Ada 95 Bindings for the NCSA Hierarchical Data Format

Bruce Barkstrom

Dr. Bruce R. Barkstrom is currently Head of the Atmospheric Sciences Data Center at NASA's Langley Research Center in Hampton, VA. This data center is a scientific digitial library that is currently processing, archiving, and distributing about three TeraBytes of data per month from two instruments on the NASA Terra Spacecraft, in addition to archiving and distributing data from may other data sources. Dr. Barkstrom has been actively engaged in work on NASA's Earth Observing System's Data and Information System (EOSDIS) over the last decade, receiving a NASA Exceptional Achievement Medal for his contributions to the system architecture and cost modeling for this system. He has developed a unique user model for this system, based on Markov models for user activities and innovation-diffusion models for the rate at which users become customers of such a system.

Before becoming Head of the Data Center, Dr. Barkstrom was Instrument Principal Investigator for the EOS investigation of Clouds and the Earth's Radiant Energy System (CERES), where he developed the CERES software system's architecture and data production logistics plans. CERES is a multi-instrument investigation of the interaction between clouds and the Earth's Radiant Energy System - clouds forming the most uncertain modulator of the energy flows that govern the Earth's climate.

In 1998 and 1999, Dr. Barkstrom spent a six-month sabbatical supported by a NASA Langley Thompson Fellowship with the Hierarchical Data Format (HDF) Group at the National Computational Sciences Alliance (NCSA) in Champaign-Urbana, Illinois, investigating the application of the HDF data format to problems arising from tracking cloud systems on a global basis. HDF has been the recommended standard for data in this system, including CERES data. Thus, Dr. Barkstrom has been very interested in understanding and developing tools for working with this data format. Dr. Barkstrom has been programming in Ada for most of the last ten years, developing a number of scientific and managerial applications for use in the CERES investigation.

Bruce R. Barkstrom
Mail Stop 420
NASA Langley Research Center
Hampton, VA 23681-2199

Phone: +1 (757) 864-5676
FAX: +1 (757) 864-7996