N: 38.1 S: 36.3 E: -122.9 W: -125.4
Description
This dataset contains shipboard conductivity, temperature, and depth (CTD) measurements taken during the Sub-Mesoscale Ocean Dynamics Experiment (S-MODE) field campaign. The experiment was conducted approximately 300 km offshore of San Francisco, during a pilot campaign that spanned two weeks in October 2021, and two intensive operating periods in Fall 2022 and Spring 2023. S-MODE aims to understand how ocean dynamics acting on short spatial scales influence the vertical exchange of physical and biological variables in the ocean. The shipboard CTD rosette is cast from the R/V Oceanus where it records ocean temperature, conductivity, and pressure as it descends to depth and then returns to the surface. IOP1 and IOP2 measurements also contain biological data. Data are available in netCDF format.
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Variables
The table below lists the variables contained within a single granule for this dataset. Variables often contain observed or derived geophysical measurements collected from a variety of sources, including remote sensing instruments on satellite and airborne platforms, field campaigns, in situ measurements, and model outputs. The terms variable, parameter, scientific data set, layer, and band have been used across NASA’s Earth science disciplines; however, variable is the designated nomenclature in NASA’s Common Metadata Repository (CMR). Variable metadata attributes such as Name, Description, Units, Data Type, Fill Value, Valid Range, and Scale Factor allow users to efficiently process and analyze the data. The full range of attributes may not be applicable to all variables. Additional information on variable attributes is typically available in the data, user guide, and/or other product documentation.
For questions on a specific variable, please use the Earthdata Forum.
| Name Sort descending | Description | Units | Data Type | Fill Value | Valid Range | Scale Factor | Offset |
|---|---|---|---|---|---|---|---|
| absolute_pressure_RBR | RBR Absolute Pressure | dbar | double | -9999 | 10 to 1000 | 1 | N/A |
| absolute_salinity_RBR | RBR Absolute Salinity | g kg-1 | double | -9999 | 0 to 40 | 1 | N/A |
| beam_attenuation_650nm_RBR | RBR beam attenuation at 650 nm | m-1 | double | -9999 | 0 to 5 | 1 | N/A |
| calibrated_backscatter_700nm_RBR | RBR backscatter at 700 nm with manufacturer’s calibrations applied, and temperature, salinity, and volume scattering function corrections applied | m-1 sr-1 | double | -9999 | 0 to 1 | 1 | N/A |
| chlorophyll_RBR | RBR calibrated chlorophyll, cross calibrated with ship-based chlorophyll-a proxy | ug L-1 | double | -9999 | 0 to 0.1 | 1 | N/A |
| colored_dissolved_organic_matter_RBR | RBR cdom fluorescence, raw | 1 | double | -9999 | 0 to 200 | 1 | N/A |
| conductivity | Conductivity | mS cm-1 | double | -9999 | 0 to 50 | 1 | N/A |
| conductivity_RBR | RBR Conductivity | mS cm-1 | double | -9999 | 0 to 50 | 1 | N/A |
| conservative_temperature_RBR | RBR Conservative Water Temperature | degrees_C | double | -9999 | -2 to 30 | 1 | N/A |
| depth | Depth of Measurement | m | double | N/A | N/A | 1 | N/A |
| depth_RBR | Depth of RBR Measurement | m | double | N/A | N/A | 1 | N/A |
| INST_RBR | RBR Maestro - battery powered CTD that contains bio-optics | N/A | double | N/A | N/A | 1 | N/A |
| latitude | Latitude of Measurement | degrees_north | double | N/A | N/A | 1 | N/A |
| longitude | Longitude of Measurement | degrees_east | double | N/A | N/A | 1 | N/A |
| oxygen | Oxygen Molar Concentration | umol kg-1 | double | -9999 | 0 to 150 | 1 | N/A |
| oxygen_RBR | RBR Percent dissolved oxygen | 1 | double | -9999 | 0 to 100 | 1 | N/A |
| oxygen_saturation | Oxygen Saturation | percent | double | -9999 | 0 to 1.5 | 1 | N/A |
| particulate_organic_carbon_RBR | RBR particulate organic carbon, cross calibrated with ship based POC proxy | umol L-1 | double | -9999 | 0 to 50 | 1 | N/A |
| potential_density_RBR | RBR Potential Density | kg m-3 | double | -9999 | 990 to 1030 | 1 | N/A |
| potential_temperature | Water Potential Temperature | degrees_C | double | -9999 | -2 to 30 | 1 | N/A |
| pressure | Sea Water Pressure | dbar | double | N/A | 0 to 600 | 1 | N/A |
| quality_flag | Quality Flag | N/A | double | -9999 | N/A | 1 | N/A |
| raw_backscatter_700nm_RBR | RBR raw backscatter at 700 nm | 1 | double | -9999 | 0 to 10000 | 1 | N/A |
| raw_chlorophyll_fluorescence_RBR | RBR raw chlorophyll fluorescence | 1 | double | -9999 | 0 to 100 | 1 | N/A |
| salinity | Salinity | 1 | double | -9999 | 2 to 42 | 1 | N/A |
| salinity_RBR | RBR practical salinity from conductivity | 1 | double | -9999 | 2 to 42 | 1 | N/A |
| sea_pressure_RBR | RBR Sea Pressure | dbar | double | -9999 | 0 to 990 | 1 | N/A |
| temperature | Water Temperature | degrees_C | double | -9999 | -2 to 30 | 1 | N/A |
| temperature_RBR | RBR in situ temperature | degrees_C | double | -9999 | -2 to 30 | 1 | N/A |
| time | Time of Measurement | days since 1950-01-01 | double | N/A | N/A | 1 | N/A |
| transmittance_RBR | RBR percent raw transmittance | 1 | double | -9999 | 0 to 100 | 1 | N/A |