News

Latest Newsletter - #103 Published on 7/21/2008: Latest Official Release of HDF4: 4.2r3 - See Newsletter: 100
Latest Official Release of HDF5: 5 1.8.1 - See Newsletter: 102
Latest Official Release of HDF5 1.6: 5 1.6.7 - See Newsletter: 100

HDF and HDF-EOS Workshop XII

The HDF and HDF-EOS Workshop XII has been scheduled for:

   October 15-17th
   Aurora, Colorado

For more information, see Newsletter 103, or the Workshop XII page at:

   http://www.hdfeos.org/workshops/ws12/workshop_twelve.php

Bulletin October 7, 2008

NASA Commits 3.1M to The HDF Group for Earth System Science

As reported on October 1st, 2008 in HPCWire, the HDF Group has received a 3-year contract from the National Aeronautics and Space Administration (NASA) to provide ongoing development and support for the HDF technologies used by NASA's Earth Observing System (EOS).

The contract will be announced at the upcoming 12th HDF & HDF-EOS Workshop in Aurora, Colorado, October 15th through 17th.

Bulletin September 2, 2008

RFC: Special Values in HDF5

A new Request for Comment on the handling of Special Values in HDF5 has been published. The HDF Group is currently soliciting feedback on this RFC. Community comments will be one of the factors considered by The HDF Group in making the final design and implementation decision. Comments may be sent to the THG Heldesk.

Please be sure to check the RFCs page for a complete list of published RFCs.

Bulletin August 14, 2008

HDF5-OPeNDAP Used In Tracking Beijing Air Quality

The HDF5-OPeNDAP Project has been used to facilitate the use of HDF-EOS Data to track Beijing air quality. For more information on this, see: HDF5 OPeNDAP Brief 8/14/08 [pdf]

Bulletin June 24, 2008

NetCDF-4 Performance Report

NetCDF-4 is an I/O software package that retains the original netCDF APIs while using HDF5 to store the data. Sponsored by NASA ESTO, netCDF-4 is the result of a collaboration between Unidata and The HDF Group.

The HDF Group has prepared a report on the performance of netCDF-4 that uses benchmarks and examples to:

compare the performance of netCDF-3 and netCDF-4
discuss performance tuning with netCDF-4
discuss performance pitfalls with netCDF-4

Some of the performance tuning and pitfalls discussions may also be of interest to users of HDF5 who do not use netCDF-4. The report is available at:

   http://www.hdfgroup.org/pubs/papers/2008-06_netcdf4_perf_report.pdf