HR: 08:15h
AN: SF11A-02    [Abstracts]
TI: Developing the CUAHSI Metadata Profile
AU: * Piasecki, M
EM: Michael.Piasecki@drexel.edu
AF: Drexel University, 3141 Chestnut Street, Philadlephia, PA 19104 United States
AU: Bermudez, L
EM: leb27@drexel.edu
AF: Drexel University, 3141 Chestnut Street, Philadlephia, PA 19104 United States
AU: Islam, S
EM: asi22@drexel.edu
AF: Drexel University, 3141 Chestnut Street, Philadlephia, PA 19104 United States
AU: Beran, B
EM: Bora.Beran@drexel.edu
AF: Drexel University, 3141 Chestnut Street, Philadlephia, PA 19104 United States
AB: The Hydrologic Information System (HIS), of the Consortium of Universities for the Advancement of Hydrologic Science Inc., (CUAHSI), has as one of its goals to improve access to large volume, high quality, and heterogeneous hydrologic data sets. This will be attained in part by adopting a community metadata profile to achieve consistent descriptions that will facilitate data discovery. However, common standards are quite general in nature and typically lack domain specific vocabularies, complicating the adoption of standards for specific communities. We will show and demonstrate the problems encountered in the process of adopting ISO standards to create a CUAHSI metadata profile. The final schema is expressed in a simple metadata format, Metadata Template File (MTF), to leverage metadata annotations/viewer tools already developed by the San Diego Super Computer Center. The steps performed to create an MTF starting from ISO 19115:2003 are the following: 1) creation of ontologies using the Web Ontology Language (OWL) for ISO:19115 2003 and related ISO/TC 211 documents; 2) conceptualization in OWL of related hydrologic vocabularies such as NASA's Global Change Master Directory and units from the Hydrologic Handbook; 3) definition of CUAHSI profile by importing and extending the previous ontologies; 4) explicit creation of CUAHSI core set 5) export of the core set to MTF); 6) definition of metadata blocks for arbitrary digital objects (e.g. time series vs static-spatial data) using ISO's methodology for feature cataloguing; and 7) export of metadata blocks to MTF.
DE: 1899 General or miscellaneous
DE: 1848 Networks
DE: 1854 Precipitation (3354)
DE: 1860 Runoff and streamflow
SC: Special Focus: Advances in Data Acquisition, Management, Analysis and Display [SF]
MN: 2004 AGU Fall Meeting