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Atm N deposition
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2014
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Hugh R. Sharp
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Project Title: |
Collaborative Research: Impacts of atmospheric nitrogen deposition on the biogeochemistry of oligotrophic coastal waters |
Project Status: |
Submitted |
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Principal Investigator: |
Margaret R. Mulholland, ODU_OEAS |
Project Institution: |
ODU_OEAS |
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Project ID: |
103487 |
Version #: |
3 |
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Date Submitted: |
7/31/2012 3:33:00 PM |
Created By: |
Margaret R. Mulholland |
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Date Last Modified: |
3/28/2013 1:23:00 PM |
URI Serial #: |
None |
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Funding Agencies: |
NSF/OCE/CO - 1260574 - Funded |
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Summary of Field Work: |
This project is a collaborative project involving scientists from Pennsylvannia State
University (PI: Raymond Najjar), the Virginia Institute of Marine Science, and Old Dominion University. The goal is to determine the impacts of wet deposition of nutrients on coastal biogeochemistry, particularly primary productivity. As such, we propose to measure wet and dry deposition of nutrients in mid-Atlantic coastal waters. To do this, we will deploy wet and dry sampling equipment on the bow of the ship as we steam. Dry deposition will be measured during periods when there is no rainfall. To measure wet deposition, we will track precipitation using radar and then cruise into the area of precipitation, collect rainwater for shipboard incubation experiments and track the water mass that has been impacted by the precipitation. As such, we will not have a defined cruise track per se prior to deploying. We will track storms coming over land between DE and NC and wll limit our storm tracking to this region. This region is within easy reach of the RV Hugh Sharp and is an area where the PIs have been working intensively. It is also an area that receives rainfall during regular summer storm events. We propose to conduct our cruises during July and August when these storm systems are regular features in the region.
We will mount samplers to measure wet and dry nutrient deposition and rain gauges. We will measure the spacial extent of the impact of precipitation using underway sampling systems. In addition, we will measure water column hydrography and nutrient biogeochemistry by deploying a rosette mounted CTD several times per day to measure water column structure and to collect water for deckboard incubations. We will match satellite and field observations.
The science party will include PIs, graduate students, and undergraduate students. |
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Summary of Facility Requirements: |
We require a ship capable of working withing 200 miles of the coast for a period
of up to 24 days (port visit is possible for fueling). We require underway
thermosalinigraph to map surface temperature and salinity, and equipment to
measure air temperature, humidity, wind speed and direction, downwelling solar
radation, and downwelling longwave radiation.
In addition we will need a rosette equipped with CTD and Niskin bottles for
water sampling at depth. We will be conducting deckboard incubations and so
require seawater on deck. We will plumb deck incubators (which we can provide
if the ship does not have them) with running seawater to keep incubations at or
near ambient water temperatures.
We will need access to places near the bow, forward of the ship's stack to
mount air sampling equipment.
We will require 10-14 berths for the science party that will include PIs, graduate
students and undergraduate students. |
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Summary of other requirements and comments: |
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Type of Request: |
Collaborative Ship Use |
Request Status: |
Submitted |
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Request ID: |
1005515 |
Created By: |
Margaret R. Mulholland |
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Date Last Modified: |
3/28/2013 1:23:00 PM |
Date Submitted: |
7/31/2012 3:33:00 PM |
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Year: |
2014
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Ship/Facility: |
Hugh R. Sharp
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Optimum Start Date:
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7/20/2014 |
Dates to Avoid: |
We require the ship during summer months when storm activity is high. We prefer July and August because we will include students in the scientific party. |
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Earliest Start Date: |
7/9/2012 |
Multi-Ship Op: |
No |
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Latest Start Date: |
8/1/2012 |
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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22 |
1 |
1 |
0 |
24 |
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: |
mid-Atlantic |
| Description of Op Area: |
Mid-Atlantic coastal waters (within 200 mi) between DE Bay and SC coastal waters |
| Op Area Size/Dia.: |
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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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Lewes, DE, USA |
Norfolk, VA, USA |
None |
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: |
Margaret R. Mulholland, ODU_OEAS |
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# in Science Party |
14 |
# of different science teams |
3 |
# 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 |
The science party will include PIs, graduate and undergraduate students. We will require a CTD technician to assist in deploying and recovering CTD/Rosette and acquiring those data. |
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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. |
We will bring a towed water sampler or mount a pipe to pump surface water samples to
the deck.
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
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