N: 75 S: 65 E: -144 W: -170
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.
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Citation
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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 Sort descending | 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 |