Alaska Satellite Facility
Delivering Remote Sensing Data Since 1991

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How to View Seasat HDF5 Files in ASF MapReady

Source: ASF Staff

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Why use ASF MapReady to view Seasat synthetic aperture radar (SAR) HDF5 files?

ASF MapReady enables users to view Seasat HDF5 files. To digitally process 1978 Seasat SAR data in 2013, ASF engineers used the most recent version of the Hierarchical Data Format, HDF5. A jpg browse image is included with the products, and the Seasat HDF5 files are viewable through ASF MapReady. Each HDF5 file consists of a metadata group and a data group containing the SAR data as backscatter values in the HH layer as well as latitude, longitude, and temporal data. You can view Seasat HDF5 data by following the recipe on this page. 

Seasat data originally was archived on magnetic tapes, and images processed from the tapes were available only as optical images of film strips or scanned digital images. Neither the tapes nor the film allow the quantitative analysis possible with the new digital archive.

Las Vegas is on the left in this detail of the Seasat sample synthetic aperture radar (SAR) granule provided with this recipe.
Las Vegas is on the left in this detail of the Seasat sample granule provided with this recipe. Credit: NASA 1978, processed by ASF DAAC 2013. 

Get SAR Data

Get SAR Data

Select and download SAR data online using Vertex.

Use the ASF API for downloading SAR data via a command line.