| Term | Description |
| Conductivity | A measure of the ability of a medium to conduct electricity. |
| FluidFlow | Measurement of fluids (liquids and gases) in motion. |
| Gravity:Anomaly:FreeAir | measurement of the difference between observed gravity and theoretical gravity that has been computed for latitude and corrected for elevation of the station above or below the geoid, by application of the normal rate of change of gravity for change of elevation, as in free air. |
| Chemistry | data concerned with the composition, structure, and properties of matter, as well as the changes it undergoes during chemical reactions |
| Visualization | A rendering of volumes, surfaces, illumination sources, etc, sometimes with a temporal component. |
| Bathymetry:Swath | Bathymetry data derived from a multibeam sonar. |
| Gravity:Anomaly:MantleBouguerResidual | |
| Interpretation:Geologic:SedimentaryEnvironments | |
| Seismic:Passive | Measurements of ground motions generated by natural seismic sources, eg earthquakes, volcanic eruptions |
| SampleInfo:Microbiology | An inventory of microbiological samples physically acquired at a field site. |
| PhysicalProperties:Rock | A measure of the physical properties (e.g. permeability, porosity) of a rock sample. |
| Radiation:Visible | The measurement of the electromagnetic spectrum that is visible to (can be detected by) the human eye. |
| Seismic:Navigation | Information about the position of the equipment during seismic data acquisition. This should include date, time, x and y. |
| WaveMeasurement | Measurements related to characteristics of waves such as wave height, period, direction. |
| Chemistry:Fluid:pH | A measure of the acidity of a fluid. |
| Earthquake:Catalog:Microseismicity | An inventory of earthquake positions and magnitudes. |
| Biology:StableIsotopes | |
| Navigation:Primary | Primary ship navigation data product |
| Biology:Species:List | A list of organisms that were identified to species. |
| Biology:Species:Abundance | A quantification of species abundance in a particular sample. |
| Permeability | |
| Seismic:ReceiverFunction | Receiver function calculated from earthquake data |
| Chemistry:Sediment | Geochemistry data derived from sediment samples. |
| SampleInfo | Metadata about physical samples that were acquired. |
| LayerThickness:Crust | Crustal thickness, may be in depth or twtt. May be determined from seismic, radar, gravity etc. |
| Gravity:Anomaly:MantleBouguer | |
| Rugosity | Measurement of surface roughness (of a fluid) |
| Photograph:Video:TimeLapse | A video assembled from time-lapse images |
| Bathymetry:Singlebeam | Bathymetry data derived from a single beam echosounder. |
| Velocity:Particle | |
| Electromagnetic | Measurement of physical field produced by electrically charged objects. |
| Radiation:Infrared | The measurement of electromagnetic radiation whose wavelength is longer than that of visible light (400-700 nm), but shorter than that of terahertz radiation (100 µm - 1 mm) and microwaves (~30,000 µm). Infrared radiation spans roughly three orders of magnitude (750 nm and 100 µm). |
| Magnetization | Quantity of magnetic moment per unit volume |
| ParticleFlux | A measure of the rate at which settling particles pass through a parcel of air or water. |
| Elevation:Surface | |
| CurrentMeasurement | A measure of fluid velocity based on the path of a fluid parcel over time or in-situ measurements of fluid flow. |
| ReflectorDepth:Seafloor | Seismically-derived depth to the seafloor |
| Photograph:Mosaic | An assemblage of images that have been rotated and scaled to create a composite view or image. |
| Turbidity | An indication of the cloudiness of a fluid associated with suspended particles. Can be measured with a variety of sensors including transmissometers, nephelometers, or secchi disks. |
| Magnetotelluric | Measurement of the electric currents under the Earth's surface induced by natural variations in the earth's magnetic field. |
| Gravity:Field | |
| Seismic:Active:OBS:TravelTimePicks | Seismic wave travel time picks derived from active-source shooting to OBS instruments |
| SampleInfo:Biology | An inventory of biological samples physically acquired at a field site. |
| Pressure | The force per unit area applied to the surface of an object. |
| Interpretation:Geologic:Fault/Fissure | |
| Biology:GeneticSequence | A succession of letters representing the primary structure of a DNA molecule or strand. |
| Temperature | A measurement of how hot or cold a substance is. |
| Earthquake:Catalog | An inventory of earthquake positions and magnitudes. |
| Transmissivity | The fraction of incident light at a specified wavelength that passes through a sample |
| SampleInfo:Rock | An inventory of rock samples physically acquired at a field site. |
| Seismic:WideAngle:OBH | Wide source-receiver offset data collected during active (also known as controlled) sorurce experiments using Ocean Bottom Hydrophones as the receivers. |
| Interpretation:Geologic:LavaFlow | |
| Radar:Reflection | Electromagnetic waves scattered from any large change in the dielectric or diamagnetic constants. |
| Gravity:Anomaly:Bouguer | Simple (marine) Bouguer anomaly with no correction for modeled topography of a constant thickness, constant density crust. |
| Biology:LarvalFlux | Flux of larvae measured at a particular location |
| BottomStress | Bottom stress refers to the shear stress experienced within the bottom boundary layer of a fluid and is a crucial component when understanding sediment transport. |
| AcousticScintillationThermometry | A measurement of slight fluctuations in water temperature based on changes in the backscattered signal between successive sonar scans of an area of the seafloor. |
| Chemistry:Fluid:Eh | The redox potential of a fluid, an indication of the tendency of chemical species to acquire electrons and thereby be reduced. |
| CrustalAge | Measurement of the amount of time the crustal rock material has been isolated from the convecting mantle. |
| Chemistry:Particulate | Chemistry data derived from particulate materials |
| Biology:Microbiology:Culture | A pure microbiological culture is produced by promoting mircroogranisms to reproduce in predetermined culture media under controlled laboratory conditions. |
| Fluorescence | Measurement of luminescence that is mostly found as an optical phenomenon in cold bodies, in which the molecular absorption of a photon triggers the emission of a photon with a longer (less energetic) wavelength, though a shorter wavelength emission is sometimes observed from multiple photon absorption. |
| Biology:LarvalDistribution | Information about the larval population in an area. Could include spatial distribution information and/or species distribution. |
| Magnetic:Field | The measurement of the Earth's total magnetic field. |
| Biology:SymbiontPhysiology | Information about the function of the living systems of organisms that live within host organisms. |
| Mineralogy:Sediment | Characterization of the mineral composition of sediments. |
| RadiometricDating | Data describing the age of materials, usually based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates. |
| Backscatter:Optical | A measurement of the cloudiness of a medium derived from measuring the amount of light scattered by particles. |
| Observation:Bird | Field observations of birds noted during science operations. |
| Sidescan | Backscatter intensity data acquired with a sidescan sonar or similar data acquired with a multibeam sonar. |
| Documentation | Use this data type for documentation that can be specifically tied to a data set, then map the two data sets. This data type will capture much of what we used to put in the entry_url table. |
| Geodesy | Measurement of crustal deformation. |
| PhysicalProperties:Sediment:Ancillary | Ancillary data such as calibration files. |
| Navigation | Information about the position of a platform or device. Minimally this includes x and y, but often date and time are also included. |
| Bathymetry | Seafloor depth data. |
| Chemistry:Rock | Geochemistry data derived from rock samples. |
| Bathymetry:ReferenceSurface | A bathymetry grid produced over a flat area of seafloor that is used to test the performance of a multibeam sonar system. |
| Biology:Electrobiology | Data describing the electrical phenomena of living organisms. |
| Salinity | A measure of the dissolved salt content of a body of water. Often computed from Conductivity. |
| SampleInfo:Sediment | An inventory of sediment samples physically acquired at a field site. |
| Backscatter:Acoustic | Acoustic backscatter intensity, the intensity of sound that is scattered back toward an acoustic transducer. |
| ModelParameters | General data type for any files used to define the parameters of a model. Includes calibration, configuration, geometry, weighting information and so on. |
| Seismic:WideAngle | Wide source-receiver offset seismic data |
| Seismic:Passive:Compliance | Measurements of the vertical displacement of the seafloor related to low frequency ocean waves (infragravity waves). |
| EnvironmentalDebris | Data quantifying anthropogenic environmental debris on the environment. |
| Interpretation:Geologic | An interpretation of the characteristics of some component of the earth based on scientific assessment of one or more data types. |
| Radiation:Gamma | Measurement of radiation of photons with a frequency of greater than 1019 Hz. |
| Visualization:Fledermaus | Fledermaus formatted visualization files (*.sd, *.scene) of surfaces and/or volumes that can be viewed with free software from IVS3D (www.ivs3d.com). |
| Bathymetry:BPI | Bathymetric Positioning Index (BPI) derived from ArcGIS Benthic Terrain Modeler(BTM). The BPI is a measure which allows calculating where a certain location with a defined elevation is relative to the overall landscape.
|
| Sediment:Description | Can include grain size distribution data derived from sediment samples, classfication of sediments (sand, mud clay) and/or descriptions of environmental parameters relevant to ecological processes. |
| Photograph:Video:FrameGrab | Still images frame grabbed from video stream. |
| Turbulence | A measure of the chaotic, stochastic property changes of a fluid flow. |
| Temperature:Diffusivity | A measure of thermal diffusivity |
| LayerThickness:Ice | |
| Photograph:Video | Streaming images generated on film or digital media. |
| Bathymetry:Phase | Bathymetry data derived from the phase difference measured between two closely spaced receiving arrays. |
| Chemistry:Fluid:Electrochemistry | data concerning chemical reactions which take place in a solution at the interface of an electron conductor (a metal or a semiconductor) and an ionic conductor (the electrolyte), and which involve electron transfer between the electrode and the electrolyte or species in solution. |
| X-radiograph | Type of data used, for example, in analysis of sediment core stratigraphy. Produced by a specialised x-ray machine. |
| Interpretation:Geologic:Map | |
| Seismic:Passive:OBH | Data from Ocean Bottom Hydrophones deployed to detect water column motions generated by natural seismic sources, eg earthquakes, volcanic eruptions. |
| Magnetic:Anomaly | Measurement of the local variation in the Earth's magnetic field |
| Flux:Air-Sea | Fluxes of momentum, sensible heat, and carbon dioxide over the ocean.
|
| Heatflow | Measurement of the transition of thermal energy from a hotter object to a cooler object |
| Biology:Species:Distribution | Information about the observed spatial distribution of different species. |
| Seismic:Reflection:SCS | Data collected using the principles of seismology to estimate the properties of the Earth's subsurface from reflected seismic waves generated by a single sound source. |
| Geodesy:Velocity | GPS velocity derived from geodetic (GPS) measurements. |
| Hydroacoustic | Waveform data collected by sound-channel moored hydrophones typically used for monitoring undersea seismicity or marine mammal activity. |
| Resistivity | A measure of how strongly a material opposes the flow of electric current. |
| ReflectorDepth:Moho | Seismically-derived depth to the Moho |
| PhysicalProperties:Rock:Ancillary | Ancillary data, such as a calibration file, related to physical properties of rock. |
| Photograph | A still image acquired with a digital or film camera. |
| Magnetic:Anomaly:IGRF | Magnetic Anomaly with the International Geomagnetic Reference Field (IGRF), a standard mathematical description of the Earth's main magnetic field, removed |
| Velocity:Doppler | A continuous-wave trajectory-measurement using the Doppler effect. |
| SampleInfo:Fluid | An inventory of fluid samples physically acquired at a field site. |
| Seismic:Passive:OBS | Data from Ocean Bottom Seismometers deployed to detect ground motions generated by natural seismic sources, eg earthquakes, volcanic eruptions. |
| TravelTime:Acoustic | Travel time for acoustic waves between, say, a modem and a logger such as those used in seafloor geodesy studies |
| Visualization:GoogleEarth | An assembly of information (e.g. images, lines, placemarks) written in KML/KMZ format for display in Google Earth. |
| Meteorological | Measurement of data related to atmosphere that focuses on weather processes and forecasting. |
| IceConcentration | Area of a surface covered in ice. Often an image or diagram that shows sea ice over bodies of water. |
| Seismic:Velocity:Model | Seismic velocity data obtained from a model. Model inputs generally include information on layer thickness, source-receiver geometry, weighting factor, etc. |
| Biology:Microbiology | Data about microorganisms, including eukaryotes (fungi and protists), and prokaryotes (bacteria and archaea). |
| Tide:Height | |
| Pseudorange:GNSS | The apparent distance between a satellite and a navigation satellite receiver. |
| Conductivity:Thermal | A measure of the ability of a medium to conduct heat. |
| Seismic:WideAngle:OBS | Wide source-receiver offset data collected during active (also known as controlled) source experiments using Ocean Bottom Seismometers as the receivers. |
| Bathymetry:Paleobathymetry | A reconstruction of a past bathymetric surface derived from sub-seafloor observations. |
| Elevation:Bedrock | |
| Earthquake:Catalog:Microseismicity:FocalMechanisms | Earthquake focal mechanism solutions |
| Velocity:Sound | The speed of sound. |
| Photograph:WebGallery | A gallery of photographs that can be viewed and explored through an internet browser. |
| Seismic:WideAngle:ESPs | Expanding Spread Profile seismic data collected during active (also known as controlled) source experiments involving two ships. |
| Interpretation:Geologic:PlateBoundary | |
| PhysicalProperties:Sediment | A measure of the physical properties (eg density, porosity, magnetic susceptibility) of sediments, usually from a sediment core logger/scanner device. |
| Density | The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume. |
| PhysicalDescription | |
| LayerThickness:SeismicLayer2A | Seismic 2A layer thickness, in meters or two way travel time. |
| SubsidenceRate | |
| Seismic:Reflection:MCS | Data collected using the principles of seismology to estimate the properties of the Earth's subsurface from reflected seismic waves generated by multiple sound sources. |
| ThermalGradient | Temperature as a function of depth |
| Oxygen | A measurement of oxygen in a substance. May be dissolved oxygen, % oxygen saturation, etc. |
| Chemistry:Fluid | data concerned with the composition, structure, and properties of fluids, as well as the changes it undergoes during chemical reactions |
| Gravity:Predicted:PlateCooling | Predicted gravity contribution of plate cooling. |
| Radiation | The measurement of energy emitted by a body. |
| Seismic:Active:Subbottom | Data on reflectivity of sedimentary or rock layers beneath the seafloor collected with CHIRP and similar systems typically operating in the few Hz up to about 50 Hz range |
| Biology:Microbiology:Diversity | A measure of the variety of microorganisms at the genetic, species and ecosystem levels. |
