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Hi Wind Gas Exchange
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2013
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Atlantis
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Project Title: |
Collaborative Research: Measuring Air-Sea Gas Exchange in High Winds for Improvement of Physics-Based Air-Sea Transfer Parameterizations |
Project Status: |
Submitted |
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Principal Investigator: |
Barry J. Huebert, UH |
Project Institution: |
UH |
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Project ID: |
102430 |
Version #: |
1 |
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Date Submitted: |
3/12/2010 8:49:00 PM |
Created By: |
Barry J. Huebert |
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Date Last Modified: |
8/5/2010 1:47:00 PM |
URI Serial #: |
none yet |
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Funding Agencies: |
NSF/AGS - AGS 1036062 - Funded |
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Summary of Field Work: |
We intend to study gas exchange in high winds using eddy covariance. The exchange itself will be measured from a bow tower or jackstaff holding inlets, sonic anemometers, and a variety of meteorological sensors. We will probably steam slowly into the wind for about 4 weeks. Concurrent measurements of sea water gas concentrations and surface physics (whitecapping, bubbles, wave slope, wave age, radiative fluxes, ...) will be used to establish relationships between the observed rates of gas exchange and the factors controlling those rates. Our ultimate objective is to improve physics-based descriptions of gas exchange for use in climate models. |
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Summary of Facility Requirements: |
We need a ship capable of carrying a substantial scientific party into heavy seas. Many of our groups use container labs near the bow to minimize transport distances between the jackstaff inlets and our analytical gear. We may need to house 3-4 container labs forward. (We have put 4-5 on the Brown's 02 deck, so Atlantis and sister ships should work.) The scientific party will be in the range of 15-25 persons, depending on which groups are funded to work with us. We may need to drop a buoy or two off and recover them, but otherwise there will be minimal work over the side. Stability in the water is an important feature, as is the ability to work in winds of 40 knots or more. Icebreakers are unsuitable because of their tendency to roll so much our eddy covariance data is degraded. The 30-40 knot wind speed range is very poorly studied. Our objective is to fill this gap and hopefully get a little data above 40 knots. |
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Summary of other requirements and comments: |
Although we are basing this request on a proposal from UH and CU, numerous groups from other institutions have expressed a desire to join us. (The idea is to have redundant gas flux measurements with which to identify flux systems that may not be working properly.) Thus, much of the scientific party is yet to be identified, based on which of these collaborators are able to obtain funding to participate. We are considering East of Newfoundland, the Gulf of Tehuanapec, and the Southern Ocean as study sites. |
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Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
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Request ID: |
1003715 |
Created By: |
Barry J. Huebert |
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Date Last Modified: |
3/12/2010 8:49:00 PM |
Date Submitted: |
3/12/2010 8:49:00 PM |
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Year: |
2013
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Ship/Facility: |
Atlantis
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Optimum Start Date:
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10/15/2013 |
Dates to Avoid: |
The optimum time in 2013 depends on the study location we choose. We don't yet have a final decision, but will before the end of 2010. |
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Earliest Start Date: |
9/1/2013 |
Multi-Ship Op: |
No |
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Latest Start Date: |
3/1/2014 |
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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28 |
3 |
2 |
6 |
39 |
Repeating Cruise?
(within same year) |
No |
Interval: |
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# of Cruises: |
1 |
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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 a Class 1 vessel to carry a large party into very high winds and rough seas. The request for 4 weeks on station is because of the probability of finding the high winds we need. East of Newfoundland, for example, we may find winds above 17 m/s 5-8 days out of 28 in DJF. In the Gulf of Tehuanapec it might be 3-5 days in this same season. In both cases, the high winds come with synoptic systems at ~weekly intervals. Staying out 4 weeks seems the minimum to ensure a handful of high-wind encounters. The same is true of the Southern Ocean, but the season there would be April through August. |
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Short Description of Op Area
for use in schedules: |
Hi Wind Region |
| Description of Op Area: |
Still choosing among E of Newfoundland, Gulf of Tehuanapec, and East of Punta Arenas |
| Op Area Size/Dia.: |
50 |
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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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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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None |
None |
None |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
Depends on choice of study area. Start and Recover in same place, with no intermediate stops. Ports may be San Diego for Gulf of Tehuanapec; WHOI for E of Newfoundland; and Punta Arenas for Southern Ocean |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Barry J. Huebert, UH |
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# in Science Party |
25 |
# of different science teams |
10 |
# 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 |
Each group will be measuring a different set of related parameters, occasionally redundant with another group. In each case there are only a few groups in the world capable of making these specialized measurements. We may or may not need an operator-supplied technician, but want to keep that option open. |
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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 |
| 4 PI-Provided Vans - briefly describe | MOCNESS | | |
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Explain Instrumentation or Capability
requirements that could affect choice
of ship in scheduling. |
VAns near the bow is about it. We'll be working in the lower atmosphere and surface ocean.
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
We may need to lunch some weather balloons from the rear of the ship. |
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