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Coastal Methane
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2022
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Hugh R. Sharp
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Project Title: |
Constraining Global Coastal Ocean Methane Emissions to the Atmosphere |
Project Status: |
Submitted |
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Principal Investigator: |
John D. Kessler, U of R |
Project Institution: |
U of R |
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Project ID: |
106262 |
Version #: |
4 |
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Date Submitted: |
8/14/2018 12:28:00 PM |
Created By: |
John D. Kessler |
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Date Last Modified: |
9/16/2020 1:09:00 PM |
URI Serial #: |
None |
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Funding Agencies: |
NSF/OCE/CO - 1851402 - Funded |
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Summary of Field Work: |
This project will continuously measure and sample surface ocean waters for dissolved CH4, nutrients, dissolved oxygen, and chlorophyll as well as the atmosphere for CH4. These measurements will be made underway as we transit from Lewes, DE to the Gulfport, MS.
In addition, we will collect water column samples for natural isotopes of methane (14C-CH4 and d13C-CH4) at locations along this transect. This involves large volume sampling to be supplied by the PI. Before or after this sampling operation, we will also conduct a CTD at each station. |
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Summary of Facility Requirements: |
1) CTD with 10 L niskin bottles.
2) Separate winch wire to attach 3-inch diameter suction hose for large volume sampling.
3) Wet lab and dry lab. |
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Summary of other requirements and comments: |
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Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
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Request ID: |
1010095 |
Created By: |
John D. Kessler |
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Date Last Modified: |
9/16/2020 1:09:00 PM |
Date Submitted: |
8/14/2018 12:28:00 PM |
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Year: |
2022
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Ship/Facility: |
Hugh R. Sharp
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Optimum Start Date:
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6/22/2022 |
Dates to Avoid: |
This cruise is preferred to occur during summer months due to the teaching commitments of the participating scientists as well as optimum weather conditions for the science being conducted. |
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Earliest Start Date: |
6/8/2022 |
Multi-Ship Op: |
No |
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Latest Start Date: |
7/13/2022 |
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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30 |
1 |
1 |
0 |
32 |
Repeating Cruise?
(within same year) |
No |
Interval: |
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# of Cruises: |
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Description of Repeating cruise requirements: |
Not a repeating cruise. |
Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations: |
This cruise will measure methane distributions and fluxes in the coastal waters from the mid-US Atlantic Margin and into the Gulf of Mexico. The ship is the appropriate size for our operations and its located in the appropriate geographical area. |
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Short Description of Op Area
for use in schedules: |
coastal US |
| Description of Op Area: |
We would like to survey the coastal waters, departing from Lewes, DE and transiting to the northern Gulf of Mexico. We would like to survey the Louisiana shelf before disembarking in or near Gulfport, MS. The water depths we would like to survey are from approximately 300 m and shallower. |
| Op Area Size/Dia.: |
1800 |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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35.791667° N
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75.158333° W
map
35° 47.50002' N
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75° 9.49998' W
map
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Ending
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30.35° N
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89.091667° W
map
30° 21' N
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89° 5.50002' W
map
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Show Degrees Minutes |
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Foreign Clearance Required? |
No |
Coastal States:
US EEZ |
 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.) |
No foreign clearance required. |
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Requested Start Port |
Intermediate Port(s) |
Requested End Port |
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Lewes, DE, USA |
None |
Gulfport, MS, USA |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
Our science involves measuring methane distributions and fluxes along the US Atlantic Margin and Gulf of Mexico. We selected these ports for this scientific reason as well as based on the home port for the Sharp and previous experience sailing in and out of Gulfport, MS. However, we are slightly flexible and are will consider adjacent ports if that would be preferred for the Sharp. We are happy to discuss this detail with the director of marine operations for the Sharp. |
Important Info on Working in Foreign Ports
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Chief Scientist: |
John D. Kessler, U of R |
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# in Science Party |
11 |
# of different science teams |
2 |
# 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 |
This cruise will be collecting continuous surface water data and samples. The PI will provide a system to measure the dissolved methane concentration in seawater and a continuous surface water pump.
While this operation is continuous while underway, we will also periodically collect water column samples for natural methane isotopes. These samples are collected by pumping large volumes of water up from specific depths. The PI will supply their own pump and suction hose, and will work with the ship's captain and tech to make sure this operation is conducted safely and effectively.
While both operations have been developed in the PIs lab, they have been used successfully on cruises in the Artic, Great Lakes, and U.S. Atlantic Margin. |
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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. |
Most sampling and analysis equipment will be supplied by the PI. However, we will need to mount a pump over the side of the ship throughout this cruise. (On a previous cruise, we mounted this pump in the retractable keel.) We will also have to periodically attach 3-inch diameter suction hose to a winch wire and lower to specific depths to collect large volume samples. Both of these operations were conducted successfully on this ship during a cruise in 2017. We are happy to discuss these details with the director of marine operations for the Sharp.
We are requesting multibeam system here however this is not absolutely critical. If a system is already installed on the Sharp that can relatively easily detect seafloor bubble emissions between a water column depth range of about 50-300m, we would like to collect that data during our cruise. However, if such a system does not exist on the Sharp, our expedition will not be critically hindered by not collecting this data.
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
We would like to have one lab van on board. (I have listed both a general purpose lab van and a wet lab van, but we only need one of these.) The science to be conducted in the lab van involves pumping seawater through an analytical system mounted in this lab van. Spillage of seawater should be relatively minimal, but won't be nothing. Thus, we will use whichever lab van (general purpose or web lab van) you think is most appropriate. I'm happy to discuss this detail with the director of marine operations for the Sharp. |
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