Dataset Available

Bottom pressure and temperature collected in the Gulf of Mexico, 2019-06-14 - 2021-05-19

Authors: Donohue, Kathleen, Randolph R. Watts, Maureen Kennelly

Published On: Mar 30 2022 15:53 UTC

DOI: https://doi.org/10.7266/BZ9B3C54

UDI: U1.x852.000:0004

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No. of Downloads: 1

No. of Files: 24

File Size: 17.07 MB

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Project Information

Funded By:
National Academies of Sciences Gulf Research Program

Funding Cycle:
Understanding Gulf Ocean Systems Grants 1

Research Group:
Pressure and Current Meters

Point of Contact

Kathleen Donohue
University of Rhode Island
kdonohue@uri.edu

Data Collection Period

2019-06-14 to 2021-05-19

Theme keywords

hydrostatic pressure, water temperature, instrumental drift, LC, IES, inverted echo sounders, Loop Current, Loop Current separation

ISO 19115-2 Metadata

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Abstract:

This dataset contains hourly bottom pressures and temperatures from an array of 24 current and pressure-recording inverted echo sounders moored in the central Gulf of Mexico between 2019-06-14 and 2021-05-19. These data were acquired to increase understanding of the Loop Current (LC) separation process and to inform LC forecasting efforts. These data are the highest quality version after the least amount of processing. The data are in NetCDF format.

Suggested Citation:

Donohue, Kathleen, Randolph R. Watts, Maureen Kennelly. 2022. Bottom pressure and temperature collected in the Gulf of Mexico, 2019-06-14 - 2021-05-19. Distributed by: Gulf of Mexico Research Initiative Information and Data Cooperative (GRIIDC), Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/BZ9B3C54

Purpose:

Bottom pressure and temperature data from moored current and pressure recording inverted echo sounders were acquired to increase understanding of the Loop Current (LC) separation process and to inform LC forecasting efforts.

Data Parameters and Units:

Bottom pressure (decibars), latitude (degrees north), longitude (degrees east), instrumental pressure drift (decibars), temperature (degrees Celsius), hourly dedrifted seafloor pressure (decibars), time for pressure (days since 2019-01-01 00:00:00 UTC), Paroscientific sensor temperature at seafloor (degrees Celsius), and time for Paroscientific sensor pressure (days since 2019-01-01 00:00:00 UTC).

Methods:

Bottom pressure and temperature data were acquired with URI and Sonardyne current and pressure recording inverted echo sounders (IES). Data were processed with URI's IES processing package version 4. Hourly averages were calculated from six measurements taken at 10 minute intervals. An exponential-linear curve was fitted to determine instrumental drift. The drift curve was subtracted from the measurements.

Instruments:

URI and Sonardyne current and pressure recording inverted echo sounders (IES). The Paroscientific pressure sensor is housed inside the IES glass sphere. The IES is moored in a rigid anchor stand.