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Description

This dataset provides the Conductivity, Temperature, and Depth measurements carried by a Slocum glider. The measurements were collected during the 2019-2020 SWOT prelaunch field campaign conducted near the SWOT crossover location in the California Currents, 300km west of Monterey, California, USA. It has 883 CTD profiles with glider diving depths varying between 500 m and 1000 m. Details can be found in the user guide and the journal reference given in the documentation section.

Product Summary

Platforms
SEAGLIDER
Instruments
CTD
Spatial Extent

N: 36.2 S: 35.8 E: -125 W: -125.2

Geographic Region
PACIFIC OCEAN
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2019-09-05 to 2019-12-28
Data Partner
Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA (NASA/JPL/PODAAC)
Concept ID
C2229635647-POCLOUD
Data State
COMPLETE
Number of Files/Granules
883
Processing Level
2
Published
Science Keywords
Ocean Temperature ,
Salinity/Density ,
Ocean Pressure

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

SWOT. (2022). SWOT 2019-2020 Prelaunch Oceanography Field Campaign Rutgers Slocum Gliders [Data set]. NASA Physical Oceanography Distributed Active Archive Center. https://doi.org/10.5067/SWTPR-GLID1 Date Accessed: 2025-12-16

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
commanded_fin c_fin rad float 9.96921E+36 N/A 1
commanded_heading c_heading rad float 9.96921E+36 N/A 1
commanded_pitch c_pitch rad float 9.96921E+36 N/A 1
commanded_roll c_roll rad float 9.96921E+36 N/A 1
commanded_wpt_lat c_wpt_lat degree_north double 9.9692099683869E+36 -90 to 90 1
commanded_wpt_lon c_wpt_lon degree_east double 9.9692099683869E+36 -180 to 180 1
conductivity_raw Raw Conductivity S m-1 float 9.96921E+36 0 to 10 1
ctd41cp_timestamp sci_ctd41cp_timestamp seconds since 1970-01-01T00:00:00+00:00 double 9.9692099683869E+36 0 to 2147483647 1
density_corr Corrected Density kg m-3 double 9.9692099683869E+36 1015 to 1040 1
density_raw Raw Density kg m-3 double 9.9692099683869E+36 1015 to 1040 1
depth_corr Calculated from pressure and latitude m double 9.9692099683869E+36 0 to 2000 1
depth_raw Calculated from pressure and latitude m double 9.9692099683869E+36 0 to 2000 1
instrument_ctd Pumped N/A int -2147483647 N/A 1
latitude Interpolated m_gps_lat values degree_north double 9.9692099683869E+36 -90 to 90 1
longitude Interpolated m_gps_lon values degree_east double 9.9692099683869E+36 -180 to 180 1
measured_altitude m_altitude m float 9.96921E+36 N/A 1
measured_appear_to_be_at_surface m_appear_to_be_at_surface bool byte -127 N/A 1
measured_battery m_battery volts float 9.96921E+36 N/A 1
measured_battery_inst m_battery_inst volts float 9.96921E+36 N/A 1
measured_coulomb_amphr m_coulomb_amphr amp-hrs float 9.96921E+36 N/A 1
measured_depth m_depth m float 9.96921E+36 N/A 1
measured_depth_state m_depth_state enum byte -127 N/A 1
measured_fin m_fin rad float 9.96921E+36 N/A 1
measured_gps_full_status m_gps_full_status enum byte -127 N/A 1
measured_gps_lat m_gps_lat degree_north double 9.9692099683869E+36 -90 to 90 1
measured_gps_lon m_gps_lon degree_east double 9.9692099683869E+36 -180 to 180 1
measured_gps_status m_gps_status enum byte -127 N/A 1
measured_heading m_heading rad float 9.96921E+36 N/A 1
measured_iridium_call_num m_iridium_call_num nodim float 9.96921E+36 N/A 1
measured_iridium_redials m_iridium_redials nodim float 9.96921E+36 N/A 1
measured_iridium_signal_strength m_iridium_signal_strength nodim float 9.96921E+36 N/A 1
measured_lat m_lat degree_north double 9.9692099683869E+36 -90 to 90 1
measured_lon m_lon degree_east double 9.9692099683869E+36 -180 to 180 1
measured_pitch m_pitch rad float 9.96921E+36 N/A 1
measured_present_time m_present_time seconds since 1970-01-01T00:00:00+00:00 double 9.9692099683869E+36 0 to 2147483647 1
measured_pressure m_pressure decibar float 9.96921E+36 N/A 1
measured_roll m_roll rad float 9.96921E+36 N/A 1
measured_science_clothesline_lag m_science_clothesline_lag s float 9.96921E+36 N/A 1
measured_vacuum m_vacuum inHg float 9.96921E+36 N/A 1
measured_water_depth m_water_depth m float 9.96921E+36 N/A 1
measured_water_vx m_water_vx m/s float 9.96921E+36 N/A 1
measured_water_vy m_water_vy m/s float 9.96921E+36 N/A 1
platform SWOT Monterey Bay, CA deployment N/A byte 1 N/A 1
practical_salinity_corr Corrected Salinity 1 double 9.9692099683869E+36 0 to 40 1
practical_salinity_raw Raw Practical Salinity 1 double 9.9692099683869E+36 0 to 40 1
pressure_corr Converted from bar to decibar decibar float 9.96921E+36 0 to 2000 1
pressure_raw Converted from bar to decibar decibar float 9.96921E+36 0 to 2000 1
profile_dir Profile direction, d for downcast, u for upcast N/A string N/A N/A 1
profile_id 0 based sequential profile number N/A ushort 65535 N/A 1
profile_time Timestamp of the mid-point of the profile seconds since 1970-01-01T00:00:00+00:00 double 9.9692099683869E+36 N/A 1
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