Cruise track position data from R/V Melville cruise MV1310 in the North Pacific Gulf of Alaska; 48N to 59N and 129W to 153W in 2013 (North Pacific RDOC project)

Website: https://www.bco-dmo.org/dataset/526942
Version: 29 August 2014
Version Date: 2014-08-29

Project
» Characterizing a refractory DOC sink in the deep northern North Pacific (North Pacific RDOC)
ContributorsAffiliationRole
Hansell, DennisUniversity of Miami Rosenstiel School of Marine and Atmospheric Science (UM-RSMAS)Principal Investigator
Gegg, Stephen R.Woods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager


Dataset Description

Cruise tracks generated from R2R Archive file
Cruise Id, Date/Time UTC, Lat, Lon, SOG, COG
1 minute fixes


Acquisition Description

Generated from R2R archive file by BCO-DMO staff


Processing Description

Generated from R2R archive file by BCO-DMO staff


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Parameters

ParameterDescriptionUnits
CruiseIdOfficial UNOLS cruise id text
ISO_DateTime_UTCISO formatted UTC Date and Time YYYY-MM-DDTHH:MM:SSZ
LatitudeLatitude Position (South is negative) decimal degrees
LongitudeLongitude Position (West is negative) decimal degrees
SOGInstantaneous Speed-over-ground meters/sec
COGInstantaneous Course-over-ground [deg. clockwise from North] decimal degrees


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Instruments

Dataset-specific Instrument Name
GPS
Generic Instrument Name
Global Positioning System Receiver
Generic Instrument Description
The Global Positioning System (GPS) is a U.S. space-based radionavigation system that provides reliable positioning, navigation, and timing services to civilian users on a continuous worldwide basis. The U.S. Air Force develops, maintains, and operates the space and control segments of the NAVSTAR GPS transmitter system. Ships use a variety of receivers (e.g. Trimble and Ashtech) to interpret the GPS signal and determine accurate latitude and longitude.


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Deployments

MV1310

Website
Platform
R/V Melville
Report
Start Date
2013-08-04
End Date
2013-08-23
Description
Original data are available from the NSF R2R data catalog


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Project Information

Characterizing a refractory DOC sink in the deep northern North Pacific (North Pacific RDOC)


Coverage: North Pacific, Gulf of Alaska: 48ºN to 59ºN and 129ºW to 153ºW


Extracted from the NSF award abstract:

Refractory dissolved organic carbon (RDOC) in the ocean has long been recognized as highly resistant to removal. It has a mean lifetime in the ocean of thousands of years, so it is generally thought of as a recalcitrant pool that is transported mostly conservatively with the thermohaline circulation. But unlike RDOC in the present-day ocean, this vast reservoir has been implicated by paleoceanographic research as a relatively rapid-turnover carbon source/sink involved in past climate changes. Accordingly, the RDOC reservoir in ancient oceans must at times have been much larger than today, and that large reservoir must have been rapidly mobilized to release its carbon to the atmosphere. There is a clear need to understand how RDOC source and sink processes operate in the modern ocean in order to understand its potential role in past or future oceans.

In this project, a researcher at the Rosenstiel School of Marine and Atmospheric Science of the University of Miami hopes to fill knowledge gaps in the RDOC-climate connection. Inasmuch as mapping of its global distribution was accomplished only within the past few years, few solid facts about processes controlling the RDOC pool have been established. One particularly important RDOC sink is in the northern North Pacific. The PI believes that RDOC carried in bottom waters from the Southern Ocean to the far north is conserved, but once in the vicinity of Pacific Deep Water formation there is a rather abrupt loss of carbon. His immediate goal in this project is to characterize the RDOC sink in the North Pacific, an objective that is one part of the larger goal of understanding the role of ocean RDOC in global climate.



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Funding

Funding SourceAward
NSF Division of Ocean Sciences (NSF OCE)

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