Abstract:

Current meter moorings with internally-recording instruments were deployed on this cruise (G01) in July 2012. (The moorings were recovered and redeployed in July 2013). During this cruise a CTD/Rosette samplers, two shipboard acoustic Doppler currents profilers (75Khz and 300Khz), and an underway continuous sampling system were operated. This data set include CTD data, NISKIN bottle samples (salinity, dissolved oxygen, DOC, and estimated oil equivalents) and documentation. Nutrients and DIC were collected but not analyzed at the time of this submittal. They will be added when ready.

Suggested Citation:

Chapman, Piers, and Steven DiMarco. 2013. Hydrographic and chemical measurements from the GISR: G01 Field Study and Mooring Deployment Cruise off the Mississippi River Delta in July 2012. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7F47M38

Publications:

Spencer, L. J., DiMarco, S. F., Wang, Z., Kuehl, J. J., & Brooks, D. A. (2016). Asymmetric oceanic response to a hurricane: Deep water observations during Hurricane Isaac. Journal of Geophysical Research: Oceans. doi:10.1002/2015jc011560

Diercks, A.-R., Dike, C., Asper, V. L., DiMarco, S. F., Chanton, J. P., & Passow, U. (2018). Scales of seafloor sediment resuspension in the northern Gulf of Mexico. Elem Sci Anth, 6(1), 32. doi:10.1525/elementa.285

Purpose:

Ancillary data collected during the deployment of current meter moorings.

Data Parameters and Units:

GISR_G01_ACTUAL.txt Table of Station, Date (MM/DD/YYYY), Time (hh:mm), SQ# (sequence number), Latitude (decimal degrees), Longitude (decimal degrees), Bottom Depth (meters), netCDF filename (station.nc). netCDF files: 1. profile cf_role (profile id) [0] 2. time time (minutes since 1-Jan-4713 BC 12:00 noon GMT) 3. lon latitude (decimal degrees) 4. lat longitude (decimal degrees) 5. Prz sea water pressure (decibars) 6. T1 sea water temperature (degrees Celsius) 7. T2 sea water temperature measurement 2 (degrees Celsius) 8. Sal salinity (PSU) 9. Cdt1 sea water electrical conductivity (Siemens/meter) 10. Cdt2 sea water electrical conductivity measurement 2 (Siemens/meter) 11. Dst sea water density sigma-theta (kg m^-3) 12. Oxy1 volume fraction of oxygem in sea water (ml L^-1) 13. Oxy2 volume fraction of oxygem in sea water (ml L^-1) 14. Xmi transmission (percentage) 15. Flu fluorescence (mg m^-3) 16. Par PAR Irradiance (Watts m^-2) 17. Rho sea water density (kg m^-3) 18. Sigt sea water potential density (kg m^-3) 19. Des descent rate (m/s) 20. PoT sea water potential temperature (degree Celsius) 21. Dep depth (meters)

Methods:

Lowered CTD with Niskin bottle rosette

Instruments:

Seabird SBE9

Error Analysis:

Data were visually inspected for errors.

Provenance and Historical References:

This is one of three data sets from this cruise. The others hold ADCP and underway measurements.

Individual Files: