restrictions for accessing the data set
| Vocabulary |
Definition |
| delay |
public access to the data has been delayed (e.g., PI may still be working on data) |
| open |
pubic has unrestricted access to data |
| openpartial |
public has unrestricted access to only some of the data; access to remaining data may be restricted or delayed |
| restricted |
public does not have access to the data; these data may be proprietary |
system type
| Vocabulary |
| analog |
| digital |
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describes the level of processing data has undergone
| Vocabulary |
Definition |
| compilation |
collection of different types/classes of data (e.g., fledermaus scene, movie of 3D volume, geoquest project) |
| field |
untouched or minimally field processed (e.g., word or media formatting, header additions); includes unprocessed SCS, CHIRP, 3.5 kHz |
| processed |
any irreversible processing or header manipulation |
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format of digital file
| Vocabulary |
Definition |
| MB System |
generic multibeam file type |
| _raw.all |
SIMRAD file type for multibeam |
| BMP |
standard Bit-mapped graphic format |
| DOC |
format used for text documents by Microsoft Word |
| Fledermaus |
output from Fledermaus interactive 3D data visualization system |
| GIF |
Graphics Interchange Format, a bitmap image format |
| HTML |
HyperText Markup Language, the predominant markup language for Web pages |
| JPEG |
Joint Photographic Experts Group, method of compression for photographic images |
| KEB |
Knudsen Binary format |
| KMZ |
zipped KML files with a .kmz extensionm, for Google Earth or Map applications |
| KML |
Keyhole Markup Language, an XML-based language schema for expressing geographic annotation and visualization in Google Earth or Map applications |
| MOV |
QuickTime file format |
| P1/90 |
UKOAA post plot positioning data format |
| P2 |
UKOOA data exchange format designed to record positioning data for both 2D and 3D seismic surveys |
| PDF |
Portable Document Format |
| PNG |
Portable Network Graphics format |
| PostScript |
dynamically typed concatenative programming language known for its use as a page description language in the electronic and desktop publishing areas |
| SEGB |
a type of original acquired format for seismic data developed by the Society of Exploration Geophysicists |
| SEGY |
a type of original acquired format for seismic data developed by the Society of Exploration Geophysicists |
| SEGD |
a type of original acquired format for seismic data developed by the Society of Exploration Geophysicists |
| Text |
unformatted ASCII file format |
| TIFF |
Tagged Image File Format |
| XLS |
spreadsheet file format used by Microsoft Excel |
| XTF |
eXtensible Text Framework "is an architecture that supports searching across collections of heterogeneous textual data" (XML, PDF, text) |
| nonDigital |
For non-digital files. |
the media used for dataset transfer
| Vocabulary |
| External Hard Drive |
| CD |
| DVD |
| Microfilm |
| Online |
| Paper |
| Tape |
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kind of data differentiated by the type of receiver or source
| Vocabulary |
Definition |
| Seismic:Active |
controlled source |
| Seismic:Active:ESP |
Expanding Spread Profiling |
| Seismic:Active:MCS |
more than one channel |
| Seismic:Active:MCS-3D |
data is appropriate for 3-D processing |
| Seismic:Active:OBS |
Ocean Bottom Seismograph |
| Seismic:Active:SCS |
one channel only |
| Seismic:Active:Sonobuoy |
floating buoy receiver |
| Seismic:Active:Subbottom |
Chirp, 3.5 kHz controlled sources |
| Seismic:Passive |
natural source |
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Codelist values that identify the type of date for cited resource.
| Vocabulary |
Definition |
| creation |
Start date of cruise and/or data collection. This is the recommended value for the dataset or object. |
| published |
When the data was made available to the public, recommended if creation date of dataset is unknown. Typically this is used for the publication date of a paper or cited reference. |
| revision |
When the data was processed or revised or there is a new version released of cited object. (Not recommended for seismic dataset date). |
device used to create sound or receive sound
| Vocabulary |
Definition |
| Gravimeter |
Measures gravitational field of Earth. |
| Hydrophone_OceanBottom |
Also called OBH, deployed on the sea floor. |
| Hydrophone_OceanBottomCable |
Like an OBH, but connected by a cable. |
| Hydrophone_Sonobuoy |
Like an OBH, but floats at the surface. |
| Hydrophone_Streamer |
Towed array of hydrophones. |
| Laser_Altimeter |
Single beam, measures a range. |
| Laser_Scanning |
Towed scanner using light, aka lidar in aircraft. |
| Magnetometer |
Measures magnetic field of Earth. |
| SeismicSource_Boomer |
Fixed frequency. These penetrate bottom and create SEGY files. |
| SeismicSource_Explosive |
Makes noises in the water, e.g. dynamite. |
| SeismicSource_Flexichoc |
| SeismicSource_Gun_Air |
Pneumatic, make noises in the water. |
| SeismicSource_Gun_Air_GI |
| SeismicSource_Gun_Water |
Pneumatic, make noises in the water. |
| SeismicSource_Sparker |
Fixed frequency. These penetrate bottom and create SEGY files. |
| Seismometer_BuriedBroadband |
Receiver. |
| Seismometer_OceanBottomCable |
Also called OBS, seismometer placed on the sea floor |
| Sonar_ADCP |
Acoustic doppler current profiler. |
| Sonar_CHIRP |
Swept frequency sub-bottom profiler. |
| Sonar_Echosounder |
Single, dual, and split beams. E.g. 3.5 kHz. |
| Sonar_Interferometric |
Measures bathymetry and sidescan. |
| Sonar_Multibeam |
generic multibeam instrument |
| Sonar_Scanning |
Articulating, profiling. Example: make = Imagenex, model = 801. |
| Sonar_Sidescan |
The intensity of the acoustic reflections from the seafloor. |
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Offset corrections, associated with the navigation system and processing procedures, of the geographic position of the seismic trace that were made
| Vocabulary |
Definition |
| no |
no offset corrections between navigation antenna and receiver made for the trace location |
| partial |
some offset corrections between navigation antenna and receiver made for the trace location |
| undocumented |
this information is not documented |
| yes |
all offset corrections made for the trace location |
Are horizontal components oriented by rotation?
| Vocabulary |
Definition |
| no |
the horizontal components were not rotated |
| undocumented |
this information is not documented |
| yes |
the horizontal components were rotated |
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primary classification of data processing results
| Vocabulary |
Definition |
| CMPSorted |
shot data sorted into common mid-point gathers |
| CMPSorted:3D |
Shot data sorted into 3-D common mid-point gathers. |
| Migration |
method to reposition the seismic image to a truer subsurface position; may be done pre-stack, post-stack, or partially |
| Migration:3D |
migration of 3-D seismic data volume |
| Migration:3D:Depth |
depth migration of 3-D seismic data volume |
| Migration:Depth |
migrated data that was then depth-converted |
| NearTraceStrip |
a single trace from a shot gather used in processing |
| None |
no processing done |
| Other |
e.g., resampled to 4ms |
| Stack |
summed traces of common mid-points |
| Stack:3D |
summed traces of 3-D common mid-points |
| Undocumented |
this information is not documented, yet may still be processed. |
data may be processed for reflections, refractions or velocities; for use if DataClass = Processed or Compilation
| Vocabulary |
Definition |
| Seismic:Reflection |
processed for reflections |
| Seismic:Refraction |
processed for refractions |
| Seismic:Velocity |
processed for velocities |
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the class of information to which the processing was applied
| Vocabulary |
Definition |
| dataset |
processing was applied to group of data objects with something in common (e.g., acquired on the same field expedition; processed the same; etc.) |
| dataObject |
processing was applied to a particular dataObject, e.g. a particular SEG-Y. |
| collectionHardware |
processing parameters describes history/lineage of the devices used to collect the data. |
| fieldSession |
processing parameters describes history or processing during data collection |
Function performed by the responsible party or contact.(ISO 19115)
| Vocabulary |
Definition |
| author |
person who writes the paper |
| custodian |
person/organization who cares for the data , e.g. the archive |
| distributor |
person/organization who distributes the data |
| originator |
person who creates/collects data |
| owner |
person/organization who owns the data |
| pointOfContact |
person who serves as coordinator/information distributor of a project |
| principalInvestigator |
lead scientist of an investigation |
| processor |
the person who processed the data |
| publisher |
organization that published the data/paper |
| resourceProvider |
person/organization who provided the data |
| user |
person who is using the data |
Classification how how the data was generated
| Vocabulary |
Definition |
| Analog |
Paper, film or other media |
| DigitalSeg |
digitally recorded data in a standard Society of Exploration Geophysics format |
| DigitalSeg:DigitallyAcquired |
Field samples recorded as digital values |
| DigitalSeg:ScannedFromAnalog |
image scanned to create a standard Society of Exploration Geophysics (SEG-Y) format |
| DigitialImage |
scanned from analog record, may have navigation file image is geo-referenced image |
| Other |
identifies how shot spacing control was activated, either by time or distance
| Vocabulary |
Definition |
| distance |
shot spacing controlled by distance between shots |
| time |
shot spacing controlled by time between shots |
used in acquisitionParameters
| Vocabulary |
| cubicCentimeters |
| cubicInches |
The identification of the survey reference system, as pertains to the referencing object (e.g. acquisitionParameters or NavFile). Note that the datum could be the same as time of acquisition or different. ''referenced from seismicNavFile/surveyDatum, acquisitionParameters/surveyDatum''
| Vocabulary |
| Clark1866 |
| GRS80 |
| NAD27 |
| NAD83 |
| NAD87 |
| WGS84 |
| WGS72 |
for use with OBS data; describes whether a channel was used to sense vertical ground motion, horizontal ground motion, or pressure variation
| Vocabulary |
Definition |
| horizontal |
senses horizontal ground motion |
| hydrophone |
senses pressure variation |
| undocumented |
this information is not documented |
| vertical |
senses vertical ground motion |
for use with elements that require a yes or no answer
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