Skip to main content

Description

This dataset contains Slocum glider in-situ 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. US Naval Oceanographic Office (NAVOCEANO) Slocum gliders measure subsurface properties including temperature and salinity by profiling to a depth of 1000m at a fixed location every 4 hours. Data are available in netCDF format.

Product Summary

Platforms
AUVS
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
2021-08-01 to 2023-05-31
Data Partner
Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA (NASA/JPL/PODAAC)
Concept ID
C2301083264-POCLOUD
Data State
COMPLETE
Number of Files/Granules
38
Processing Level
2
Science Keywords
Salinity/Density ,
Conductivity ,
OCEAN TEMPERATURE PROFILES ,
Salinity ,
OCEAN SALINITY PROFILES

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

S-MODE. (2022). S-MODE Temperature and Salinity from Slocum Gliders Version 1 [Data set]. NASA Physical Oceanography Distributed Active Archive Center. https://doi.org/10.5067/SMODE-GLID2 Date Accessed: 2025-12-14

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
bbam_beam_c attenuation is measured at 532nm m-1 float -9999 0.01 to 100 1
bbam_factory_beam_c attenuation is measured at 532nm m-1 float -9999 0.01 to 100 1
conductivity NAVO glider sea water conductivity corrected for first-order lag mS cm-1 float -9999 20 to 65 1
conductivity_raw sea water conductivity reported by NAVO glider mS cm-1 float -9999 20 to 65 1
depth NAVO glider depth m float N/A N/A 1
end_latitude Latitude at end of NAVO glider profile degree_north double N/A N/A 1
end_longitude Longitude at end of NAVO glider profile degree_east double N/A N/A 1
end_time End time of NAVO glider profile days since 1950-01-01T00:00:00Z double N/A N/A 1
latitude Latitude recorded by NAVO glider degree_north double N/A N/A 1
longitude Longitude recorded by NAVO glider degree_east double N/A N/A 1
profile_number CTD profile number 1 short N/A N/A 1
salinity Sea water practical salinity measured by NAVO glider 1 float -9999 -2 to 42 1
start_latitude Latitude at start of NAVO glider profile degree_north double N/A N/A 1
start_longitude Longitude at start of NAVO glider profile degree_east double N/A N/A 1
start_time Start time of NAVO glider profile days since 1950-01-01T00:00:00Z double N/A N/A 1
temperature Sea water temperature corrected for first-order lag degrees_C float -9999 -1 to 32 1
temperature_raw In situ sea water temperature recorded by NAVO glider degrees_C float -9999 -1 to 32 1
time Time recorded by NAVO glider days since 1950-01-01T00:00:00Z double N/A N/A 1
You're viewing 18 of 18