| Contributors | Affiliation | Role |
|---|---|---|
| Hansell, Dennis | University 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 |
Cruise track generated from MGDS:Nav files
Cruise Id, Date/Time UTC, Lat, Lon, SOG, COG
1 minute fixes
Processed ship-based Navigation Data (version 2) from the Southern Ocean acquired during the Nathaniel B. Palmer expedition NBP1302 (2013)
This data set was acquired with a ship-based Navigation system during Nathaniel B. Palmer expedition NBP1302 conducted in 2013 (Chief Scientist: Dr. Dennis Hansell). These data files are of ASCII format and include Primary Navigation data and were processed after data collection. Data were acquired as part of the project(s): TRACERS.
Processed ship-based Navigation Data (version 2) from the Southern Ocean acquired during the Nathaniel B. Palmer expedition NBP1302 (2013)
This data set was acquired with a ship-based Navigation system during Nathaniel B. Palmer expedition NBP1302 conducted in 2013 (Chief Scientist: Dr. Dennis Hansell). These data files are of ASCII format and include Primary Navigation data and were processed after data collection. Data were acquired as part of the project(s): TRACERS.
Quality 2 - The data have been processed/modified to a level beyond that of basic quality control (e.g. final processed sonar data, photo-mosaics).
BCO-DMO Processing Notes
- Generated from NBP1302 Primary Navigation data (quality version 2) downloaded 4 February 2015 from the Marine GeoScience Data System (MGDS)
- Awk routine generated to reformat original files into BCO-DMO servable file format
- Awk routine: "MGDS_Nav_2_CruiseTrack.awk"
- Parameter names generated to conform to BCO-DMO naming convention found at Choosing Parameter Name
- Date/Time reformatted to ISO DateTime format
- Cruise Id added to data
- SOG and COG values not reported in original files
- SOG and COG (both set to 0.0) added to each data record for compatibility with other BCO-DMO cruise track datasets
| File |
|---|
CruiseTrack.csv (Comma Separated Values (.csv), 4.40 MB) MD5:a07421c95a2361963fe83c7444f57eb0 Primary data file for dataset ID 549090 |
| Parameter | Description | Units |
| CruiseId | Official UNOLS cruise id | text |
| ISO_DateTime_UTC | ISO formatted UTC Date and Time | YYYY-MM-DDTHH:MM:SSZ |
| Latitude | Latitude Position (South is negative) | decimal degrees |
| Longitude | Longitude Position (West is negative) | decimal degrees |
| SOG | Instantaneous Speed-over-ground | meters/sec |
| COG | Instantaneous Course-over-ground [deg. clockwise from North] | decimal degrees |
| Dataset-specific Instrument Name | Trimble GPS - PCODE |
| Generic Instrument Name | Global Positioning System Receiver |
| Dataset-specific Description | This data set was acquired with a ship-based Navigation system |
| 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. |
| Website | |
| Platform | RVIB Nathaniel B. Palmer |
| Report | |
| Start Date | 2013-02-12 |
| End Date | 2013-04-05 |
| Description | Ross Sea, Antarctica (53 days)
RVIB Nathaniel B. Palmer : February-April 2013
McMurdo Station, Antarctica - Punta Arenas, Chile
Project Title: “TRacing the fate of Algal Carbon Export in the Ross Sea” (TRACERS)
Chief Scientist: Dennis Hansell, UM-RSMAS
Project Description: The research focus of this cruise was to investigate the biogeochemistry associated after a phytoplankton bloom at the end of the Antarctic Austral Summer. I helped analyze and coordinate analyses of nutrients (silicic acid, phosphate, and nitrate) and collect samples for dissolved organic carbon (DOC).
Note R2R Link takes user to Marine Geoscience Data System (MGDS):
NBP1302
Nathaniel B. Palmer Systems and Specifications |
Sinking particles are a major element of the biological pump and they are commonly assigned to two fates: mineralization in the water column and accumulation at the seafloor. However, there is another fate of export hidden within the vertical decline of carbon, the transformation of sinking organic matter to fine suspended and/or dissolved organic fractions. This process has been suggested but has rarely been observed or quantified. As a result, it is presumed that the solubilized fraction is largely mineralized over short time scales. However, global ocean surveys of dissolved organic carbon are demonstrating a significant water column accumulation of organic matter under high productivity environments. This proposal will investigate the transformation of organic particles from sinking to solubilized phases of the export flux in the Ross Sea. The Ross Sea experiences high export particle production, low dissolved organic carbon export with overturning circulation, and the area has a predictable succession of production and export events. In addition, the basin is shallow (< 1000 m) so the products the PIs will target are relatively concentrated. To address the proposed hypothesis, the PIs will use both well-established and novel biochemical and optical measures of export production and its fate. The outcomes of this work will help researchers close the carbon budget in the Ross Sea.
| Funding Source | Award |
|---|---|
| NSF Division of Polar Programs (NSF PLR) |