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NDBC DART 2012
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2011
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New Horizon
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Project Title: |
Deep-ocean Assessment and Reporting of Tsunamis (DART) Service of Stations 46412 and 43412 |
Project Status: |
Submitted |
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Principal Investigator: |
Jeff Jenner, NOAA_NDBC |
Project Institution: |
NOAA_NDBC |
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Project ID: |
103127 |
Version #: |
1 |
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Date Submitted: |
9/22/2011 4:13:00 PM |
Created By: |
Jeff Jenner |
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Date Last Modified: |
10/11/2011 3:36:00 PM |
URI Serial #: |
None |
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Funding Agencies: |
NOAA/NWS/NDBC - NONE - Funded |
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Summary of Field Work: |
The ship will transit to DART station 43412, located approximately 230 nautical miles southwest of Manzanillo, Mexico (16°2'1" N 107°0'4" W). Upon arrival at the station, the ship's survey technician will perform a full depth CTD cast. Data is only required on the downcast, and the CTD can be lowered at maximum allowable speed. Required measurements are depth, salinity, and speed of sound. The survey tech will use the sound velocity data and the ship's echosounder to calculate water depth. After the CTD cast, NOAA techs will attempt to contact the existing Bottom Pressure Recorder (BPR) and activate the acoustic release. This was attempted on May 22, 2011, with no success. If BPR release is successful, the ship's deck crew and NOAA techs will recover the BPR and floats. The ship's deck crew and NOAA techs will then deploy the buoy on a new mooring, then deploy the BPR. The ship will remain on station for six hours after the BPR has settled on the sea floor to ensure that the system is operating properly.
When released from station 43412, the ship will transit approximately 1,230 nautical miles northwest to station 46412, which is located 170 nautical miles west of San Diego (32°27'26" N 120°33'38" W). NOAA techs will send a signal to the BPR acoustic release and will recover the BPR and floats when they surface. NOAA techs and the ship's deck personnel will then bring the existing buoy on board and exchange it for a new buoy using the same mooring. Techs will deploy the new buoy, then deploy the new BPR. The ship will remain on station for six hours after the BPR has settled on the sea floor to ensure that the system is operating properly. During this time, the ship's survey technician will perform a full depth CTD cast. Data is only required on the downcast, and the CTD can be lowered at maximum allowable speed. Required measurements are depth, salinity, and speed of sound. After being released from station 43412, the ship can transit to port.
When the ship gets within 50 nautical miles of each station, the ship's survey technician will activate the Acoustic Doppler Current Profiler and continue its operation until the work is done at the station and the ship is 50 nautical miles away from the station. A 75 kHz ADCP is required, though a 38 kHz ADCP is desired. The ship's echosounder and transducer system shall be rated for a depth of at least 4,000 meters. The depth at station 43412 is 3,245m and at 46412 is 3,717m.
The ship will leave port on November 30, 2011 and return on December 13, 2011. Equipment delivery and ship loading will be November 28-29 and demobilization will be on December 14. NOAA's gear will consist of two 3,500 pound DART buoys, two bottom pressure recorders (each with an anchor and string of glass ball floats), two 6'x6'x6' aluminum mooring line boxes, two 3,000 pound anchors, 12 spools of 3/4" nylon line, and assorted tools and supplies in small shipping containers. |
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Summary of Facility Requirements: |
R/V New Horizon
Crane for retrieving and deploying buoys (3,500 pounds minimum)
Survey tech, crane operator, and deck crew
CTD (full ocean depth, 4,000m)
Echosounder (4000m depth)
ADCP (75 kHz required, 38 kHz desired) |
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Summary of other requirements and comments: |
Project Amount is for 3.5 days. This is in addition to the 10.5 day credit that NOAA NDBC has with SIO. The Project Amount does not include the UNOLS administrative cost of $5775.45, and assumes NOAA will not be charged for dockside mobilization/demobilization days (November 28-29 and December 14). This is subject to availability of funds and approval of ISA (submitted to NOAA OMAO for review 9/21/11). |
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Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
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Request ID: |
1004911 |
Created By: |
Jeff Jenner |
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Date Last Modified: |
10/11/2011 3:36:00 PM |
Date Submitted: |
9/22/2011 4:13:00 PM |
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Year: |
2011
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Ship/Facility: |
New Horizon
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Optimum Start Date:
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11/30/2011 |
Dates to Avoid: |
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Earliest Start Date: |
11/30/2011 |
Multi-Ship Op: |
No |
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Latest Start Date: |
11/30/2011 |
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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14 |
2 |
1 |
0 |
17 |
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: |
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Short Description of Op Area
for use in schedules: |
Ca/MX Coast |
| Description of Op Area: |
California and Mexico Coast |
| Op Area Size/Dia.: |
1,400 |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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16° 1.98' N
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107° 0' W
map
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Ending
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32° 27' N
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120° 33.6' 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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San Diego, CA, USA |
None |
San Diego, CA, 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: |
Michael Brewer, NOAA_NDBC |
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# in Science Party |
4 |
# 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 |
Survey tech to operate CTD, ADCP, and Echosounder |
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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. |
CTD (full ocean depth, 4000m), ADCP (75 kHz required, 38 kHz desired), Echosounder (4000m depth minimum)
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
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