Library Examples

This page provides many examples on how to access HDF-EOS files using C, FORTRAN, IDL, and MATLAB programming languages. Besides general C, Fortran,IDL and MATLAB examples, C and Fortran examples to access some NASA EOS data products distributed by NASA data centers such as GES DISC, NSIDC, LP DAAC and LaRC are available.

We also provide a section with several special programming examples that includes the access of special HDF-EOS files and retrieval of specific information from HDF-EOS files. Since most Earth Science applications need to know the geo-location information such as the latitude and the longitude for a given data element, in this section we provide a page to describe how one can use HDF-EOS2 APIs to retrieve latitude and longitude information from an HDF-EOS Grid file. Other examples include how one can retrieve one HDF-EOS file metadata information that cannot be accessed by HDF-EOS APIs and some helpful hints on how to handle HDF-EOS2 Grid files that don't provide some key metadata information.

C

• Access HDF-EOS2 Grid data
• More examples on accessing HDF-EOS2 Grid data - examples to handle AMSR-E, AIRS, NADIR BRDF and MISR data.
• Access HDF-EOS2 Swath data
• More examples on accessing HDF-EOS2 Swath data - examples to handle AMSR-E, MODIS, AMSU and MOPITT data.

• Access HDF-EOS5 Grid data
• More examples on accessing HDF-EOS5 Grid data - examples to handle OMI, MLS and TES data.
• Access HDF-EOS5 Swath data
• More examples on accessing HDF-EOS5 Swath data - examples to handle HIRDLS, MLS, OMI and TES data.

Fortran

• Access HDF-EOS2 Grid data
• More examples on HDF-EOS2 Grid data - examples to handle AMSR-E, AIRS, NADIR BRDF and MISR data.
• Access HDF-EOS2 Swath data
• More examples on HDF-EOS2 Swath data - examples to handle AMSR-E, MODIS, AMSU and MOPITT data.

• Access HDF-EOS5 Grid data
• More examples on HDF-EOS5 Grid data - examples to handle OMI, MLS and TES Aura data.
• Access HDF-EOS5 Swath data
• More examples on HDF-EOS5 Swath data - examples to handle HIRDLS, MLS, OMI and TES Aura data.

MATLAB

• Access and Visualize HDF-EOS5 Grid data and Swath data
• Access and Visualize HDF-EOS2 Grid data and Swath data
• Access and Visualize HDF-EOS2 Grid data via OPeNDAP

IDL

• Access and Visualize HDF-EOS2 Grid data and Swath data
• Access and Visualize HDF-EOS2 Grid data via OPeNDAP
• Access and Visualize HDF-EOS5 MLS Swath data

Special examples to handle HDF-EOS data

• Read Longitude and Latitude Values from HDF-EOS2 Grid data
• Read Longitude and Latitude Values from HDF-EOS5 Grid data
• How to Read non-HDF-EOS2 objects from Hybrid HDF-EOS2/HDF4 files
• What happens if HDF-EOS2 Grid data has wrong parameters
• How to Handle a HDF-EOS2 Grid file when non-standard Dimensions are used
• NcML Examples for NASA HDF/HDF-EOS files
• Adding CF Attributes to an HDF5 File

Last modified: 11/11/2020