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Eastern IO Habitat
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2021
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Roger Revelle
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Project Title: |
Collaborative Research: Mesoscale Variability in Nitrogen Sources and Food-Web Dynamics Supporting Larval Southern Bluefin Tuna in the Eastern Indian Ocean |
Project Status: |
Submitted |
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Principal Investigator: |
Michael R. Landry, SIO |
Project Institution: |
SIO |
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Project ID: |
106248 |
Version #: |
6 |
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Date Submitted: |
8/13/2018 11:04:00 AM |
Created By: |
Michael R. Landry |
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Date Last Modified: |
9/19/2019 4:12:00 PM |
URI Serial #: |
None |
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Funding Agencies: |
NSF/OCE/BIO - 1851558 - Funded |
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Summary of Field Work: |
Requested cruise duration is 34 science + 4 transit days in the eastern Indian Ocean, Indonesian ThroughFlow area (onloading/offloading in Darwin, Australia). We will conduct experimental/biogeochemical studies of nitrogen cycling, plankton dynamics and larval tuna ecology with sampling transects across mesoscale features (10-12 days) and following drifters (Lagrangian design) at various locations in the region (5 individual experiments, each lasting ~4 days). Questions addressed are specific to the NW Monsoon period, which coincides with the spawning peak of Southern Bluefin tuna in the region. The most desirable cruise time is mid-to-late January and February 2021. |
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Summary of Facility Requirements: |
R/V REVELLE or similar class vessel (~30 scientists), good station keeping for drifter deployment & recovery in strong winds, high seas
CTD & 24-bottle rosette - T, S, O2, PAR sensor, fluorometer, transmissometer;
Isotope van |
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Summary of other requirements and comments: |
Cruise timing is critical to the experimental program, which relates specific aspects of the seasonal (monsoonal winds, N sources) forcing to seasonal spawning of southern bluefin tuna |
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Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
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Request ID: |
1010061 |
Created By: |
Michael R. Landry |
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Date Last Modified: |
9/19/2019 4:12:00 PM |
Date Submitted: |
8/13/2018 11:04:00 AM |
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Year: |
2021
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Ship/Facility: |
Roger Revelle
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Optimum Start Date:
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1/22/2021 |
Dates to Avoid: |
Project is season specific, late NW monsoon coincides with a peak in tuna spawning in the region |
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Earliest Start Date: |
1/15/2021 |
Multi-Ship Op: |
No |
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Latest Start Date: |
1/31/2021 |
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 |
4 |
42 |
Repeating Cruise?
(within same year) |
No |
Interval: |
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# of Cruises: |
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Description of Repeating cruise requirements: |
N/A |
Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations: |
N/A |
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Short Description of Op Area
for use in schedules: |
NW Australia |
| Description of Op Area: |
NW Australia, south of Indonesia, Indonesian ThroughFlow area |
| Op Area Size/Dia.: |
500-600 nm dia |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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14° 30' S
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120° 0' E
map
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Ending
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16° 36' S
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115° 0' E
map
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Show Degrees Minutes |
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Foreign Clearance Required? |
Yes |
Coastal States:
Australia |
 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.) |
We will apply for Australian clearance if research proposal/cruise is approved. We do not expect this to be a problem as Australian researchers will also be on the cruise and share in data products. |
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Requested Start Port |
Intermediate Port(s) |
Requested End Port |
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Port Darwin, Australia |
None, |
Port Darwin, Australia |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
Other Australian port of comparable distance to the study region would also be suitable. Port Darwin seems most convenient. |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Michael R. Landry, SIO |
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# in Science Party |
30 |
# of different science teams |
6 |
# 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 |
This will be a large collaborative project with 24/7 deck operations. Two Res Techs are therefore needed. |
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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. |
14C primary production measurements
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
Radioisotope van needed for 14C primary production measurements. |
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