We are developing software to access HDF5 data via OPeNDAP's Data Access Protocol. This project consists of two phases.
In phase 1...
We have implemented an HDF5 data handler so that general HDF5 data can be served via OPeNDAP. In particular, we added the support of using the existing OPeNDAP clients to visualize NASA HDF-EOS5 Grid data. We believe that the server can help researchers, scientists, educators, and the general public visualize and analyze HDF-EOS5 data via existing DAP clients. The source code of the handler has been released by OPeNDAP (URL: http://www.opendap.org/download/hdf5_handler.html).
The following figure demonstrates how HDF-EOS5 grid data can be visualized via HDF5-DAP data handler by DAP client IDV. The data is HDF-EOS5 aura OMI Level 3 Grid data. It shows the ozone concentration level over the south pole on November 9, 2007.
You may click the images to have a larger view.
You may click here to see a movie of ozone concentration level over the south pole that we used HDF5 OPeNDAP handler and IDV to generate.
We also presented our work at 88th AMS annual meeting. One can check our extended abstract for the summary of our work. The extended abstract can be found at:
http://ams.confex.com/ams/pdfpapers/130999.pdf
or
http://hdfdap.hdfgroup.uiuc.edu:8080/Access_HDF5_data_via_OPeNDAP_AMS.pdf
For more information, visit HDF5 OPeNDAP project homepage: http://hdfdap.hdfgroup.uiuc.edu:8080/
In phase 2...
We will implement an HDF5-friendly OPeNDAP client library. For more information, please visit HDF5 OPeNDAP project homepage: http://hdfdap.hdfgroup.uiuc.edu:8080/.
- - Last modified:February 12th 2008