The water depth and temperature data were collected in Gulf of Mexico as part of Louisiana-Texas (LATEX part C) Gulf of Mexico Eddy Circulation Study from aircraft between October 15, 1994 and November 15, 1994. The originator's bathythermograph aerial (AXBT) and Airborne Expendable Current Profiler (AXCP) data were submitted by Dr. Thomas Berger, Science Applications, Inc. Raleigh NC. The study was supported by grant no MMS 14-35-0001-30633. LATEX is a three-part, $16.2 million federal initiative funded by the U.S. Minerals Management Service (MMS) of the Department of the Interior. The study was conducted to aid MMS in reducing risks associated with oil and gas operations on the continental shelf along the Texas and Louisiana coasts from the mouth of the Mississippi River to the Rio Grande. Begun in September 1991, it was the largest physical oceanography program ever undertaken in the Gulf. The program consists of three major parts: LATEX A, B, and C, conducted by the Texas A&M University System (TAMUS), Louisiana State University (LSU), and Science Applications International Corp. (SAIC), respectively. LATEX C was carried out by researchers at SAIC and the University of Colorado. Loop Current eddies, slope eddies, and squirts and jets within the Gulf of Mexico were located and tracked by air-deployed temperature profiling instruments and drifting buoys. Using these data, scientists assessed the impact of these Gulf-wide, circulation features on shelf circulation and identified the processes that interact with the shelf.

The accession contains several data sets collected during cruise P921 of the R/V Pelican as part of the Mississippi River Plume Hydrographic Study. Data submitted to NODC in delimited ASCII. One data set contains CTD (Depth, Conductivity, and Temperature data); file(s) also include salinity, dissolved oxygen, backscatter, transmissometer (turbidity), and pressure. This data does not include header information and was not able to be processed in a standard NODC format. Another data set contains Oxygen and Hypoxia data. Data was exported for NODC in delimited ASCII and is in spread sheet format. Third data set contains ADCP (Acoustic Doppler Current Profiler) data collected as part of LATEX (Louisiana-Texas) project. Data was exported for NODC in delimited ASCII. Fourth data set contains Chlorophyll (CHL), Phaeophytin, Salinity, Temperature, and Secchi Disc data. Data was exported for NODC in delimited ASCII and is in spread sheet format. Fifth data set contains Zooplankton data. All the data in this accession is considered INTERIM data; the originator's documentation and file record do not fully correlate with the actual number of files and data types submitted. Final data report was expected to be available by 08/31/93. Principal Investigator: Minerals Management Service/ Louisiana State University Institute: TX-LA Shelf Physical Oceanography Project/ Louisiana State University.

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Current meter data from the South West Gulf of Mexico (Ixtoc Area) was submitted by the Centro de Ciencias del Mar y Limnologia, Unam, Mexico as part of the CILAT-I and CILAT-II operations, and the CIBAC-II cruise. The data were collected using ships and buoys from February 1, 1977 to September 30, 1978. The data were submitted by Dr. A. Laguarda Figueras. The documentation includes a format description and a map showing the results of a free drifting drogue experiment.

Oceanographic data were collected aboard NOAA Ship PISCES in the Gulf of Mexico from 2010-07-26 to 2010-07-29 in response to the Deepwater Horizon Oil Spill event on April 20, 2010, by the Subsurface Monitoring Unit (SMU), which consisted of multiple government and corporate agencies. More specific information about each dataset is located in their individual metadata records. This dataset contains products created for use in real time analysis and decision support. These products may include charts, graphs, maps, plots, and GIS formatted data files. Cruise level information consisting of data management documents, cruise reports and plans, videos and pictures, and other miscellaneous documentation were gathered by the data managers.

Conductivity Temperature and Depth (CTD) measurements were collected aboard NOAA Ship Pisces, Cruise 05, to determine physical oceanographic parameters of the water column, and in some cases used to help guide sample collection as part of the Deepwater Horizon oil spill sampling effort. Temperature, conductivity/salinity, depth, dissolved oxygen, and fluorometry data were collected onboard NOAA Ship Pisces, Cruise 05. The final product is a series of NetCDF files containing every CTD cast that has been processed and quality checked.

Conductivity Temperature and Depth (CTD) measurements were collected aboard NOAA Ship Pisces to determine physical oceanographic parameters of the water column, and in some cases used to help guide sample collection as part of the Deepwater Horizon oil spill sampling effort. Temperature, conductivity/salinity, depth, and dissolved oxygen data were collected onboard NOAA Ship Pisces, Cruise 08. The final product is a series of NetCDF files containing every CTD cast that has been processed and quality checked.

Conductivity Temperature and Depth (CTD) measurements were collected aboard NOAA Ship Pisces to determine physical oceanographic parameters of the water column, and in some cases used to help guide sample collection as part of the Deepwater Horizon oil spill sampling effort. **Temperature, conductivity/salinity, depth, dissolved oxygen, and fluorometry data** were collected onboard NOAA Ship Pisces. The final product is a series of NetCDF files containing every CTD cast that has been processed and quality checked.

Current components, physical, and other data were collected by moored current meters and CTD casts from the J. W. POWELL and other platforms from the Gulf of Mexico from 17 March 1993 to 28 May 1993. Data were collected by Texas A&M University (TAMU) as part of the Texas-Louisiana Shelf Circulation and Transport Processes Study (LATEX PART A). Data has been processed by NODC to the standard NODC F015-Current Meter Data (Components) and the F022-CTD High Resolutions formats. This F015 format is used for time series measurements of ocean currents. These data are obtained from current meter moorings and represent Eulerian method of current measurement, i.e., the meters are deployed at a fixed point and measure flow past a sensor. Position, bottom depth, sensor depth, and meter characteristics are reported for each station. The data record comprises values of east-west (u) and north-south (v) current vector components at specified date and time. Current direction is defined as the direction toward which the water is flowing with positive directions east and north and negative directions west and south. Data values may be subject to averaging or filtering and are typically reported at 10-15 minute time intervals. Water temperature, pressure, and conductivity or salinity may also be reported. A text record is available for optional comments. The F022 format contains high-resolution data collected using CTD (conductivity-temperature-depth) and STD (salinity-temperature-depth) instruments. As they are lowered and raised in the oceans, these electronic devices provide nearly continuous profiles of temperature, salinity, and other parameters. Data values may be subject to averaging or filtering or obtained by interpolation and may be reported at depth intervals as fine as 1m. Cruise and instrument information, position, date, time and sampling interval are reported for each station. Environmental data at the time of the cast (meteorological and sea surface conditions) may also be reported. The data record comprises values of temperature, salinity or conductivity, density (computed sigma-t), and possibly dissolved oxygen or transmissivity at specified depth or pressure levels. Data may be reported at either equally or unequally spaced depth or pressure intervals. A text record is available for comments.