S-MODE Shipboard uCTD and EcoCTD Measurements Version 1
(SMODE_L2_SHIPBOARD_UCTD_ECOCTD_V1)| Version | 1 |
| Processing Level | 2 |
| Start/Stop Date | 2021-Aug-01 to 2023-May-31 |
| Short Name | SMODE_L2_SHIPBOARD_UCTD_ECOCTD_V1 |
| Description | This dataset contains shipboard Underway conductivity, temperature, and depth (UCDT) 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 Underway CTD system contains a standard UCDT probe measuring conductivity, temperature, and pressure, as well as an augmented EcoCDT probe that concurrently measures both hydrographic and bio-optical data including conductivity, temperature, pressure, dissolved oxygen concentration, chlorophyll-fluorescence, and particulate backscatter at two different wavelengths. The level 2 data herein combines measurements from both the UCDT and EcoCDT into a single dataset, where for each variable, all profiles are binned onto a 5m vertical grid and merged into a 2-D matrix. Additional computed variables include backscatter baseline signal and backscatter spike signal. Data are available in netCDF format. |
| DOI | 10.5067/SMODE-RVECT |
| Measurement | OCEANS > SALINITY/DENSITY OCEANS > OCEAN OPTICS > FLUORESCENCE OCEANS > OCEAN OPTICS > SCATTERING OCEANS > OCEAN CHEMISTRY > OXYGEN OCEANS > SALINITY/DENSITY > CONDUCTIVITY OCEANS > OCEAN TEMPERATURE > OCEAN TEMPERATURE PROFILES OCEANS > SALINITY/DENSITY > SALINITY OCEANS > SALINITY/DENSITY > OCEAN SALINITY |
| Platform/Sensor | Ships / Platform Name: (Ships) CTD SENSOR Name: Conductivity, Temperature, Depth (CTD) |
| Project | Sub-Mesoscale Ocean Dynamics Experiment (S-MODE) |
| Data Provider | Publisher: S-MODE Project Data Manager, Fred Bingham Creator: S-MODE Team Release Date: 2022-Sep-01 Resource: http://podaac.jpl.nasa.gov/S-MODE |
| Format | netCDF-4 |
| Keyword(s) | S-MODE, Sub-Mesoscale Ocean Dynamics Experiment, earth science, oceans, salinity/density, conductivity, ocean temperature, temperature profiles, salinity, ocean optics, fluorescence, scattering, ocean chemistry, oxygen, ocean salinity, ship, shipboard, in-situ, CTD, underway ctd, ecoctd |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Resolution Temporal Resolution: < 1 second Coverage North Bounding Coordinate: 38.1 degrees South Bounding Coordinate: 36.3 degrees West Bounding Coordinate: -125.4 degrees East Bounding Coordinate: -122.9 degrees Time Span: 2021-Aug-01 to 2023-May-31 Projection Ellipsoid: WGS 84 |
| DIRECT ACCESS | |
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| Available for access in-region with AWS Cloud | |
Region | |
| us-west-2 | |
| podaac-ops-cumulus-protected/SMODE_L2_SHIPBOARD_UCTD_ECOCTD_V1/ | |
| podaac-ops-cumulus-public/SMODE_L2_SHIPBOARD_UCTD_ECOCTD_V1/ | |
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| Name | Long Name | Unit |
|---|---|---|
| absolute_pressure | Absolute Pressure | dbar |
| absolute_pressure_qc | Pressure Quality Flag | 1 |
| absolute_salinity | Absolute Salinity | 1 |
| absolute_salinity_qc | Absolute Salinity Quality Flag | 1 |
| absolute_salinity_QCflag | Absolute Salinity Quality Flag | |
| backscatter_at_470nm | Backscatter at 470 nm | m-1 sr-1 |
| backscatter_at_470nm_qc | Backscatter at 470 nm Quality Flag | 1 |
| backscatter_at_700nm | Backscatter at 700 nm | m-1 sr-1 |
| backscatter_at_700nm_qc | Backscatter at 700 nm Quality Flag | 1 |
| C | Conductivity | mS cm-1 |
| C_qc | Conductivity Quality Flag | 1 |
| calibrated_chlorophyll_fluorescence | Calibrated Chlorophyll Fluorescence | ug L-1 |
| calibrated_chlorophyll_fluorescence_QCflag | Calibrated Chlorophyll Fluorescence Quality Flag | |
| Chlorophyll Fluorescence | Chlorophyll Fluorescence | µg/L |
| Chlorophyll Fluorescence Flag | Chlorophyll Fluorescence Quality Flag | 1 |
| chlorophyll_fluorescence | Chlorophyll Fluorescence | µg L-1 |
| chlorophyll_fluorescence_qc | Chlorophyll Fluorescence Quality Flag | 1 |
| conductivity | Conductivity | mS cm-1 |
| conductivity_qc | Conductivity Quality Flag | 1 |
| conductivity_QCflag | Conductivity Quality Flag | |
| conservative_temperature | Conservative Temperature | degrees_C |
| conservative_temperature_qc | Conservative Temperature Quality Flag | 1 |
| conservative_temperature_QCflag | Conservative Temperature Quality Flag | |
| corrected_backscatter_at_470nm | Corrected backscatter at 470 nm | m-1 sr-1 |
| corrected_backscatter_at_700nm | Corrected backscatter at 700 nm | m-1 sr-1 |
| CT | Conservative Temperature | degree_C |
| CT_qc | Conservative Temperature Quality Flag | 1 |
| latitude | latitude | degrees_north |
| longitude | longitude | degrees_east |
| O2_saturation | Oxygen Saturation | percent |
| O2_saturation_QCflag | Oxygen Saturation Quality Flag | |
| O2sat | Oxygen saturation | % |
| O2sat_qc | Oxygen saturation Quality Flag | 1 |
| O2temp_qc | Temperature measured at optode Quality Flag | 1 |
| Optode temperature | Temperature measured at optode | Celsius |
| optode_temperature | Optode Temperature | degree_C |
| optode_temperature_qc | Temperature measured at optode Quality Flag | 1 |
| optode_temperature_QCflag | Optode Temperature Quality Flag | |
| oxygen_saturation | Oxygen saturation | % |
| oxygen_saturation_qc | Oxygen saturation Quality Flag | 1 |
| P | Absolute Pressure | dbar |
| P_qc | Pressure Quality Flag | 1 |
| PAR | Photosynthetically Available Radiation | ug L-1 |
| PAR_QCflag | Photosynthetically Available Radiation Quality Flag | |
| particular_backscatter_coefficient_470nm | Particulate Backscatter Coefficient at 470nm | m-1 sr-1 |
| particular_backscatter_coefficient_470nm_QCflag | Particulate Backscatter Coefficient at 470nm Quality Flag | |
| particular_backscatter_coefficient_700nm | Particulate Backscatter Coefficient at 700nm | m-1 sr-1 |
| particular_backscatter_coefficient_700nm_QCflag | Particulate Backscatter Coefficient at 700nm Quality Flag | |
| particulate backscatter coefficient (470 nm) | particulate backscatter coefficient at 470 nm | m-1 sr-1 |
| particulate backscatter coefficient (470 nm) Flag | particulate backscatter coefficient at 470 nm Quality Flag | 1 |
| particulate backscatter coefficient (700 nm) | particulate backscatter coefficient at 700 nm | m-1 sr-1 |
| particulate backscatter coefficient (700 nm) Flag | particulate backscatter coefficient at 700 nm Quality Flag | 1 |
| particulate_organic_carbon | Particulate Organic Carbon | umol L-1 |
| particulate_organic_carbon_QCflag | Particulate Organic Carbon Quality Flag | |
| practical_salinity | Practical Salinity | 1 |
| practical_salinity_qc | Practical Salinity Quality Flag | 1 |
| practical_salinity_QCflag | Practical Salinity Quality Flag | |
| pressure | Absolute Pressure | dbar |
| pressure_qc | Sea Pressure Quality Flag | 1 |
| pressure_QCflag | Absolute Pressure Quality Flag | |
| SA | Absolute Salinity | gram kilogram-1 |
| SA_qc | Absolute Salinity Quality Flag | 1 |
| sea_pressure | Sea Pressure | dbar |
| sea_pressure_QCflag | Sea Pressure Quality Flag | |
| seaPress | Sea Pressure | dbar |
| seaPress_qc | Sea Pressure Quality Flag | 1 |
| SP | Practical Salinity | 1 |
| SP_qc | Practical Salinity Quality Flag | 1 |
| T | In-situ Temperature | degree_C |
| T_qc | In-situ Temperature Quality Flag | 1 |
| temperature | In-situ Temperature | degrees_C |
| temperature_qc | In-situ Temperature Quality Flag | 1 |
| temperature_QCflag | In-situ Temperature Quality Flag | |
| time | time | days since 1950-01-01T00:00:00+00:00 |
| time_qc | Time Quality Flag | 1 |
Citation is critically important for dataset documentation and discovery. Please cite the data as follows, and cite the reference papers when it is appropriate.
| Citation | S-MODE Team. 2022. S-MODE Shipboard uCTD and EcoCTD Measurements Version 1. Ver. 1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/SMODE-RVECT
For more information see Data Citations and Acknowledgments.
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