Data Set ID: 
AQ3_FT

Aquarius L3 Weekly Polar-Gridded Landscape Freeze/Thaw Data, Version 5

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).

This is the most recent version of these data.

Version Summary: 

This data set is being updated to Version 5 to match the other Aquarius polar gridded data products.

COMPREHENSIVE Level of Service

Data: Data integrity and usability verified; data customization services available for select data

Documentation: Key metadata and comprehensive user guide available

User Support: Assistance with data access and usage; guidance on use of data in tools and data customization services

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Parameter(s):
  • SNOW/ICE > FREEZE/THAW
Data Format(s):
  • HDF
Spatial Coverage:
N: 87.4, 
S: 50, 
E: 180, 
W: -180
Platform(s):SAC-D
Spatial Resolution:
  • 36 km x 36 km
Sensor(s):AQUARIUS_RADIOMETER
Temporal Coverage:
  • 25 August 2011 to 4 June 2015
Version(s):V5
Temporal Resolution7 dayMetadata XML:View Metadata Record
Data Contributor(s):Alexandre Roy, Ludovic Brucker, Michael Prince, Alain Royer, Chris Derksen

Geographic Coverage

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As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

Roy, A., L. Brucker, M. Prince, A. Royer, and C. Derksen. 2018. Aquarius L3 Weekly Polar-Gridded Landscape Freeze/Thaw Data, Version 5. [Indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: https://doi.org/10.5067/OV4R18NL3BQR. [Date Accessed].

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No technical references available for this data set.

How To

Programmatic Data Access Guide
Data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) can be accessed directly from our HTTPS file system or through our Application Programming Interface (API). Our API offers you the ability to order data using specific temporal and spatial filters... read more
Filter and order from a data set web page
Many NSIDC data set web pages provide the ability to search and filter data with spatial and temporal contstraints using a map-based interface. This article outlines how to order NSIDC DAAC data using advanced searching and filtering.  Step 1: Go to a data set web page This article will use the... read more
How do I convert an HDF5/HDF-EOS5 file into binary format?
To convert HDF5 files into binary format you will need to use the h5dump utility, which is part of the HDF5 distribution available from the HDF Group. How you install HDF5 depends on your operating system. Full instructions for installing and using h5dump on Mac/Unix and... read more