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HDF-EOS Workshop IV September 19-21, 2000. Richard E. Ullman ESDIS Information Architect NASA/ GSFC, Code 423. Workshop IV Goals. Show where we are in application of HDF5 to the HDF-EOS “profile”.
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HDF-EOS Workshop IV September 19-21, 2000 Richard E. Ullman ESDIS Information Architect NASA/ GSFC, Code 423
Workshop IV Goals • Show where we are in application of HDF5 to the HDF-EOS “profile”. • Share progress in development of tools, both commercial and government sponsored that recognize HDF and the HDF-EOS profile of HDF. • Share lessons learned by the Terra Science data producers and others in applying HDF and HDF-EOS to their particular science products. • Collect feedback from HDF-EOS community to help guide our continuing efforts. HDF-EOS Workshop IV
Workshop III Action Status 1. Develop a metadata validator tool to compare metadata to the ECS data model and to the collection descriptor. STATUS: RITSS has developed a stand-alone command line tool called “metcheck” for use by data producers • Alpha today. • Beta in the next month or so. HDF-EOS Workshop IV
Workshop III Action Status 2. Publish metadata policy statements. For example, the policy for deciding when changes to collection level metadata require creation of a new collection. STATUS: A data provider and DAAC issue supported by ECS, not an HDF-EOS issue. • Becoming better understood through experience • A Data Provider’s “Software IRD” in development. • ECS science office is best source for answering questions. HDF-EOS Workshop IV
Workshop III Action Status 3. Provide a link from the HDF-EOS site to the UAH subsetter. STATUS: Done HDF-EOS Workshop IV
Workshop III Action Status 4. Investigate Polar bounding box selection errors in HDF-EOS. Either correct code or correct documentation. STATUS: Done • Some confusion attributed to user misunderstanding. • Code bug found that affected certain selections. Bug fixed. HDF-EOS Workshop IV
Workshop III Action Status 5. Update HDF-EOS web site with presentations, attendance list, etc. STATUS: Always ongoing. • Complete for WS III HDF-EOS Workshop IV
Workshop III Action Status 6. Provide a web site to showcase tools. STATUS: Always ongoing. Links from http:/hdfeos.nasa.gov/ home page: • “How Do I View HDF-EOS Files?” http://hdfeos.gsfc.nasa.gov/hdfeos/viewingHDFEOS.html • “HDF-EOS Software Information Page/ Review Listed Software and Add New Software” URL under construction. HDF-EOS Workshop IV
Workshop III Action Status 7. Develop a set of suggested attributes (units, scale factors, axis labels) STATUS: DRAFT COMPLETE • The EOS Aura Data Systems Working Group has led this effort • Cheryl Craig will present status later in this workshop. HDF-EOS Workshop IV
Workshop III Action Status 8. Provide a tool to extract information from bit fields. STATUS: No ACTION • So far, we have not noted sufficient interest in this proposed functionality to make implementation a priority. HDF-EOS Workshop IV
Workshop III Action Status 9. Provide better error messages from HDF-EOS. Make the bug tracking and fixing process more open. STATUS: Always ongoing • HDF-EOS library development team will be implementing some improvements in documentation of error codes and implementation in the next revision of HDF-EOS. HDF-EOS Workshop IV
Workshop III Action Status 10. Provide standard definition of HDF4 items using HDF5. That is, how do we use HDF5 to make the identical HDF4 item? STATUS:IN PROGRESS • NCSA (Mike Folk) has produced a paper describing this translation. Bob McGrath will present details later this morning. • A revision of the document will be forthcoming. HDF-EOS Workshop IV
Workshop III Action Status 11. Poll teams about the occurrence of hybrid HDF-EOS/HDF products. What HDF4 primitives are used? STATUS: COMPLETE • Nearly all HDF-EOS products defined to date also contain other HDF object within them. • Transition to HDF-EOS v3 will require attention of the data providers and is likely to take several years. HDF-EOS Workshop IV
Workshop III Action Status 12. Provide a clear schedule and strategy for HDF-EOS using HDF5 with recommendations for data migration and for new application development. STATUS: This Workshop will answer • HDF-EOS 3 is available in Beta today. • We will explain the design and API in the course of this workshop. • Stable release in late winter. HDF-EOS Workshop IV