Fields in the Euroseismic Meta-database The Euroseismic database and supply format is quite different from the EUMARSIN/EUROCORE and therefore it has its own metadata section. Based on the tables from the metadatahandbook a table has been created below. This table gives an overview on all data to be supplied and the format. It has a few amendments compared to the metadatahandbook as a result of practical testing. The supply format and procedure is explained in the Meta-data format (download) section. Survey Metadata Red is search field! Mandatory Fieldname Format Description Survey_id Free txt Internal code for the survey within the institute. If the survey is also known by other codes, these can be entered as Survey ID Aliases. Project EUROCOREEUMARSINEUROSEISMIC Reserved MARIS word. EUROSEISMIC will be added to EUROCORE and EUMARSIN. Year yyyy Start year of the survey. Positioning_method Differential GPS GPS Transit Satellite Omega Loran Decca Main Chain Decca Hifix Pulse8 Syledis Other radio navigation Radar Dead reckoning Celestial Unknown Positioning method(s) used during the survey. Data_types G24 Long/short range side-scan sonar G26 Seismic refraction G27 Gravity measurements G28 Magnetic measurements G73 Single-beam echosounding G74 Multi-beam echosounding G75 Single-channel seismic reflection G76 Multi-channel seismic reflection Generic data type(s) available for the survey. Data_holder Geological Survey of Ireland British Geological Survey Geological Survey of Norway Geological Survey of Sweden Geological Survey of Finland Bundesanstalt Geowissenschaften und Rohstoffe Denmark Greenland Geological Survey Netherlands Institute of Applied Geoscience-TNO NITG Bureau de Recherche Géologique et Minières Geological Survey of Belgium Institut Francais de Recherche por l'Exploitation de la Mer Instituto Technologico Geominero de Espana Instituto Geologico e Mineiro Servizio Geologico Nazionale Institute of Geology and Mineral Exploration The institute that holds the data. The address can include the division/group/laboratory if necessary. A non-mandatory contact and e-mail address can also be supplied. Metadata_provider Geological Survey of Ireland British Geological Survey Geological Survey of Norway Geological Survey of Sweden Geological Survey of Finland Bundesanstalt Geowissenschaften und Rohstoffe Denmark Greenland Geological Survey Netherlands Institute of Applied Geoscience-TNO NITG Bureau de Recherche Géologique et Minières Geological Survey of Belgium Institut Francais de Recherche por l'Exploitation de la Mer Instituto Technologico Geominero de Espana Instituto Geologico e Mineiro Servizio Geologico Nazionale Institute of Geology and Mineral Exploration The institute that submitted the metadata to Euroseismic. The address can include the division/group/laboratory if necessary. A non-mandatory contact and e-mail address can also be supplied. Measuring_area_type Free text Geometry used to define the survey data in the GIS: most surveys will be defined as either Line or Polygon, but some surveys may consist of both. Optional Fieldname Format Description Survey_id_alias Free text Synonym(s) by which the survey is also known. Coverage Free text Area of the survey. General geographic description of the survey's location. Survey_report_native Free text Original title of survey report, or other document(s) describing the survey. Survey_report_english Free text Title of survey report in English. Data_contact_name Free text Name of a contact(s) within the institute that holds the survey data who can answer enquiries regarding the data. Data_contact_email only e-mailaddress, so: person.name@host.com E-mail of the data contact. Metadata_contact_name Free text Name of a contact(s) within the institute that submitted the metadata to Euroseismic who can answer enquiries regarding the metadata. Metadata_contact_email only e-mailaddress, so: person.name@host.com E-mail of the metadata contact Acknowledgement Free text Additional information on institutes, companies or individuals relevant to data ownership, acquisition, processing, archiving or use. Vessel Free text Name of survey vessel(s). Period start yyyymmdd From [date] Period_end yyyymmdd to [date] Description Free text (Memo) Additional technical information related to the survey, for example, details of the survey /navigation system(s) /instrument(s) /recording parameters. This information can be used to assess the quality of the data. Polygon Metadata Mandatory Fieldname Format Description Polygon_id Free text Internal code for the line within the institute. If the line is also known by other IDs, these can be entered in the Polygon ID Aliases field Equipment_type Airgun Watergun Sparker Boomer Pinger Single beam echo sounder Multibeam echo sounder Side-scan sonar Chirp Parametric Gravity meter Magnetometer Refraction Unknown Equipment type(s) used in the polygon. Freq_indicator <10 Hz 10 - 150 Hz 150 Hz - 1 kHz 1 - 10 kHz >10 kHz The frequency band of the source for each seismic equipment type. This provides a simple indication of the resolution and penetration of the data. This data can either be submitted by the institute or generated automatically by MARIS. Channels 3D multi-channel 2D multi-channel Single channel Indicator for single channel or multichannel for each seismic equipment type. Output_format Paper Scanned image Microfilm/fiche Digital Output format(s) for each dataset Polygon_datum Free text This has to be WGS 84, but as a check this has to be supplied. Coordinates Geographic coordinates in WGS 84. Latitude, longitude pairs in decimal degrees. Positive values indicate North and East, negative values indicate South and West. List of coordinates defining the perimeter of the polygon at the vertices. MARIS will then use these coordinates to generate the polygons. The GIS shapes derived from the coordinates will be searchable. Optional Fieldname Format Description Polygon_id_alias Free text Synonym(s) for the Polygon ID. Record_length Numeric, Time in seconds (two-way-time) Maximum recording time for the deepest penetrating seismic equipment type used in the polygon. Line Metadata Mandatory Fieldname Format Description Line_id Free text Internal code for the line within the institute. If the line is also known by other IDs, these can be entered in the Line ID Aliases field (see below). Equipment_type Airgun Watergun Sparker Boomer Pinger Single beam echo sounder Multibeam echo sounder Side-scan sonar Chirp Parametric Gravity meter Magnetometer Refraction Unknown Equipment type(s) used on the line. Freq_indicator <10 Hz 10 - 150 Hz 150 Hz - 1 kHz 1 - 10 kHz >10 kHz The frequency band of the source for each seismic equipment type. This provides a simple indication of the resolution and penetration of the data. This can either be submitted by the institute or generated automatically by MARIS. Channels 3D multi-channel 2D multi-channel Single channel Indicator for single channel or multichannel for each seismic equipment type. Output_format Paper Scanned image Microfilm/fiche Digital Output format(s) for each dataset Coordinates Geographic coordinates in WGS 84. Latitude, longitude pairs in decimal degrees. Positive values indicate North and East, negative values indicate South and West. List of coordinates defining a survey line. Ends and bends only to reduce storage requirement. The GIS shapes derived from the coordinates will be searchable. Optional Fieldname Format Description Line_id_alias Free text Synonym(s) for the Line ID. Record_length Numeric, Time in seconds (two-way-time) Maximum recording time for the deepest penetrating seismic equipment type used on the line.