Dataset Available

Ship navigation data collected aboard the R/V F.G. Walton Smith cruise WS17121 in the Gulf of Mexico from 2017-04-30 to 2017-05-09

Authors: Shay, Lynn; Jaimes, Benjamin; Brewster, Jodi
Published On: Oct 23 2018 21:39 UTC
DOI: https://doi.org/10.7266/N7DB80FF
UDI: R5.x275.000:0008
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Project Information

Funded By:
Gulf of Mexico Research Initiative

Funding Cycle:
RFP-V

Research Group:
Three-Dimensional Gulf Circulation and Biogeochemical Processes Unveiled by State-of-the-Art Profiling Float Technology and Data Assimilative Ocean Models

Point of Contact

Lynn K. (Nick) Shay
University of Miami / Rosenstiel School of Marine and Atmospheric Science
nshay@rsmas.miami.edu

Data Collection Period
2017-04-30
to
2017-05-09
Theme keywords

navigation, GPS, gyrocompass, POSMV, EM-APEX floats

ISO 19115-2 Metadata
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Abstract:

This dataset includes the underway ship navigation data collected aboard the R/V F.G. Walton Smith cruise WS17121 in the Gulf of Mexico from 2017-04-30 to 2017-05-09. Underway and CTD data were collected for 9 days in the northeastern Gulf of Mexico while deploying EM-APEX floats that were instrumented to measure physical and biogeochemical parameters. The expedition started in Gulfport, MS, spent 9 days moving along two parallel deployment lines (including a weather delay), before heading to port in Miami, FL. Included in this dataset are the ship navigation from the R/V Walton Smith cruise from multiple GPS strings included in the navigation data files. Three GPS systems were on board. Therefore, three GPS datasets are included. The most accurate is the POSMV as it uses various sources of input and calculates the position to an accuracy of .5/.6 meters. Gyrocompass data are also included. This cruise is part of the Rolling Deck to Repository (DOI:10.7284/907283) program.

Suggested Citation:

Shay, Lynn; Jaimes, Benjamin; Brewster, Jodi. 2018. Ship navigation data collected aboard the R/V F.G. Walton Smith cruise WS17121 in the Gulf of Mexico from 2017-04-30 to 2017-05-09. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7DB80FF

Purpose:

GPS and gyrocompass data to measure position and speed during the 9-days expedition to deploy EM-APEX floats in the Gulf of Mexico.

Data Parameters and Units:

Date (MM/DD/YY), Time (HH:MM:SS), Latitude (degrees/minutes), Longitude (degrees/minutes), Position, Altitude, Satellites, Status, Fix Quality, Speed over Ground, Course Over Ground, Geoid Height, True heading, Raye of turn, Horizontal Dilution, Mnemonic, Checksum, GGA String, RMC String, VTG String, ROT string, HDT String. The dataset includes a documentation folder with cruise related information.

Instruments:

Bridge Global Positioning System (GPS) - Manufacturer: Raytheon Model Number: RayMarine 120 Technician Global Positioning System (GPS) - Manufacturer: Raytheon Model Number: RayMarine 300 Gyrocompass - Manufacturer: Brown Position and Orientation Systems for Marine Vessels (POSMV) - Manufacturer: Applanix V3

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