N: 38.1 S: 36.3 E: -122.9 W: -125.4
Description
This dataset contains profiles of temperature, dissolved oxygen, salinity, and other observations collected by Seagliders during the Sub-Mesoscale Ocean Dynamics Experiment (S-MODE) field campaign. The experiment was conducted approximately 300 km offshore of San Francisco, during 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. Seagliders are autonomous underwater vehicles (AUVs) designed to glide from the ocean surface to as deep as 1000 m and back while
collecting profiles of oceanic variables. Data are available in netCDF format.
Product Summary
Documents
READ-ME
DATA CITATION GUIDELINES
GENERAL DOCUMENTATION
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 |
|---|---|---|---|---|---|---|---|
| aanderaa4831_dissolved_oxygen_L2 | level 2 disolved_oxygen (no despiker, not interpolated), recalculated from phase with salinity and pressure corrections | umol kg-1 | float | -999 | 0 to 300 | 1 | N/A |
| CT | Conservative Temperature (ITS-90) | degree_C | float | -999 | -2 to 30 | 1 | N/A |
| dissolved_oxygen | Dissolved oxygen recalculated from phase with salinity and pressure corrections interpolated over gaps < 50.0m [micromoles/kg] | umol kg-1 | float | -999 | 0 to 300 | 1 | N/A |
| dissolved_oxygen_flags | qc flag for dissolved oxygen: 0 no data (interpolated), 1 outside despiker, 2 is good | N/A | byte | -127 | N/A | 1 | N/A |
| dissolved_oxygen_ref | low-pass filtered dissolved_oxygen, 3.0 days and 10.0 m | umol kg-1 | float | -999 | 0 to 300 | 1 | N/A |
| dissolved_oxygen_rms_ref | rms of dissolved_oxygen within smoothing window (high-freq variance). Despiker removes data more than 2.0 deviations for mean | umol kg-1 | float | -999 | 0 to 300 | 1 | N/A |
| dive | Dive number for observations | N/A | short | N/A | N/A | 1 | N/A |
| inst_aa4831 | inst_aa4831 | N/A | double | N/A | N/A | 1 | N/A |
| inst_ctd | inst_ctd | N/A | double | N/A | N/A | 1 | N/A |
| inst_wlbb2fl | inst_wlbb2fl | N/A | double | N/A | N/A | 1 | N/A |
| lat_dive | average latitude of the dive | degrees_north | float | N/A | N/A | 1 | N/A |
| lat_gps | Latitude from GPS fix at start/end of the dive | degrees_north | float | N/A | N/A | 1 | N/A |
| lat_profile | Latitude for the 1/4 or 3/4 position between the starting and ending GPS position | degrees_north | float | N/A | N/A | 1 | N/A |
| lon_dive | average longitude of the dive | degrees_east | float | N/A | N/A | 1 | N/A |
| lon_gps | Longitude from GPS fix at start/end of the dive | degrees_east | float | N/A | N/A | 1 | N/A |
| lon_profile | Longitude for the 1/4 or 3/4 position between the starting and ending GPS position | degrees_east | float | N/A | N/A | 1 | N/A |
| P | pressure | dbar | float | -999 | 0 to 1500 | 1 | N/A |
| PD | Potential density | kg m-3 | float | -999 | 1024 to 1028 | 1 | N/A |
| S | corrected salinity, with outliers removed, interpolated over gaps < 50.0m | 1 | float | -999 | 2 to 42 | 1 | N/A |
| SA | Absolute salinity | g kg-1 | float | -999 | 0 to 40 | 1 | N/A |
| speed | forward speed of the glider through the water from the flight model | m s-1 | float | -999 | 0 to 150 | 1 | N/A |
| surface_curr_east | surface current in the east direction from the gps track | m s-1 | float | -999 | -2 to 2 | 1 | N/A |
| surface_curr_north | surface current in the north direction from gps track | m s-1 | float | -999 | -2 to 2 | 1 | N/A |
| S_flags | qc flag for salinity: 0 no data (interpolated), 1 outside despiker, 2 is good | N/A | byte | -127 | N/A | 1 | N/A |
| S_L2 | level 2 salinity (no despiker, not interpolated), with basestation processing (qc_good) | 1.0 | float | -999 | 2 to 42 | 1 | N/A |
| S_ref | low-pass filtered salinity, 3.0 days and 10.0 m | 1.0 | float | -999 | 2 to 42 | 1 | N/A |
| S_rms_ref | rms of salinity within smoothing window (high-freq variance). Despiker removes data more than 2.0 deviations for mean | 1.0 | float | -999 | 2 to 42 | 1 | N/A |
| T | corrected in-situ temperature, with outliers removed, interpolated over gaps < 50.0m | degree_C | float | -999 | -2.6 to 40 | 1 | N/A |
| time | time for every sample point, interpolated | seconds since 1970-01-01T00:00:00Z | double | N/A | N/A | 1 | N/A |
| time_dive | average time for the dive | seconds since 1970-01-01T00:00:00Z | float | N/A | N/A | 1 | N/A |
| time_gps | Time of the GPS fix at start/end of the dive | seconds since 1970-01-01T00:00:00Z | float | N/A | N/A | 1 | N/A |
| time_profile | Time of the 1/4 or 3/4 position between the starting and ending GPS position | seconds since 1970-01-01T00:00:00Z | float | N/A | N/A | 1 | N/A |
| T_flags | qc flag for temperature: 0 no data (interpolated), 1 outside despiker, 2 is good | N/A | byte | -127 | N/A | 1 | N/A |
| T_L2 | level 2 temperature (no despiker, not interpolated), with basestation processing (qc_good) | degree_C | float | -999 | -2 to 30 | 1 | N/A |
| T_ref | low-pass filtered temperature, 3.0 days and 10.0 m | degree_C | float | -999 | -2 to 30 | 1 | N/A |
| T_rms_ref | rms of temperature within smoothing window (high-freq variance). Despiker removes data more than 2.0 deviations for mean [deg C] | degree_C | float | -999 | -2 to 30 | 1 | N/A |
| u_dive | depth-average current in the east direction from the flight model | m s-1 | float | -999 | -2 to 2 | 1 | N/A |
| v_dive | depth-average current in the north direction from the flight model | m s-1 | float | -999 | -2 to 2 | 1 | N/A |
| wlbb2fl_sig470nm_adjusted | total volume blue scattering coefficient using manufacturer-supplied dark counts and scaling factor interpolated over gaps < 50.0m | m-1 sr-1 | float | -999 | 0 to 0.1 | 1 | N/A |
| wlbb2fl_sig470nm_adjusted_flags | qc flag for wlbb2fl_sig470nm_adjusted: 0 no data (interpolated), 1 outside despiker, 2 is good | N/A | byte | -127 | N/A | 1 | N/A |
| wlbb2fl_sig470nm_adjusted_L2 | level 2 wlbb2fl_sig470nm_adjusted (no despiker, not interpolated) | m-1 sr-1 | float | -999 | 0 to 0.1 | 1 | N/A |
| wlbb2fl_sig470nm_adjusted_ref | low-pass filtered wlbb2fl_sig470nm_adjusted, 3.0 days and 10.0 m | m-1 sr-1 | float | -999 | 0 to 0.1 | 1 | N/A |
| wlbb2fl_sig470nm_adjusted_rms_ref | rms of wlbb2fl_sig470nm_adjusted within smoothing window (high-freq variance). Despiker removes data more than 2.0 deviations for mean | m-1 sr-1 | float | -999 | 0 to 0.1 | 1 | N/A |
| wlbb2fl_sig695nm_adjusted | chlorophyll-a concentration using manufacturer-supplied dark counts and scaling factor based on phytoplankton monoculture interpolated over gaps < 50.0m | ug L-1 | float | -999 | 0 to 0.1 | 1 | N/A |
| wlbb2fl_sig695nm_adjusted_flags | qc flag for wlbb2fl_sig695nm_adjusted: 0 no data (interpolated), 1 outside despiker, 2 is good | N/A | byte | -127 | N/A | 1 | N/A |
| wlbb2fl_sig695nm_adjusted_L2 | level 2 wlbb2fl_sig695nm_adjusted (no despiker, not interpolated) | m-1 sr-1 | float | -999 | 0 to 0.1 | 1 | N/A |
| wlbb2fl_sig695nm_adjusted_ref | low-pass filtered wlbb2fl_sig695nm_adjusted, 3.0 days and 10.0 m | m-1 sr-1 | float | -999 | 0 to 0.1 | 1 | N/A |
| wlbb2fl_sig695nm_adjusted_rms_ref | rms of wlbb2fl_sig695nm_adjusted within smoothing window (high-freq variance). Despiker removes data more than 2.0 deviations for mean | m-1 sr-1 | float | -999 | 0 to 0.1 | 1 | N/A |
| wlbb2fl_sig700nm_adjusted | total volume red scattering coefficient using manufacturer-supplied dark counts and scaling factor interpolated over gaps < 50.0m | m-1 sr-1 | float | -999 | 0 to 0.1 | 1 | N/A |
| wlbb2fl_sig700nm_adjusted_flags | qc flag for wlbb2fl_sig700nm_adjusted: 0 no data (interpolated), 1 outside despiker, 2 is good | N/A | byte | -127 | N/A | 1 | N/A |