An individual who is an expert on a collection of resources and may also be knowledgeable of the phenomenon and related physics represented by the resources. This includes librarians, curators, archive scientists and other experts.

An individual who is a scientific peer and major participant in an investigation.

An entity responsible for making contributions to the content of the resource.

An individual who generated the resource and is familiar with its provenance.

An individual who is an administrative or scientific leader for an investigation operating under the supervision of a Principal Investigator.

An individual who had served as the administrative and scientific lead for an investigation, but no longer assumes that role.

An individual who can provide information on a range of subjects or who can direct you to a domain expert.

An individual who can affect a change in the metadata describing a resource.

An individual who is the administrative and scientific lead for an investigation.

An individual who is an expert in the phenomenon and related physics explored by the project. A project scientist may also have a managerial role within the project.

An individual, organization, institution or government department responsible for the production and dissemination of a document.

An individual who is an expert in the phenomenon and related physics represented by the resource.

An individual who is the designated leader of an investigation.

An individual who is a major participant in an investigation.

An individual who can provide specific information with regard to the resource or supporting software

A descendant or caused by another resource.

A transformed or altered version of a resource instance.

Detected or originating from another resource.

Not classified with more specific terms. The context of its usage may be described in related text.

A portion of a larger resource.

A modified version of a resource instance.

Not directly accessible electronically. This includes resources which may to be moved to an on-line status in response to a given request.

Directly accessible electronically.

Access is granted to everyone.

Access to the product is regulated and requires some form of identification.

Audio Video Interleave (AVI) a digital format for movies that conforms to the Microsoft Windows Resource Interchange File Format (RIFF).

A direct representation of the bits which may be stored in memory on a computer.

Common Data Format (CDF). A binary storage format developed at Goddard Space Flight Center (GSFC).

Cluster Exchange Format (CEF) is a self-documenting ASCII format designed for the exchange of data. There are two versions of CEF which are not totally compatible.

Cluster Exchange Format (CEF), version 1, is a self-documenting ASCII format designed for the exchange of data. The metadata contains information compatible with the ISTP recommendations for CDF.

Cluster Exchange Format (CEF), version 2, is a self-documenting ASCII format designed for the exchange of data and introduced for Cluster Active Archive. Compared to version 1, the metadata description of vectors and tensors is different.

Flexible Image Transport System (FITS) is a digital format primarily designed to store scientific data sets consisting of multi-dimensional arrays (1-D spectra, 2-D images or 3-D data cubes) and 2-dimensional tables containing rows and columns of data.

Graphic Interchange Format (GIF) first introduced in 1987 by CompuServe. GIF uses LZW compression and images are limited to 256 colours.

Hierarchical Data Format

Hierarchical Data Format, Version 4

Hierarchical Data Format, Version 5

A text file containing structured information represented in the HyperText Mark-up Language (HTML). See <http://www.w3.org/MarkUp/>

Instrument Data File Set (IDFS) is a set of files written in a prescribed format which contain data, timing data, and meta-data. IDFS was developed at Southwest Research Institute (SwRI).

Interactive Data Language (IDL) save set. IDL is a proprietary format.

A binary format for still images defined by the Joint Photographic Experts Group

MATLAB Workspace save set, version 4. MAT-files are double-precision, binary, MATLAB format files. MATLAB is a proprietary product of The MathWorks.

MATLAB Workspace save set, version 6. MAT-files are double-precision, binary, MATLAB format files. MATLAB is a proprietary product of The MathWorks.

MATLAB Workspace save set, version 7. MAT-files are double-precision, binary, MATLAB format files. Version 7 includes data compression and Unicode encoding. MATLAB is a proprietary product of The MathWorks.

A digital format for movies defined by the Motion Picture Experts Group

The National Center for Atmospheric Research (NCAR) format. A complete description of that standard is given in appendix C of the Report on Establishment & Operation of the Incoherent- Scatter Data Base, dated August 23, 1984, obtainable from NCAR, P.O. Box 3000 Boulder, Colorado 80307-3000.

Unidata Program Centers Network Common Data Form (NetCDF). A self-describing portable data format for array-oriented data access. See <http://my.unidata.ucar.edu/content/software/netcdf>

A document expressed in the Portable Document Format (PDF) as defined by Adobe.

A digital format for still images. Portable Network Graphics (PNG)

A page description programming language created by Adobe Systems Inc. that is a device-independent industry standard for representing text and graphics.

A format for digital movies, as defined by Apple Computer. See <http://developer.apple.com/quicktime/>

A binary format for still pictures. Tagged Image Format File (TIFF). Originally developed by Aldus and now controlled by Adobe.

A sequence of characters which may have an imposed structure or organization.

A sequence of characters that adheres to American Standard Code for Information Interchange (ASCII) which is an 7-bit character-coding scheme.

Text in multi-byte Unicode format.

Universal Data Format (UDF). The Optical Technology Storage Associations Universal Disk Format, based on ISO 13346. See <http://www.osta.org/specs/index.htm>

A proposed IVOA standard designed as a flexible storage and exchange format for tabular data.

eXtensible Mark-up Language (XML). A structured format for representing information. See <http://www.w3.org/XML/>

A sequence of characters that adheres to American Standard Code for Information Interchange (ASCII) which is an 7-bit character-coding scheme.

An open standard algorithm by Julian Seward using Burrows-Wheeler block sorting and Huffman coding. See <http://www.bzip.org/>

A data encoding scheme whereby binary-encoded data is converted to printable ASCII characters. It is defined as a MIME content transfer encoding for use in Internet e-mail. The only characters used are the upper- and lower-case Roman alphabet characters (A-Z, a-z), the numerals (0-9), and the + and / symbols, with the = symbol as a special suffix (padding) code.

An open standard algorithm distributed by GHU based on LZ77 and Huffman coding. See <http://www.gnu.org/software/gzip/gzip.html> or <http://www.gzip.org/>

A lack or absence of anything.

A file format used to collate collections of files into one larger file, for distribution or archiving, while preserving file system information such as user and group permissions, dates, and directory structures. The format was standardized by POSIX.1-1988 and later POSIX.1-2001.

Text in multi-byte Unicode format.

An open standard for compression which is a variation of the LZW method and was originally used in the PKZIP utility.

A localized, transient volume of the solar atmosphere in which PLAGEs, SUNSPOTS, FACULAe, FLAREs, etc. may be observed.

An atmospheric phenomenon consisting of bands of light caused by charged solar particles following the earths magnetic lines of force.

A crossing of the boundary between the undisturbed (except for foreshock effects) solar wind and the shocked, decelerated solar wind of the magnetosheath.

An extended region of the corona, exceptionally low in density and associated with unipolar photospheric regions. A coronal hole can be an open magnetic field in the corona and (perhaps) inner heliosphere which has a faster than average outflow (wind); A region of lower than quiet ion and electron density in the corona; or a region of lower peak electron temperature in the corona than in the quiet corona.

A solar event (CME) that involves a burst of plasma ejected into the interplanetary medium.  CMEs may be observed remotely relatively near the sun or in situ in the interplanetary medium.  The latter type of observations are often referred to as Interplanetary CMEs (ICMEs).

A wave in the corona of the Sun which produce shock waves on the Suns chromosphere (Moreton Waves). EIT Waves are produced by large solar flare and expand outward at about 1,000 km/s. It usually appears as a slowly moving diffuse arc of brightening in H-alpha, and may travel for several hundred thousand km.

An enhancement of interplanetary fluxes of energetic ions accelerated by interplanetary shocks and/or solar flares.

A rapid decrease in the observed galactic cosmic ray intensity following the passage of an outwardly convecting interplanetary magnetic field disturbance, such as those associated with large CMEs, that sweep some galactic cosmic rays away from Earth.

A magnetospheric disturbance typically defined by variations in the horizontal component of the Earths surface magnetic field.  The variation typically starts with a field enhancement associated with a solar wind pressure pulse and continues with a field depression associated with an enhancement of the diamagnetic magnetospheric ring current.

A shock propagating generally anti-sunward through the slower solar wind, often seen in front of CME-associated plasma clouds.

A transient event observed in the solar wind characterized as a region of enhanced magnetic field strength, smooth rotation of the magnetic field vector and low proton density and temperature.

A crossing of the interface between the shocked solar wind in the magnetosheath and the magnetic field and plasma in the magnetosphere.

Emissions of the sun in radio wavelengths from centimeters to dekameters, under both quiet and disturbed conditions. Radio Bursts can be Type I consisting of many short, narrow-band bursts in the metric range (300 - 50 MHz).; Type II consisting of narrow-band emission that begins in the meter range (300 MHz) and sweeps slowly (tens of minutes) toward dekameter wavelengths (10 MHz).; Type III consisting of narrow-band bursts that sweep rapidly (seconds) from decimeter to dekameter wavelengths (500 - 0.5 MHz); and Type IV consisting of a smooth continuum of broad-band bursts primarily in the meter range (300 - 30 MHz).

An explosive event in the Suns atmosphere which produces electromagnetic radiation across the electromagnetic spectrum at multiple wavelengths from long-wave radio to the shortest wavelength gamma rays.

Intervals of unusually large or small values of solar wind attributes such as flow speed and ion density.

The region (SIR) where two solar wind streams, typically having differing characteristics and solar sources, abut up against (and possibly partially interpenetrate) each other.

A process by which plasma in the magnetotail becomes energized at a fast rate.

A representation in which a position vector or a measured vector (e.g., field or flow) is specified by its components along the base axes of the coordinate system.

A coordinate representation of a position vector or measured vector (field or flow) by its k-component, the magnitude of its projection into the i-j plane, and the azimuthal angle of the i-j plane projection.

A coordinate representation of a position vector or of a measured vector by its magnitude and two direction angles.  The angles are relative to the base axes of the coordinate system used.  Typically the angles are phi [azimuth angle, =arctan (j/i)] and theta, where theta may be a polar angle, arctan {[SQRT(i^2+j^2)]/k}, or an elevation angle, arctan [k/SQRT (i^2+j^2)].