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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 ~200km of the sea ice edge. This dataset contains shipboard meteorology and air-sea flux measurements. Data are available in netCDF format.

Product Summary

Platforms
Ships
Instruments
PYRANOMETERS ,
SONIC ANEMOMETER ,
Pyrgeometer
Spatial Extent

N: 73.55 S: 69 E: -144.8 W: -166

Geographic Region
BEAUFORT SEA
Coordinate System
GEODETIC
Granule Spatial Representation
CARTESIAN
Temporal Extent
2022-08-06 to 2022-10-01
Data Partner
Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA (NASA/JPL/PODAAC)
Concept ID
C2675923537-POCLOUD
Data State
COMPLETE
Number of Files/Granules
1
Processing Level
2
Science Keywords
Surface Precipitation ,
Sea Surface Skin Temperature ,
DOWNWELLING SHORTWAVE RADIATION ,
Upwelling Longwave Radiation ,
DOWNWELLING LONGWAVE RADIATION ,
Atmospheric Pressure Measurements ,
Humidity Indices ,
Air Temperature ,
Surface Winds

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

Viviane Menezes, S. Z. (2022). SASSIE Arctic Field Campaign Shipboard Meteorology Data Fall 2022 [Data set]. NASA Physical Oceanography Distributed Active Archive Center. https://doi.org/10.5067/SASSIE-MET2 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
air_pressure_setra surface air pressure from SETRA Pa float -9999 600 to 1100 1
air_temperature_merged air temperature product informed from LICOR Li-7500, Metek Sonic Temperature, and Vaisala HMP degrees C float -9999 -25 to 50 1
bulk_buoyancy_flux atmospheric buoyancy flux estimated using COARE3.5 W m-2 float -9999 -100 to 100 1
bulk_drag_coeff wind stress transfer (drag) coefficient 1 float -9999 0 to 0.0065 1
bulk_heatflux Both relative humidty sensors failed, uses constant RH = 89 W m-2 float -9999 -1000 to 1000 1
bulk_heatflux_high Both relative humidty sensors failed, uses constant RH = 70 W m-2 float -9999 -1000 to 1000 1
bulk_heatflux_low Both relative humidty sensors failed, uses constant RH = 100 W m-2 float -9999 -1000 to 1000 1
bulk_latent_heat_flux Both relative humidty sensors failed, uses constant RH = 89 W m-2 float -9999 -1000 to 1000 1
bulk_latent_heat_flux_high Both relative humidty sensors failed, uses constant RH = 70 W m-2 float -9999 -1000 to 1000 1
bulk_latent_heat_flux_low Both relative humidty sensors failed, uses constant RH = 100 W m-2 float -9999 -1000 to 1000 1
bulk_ocean_temp sea surface temperature degree_C float -9999 -2 to 30 1
bulk_sensible_heat_flux sensible heat flux into ocean estimated using COARE3.5 W m-2 float -9999 -1000 to 1000 1
bulk_U10 wind speed adjusted to 10 m m s-1 float -9999 0 to 50 1
bulk_U10_neutral neutral value of wind speed at 10m m s-1 float -9999 0 to 50 1
bulk_upwelling_IR estimated net longwave radiation from the SST, measured downwards IR, and assumed ocean albedo W m-2 float -9999 -1000 to 1000 1
bulk_ustar defined as u_star = sqrt( tau / rho) m s-1 float -9999 0 to 2.5 1
bulk_wind_stress wind stress estimated using COARE3.5 N m-2 float -9999 0 to 0.5 1
downwelling_longwave 20-minutes mean measured by the upwards longwave radiometer. This is not a net flux, because it does not include the upwelling flux W m-2 float -9999 -1000 to 1000 1
latitude latitude degrees_north float N/A N/A 1
longitude longitude degrees_east float N/A N/A 1
shortwave_radiation 20-minutes mean measured by the upwards shortwave radiometer W m-2 float -9999 -1000 to 1000 1
time time days since 1950-01-01 00:00:00 double N/A N/A 1
uw_bar_gill direct covariance stress m2 s-2 float -9999 -0.5 to 0.5 1
wdir_average Measured clockwise from north degrees float -9999 0 to 360 1
wdir_rel_gill Gill partial data loss when frozen but motion correction worked well on Gill degree float -9999 -180 to 180 1
wdir_rel_metek Motion pack + GPS failed on Metek; Metek was heated degree float -9999 -180 to 180 1
wdir_true_gill Measured clockwise from north. Gill partial data loss when frozen but motion correction worked well on Gill degrees float -9999 0 to 360 1
wdir_true_metek Measured clockwise from north. Motion pack + GPS failed on Metek; Metek was heated degrees float -9999 0 to 360 1
wspd_average true wind speed averaged between Gill and Metek anemometers m s-1 float -9999 0 to 50 1
wspd_rel_gill Gill partial data loss when frozen but motion correction worked well on Gill m s-1 float -9999 0 to 50 1
wspd_rel_metek Motion pack + GPS failed on Metek; Metek was heated m s-1 float -9999 0 to 60 1
wspd_true_gill Gill partial data loss when frozen but motion correction worked well on Gill m s-1 float -9999 0 to 50 1
wspd_true_metek Motion pack + GPS failed on Metek; Metek was heated m s-1 float -9999 0 to 60 1
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