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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

Platforms
SEAGLIDER
Instruments
CTD
Spatial Extent

N: 38.1 S: 36.3 E: -122.9 W: -125.4

Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2022-08-23 to 2023-07-07
Data Partner
Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA (NASA/JPL/PODAAC)
Concept ID
C2847092563-POCLOUD
Data State
COMPLETE
Number of Files/Granules
12
Processing Level
3
Science Keywords
Oxygen ,
Salinity ,
Scattering ,
Chlorophyll Concentration ,
SURFACE CURRENTS ,
SUBSURFACE CURRENTS

Documents

Variables

Variables are a set of physical properties whose values determine the characteristics or behavior of something. For example, temperature and pressure are variables of the atmosphere. Parameters and variables can be used interchangeably. Variable level attributes provide individual information for each variable.

The Name in this table is the variable name. Fill value indicates missing or undefined data points in a variable. Valid range is the range of values the variable can store. Scale factor is used to increase or decrease the size of an object and can be used to correct for distortion. For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor
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
CT Conservative Temperature (ITS-90) degree_C float -999 -2 to 30 1
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
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
dissolved_oxygen_ref low-pass filtered dissolved_oxygen, 3.0 days and 10.0 m umol kg-1 float -999 0 to 300 1
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
dive Dive number for observations N/A short N/A N/A 1
inst_aa4831 inst_aa4831 N/A double N/A N/A 1
inst_ctd inst_ctd N/A double N/A N/A 1
inst_wlbb2fl inst_wlbb2fl N/A double N/A N/A 1
lat_dive average latitude of the dive degrees_north float N/A N/A 1
lat_gps Latitude from GPS fix at start/end of the dive degrees_north float N/A N/A 1
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
lon_dive average longitude of the dive degrees_east float N/A N/A 1
lon_gps Longitude from GPS fix at start/end of the dive degrees_east float N/A N/A 1
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
P pressure dbar float -999 0 to 1500 1
PD Potential density kg m-3 float -999 1024 to 1028 1
S corrected salinity, with outliers removed, interpolated over gaps < 50.0m 1 float -999 2 to 42 1
SA Absolute salinity g kg-1 float -999 0 to 40 1
speed forward speed of the glider through the water from the flight model m s-1 float -999 0 to 150 1
surface_curr_east surface current in the east direction from the gps track m s-1 float -999 -2 to 2 1
surface_curr_north surface current in the north direction from gps track m s-1 float -999 -2 to 2 1
S_flags qc flag for salinity: 0 no data (interpolated), 1 outside despiker, 2 is good N/A byte -127 N/A 1
S_L2 level 2 salinity (no despiker, not interpolated), with basestation processing (qc_good) 1.0 float -999 2 to 42 1
S_ref low-pass filtered salinity, 3.0 days and 10.0 m 1.0 float -999 2 to 42 1
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
T corrected in-situ temperature, with outliers removed, interpolated over gaps < 50.0m degree_C float -999 -2.6 to 40 1
time time for every sample point, interpolated seconds since 1970-01-01T00:00:00Z double N/A N/A 1
time_dive average time for the dive seconds since 1970-01-01T00:00:00Z float N/A N/A 1
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
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
T_flags qc flag for temperature: 0 no data (interpolated), 1 outside despiker, 2 is good N/A byte -127 N/A 1
T_L2 level 2 temperature (no despiker, not interpolated), with basestation processing (qc_good) degree_C float -999 -2 to 30 1
T_ref low-pass filtered temperature, 3.0 days and 10.0 m degree_C float -999 -2 to 30 1
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
u_dive depth-average current in the east direction from the flight model m s-1 float -999 -2 to 2 1
v_dive depth-average current in the north direction from the flight model m s-1 float -999 -2 to 2 1
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
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
wlbb2fl_sig470nm_adjusted_L2 level 2 wlbb2fl_sig470nm_adjusted (no despiker, not interpolated) m-1 sr-1 float -999 0 to 0.1 1
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
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
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
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
wlbb2fl_sig695nm_adjusted_L2 level 2 wlbb2fl_sig695nm_adjusted (no despiker, not interpolated) m-1 sr-1 float -999 0 to 0.1 1
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
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
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
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
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