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Description

This Level-3 (L3) data set includes weekly Northern Hemisphere landscape freeze/thaw (FT) data derived from L-band radiometer brightness temperature observations, acquired by the Aquarius sensor on board Argentina's Satélite de Aplicaciones Científicas (SAC-D) satellite. The data are distributed on the Equal-Area Scalable Earth Grid, Version 2.0 (EASE-Grid 2.0), with a spatial resolution of 36 km. The SAC-D satellite was developed collaboratively between NASA and Argentina's space agency, Comisión Nacional de Actividades Espaciales (CONAE).

Product Summary

Platforms
SAC-D
Instruments
AQUARIUS_RADIOMETER
Spatial Extent

N: 87.4 S: 50 E: 180 W: -180

Spatial Resolution
36 Kilometers x 36 Kilometers
Geographic Region
ARCTIC
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2011-08-25 to 2015-06-04
Concept ID
C2777852942-NSIDC_CPRD
Data State
ACTIVE
Number of Files/Granules
197
Processing Level
3
Science Keywords
Freeze/Thaw

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

Roy, A., Brucker, L., Prince, M., Royer, A., & Derksen, C. (2018). Aquarius L3 Weekly Polar-Gridded Landscape Freeze/Thaw Data, Version 5 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/OV4R18NL3BQR Date Accessed: 2025-12-14

Documents

USER'S GUIDE

GENERAL DOCUMENTATION