Abstract:

This dataset contains meteorological and oceanographic data collected by the Central Gulf Ocean Observing System (CenGOOS) buoy in the Gulf of Mexico from 2015-03-30 to 2015-12-31. This buoy was moored south of Horn Island in 20 m of water at 30.0424 ˚N and 88.6473˚W. The buoy collected both meteorological and oceanographic data including air temperature, relative humidity, wind speed and direction, barometric pressure, sea surface temperature and salinity, current speed and direction, current profiles, and significant wave height and period. Other related datasets from the year 2016 and 2017 are available under GRIIDC Unique Dataset Identifiers (UDIS) R4.x260.204:0013 (DOI: 10.7266/n7-ejqc-vk96) and R4.x260.204:0014 (DOI: 10.7266/n7-cp9g-4485) respectively. All datasets are archived by the University of Southern Mississippi (USM). The meteorological and near-sea surface temperature, salinity, and waves data are also archived through the National Data Buoy Center (NDBC; identified as Station 42067).

Suggested Citation:

Stephan Howden, Kevin Martin. 2019. Meteorological and oceanographic data collected by the Central Gulf Ocean Observing System (CenGOOS) buoy in the Gulf of Mexico from 2015-03-30 to 2015-12-31. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/n7-eep5-5k62

Purpose:

To collect meteorological and oceanographic data.

Data Parameters and Units:

Date and Time [Date and time of the measurement in UTC]; latitude [degrees N]; longitude [degrees W], ev1-ev9 [East velocity component of the current in each bin 1-9 (cm/s)]; nv1-nv9 [North velocity component of the current in each bin 1-9 (cm/s)]; vv1-vv9 [Vertical velocity component of the current in each bin 1-9 (cm/s)]; tiltx [X component of the instrument's tilt (degrees)]; tilty [Y component of the instrument's tilt (degrees)]; temp [Water temperature (°C) at the instrument]; compass [Compass heading of the instrument (degrees)]; airtemp [air temperature (°C) at the instrument]; vn [North velocity component of the current (cm/s)]; ve [East velocity component of the current (cm/s)]; w_temp [Water temperature (°C) at the instrument]; sigstr [Signal strength]; comp_dcs [Compass Direction (degrees)]; tx [Tilt x-axis (degrees)]; ty [Tilt y-axis (degrees)]; pingcount [Number of pings contributing to the measurement]; pressure [Barometric pressure (in mBars)]; humidity [Relative humidity]; seatemp [Water temperature (°C) at the instrument]; conductivity [Water conductivity at the instrument (S/m)]; pressure [Water pressure at the instrument (dBar)]; salinity [Salinity calculated by the instrument (PSU)]; compass_heading [Compass heading of the instrument (degrees)]; compass_magnitude; wind_heading [Raw heading (degrees)]; wind_magnitude [Speed of the wind (m/s)]; gust_heading [Raw heading (degrees)]; gust_magnitude [Speed of the gusts (m/s)]; corrected_wind_heading [Heading (Degrees true)]; corrected_gust_heading [Heading (Degrees true)]; rawstart [Start time of the measurement in UTC]; rawend [Ending time of the measurement in UTC]; sig_height [Significant wave height (m)]; mean_period [Average wave period (s)]; dom_period [Dominant wave period (s)]. Note: All-time units are UTC and the measurements were taken from an instrument mounted on a 3m discus buoy moored at 30°02.5295'N, 88°38.8457'W.

Methods:

Acoustic doppler current profile (ADCP) data: The instrument (RDI workhorse) was mounted on a "yoke" approximately 2m below the buoy waterline. The measurements are in 9 "bin" depths below sea level at 3.43m, 5.43m, 7.43m, 9.43m, 11.43m, 13.43m, 15.43m, 17.43m, 19.43m (center of 2m bin). Air temperature data: The instrument (Gill Metpak) was mounted on a mast on the buoy ~5m above the sea surface. Current data as measured by a Doppler current sensor (DCS): The instrument (Aanderra DCS) was mounted on a "yoke" approximately 2m below the buoy waterline. Barometric pressure data: The instrument (Gill Metpak) was mounted on a mast on the buoy ~3m above the sea surface. Relative humidity data: The instrument (Gill Metpak) was mounted on a mast on the buoy ~5m above the sea surface. CTD data: Water temperature, conductivity, pressure and salinity data were measured by a microcat CTD sensor. The instrument (Seabird SBE-37) was mounted on a "yoke" approximately 2m below the buoy waterline. Wind speed data: The instrument (RM Young anemometer) was mounted on a mast on the buoy ~5m above the sea surface. Wave statistics data: The instrument was (Crossbow DMU) was mounted centrally in the buoy.

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