Dataset: Cruise Track

Name: Cruise track from the R/V Atlantis AT15-53 cruise in the Santa Monica Basin during 2009 (Viruses in Methanotrophic Marine Ecosystems project)
Published: 2016-01-19
Keywords: oceans

Cite This Dataset

Spatial Extent: N:37.834793 E:-117.815265 S:32.856813 W:-122.729992

Project:

Dimensions: The Role of Viruses in Structuring Biodiversity in Methanotrophic Marine Ecosystems (Viruses in Methanotrophic Marine Ecosystems)

Program:

Dimensions of Biodiversity (Dimensions of Biodiversity)

Principal Investigator:

David L. Valentine (University of California-Santa Barbara, UCSB)

Contact:

David L. Valentine (University of California-Santa Barbara, UCSB)

BCO-DMO Data Manager:

Stephen R. Gegg (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

19 January 2016

Version Date:

2016-01-19

Current State:

Final no updates expected

Cruise track from the R/V Atlantis AT15-53 cruise in the Santa Monica Basin during 2009 (Viruses in Methanotrophic Marine Ecosystems project)

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Description

AT15-53 Cruise track generated from R2R Archive file
Cruise Id, Date/Time UTC, Lat, Lon, SOG, COG
1 minute fixes

R2R File Creation Date: 2012-04-05T19:43:01Z

Methods & Sampling

Generated from R2R archive file by BCO-DMO staff

Data Processing Description

Generated from R2R archive file by BCO-DMO staff

Data Files

File
CruiseTrack.csv (Comma Separated Values (.csv), 1.39 MB) MD5:97de6f890f77d3d0e9ed1d893f37b1d3 Primary data file for dataset ID 632992

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1046144

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
AT15-53	SEEPS09	2009-09-13	R/V Atlantis	David L. Valentine (Chief Scientist)	data info

Instruments

Global Positioning System Receiver

Supplied Name: GPS

Supplied Description:

Navigation Equipment

HEALY is outfitted with Sperry Marine's Voyage Management System (VMS). This system utilizes multiple heading, position, environmental, and navigation inputs to steer the ship along a desired course. Currently, HEALY has the following GPS receivers: GPS, DGPS, P-Code GPS, and 3-D GPS. Heading inputs include two gyrocompasses and the 3-D GPS heading information.

The ship is also outfitted with an electronic magnetic compass. A Dynamic Positioning System (DPS) is available for station keeping and slow speed transits (towing, dredging). HEALY's DPS attempts to do with props and a bowthruster what smaller ships do with fore and aft thrusters, so it has limitations. It was designed and built by ALSTOM and integrates the use of propellers, rudders, and the bow thruster to accomplish ship movement. DPS Limitations: At best heading in openwater, in a 20 kt wind, seas with a significant wave height of 4.0 feet and a 1 knot currents, HEALY shall be capable of maintaining a position of +/- 150 feet or 3% of water depth (whichever is greater) from a point or trackline and maintain a heading of +/- 5 degrees. The seas and wind shall be from the same direction, with the current from less the 45 degrees off the wind.

Antenna Layout Top View PDF

Instrument Type

Generic Name: Global Positioning System Receiver

Acronym: GPS

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/POS03/

Generic 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.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
CruiseId	Official UNOLS cruise id	text	cruiseid
ISO_DateTime_UTC	ISO formatted UTC Date and Time	YYYY-MM-DDTHH:MM:SSZ	ISO_DateTime_UTC
Latitude	Latitude Position (South is negative)	decimal degrees	lat
Longitude	Longitude Position (West is negative)	decimal degrees	lon
SOG	Instantaneous Speed-over-ground	meters/sec	sog
COG	Instantaneous Course-over-ground [deg. clockwise from North]	decimal degrees	cog

Status message

Database

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Dataset: Cruise Track

Navigation Equipment