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Description

This dataset contains measurements of shipboard ocean current speed vertical shear from an acoustic doppler current profiler (ADCP) during the Salinity and Stratification at the Sea Ice Edge (SASSIE) field campaign. SASSIE 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 ~200km of the sea ice edge.

Product Summary

Platforms
Ships
Instruments
ADCP
Spatial Extent

N: 75 S: 65 E: -144 W: -170

Geographic Region
BEAUFORT SEA
Coordinate System
GEODETIC
Granule Spatial Representation
CARTESIAN
Temporal Extent
2022-09-08 to 2022-10-04
Data Partner
Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA (NASA/JPL/PODAAC)
Concept ID
C2775118883-POCLOUD
Data State
COMPLETE
Number of Files/Granules
1
Processing Level
2
Science Keywords
CURRENT PROFILES ,
SURFACE SPEED

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

Gaube, P. (2022). SASSIE Arctic Field Campaign Shipboard Acoustic Doppler Current Profiler Data Fall 2022 [Data set]. NASA Physical Oceanography Distributed Active Archive Center. https://doi.org/10.5067/SASSIE-ADCP2 Date Accessed: 2025-12-13

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
depth depth m double N/A N/A 1
latitude Ocean current speed vertical shear s-1 double N/A N/A 1
longitude longitude degree_east double N/A N/A 1
shear Ocean current speed vertical shear was computed from current magniutde measurments made by an Telydine Workhorse 300 kHz ADCP oporated in narrow-band mode. Current magnitude larger than 2 m/s were flagged as errors and removed from the data prior to computing the vertical gradient. Current magnitude shear is computed on a vertical grid located at the midpoints between ADCP bins per second double -9999 -0.3 to 0.3 1
time time days since 1950-01-01 double N/A N/A 1
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