HDF-EOS Metadata Updater (HEMU) -- Unsupported

The HDF-EOS Metadata Updater is a tool that extracts, replaces and updates metadata in an HDF-EOS file. This program accesses three kinds of metadata: CoreMetadata (InventoryMetadata), ArchiveMetadata and CollectionMetadata.

Building HEMU from source code

This program requires the HDF4 library and the HDF5 library. Although this program can access HDF-EOS files, the HDF-EOS2 library or the HDF-EOS5 library is not necessary to build this program.

The HEMU package contains a Makefile. The user needs to set HDF4 and HDF5 library paths as follows:

Another modification may be necessary if either the HDF4 library or the HDF5 library was built with the SZIP library; -lsz needs to be added to hemu rule.

If the HDF5 library is 1.8 or higher, the user may get compilation errors about the number of arguments, which can be avoided by adding -DH5_USE_16_API to CFLAGS.

Using HEMU

The package includes a text document readme_linux.txt. This text file explains how to use this program. The following is an example that extracts metadata from a real AMSR-E AE_RnGd file from NSIDC. Users can download this file here.

This will dump the following three attributes and save them into AMSR_E_L3_RainGrid_B05_200707.hdf.output.

• CoreMetadata
• ArchiveMetadata
• CollectionMetadata

You can see a sample output from here.

Last modified: 11/11/2020