f25dcbb46b18608d65d8cc8ad8327c1b.ppt
- Количество слайдов: 18
MGDS PROJECT OVERVIEW AND SAMPLE METADATA MGDS Project Overview and Sample Metadata (Arko) 1 of 18 PROJECT TEAM: Joyce Alsop * Robert Arko Suzanne Carbotte (lead) Dale Chayes John Diebold Vicki Ferrini Andrew Goodwillie * Kerstin Lehnert Andrew Melkonian Suzanne O’Hara William Ryan R. A. Weissel SESAR–IGSN Workshop (February 26 -27, 2007)
OUTLINE 1. PROJECT OVERVIEW 2. CURRENT HOLDINGS 3. DATA MODEL 4. METADATA SUBMISSION 5. CHALLENGES MGDS Project Overview and Sample Metadata (Arko) 2 of 18 SESAR–IGSN Workshop (February 26 -27, 2007)
OVERVIEW: MISSION STATEMENT Design and maintain an integrated data repository for MG&G communities: • Ridge 2000 Program • MARGINS Program • U. S. Antarctic Program • Legacy - Multibeam Synthesis • Seismic Reflection Joint funding from NSF OCE + EAR + OPP MGDS Project Overview and Sample Metadata (Arko) 3 of 18 SESAR–IGSN Workshop (February 26 -27, 2007)
OVERVIEW: SCOPE AND PARTNERS Data from marine and terrestrial realms Data from all disciplines - biological, physical, chemical, geological Project partners: • WHOI (Ridge 2000 Program) • TAMU (MARGINS Program) • RPSC (U. S. Antarctic Program) • NGDC, CCOM (Legacy - Multibeam Synthesis) • UTIG (Seismic Reflection) Collaborative partners: • DLESE (education modules) • MMI (community/ontology development) • SESAR (sample registration) MGDS Project Overview and Sample Metadata (Arko) 4 of 18 SESAR–IGSN Workshop (February 26 -27, 2007)
OVERVIEW: SCIENTIFIC RATIONALE • Ensure ability to verify research results • Preserve expensive/unique/unrepeatable data • Supplement traditional publication methods • Facilitate cross-disciplinary research • Increase data availability to non-specialists • Enable automated analysis + synthesis MGDS Project Overview and Sample Metadata (Arko) 5 of 18 SESAR–IGSN Workshop (February 26 -27, 2007)
OVERVIEW: SYSTEM COMPONENTS PRODUCTS • Metadata catalog (1500+ collections) • Data repository (210, 000+ files total 5+ TB - partnership with SDSC) • Global syntheses (e. g. multi-resolution DEM) SERVICES • Web portals (search + download) • Geo. Map. App® (integrate + visualize data from multiple sources) • Web services (OAI, OGC, etc. ) MGDS Project Overview and Sample Metadata (Arko) 6 of 18 SESAR–IGSN Workshop (February 26 -27, 2007)
CURRENT HOLDINGS: SOLID EARTH SAMPLES 50 NEW DATA SETS OVER 3500 SAMPLES (growing rapidly…) MGDS Project Overview and Sample Metadata (Arko) 7 of 18 SESAR–IGSN Workshop (February 26 -27, 2007)
DATA MODEL: MULTIPLE WEB PORTALS TO SERVE DIFFERENT COMMUNITIES SINGLE INTEGRATED DATABASE BACKEND : : MGDS Project Overview and Sample Metadata (Arko) 8 of 18 SESAR–IGSN Workshop (February 26 -27, 2007)
DATA MODEL: COLLECTION (registration = ? ) • Field • Observatory • Expedition • Derived COLLECTION SET (registration = STD-DOI) • group of data objects having common provenance OBJECT (registration = IGSN) • Data File • Real-time • Processed • Sample MGDS Project Overview and Sample Metadata (Arko) 9 of 18 SESAR–IGSN Workshop (February 26 -27, 2007)
DATA MODEL: COLLECTION METADATA related collections collection aliases (at other repositories) platform/operator funding agency/awards project titles/urls science party (field + lab personnel) lat/lon bins location (physio features, place names) supporting documents (cruise reports etc. ) references (citations) MGDS Project Overview and Sample Metadata (Arko) 10 of 18 SESAR–IGSN Workshop (February 26 -27, 2007)
DATA MODEL: ACQUISITION EVENTS 1. LAUNCH (independent, navigated) • daughter platforms e. g. Submersible, Drone, Small Boat 2. LINE (navigated) • towed platforms e. g. Camera, MCS, Tow. Yo 3. STATION (only start/stop) 1. lowered platforms e. g. Core, Grab, CTD, BLISP 2. towed platforms e. g. Dredge, Net 3. deployed platforms e. g. OBS, Marker, Float, Probe Events can be nested 1. (e. g. Dive > Station) MGDS Project Overview and Sample Metadata (Arko) 11 of 18 SESAR–IGSN Workshop (February 26 -27, 2007)
collection_id DATA MODEL: SAMPLE METADATA sample_id sample_name (investigator’s pet name) parent_id data_type (e. g. “Rock Sample”) sample_type (e. g. “Igneous: Volcanic: Mafic”) launch_id line_id station_id ---> station_type (e. g. “Bottom: Towed”) + station_platform (e. g. “Dredge”) start_date start_longitude/latitude/elevation stop_date stop_longitude/latitude/elevation navfix_type local_origin/units (e. g. for dive programs) start_local_x/y stop_local_x/y location_id (physiographic feature) tectonic_setting (e. g. “Back-Arc Basin”) investigator_id contact_id contributor_id repository_id (holds authoritative metadata) facility_id (holds physical sample) other/details MGDS Project Overview and Sample Metadata (Arko) 12 of 18 SESAR–IGSN Workshop (February 26 -27, 2007)
collection_id collection_type data_type device_type dive_type feature_id feature_type format_id initiative_id language_id launch_platform_type launch_type line_platform_type line_type location_id nav_type organization_id person_id platform_type role_id role_type station_platform_type station_type status_id DATA MODEL: CONTROLLED VOCABULARIES (both types and identifiers) (and still growing…) MGDS Project Overview and Sample Metadata (Arko) 13 of 18 SESAR–IGSN Workshop (February 26 -27, 2007)
METADATA SUBMISSION: POLICY Records made public immediately: • people/projects/awards • primary navigation • catalog of acquisition events • catalog of data sets • catalog of samples MGDS Project Overview and Sample Metadata (Arko) 14 of 18 SESAR–IGSN Workshop (February 26 -27, 2007)
METADATA SUBMISSION: FORMS 1. Contact chief scientist in advance designate science party liaison 2. Follow up with liaison (60 days) 3. Register/submit data sets to appropriate partner repositories MGDS Project Overview and Sample Metadata (Arko) 15 of 18 SESAR–IGSN Workshop (February 26 -27, 2007)
METADATA SUBMISSION: FORMS Example: Sediment Cores (based on LDEO Repository log sheet) MGDS Project Overview and Sample Metadata (Arko) 16 of 18 SESAR–IGSN Workshop (February 26 -27, 2007)
CHALLENGES: 1. Metadata form submission • completeness • consistent identifiers and formats 2. Globally unique identifiers 3. Evolving/shared vocabularies • Physiographic Feature (gazetteer + local features e. g. Vents) • Tectonic Setting • Sample Type (domain specific) • Station Platform/Type MGDS Project Overview and Sample Metadata (Arko) 17 of 18 SESAR–IGSN Workshop (February 26 -27, 2007)
Questions? _______ marine – geo. org MGDS Project Overview and Sample Metadata (Arko) 18 of 18 SESAR–IGSN Workshop (February 26 -27, 2007)