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Description

The Salinity and Stratification at the Sea Ice Edge (SASSIE) project is a NASA experiment that aims to understand how salinity anomalies in the upper ocean generated by melting sea ice affect sea surface temperature (SST), stratification, and subsequent sea-ice growth. SASSIE involved a field campaign that sampled the transition from summer melt to autumn ice advance in the Beaufort Sea during August-October 2022, making intensive in situ and remote sensing observations within ~200 km of the sea ice edge. A waveglider is an autonomous platform propelled by the conversion of ocean wave energy into forward thrust and employing solar panels to power instrumentation. During the SASSIE deployment, four wavegliders were deployed near Prudhoe Bay on 12-14 August 2022. The wavegliders collect measurements of ocean surface salinity, temperature, currents, waves, and meteorological data. Custom integrated Casting CTDs provide additional profiles of salinity and temperature to a depth of 150m below the surface. Data are available in netCDF format.

Product Summary

Platforms
Wave Glider
Instruments
CTD ,
ADCP ,
WAVE HEIGHT GAUGES ,
ANEMOMETERS ,
BAROMETERS ,
THERMOMETERS
Spatial Extent

N: 73.5 S: 70 E: -142 W: -156

Location
BEAUFORT SEA
Coordinate System
GEODETIC
Granule Spatial Representation
CARTESIAN
Temporal Extent
2022-08-12 to 2022-09-30
Data Partner
Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA (NASA/JPL/PODAAC)
Concept ID
C2637536168-POCLOUD
Data State
COMPLETE
Number of Files/Granules
4
Processing Level
2
Science Keywords
OCEAN TEMPERATURE PROFILES ,
CONDUCTIVITY PROFILES ,
OCEAN SALINITY PROFILES ,
Salinity ,
Conductivity ,
Ocean Currents ,
CURRENT PROFILES ,
Surface Winds ,
Air Temperature ,
Atmospheric Pressure Measurements ,
Swells ,
Wind Waves

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

Thomson, J. (2022). SASSIE Arctic Field Campaign L2 Wave Glider Data Fall 2022 [Data set]. NASA Physical Oceanography Distributed Active Archive Center. https://doi.org/10.5067/SASSIE-GLID2 Date Accessed: 2026-03-15

Documents

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 Description Units Data Type Fill Value Valid Range Scale Factor Offset
air_pressure air pressure at 1.0 m height above the wave-following surface hPa double -999 950 to 1050 1 N/A
air_temperature air temperature at 1.0 m height above the wave-following surface degree_C double -999 -40 to 40 1 N/A
depth Depth of Measurement m double N/A N/A 1 N/A
latitude Latitude of Measurement degrees_north double N/A N/A 1 N/A
longitude Longitude of Measurement degrees_east double N/A N/A 1 N/A
salinity sea water salinity 1 double -999 0 to 42 1 N/A
surface_wave_direction wave direction at spectral peak, direction from north degree double -999 0 to 360 1 N/A
surface_wave_height significant wave height m double -999 0 to 20 1 N/A
surface_wave_period peak of period orbital velocity spectra s double -999 0 to 20 1 N/A
time Time of Measurement days since 1950-01-01 double N/A N/A 1 N/A
water_temperature sea water temperature degree_C double -999 -2 to 30 1 N/A
wind_direction 0° from the north, 90° from the east, etc. degree double -999 0 to 360 1 N/A
wind_speed wind speed at 1.0 m height above the wave-following surface m s-1 double -999 0 to 100 1 N/A
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