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ECS Seismic Metadata Rules and Definitions


This metadata template is designed to describe a seismic dataset. A dataset is a logical grouping of files such as one or more seismic lines, a 3D data volume or a set of seismic velocity files. A dataset collection may also be determined by processing level, geographic bounds, or other parameters. The data provider or metadata author may determine the best way to aggregate the information.

SeismicMetadata: the root metadata element.

Element Type Conditionality Definition
datasetInformation Go To: datasetInformation 1 Collection level information, e.g. contacts, data quality, bounding geographic area, keywords.
acquisitionInformation Go To: acquisitionInformation 0 to 1 Information about how the data was collected, cruiseID, such as ship names, instruments and detailed acquisition details.
objectInformation Go To: objectInformation 0 to 1 Object level information, e.g. SEG-Ys, detailed line information.
metadataInformation Go To: metadataInformation 1 Metadata about this metadata file, including last update and author.

datasetInformation

Collection level information, e.g. contacts, data quality, bounding geographic area, keywords.

Element Type Conditionality Definition Example
datasetID free text 1 A unique identifier for the dataset. (Mandatory, Not repeatable) edu.utexas.ig:ew9101_01p
datasetTitle free text 1 Descriptive title for the dataset. (Mandatory, Not repeatable) EW9101 MCS Processed SEG-Y Data
datasetStartDate Go To: citationDateType 1 to * Beginning of data collection, dataset publication or revision. (Mandatory, Repeatable)
datasetDescription free text 1 General description of the dataset. A paragraph or two should highlight the characteristics that make this a logical dataset, such as the information content, date range and geographic location of the dataset. (Mandatory. Not repeatable.) This was a joint UT and Lamont-Doherty Earth Observatory program collecting a series of MCS lines in the Bransfield Strait, across the South Shetland Trench and farther south along the Antarctic margin. UTIG was responsible for the Bransfield Strait and South Shetland Trench data. Additional lines collected farther south along the margin were the responsibility of Lamont-Doherty Earth Observatory.
purpose free text 0 to 1 Brief statement of dataset objective, intended users or project goals. (Optional, Not repeatable) The goals of this data collection were to increase understanding of the following processes: Andean-type orogenesis, continental lithosphere extension in a convergent continental margin setting, ridge crest subduction, and interaction of large- offset fracture zones with convergent margins, including the uplift of subduction complexes.
supplementalInformation free text 0 to 1 Any other descriptive information about the dataset. (Optional, Not repeatable)
dataClass Go To: dataClass Vocabulary 1 Identifies the level of processing data has undergone. (Mandatory, Not repeatable) processed
dataType Go To: dataType Vocabulary 1 Kind of data differentiated by the type of receiver or source. (Mandatory, Not repeatable) Seismic:Active:MCS
processedMethod Go To: processedMethod Vocabulary 0 to * Data may be processed for reflections, refractions or velocities; For use if DataClass = Processed or Compilation. (Optional, Repeatable) Seismic:Reflection
processedDataClass Go To: processedDataClass Vocabulary 0 to * Primary classification of data processing results. (Optional, Repeatable) Stack, Migration
seismicDataProvenance Go To: seismicDataProvenance Vocabulary 1 to * Controlled vocabulary that identifies how the data was generated. (Mandatory, Repeatable) DigitalSeg:DigitallyAcquired
dataMedia Go To: dataMedia Vocabulary 1 to * The media used for dataset transfer. (Mandatory, Repeatable) Online
datasetQualityDescription free text 1 General statement of the accuracy of the datasets, any known problems or a qualitative assessment of dataset on part of contributor. If this is information is not available put in 'Unknown'. (Mandatory, Not repeatable) Unknown
datasetProcessing Go To: processingParameters 1 to * Desscriptive information of processing or lineage pertinent to the entire collection level represented.
boundingCoordinates Go To: boundingCoordinates 1 to * The limits of coverage of a data set expressed by latitude and longitude. (Mandatory, Repeatable)
geographicFeatures Go To: geographicFeatures 0 to * Names of geographic locations and undersea features associated with the dataset and a citation to the featureName authority. (Optional, Repeatable)
temporalExtent Go To: temporalExtent 0 to * Beginning and ending dates of dataset content. (Optional, Repeatable)
timeZone_GMT integer 0 to 1 Time zone of the dataset, represented as an integer with +/- hours from Greenwich Mean Time. (Optional, Not repeatable)
resourceProvider Go To: contactInformation 1 to * Contact information of person or organization that provides the dataset. (Mandatory, Repeatable) UTX-AUSTIN/IG
dataContact Go To: contactInformation 1 to * Contact information of principle investigator (chief scientist) or current responsible party of dataset. (Mandatory, Repeatable) Mutter_J
datasetAccessControl Go To: accessControl 1 to * Reference to the id of information about dataset access, access contact and, if applicable, access date. (Mandatory, Repeatable) edu.utexas.ig:ew9101_access01
projectSponsor Go To: projectSponsor 0 to * Organization that sponsored the development of dataset and award information. (Optional, Repeatable)
documentation Go To: citationInformation 0 to * Citation of dataset related documentation, such as user guides and science papers. (Optional, Repeatable)

accessControl

To identify if any one object or the entire dataset is on hold. If nothing is on hold, put "open". (Mandatory, Repeatable)

Element Type Conditionality Definition Example
accessControl/@ID free text 0 to 1 Unique identification for this access information. edu.utexas.ig:ew9101_access01
accessState Go To: accessState Vocabulary 1 Vocabulary list of restrictions for accessing the data set. "Open" is an option if there are no restrictions. (Mandatory, Not repeatable) open
accessPerson Go To: contactInformation 1 Contact for access information. (Mandatory, Not repeatable) Gahagan_L
accessReleaseDate date 0 to 1 Date when dataset or seismic data object will be released, YYYY-MM-DD. Required if any part of the dataset is restricted and useful if the dataset is already released. (Optional, Not repeatable) 2005-01-11
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boundingCoordinates

The limits of coverage of a data set expressed by latitude and longitude values in the order western-most, eastern-most, northern-most, and southern-most. (Mandatory, Repeatable)

Element Type Conditionality Definition Example
northLat decimal degrees (-90.00 to 90.00) 1 Northern-most latitude coordinate of the dataset extent expressed in decimal degrees. (Mandatory, Not repeatable) -60.3486
southLat decimal degrees (-90.00 to 90.00) 1 Southern-most latitude coordinate of the dataset extent expressed in decimal degrees. (Mandatory, Not repeatable) -69.4320
eastLong decimal degrees (-180.00 to 180.00) 1 Eastern-most longitude coordinate of the dataset extent expressed in decimal degrees. (Mandatory, Not repeatable) -55.502
westLong decimal degrees (-180.00 to 180.00) 1 Western-most longitude coordinate of the dataset extent expressed in decimal degrees. (Mandatory, Not repeatable) -79.8162
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contactInformation

Contact information of person or organization. (Mandatory, Repeatable)

Element Type Conditionality Definition Example
contactInformation/@ID free text 0 to 1 Unique identifier of contact information. Mutter_J
organization Go to: Organization Name Lists 1 to * Name of the contact organization. (Mandatory, Repeatable) Lamont-Doherty Earth Observatory
name free text or Go to: Person Name Lists 1 Contact person name. (Mandatory, Not repeatable) John C. Mutter
email free text 1 Contact email. (Mandatory, Not repeatable) jcm@ldeo.columbia.edu
role Go To: Role Vocabulary 1 Role code of contact, based on ISO 19115 controlled vocabulary. (Mandatory, Not repeatable) principalInvestigator
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citationInformation

Reference to documentation related of cited resource.

Element Type Conditionality Definition Example
citationInformation/@ID free text 0 to 1 Unique identifier of the cited resource. (Optional, Not Repeatable) edu.utexas.ig._001
author free text 1 to * Name of the individual that developed the data set or authored the resource. (Mandatory, Repeatable) GEBCO Sub-Committee on Undersea Feature Names
title free text 1 to 1 Name by which the cited resource is known (ISO 19115) (Mandatory, Not repeatable) IHO-IOC GEBCO Gazetteer
citationDate Go To: citationDateType 1 to * (Mandatory, Repeatable) date: 2007, dateTypeCode: published
journalName free text 0 to 1 Name of journal where cited resource is published. (Optional, Not repeatable)
page free text 0 to 1 Journal pages of cited resource. (Optional, Not repeatable)
volume free text 0 to 1 Journal volume. (Optional, Not repeatable)
doi free text 0 to 1 Digital Object Identifier of cited resource. (Optional, Not repeatable)
dataReportFileName free text 0 to 1 File name of cited object. (Optional, Not repeatable)
onlineLinkage free text 0 to 1 URL to remote location or publication of cited resource. (Optional, Not repeatable) http://www.gebco.net/data_and_products/undersea_feature_names/documents/gazet_sept2007.xls
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citationDateType

abstract element that is utilized in multiple places (meaning that this field does not appear anywhere in the xml file, but the sub-fields below do)

Element Type Conditionality Definition Example
date date 1 Single value encoded as YYYY, YYYYMM or YYYYMMDD. 1991-02-01
dateTypeCode Go To: dateTypeCode Vocabulary 1 Controlled vocabulary that classifies the "type of date", e.g. creation represents start of data collection, publication represents when the data was made available to the public, revision represents when the data was revised or reprocessed. creation
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geographicFeatures

Names of geographic locations associated with the dataset and a citation to the featureName authority. (Optional, Repeatable)

Element Type Conditionality Definition Example
featureName Go to: Feature Name Lists 1 to * Name of geographic feature, specific location or area. South Pacific Ocean
featureAuthority Go To: citationInformation 0 to 1 Citation of publication of geographic names or Gazetteer, for example, the IHO of Undersea Feature Names. (Optional, Not repeatable)
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processingParameters

Processing parameters for the dataset or seismicDataObject. With an attribute that has the unique identifier for this set of processing parameters.

Element Type Conditionality Definition Example
processingScope Go To: processingScope Vocabulary 1 Defines whether the processing was for the dataset or the dataObject. (Mandatory, Not repeatable) dataset
parentDataset/@ID free text 0 to * Identifier of the processed data set that served as parent or field dataset for processing. (Optional, Repeatable) org.marine-geo:EW9101_parent001
processingStep free text 1 Description of processing performed on the dataset or object. (Mandatory, Not repeatable) UTIG: Data processing used CG and G's Geovecteur software. CMPs for stacking were calculated from a mean distance between shots for each line segment. Some processing histories are in the UTIG archive. LDEO: MCS in house processing. For all files: edit traces, timing correction, outside mute, normal move out and stack.
processingStepDate date 0 to 1 Date of process step action. (YYYY-MM-DD) (Optional, Not repeatable)
processContact Go To: contactInformation 0 to 1 Contact information of person who performed the processing. (Optional, Not repeatable)
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projectSponsor

Organization that sponsored the development of dataset and award information. (Optional, Repeatable)

Element Type Conditionality Definition Example
projectSponsor/@ID free text 0 to 1 ID associated with project sponsor (Optional, Not Repeatable) gov.nsf:OCE94-18135
organization Go to: Organization Name Lists 0 to * (Optional, Repeatable) National Science Foundation
awardTitle free text 1 (Mandatory, Not repeatable) The Pacific Margin of the Antarctic Peninsula: A Marine Geophysical Study of the Tectonic Evolution of Andean-Type Orogen
awardNumber free text 0 to 1 (Optional, Not repeatable) 8916436
awardDate Go To: citationDateType 1 to * (Mandatory, Repeatable)
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temporalExtent

Beginning and ending dates of dataset content. (Optional, Repeatable)

Element Type Conditionality Definition Example
startDate date 1 Single value encoded as YYYY, YYYY-MM or YYYY-MM-DD.(Mandatory, Not repeatable) 2009-01-01
endDate date 1 Single value encoded as YYYY, YYYY-MM or YYYY-MM-DD.(Mandatory, Not repeatable) 2009-12-12
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acquisitionInformation

Information about how the data was collected, e.g. specific acquisition details, devices, ships, seismic stations.

Element Type Conditionality Definition
acquisitionParameters Go To: acquisitionParameters 1 to * Reference to id for acquisition parameters used to gather the seismic data. (Optional, Repeatable)
platformInformation Go To: platformInformation 0 to * Ship Name and responsible organization. Note: this could be apply to other types of platforms. (Optional, Repeatable)
fieldActivity Go To: fieldActivity 0 to * (Optional, Repeatable)
seismicStation Go To: seismicStation 0 to * Name of OBS or sonobuoy associated with an SDO. (Optional, Repeatable)
seismicNavFile Go To: seismicNavFile 0 to * Description of the Seismic navigation at time of acquisition (Optional, Repeatable)
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acquisitionParameters

Details of seismic data collection. (Optional, Repeatable)

Element Type Conditionality Definition Subbottom Example Multichannel Example
acquisitionParameters/@ID free text 1 Unique id of this acquisition information. If there is more than one acquisition configuration for an expedition then a new table should be created. edu.columbia.ldeo:MGL0801_ACQxxx gov.usgs.cmg:S-8-07-SC_ACQxxx
fieldActivity/@ID free text 0 to * Unique identifier of the field data acquisition program associated with the data set. (Optional, Repeatable) S-8-07-SC MGL0801
receiverType Go To: deviceType Vocabulary 1 Type of receiver used to detect the arrival of seismic waves.(Mandatory, Not repeatable) CHIRP Hydrophone_Streamer
sourceType Go To: deviceType Vocabulary 1 Type of source used to generate seismic waves. (Mandatory, Not repeatable) CHIRP SeismicSource_Gun_Air
acquisitionSystemName free text 0 to 1 Vendor name for the data acquisition system used to record the seismic signals. (Optional, Not repeatable)
acquisitionSystemType Go To: acquisitionSystemType Vocabulary 1 Signal may be recorded in Digital or Analog form. (Mandatory, Not repeatable) Digital Digital
seismicNavSystem free text 0 to 1 Navigation system used as primary source of positioning information for the data set. (Optional, Not repeatable) Yonav (USGS) POS-MV (primary), SeaPath
surveyDatum Go To: surveyDatum Vocabulary 0 to 1 Geodetic reference system used for seismic survey. (Optional, Not repeatable) WGS84 WGS84
sourceToNearChannel_inMeters decimal 0 to 1 Distance between the sound source and the nearest channel or hydrophone group in receiver cable. (Optional, Not repeatable) 0 42
antennaToSource_inMeters decimal 0 to 1 Distance between the GPS antenna and sound source. (Optional, Not repeatable) 18 62
numberOfChannelsRecorded integer 0 to 1 Total number of channels (or hydrophone groups) recorded. Corresponds to sum of all channels on all cables. (Optional, Not repeatable) 3 1824
numberOfCables integer 0 to 1 Number of receiver cables or streamers used in survey. (Optional, Not repeatable) n/a 3
numberOfChannelsEachCable integer 0 to 1 Number of receiver channels (or hydrophone groups) on each cable or streamer. (Optional, Not repeatable) n/a 456
channelLength_inMeters decimal 0 to 1 Length of hydrophone group composing one channel. (Optional, Not repeatable) n/a 12.5
cableLength_inMeters decimal 0 to 1 Length of receiver cable or streamer. (Optional, Not repeatable) n/a 6000
cableSpacing_inMeters decimal 0 to 1 Separation between cables for 3D operations. (Optional, Not repeatable) n/a 150
nearChannelNumber integer 0 to 1 Number of the receiver channel located nearest the sound source. (Optional, Not repeatable) n/a 468
cableReceiverDepth_inMeters decimal 0 to 1 Nominal depth of the streamer cable or receiver. For Subbottom, this is the same value as sourceDepth. (Optional, Not repeatable) 2 9
cableReceiverDepthRecorded Go To: yesNo Vocabulary 0 to 1 Yes, If the depth of the streamer cable or receiver is recorded and no, if it is not. Note: this only pertains to digital recording, for example, SEG-D field trace headers. (Optional, Not repeatable)
numberSourceArrays integer 0 to 1 Useful for 3D operations where 2 source arrays are shot alternately. This is not the number of linear gun strings that comprise the source. Number of sources = 1 if all guns were fired simultaneously. Number of source arrays = 2 if the source was fired as 2 arrays fired alternately. (Optional, Not repeatable) 1 1
flipFlopShooting Go To: yesNo Vocabulary 0 to 1 Yes or No. Depending on whether two source arrays were fired alternately. (Optional, Not repeatable) No
sourceArraySeparation_inMeters decimal 0 to 1 If the source is configured as 2 arrays fired alternately, this number is the separation (in meters) between the arrays. Used for 3D operations and potentially 2D operations. (Optional, Not repeatable) n/a n/a
sourceVolume decimal 0 to 1 Total volume of compressed air/water bubble released by source array. (Optional, Not repeatable) n/a 54077.31
sourceVolumeUnits Go To: sourceVolumeUnits Vocabulary 0 to 1 The units of the source volume. (Optional, Not repeatable) n/a cubicCentimeters
sourcePressure_inBars decimal 0 to 1 Total pressure exerted by the source. (Optional, Not repeatable) n/a 131.0003
sourceNumber integer 0 to 1 Number of air/water/GI guns used in the source array. (Optional, Not repeatable) n/a 18
sourceDepth_inMeters decimal 0 to 1 Depth at which the source is towed. (Optional, Not repeatable) 2 6.5
shotControl Go To: shotControl Vocabulary 0 to 1 Source shots are fired at regular intervals of either time or distance. (Optional, Not repeatable) time time
shotInterval_inSecondsOrMeters decimal 0 to 1 Time or distance interval between shots. (Optional, Not repeatable) 0.25 10
sampleInterval_inMicroseconds integer 0 to 1 Sampling interval for seismic recording. (Optional, Not repeatable) 62 2000
sweepFrequency free text 0 to 1 For Chirp systems - the manufacturer specified min/max frequency range of the emitted source signal. (Optional, Not repeatable) 500 Hz to 3.5 kHz and 30 millisecond window n/a
recordLength_inSeconds decimal 0 to 1 Total length of the recorded seismic trace in time. (Optional, Not repeatable) 300 8192
compassBirds Go To: yesNo Vocabulary 0 to 1 Yes if compass birds were used on the steamer cable. (Optional, Not repeatable) n/a yes
tailBuoyPositioning Go To: yesNo Vocabulary 0 to 1 Yes if the tail buoy on end of streamer cable had an active GPS for positioning. (Optional, Not repeatable) n/a yes
recordingDelay Go To: yesNo Vocabulary 0 to 1 Yes if the beginning of data recording is delayed for a specified time interval after each shot. Used for example in older generation seismic surveys in deep water settings to exclude the water column. (Optional, Not repeatable) no no
sourcePowerSetting free text 0 to 1 Power setting of seismic source - used for high frequency subbottom systems. (Optional, Not repeatable) 500 joules n/a
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platformInformation

Ship Name and responsible organization. Note: this could be apply to other types of platforms, as well. (Optional, Repeatable)

Element Type Conditionality Definition Example
platform Go to: Platform Name Lists 1 Name of the ship or other type of vessel from which the instrument device was aboard. Best Practice is to use an externally supported vocabulary list. (Mandatory, Not repeatable) Maurice Ewing
platformOrganization Go to: Organization Name Lists 1 Platform operator (not owner). (Mandatory, Not repeatable) LDEO
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seismicNavFile

If available, description of the navigation file associated with the collection or a seismic object.

Element Type Conditionality Definition Example
seismicNavFile/@ID free text 0 to 1 Identifier attribute of navigation file. The unique ids are internally controlled by data provider. (Optional, Not repeatable) ar54.5558.ew9101.sap02.stack.ploc
associatedSeismicLine/@IDREF Reference ID, must match ID of referenced seismic line 0 to * Reference to seismic line ID associated with the navigation file. Unique ids that are internally controlled by data provider. (Optional, Repeatable) sap02
surveyDatum Go To: surveyDatum Vocabulary 0 to 1 (Optional, Not repeatable) WGS84
offsetsApplied Go To: offsetsApplied Vocabulary 1 Offset corrections associated with the navigation system and processing procedures, or of the geographic position of the seismic traces. (Mandatory, Not repeatable) yes
dataFileFormat Go To: dataFileFormat Vocabulary 1 File format of the seismic navigation file. Note: TAR and Zip are not formats - they are a compression. (Mandatory, Not repeatable) Text
details free text 0 to 1 Free text field for further descriptions about the navigation or the navigation file. (Optional, Not repeatable) Used navigation table relating CMPs to latitude/longitude. Then interpolated latitude/longitude to other CMPs. Positions are the latitude/longitude of the center of the particular cdp bin.
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seismicStation

OBS or sonobuoy associated with dataset or seismic data object. (Optional, Repeatable)

Element Type Conditionality Definition Example
seismicStation/@ID free text 0 to 1 Unique ID of this seismic station information. (Optional) edu.utexas.ig:fm3001_stn-01
stationName free text 0 to 1 Name of station. (Optional, Not repeatable) stn-01
deviceID free text 0 to 1 Identification of seismic station device (Optional, Not repeatable) Seismometer_OceanBottomCable
orientation Go To: orientation Vocabulary 0 to 1 Are horizontal components oriented by rotation? Yes, No, or Undocumented. (Optional, Not repeatable) no
latitude decimal value between -90.00 and 90.00 0 to 1 Longitude position of station in decimal degrees.(Optional, Not repeatable) 27.611
longitude decimal value between -180.00 and 180.00 0 to 1 Longitude position of station in decimal degrees. (Optional, Not repeatable) -94.114972
delayType free text 0 to 1 Specify whether this is the standard SEG-Y specified format with 16 bits in byte 109 or a specialized format (sometimes used by UTIG) with 32 bits in byte 107. (Optional, Not repeatable) 16 bit
maximumOffset1 decimal 0 to 1 Maximum shot distance on side 1 from OBS, in meters. (Optional, Not repeatable) -16094
maximumOffset2 decimal 0 to 1 Maximum shot distance on side 2 from OBS, in meters. (Optional, Not repeatable) 16495
seismicStationTrace Go To: seismicStationTrace 0 to *

seismicStationTrace

Element Type Conditionality Definition Example
traceNumber integer 1 (Mandatory, Not repeatable) 1
traceDataType Go To: traceDataType Vocabulary 1 (Mandatory, Not repeatable) horizontal
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objectInformation

Object level information, e.g. SEG-Ys, detailed line information.

Element Type Conditionality Definition
seismicLine Go To: seismicLine 0 to * (Optional, Repeatable)
seismicDataObject Go To: seismicDataObject 1 to * A seismic data file (e.g. a SEG-Y) (Optional, Repeatable)
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seismicLine

Unique identifier for seismic line. Identifier value is controlled internally by data providers.

Element Type Conditionality Definition Example
seismicLine/@ID free text 1 Unique identifier for seismic line. Identifier value is controlled internally by data providers. (Optional, Repeatable) sap02
startLat decimal degrees (-90.00 to 90.00) 0 to 1 Beginning latitude coordinate of seismic line expressed in decimal degrees. (Optional, Not repeatable) -66.7363
stopLat decimal degrees (-90.00 to 90.00) 0 to 1 Ending latitude coordinate of seismic line expressed in decimal degrees. (Optional, Not repeatable) -65.8171
startLong decimal degrees (-180.00 to 180.00) 0 to 1 Beginning longitude coordinate of seismic line expressed in decimal degrees. (Optional, Not repeatable) -69.3384
stopLong decimal degrees (-180.00 to 180.00) 0 to 1 Ending longitude coordinate of seismic line expressed in decimal degrees. (Optional, Not repeatable) -71.8139
startDateTime Date and Time 0 to 1 First date and time of seismic line. (Optional, Not repeatable) 1991-03-02T00:00:00
endDateTime Date and Time 0 to 1 Last date and time of seismic line. (Optional, Not repeatable) 1991-03-03T00:00:00
shotOrCmpStart integer 0 to 1 (Optional, Not repeatable) 1
shotOrCmpStop integer 0 to 1 (Optional, Not repeatable) 2923
recordLength_inSeconds decimal 0 to 1 Total length of the recorded seismic trace in time. (Optional, Not repeatable) 16
sampleInterval_inMicroseconds decimal 0 to 1 (Optional, Not repeatable) 4000
lineAcquisitionParameters/@IDREF Reference ID, must match ID of referenced acquisitionParameters. 0 to 1 Reference to the ID of data collection details that apply to a particular seismic line. (Optional, Not repeatable) edu.utexas.ig:ew9101_001
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seismicDataObject

A seismic data file (e.g. a SEG-Y) (Optional, Repeatable)

Element Type Conditionality Definition Example
seismicDataObject/@ID free text 0 Unique Identifier of the seismic data object file. ar41.0015.ew9101.ap-02.stack.segy
objectSeismicLine/@IDREF Reference ID, must match ID of referenced SeismicLine. 0 to * Identifier reference to seismic line associated with a seismic data object. Either, objectSeismicLine or seismicStation should be populated. The ID is enforced by data providers. (Optional, Repeatable) sap02
alternateLineName free text 0 to * (Optional, Repeatable) 1069
seismicStation/@IDREF Reference ID, must match ID of referenced seismicStation. 0 to * Reference to the id of seismic station information (for OBS or sonobuoy) associated with a seismic data object. (Optional, Repeatable) edu.texas.ig:EW9204_xxx
dataMedia Go To: dataMedia Vocabulary 1 to * Media of the data object.(Mandatory, Repeatable) Online
dataFileFormat Go To: dataFileFormat Vocabulary 1 Format of digital file. (Mandatory, Not repeatable) SEGY
embeddedNavigation Go To: yesNo Vocabulary 1 Indicates whether the navigation information is included in the seismic data object file header. (Mandatory, Not repeatable) yes
seismicNavFile Go To: seismicNavFile 0 to * Navigation file that corresponds with this data object. There may not always be a navigation file, e.g. for a data compilation represented as one xml element with structured text. (Optional, Repeatable) ar54.5558.ew9101.sap02.stack.ploc
seismicDataProvenance Go To: seismicDataProvenance Vocabulary 0 to * Controlled vocabulary that identifies how the data was generated. (Optional, Repeatable) DigitalSeg:DigitallyAcquired
processedDataClass Go To: processedDataClass Vocabulary 0 to * stack
dataObjectProcessing Go To: processingParameters 0 to * Descriptive processing information for a data object, This information is intended to describe unique processing information for each seismic data object. (Optional, Repeatable) edu.utexas.ig:ew9101:ar54.5558_01
processingDocument free text 0 to * Reference to more documentation that captures the processing/lineage in more detail. (Optional, Repeatable) ar54.5558.hst (e.g., jpeg of sidepanel, sioseis script, program flow)
objectAccessControl Go To: accessControl 1 Access control information for the data object, if the access is the same for the entire dataset then you can re-use the dataset access information. (Mandatory, Not repeatable) edu.utexas.ig:ew9101_access01
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metadataInformation

Metadata about this metadata file, e.g last update date and author.

Element Type Conditionality Definition Example
metadataDate date 1 Date when metadata was created or last updated. Recorded as YYYY-MM-DD. (Mandatory, Not repeatable) Date: 2008-10-15
metadataContact Go To: contactInformation 1 Contact information of person who wrote the metadata. (Mandatory, Not repeatable)
metadataStandard free text 1 Name and version of the standard used to document the dataset. (Mandatory, Not repeatable) Seismic Metadata verson 1.0
dateOfSubmission date 1 Date of dataset submission to the archive data center. Must be formatted as YYYY-MM-DD. (Mandatory, Not repeatable) 2005-01-11