05 is to mobilize in Guaymas, and to demobilize in Manzanillo. Regardless of the start port, it is imperative that science equipment and most science samples be loaded and unloaded in a US port, to avoid a repeat of the 2016 Mexican shipping disaster. At the time of updating this shiptime request [March 8, 2018], WHOI plans to load chemicals at WHOI in September, and lab gear in San Juan, Puerto Rico in October; samples and gear are offloaded post-cruise in San Diego.

 Important Info on Working in Foreign Ports

Science Party
Chief Scientist: Andreas P. Teske, UNC_CH
# in Science Party 21 # of different science teams 3 # Marine Technicians to be
provided by ship operator:
(include in science party total)
Explanation of Science Party Requirements and Technician Requirements As for the December 2016 cruise, the size of the science party is estimated to be between 18-20 people from UNC, UGA, CCU, and other collaborating institutions, plus two Mexican scientists for a total of ca. 21 people.
Instrumentation Requirements That Impact Scheduling Decisions
Selected Dynamic PositioningUnselected ADCPSelected MultibeamUnselected Seismic
Unselected Dredging/Coring/Large Dia. Trawl WireUnselected Stern A-frameUnselected Fiber Optic (.681)Unselected 0.680 Coax Wire
Unselected SCUBA DivingSelected Radioisotope use - briefly describeUnselected NO Radioisotope use/Natural level workUnselected Other Operator Provided Inst. - Describe
0 PI-Provided Vans - briefly describe Unselected MOCNESS  
Explain Instrumentation or Capability
requirements that could affect choice
of ship in scheduling.

We will be doing radioisotope tracer work using weak beta emitters [tritium, C14, S33] in the isotope van - as we have done many times in the past on board the Atlantis. We may also use non-radioactive isotopes [C13, N15].

Major Ancillary Facilities (that require coordination of schedules with ship schedule)
Unselected Helicopter Ops (USCG)Unselected Twin OtterUnselected Unmanned Aerial Systems (UAS) 
Autonomous Underwater Vehicle (AUV)
Unselected Other AUVSelected Sentry  
Coring Facility
Unselected Jumbo Piston CoringUnselected Large Gravity Core Unselected MC800 multicorer w/ MISO camera/telemetryUnselected OSU Coring Facility (MARSSAM)
Unselected Other Large Coring FacilityUnselected WHOI Long Core  
Human Occupied Vehicle (HOV)
Selected AlvinUnselected Clelia (HBOI)Unselected JSL I & II (HBOI)Unselected Other HOV
Other Facility
Unselected MISO Facility - deep-sea imagingUnselected Other FacilityUnselected Potential Fields Pool Equipment 
Remotely Operated Vehicle (ROV)
Unselected JasonUnselected Other ROV  
Seismic Facility
Unselected Ocean Bottom Seismograph Instrument Center (OBSIC)Unselected Ocean Bottom Seismograph Instrument Pool (OBSIP)Unselected Ocean-Bottom Seismometer Program (UTIG)Unselected Other Seismic/OBS Facility
Unselected PASSCALUnselected Portable MCS groupUnselected Portable MCS/SCS groupUnselected U.S. Geological Survey Ocean Bottom Seismometer Facility (USGS at WHOI)
Towed Underwater Vehicle
Unselected ARGO IIUnselected Hawaii MR1 (HMRG)Unselected IMI12 (HMRG)Unselected IMI120 (HMRG - formerly DSL 120A)
Unselected IMI30 (HMRG)Unselected Other Towed Underwater VehicleUnselected Towfish 
UNOLS Van Pool
Unselected AUV Lab Van #1Unselected Clean Lab VanUnselected Cold Lab VanUnselected General Purpose Lab Van
Selected Radioisotope Lab VanUnselected Wet Lab Van  
UNOLS Winch Pool
Unselected Mooring SpoolerUnselected Portable WinchUnselected Turn Table 
Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems.
SENTRY is requested, and has been approved by NSF, for high-resolution mapping of hydrothermal plumes around the previously mapped hydrothermal targets in Guaymas Basin. Since Sentry is already placed on RV Atlantis before and after the Guaymas cruise, no additional shipping is required; Sentry stays where it is and it put to good use during the Guaymas Basin cruise.

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