Dataset Available

Gridded density and geopotential height differences across Yucatan Channel, Mexico from moored instruments, 2018-07-28 to 2021-09-21

Authors: Send, Uwe, Julio Candela, Matthias Lankhorst, Gaston Manta, Jeff Sevadjian, and Julio Sheinbaum
Published On: Jan 09 2024 22:32 UTC
DOI: https://doi.org/10.7266/YQWCV66H
UDI: U2.x860.000:0002
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Project Information

Funded By:
National Academies of Sciences Gulf Research Program
Ensenada Center for Scientific Research and Higher Education

Funding Cycle:
Understanding Gulf Ocean Systems Grants 2

Research Group:
Technology and Methods for Yucatan Channel Monitoring

Point of Contact

Matthias Lankhorst
Scripps Institution of Oceanography / University of California
mlankhorst@ucsd.edu

Data Collection Period
2018-07-28
to
2021-09-21
Theme keywords

ocean currents, ocean density, dynamic height, steric height, geopotential height anomaly, moorings

ISO 19115-2 Metadata
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Abstract:

From 2018-07-28 until 2021-09-21, four moorings carrying temperature and salinity instruments were deployed in Yucatan Channel, Mexico. From these, density and geopotential height anomalies were calculated. Here, the across-channel differences of density and geopotential height are reported, which allow calculation of geostrophic currents along the channel. The instruments were deployed at degrees decimal minutes: 21° 33.52’ N, 86° 27.06’ W (decimal degrees: 21.55866 N, -86.45100 W) in about 120 m of water; degrees decimal minutes: 21° 34.81’ N, 86° 20.93’ W (decimal degrees 21.580167 N, -86.348833 W) in about 500 m of water; degrees decimal minutes: 21° 36.98’ N, 86° 13.98’ W (decimal degrees: 21.616333 N, -86.23300 W) in about 1200 m of water; and degrees decimal minutes: 21° 47.07’ N, 85° 11.01’ W (decimal degrees: 21.78450 N, 85.18350 W) in about 1880 m of water. They were deployed and recovered by the R/V Justo Sierra on cruises CANEK-42 and CANEK-48, respectively. Associated data are available in datasets U2.x860.000:0001 (bottom pressure and acoustic vertical round trip travel time differences; doi: 10.7266/VRVK55SR), U2.x860.000:0003 (gridded vertical sections of zonal and meridional velocity components; doi: 10.7266/AK8HHNYX), and U2.x860.000:0004 (ocean volume transport; doi: 10.7266/GBCNGJQF).

Suggested Citation:

Send, Uwe, Julio Candela, Matthias Lankhorst, Gaston Manta, Jeff Sevadjian, and Julio Sheinbaum. 2024. Gridded density and geopotential height differences across Yucatan Channel, Mexico from moored instruments, 2018-07-28 to 2021-09-21. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/YQWCV66H

Purpose:

Part of an array that monitors throughflow through Yucatan Channel, Mexico.

Data Parameters and Units:

Density difference [kg/m^3]; Geopotential height difference [m^2/s^2]; Pressure [dbar]; Time [days since 2000-01-01].

Methods:

Mooring-based observations. Instrument data converted to geophysical values. Adjustments to calibrations based on reference data. Quality control applied, reviewed by subject-matter expert. Gridded in depth (pressure) and time. Target properties derived from underlying temperature and salinity data.

Instruments:

Seabird SBE37 CTDs

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