Description:

identification of when a given event occurred

Code Definitions:

creation:

date identifies when the resource was brought into existence

publication:

date identifies when the resource was issued

revision:

date identifies when the resource was examined or re-examined and imporved or amended

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Description:

function performed by the resource

Code Definitions:

download:

online instructions for transferring data from one storage device or system to another

information:

online information about the resource

offlineAccess:

online instructions for requesting the resource from the provider

order:

online order process for obtening the resource

search:

online search interface for seeking out information about the resource

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Description:

mode in which the data is represented

Code Definitions:

documentDigital:

digital representation of a primarily textual item (can contain illustrations also)

documentHardcopy:

likeness of natural or man-made features, objects, and activities acquired through the sensing of visual or any other segment of the electromagnetic spectrum by sensors, such as thermal infrared, and high resolution radar and stored in digital format

imageDigital:

representation of a primarily textual item (can contain illustrations also) on paper, photograhic material, or other media

imageHardcopy:

likeness of natural or man-made features, objects, and activities acquired through the sensing of visual or any other segment of the electromagnetic spectrum by sensors, such as thermal infrared, and high resolution radar and reproduced on paper, photographic material, or other media for use directly by the human user

mapDigital:

map represented in raster or vector form

mapHardcopy:

map printed on paper, photographic material, or other media for use directly by the human user

modelDigital:

multi-dimensional digital representation of a feature, process, etc.

modelHardcopy:

3-dimensional, physical model

profileDigital:

vertical cross-section in digital form

profileHardcopy:

vertical cross-section printed on paper, etc.

tableDigital:

digital representation of facts or figures systematically displayed, especially in columns

tableHardcopy:

representation of facts or figures systematically displayed, especially in columns, printed onpapers, photographic material, or other media

videoDigital:

digital video recording

videoHardcopy:

video recording on film

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Description:

function performed by the responsible party

Code Definitions:

author:

party who authored the resource

custodian:

party that accepts accountability and responsibility for the data and ensures appropriate care and maintenance of the resource

distributor:

party who distributes the resource

originator:

party who created the resource

owner:

party that owns the resource

pointOfContact:

party who can be contacted for acquiring knowledge about or acquisition of the resource

principalInvestigator:

key party responsible for gathering information and conducting research

processor:

party who has processed the data in a manner such that the resource has been modified

publisher:

party who published the resource

resourceProvider:

party that supplies the resource

user:

party who uses the resource

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Description:

type or method for evaluating an identified data quality measure

Code Definitions:

directExternal:

method of evaluating the quality of a dataset based on inspection of items within the dataset, where reference data external to the dataset being evaluated is required

directInternal:

method of evaluating the quality of a dataset based on inspection of items within the dataset, where all data required is internal to the dataset being evaluated

indirect:

method of evaluating the quality of a dataset based on external knowledge

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Description:

justification for the correlation of two datasets

Code Definitions:

crossReference:

reference from one dataset to another

largerWorkCitation:

reference to a master dataset of which this one is a part

partOfSeamlessDatabase:

part of the same structured set of data held in a computer

source:

mapping and charting information from which the dataset content originates

stereoMate:

part of a set of imagery that when used together, provides three-dimensional images

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Description:

type of aggregation activity in which datasets are related

Code Definitions:

campaign:

series of organized planned actions

collection:

accumulation of datasets assembled for a specific purpose

exercise:

specific performance of a function or group of functions

experiment:

process designed to find if something is effective or valid

investigation:

search or systematic inquiry

mission:

specific operation of a data collection system

operation:

action that is part of a series of actions

platform:

vehicle or other support base that holds a sensor

process:

method of doing something involving a number of steps

program:

specific planned activity

project:

organized undertaking, research, or development

sensor:

device or piece of equipment which detects or records

study:

examination or investigation

task:

piece of work

trial:

process of testing to discover or demonstrate something

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Description:

code indicating whether grid data is point or area

Code Definitions:

area:

each cell represents an area

point:

each cell represents a point

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Description:

name of the character coding standard used in the resource

Code Definitions:

8859part1:

ISO/IEC 8859-1, Information technology - 8-bit single byte coded graphic character sets - Part 1 : Latin alphabet No.1

8859part10:

ISO/IEC 8859-10, Information technology - 8-bit single byte coded graphic character sets - Part 10 : Latin alphabet No.6

8859part11:

ISO/IEC 8859-11, Information technology - 8-bit single byte coded graphic character sets - Part 11 : Latin/Thai alphabet

8859part13:

ISO/IEC 8859-13, Information technology - 8-bit single byte coded graphic character sets - Part 13 : Latin alphabet No.7

8859part14:

ISO/IEC 8859-14, Information technology - 8-bit single byte coded graphic character sets - Part 14 : Latin alphabet No.8 (Celtic)

8859part15:

ISO/IEC 8859-15, Information technology - 8-bit single byte coded graphic character sets - Part 15 : Latin alphabet No.9

8859part16:

ISO/IEC 8859-16, Information technology - 8-bit single byte coded graphic character sets - Part 16 : Latin alphabet No.10

8859part2:

ISO/IEC 8859-2, Information technology - 8-bit single byte coded graphic character sets - Part 2 : Latin alphabet No.2

8859part3:

ISO/IEC 8859-3, Information technology - 8-bit single byte coded graphic character sets - Part 3 : Latin alphabet No.3

8859part4:

ISO/IEC 8859-4, Information technology - 8-bit single byte coded graphic character sets - Part 4 : Latin alphabet No.4

8859part5:

ISO/IEC 8859-5, Information technology - 8-bit single byte coded graphic character sets - Part 5 : Latin/Cyrillic alphabet

8859part6:

ISO/IEC 8859-6, Information technology - 8-bit single byte coded graphic character sets - Part 6 : Latin/Arabic alphabet

8859part7:

ISO/IEC 8859-7, Information technology - 8-bit single byte coded graphic character sets - Part 7 : Latin/Greek alphabet

8859part8:

ISO/IEC 8859-8, Information technology - 8-bit single byte coded graphic character sets - Part 8 : Latin/Hebrew alphabet

8859part9:

ISO/IEC 8859-9, Information technology - 8-bit single byte coded graphic character sets - Part 9 : Latin alphabet No.5

GB2312:

simplified Chinese code set

big5:

traditional Chinese code set used in Taiwan, Hong Kong of China and other areas

ebcdic:

IBM mainframe code set

eucJP:

japanese code set used on UNIX based machines

eucKR:

Korean code set

jis:

japanese code set used for electronic transmission

shiftJIS:

japanese code set used on MS-DOS machines

ucs2:

16-bit fixed size Universal Character Set, based on ISO/IEC 10646

ucs4:

32-bit fixed size Universal Character Set, based on ISO/IEC 10646

usAscii:

United States ASCII code set (ISO 646 US)

utf16:

16-bit variable size UCS Transfer Format, based on ISO/IEC 10646

utf7:

7-bit variable size UCS Transfer Format, based on ISO/IEC 10646

utf8:

8-bit variable size UCS Transfer Format, based on ISO/IEC 10646

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Description:

name of the handling restrictions on the dataset

Code Definitions:

confidential:

available for someone who can be entrusted with information

restricted:

not for general disclosure

secret:

kept or meant to be kept private, unknown, or hidden from all but a select group of people

topSecret:

of the highest secrecy

unclassified:

available for general disclosure

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Description:

specific type of information represented in the cell

Code Definitions:

image:

meaningful numerical representation of a physical parameter that is not the actual value of the physical parameter

physicalMeasurement:

value in physical units of the quantity being measured

thematicClassification:

code value with no quantitative meaning, used to represent a physical quantity

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Description:

datatype of element or entity

Code Definitions:

abstractClass:

class that cannot be directly instantiated

aggregateClass:

class that is composed of classes it is connected to by an aggregate relationship

association:

semantic relationship between two classes that involves connections among their instances

characterString:

free text field

class:

descriptor of a set of objects that share the same attributes, operations, methods, relationships, and behavior

codelist:

descriptor of a set of objects that share the same attributes, operations, methods, relationships, and behavior

codelistElement:

permissible value for a codelist or enumeration

datatypeClass:

class with few or no operations whose primary purpose is to hold the abstract state of another class for transmittal, storage, encoding or persistent storage

enumeration:

data type whose instances form a list of named literal values, not extendable

integer:

numerical field

interfaceClass:

named set of operations that characterize the behavior of an element

metaClass:

class whose instances are classes

specifiedClass:

subclass that may be substituted for its superclass

typeClass:

class used for specification of a domain of instances (objects), together with the operations applicable to the objects. A type may have attributes and associations

unionClass:

class describing a selection of one of the specified types

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Description:

name of the dimension

Code Definitions:

column:

abscissa (x) axis

crossTrack:

perpendicular to the direction of motion of the scan point

line:

scan line of a sensor

row:

ordinate (y) axis

sample:

element along a scan line

time:

duration

track:

along the direction of motion of the scan point

vertical:

vertical (z) axis

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Description:

name of point or vector objects used to locate zero-, one-, two-, or three-dimensional spatial locations in the dataset

Code Definitions:

complex:

set of geometric primitives such that their boundaries can be represented as a union of other primitives

composite:

connected set of curves, solids or surfaces

curve:

bounded, 1-dimensional geometric primitive, representing the continuous image of a line

point:

zero-dimensional geometric primitive, representing a position but not having an extent

solid:

bounded, connected 3-dimensional geometric primitive, representing the continuous image of a region of space

surface:

bounded, connected 2-dimensional geometric primitive, representing the continuous image of a region of a plane

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Description:

code which indicates conditions which may affect the image

Code Definitions:

blurredImage:

portion of the image is blurred

cloud:

portion of the image is partially obscured by cloud cover

degradingObliquity:

acute angle between the plane of the ecliptic (the plane of the Earth s orbit) and the plane of the celestial equator

fog:

portion of the image is partially obscured by fog

heavySmokeOrDust:

portion of the image is partially obscured by heavy smoke or dust

night:

image was taken at night

rain:

image was taken during rainfall

semiDarkness:

image was taken during semi-dark conditions -- twilight conditions

shadow:

portion of the image is obscured by shadow

snow:

portion of the image is obscured by snow

terrainMasking:

the absence of collection data of a given point or area caused by the relative location of topographic features which obstruct the collection path between the collector(s) and the subject(s) of interest

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Description:

methods used to group similar keywords

Code Definitions:

discipline:

keyword identifies a branch of instruction or specialized learning

place:

keyword identifies a location

stratum:

keyword identifies the layer(s) of any deposited substance

temporal:

keyword identifies a time period related to the dataset

theme:

keyword identifies a particular subject or topic

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Description:

frequency with which modifications and deletions are made to the data after it is first produced

Code Definitions:

annually:

data is updated every year

asNeeded:

data is updated as deemed necessary

biannually:

data is updated twice each year

continual:

data is repeatedly and frequently updated

daily:

data is updated each day

fortnightly:

data is updated every two weeks

irregular:

data is updated in intervals that are uneven in duration

monthly:

data is updated each month

notPlanned:

there are no plans to update the data

quarterly:

data is updated every three months

unknown:

frequency of maintenance for the data is not known

weekly:

data is updated on a weekly basis

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Description:

method used to write to the medium

Code Definitions:

cpio:

CoPy In / Out (UNIX file format and command)

highSierra:

high sierra file system

iso9660:

information processing volume and file structure of CD-ROM

iso9660AppleHFS:

hierarchical file system (Macintosh)

iso9660RockRidge:

rock ridge interchange protocol (UNIX)

tar:

Tape ARchive

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Description:

name of the medium

Code Definitions:

1quarterInchCartridgeTape:

0,25 inch magnetic tape

3480Cartridge:

3480 cartridge tape drive

3490Cartridge:

3490 cartridge tape drive

3580Cartridge:

3580 cartridge tape drive

3halfInchFloppy:

3,5 inch magnetic disk

4mmCartridgeTape:

4 millimetre magnetic tape

5quarterInchFloppy:

5,25 inch magnetic disk

7trackTape:

7 track magnetic tape

8mmCartridgeTape:

8 millimetre magnetic tape

9trackType:

9 track magnetic tape

cdRom:

read-only optical disk

digitalLinearTape:

half inch cartridge streaming tape drive

dvd:

digital versatile disk

dvdRom:

digital versatile disk, read only

hardcopy:

pamphlet or leaflet giving descriptive information

onLine:

direct computer linkage

satellite:

linkage through a satellite communication system

telephoneLink:

communication through a telephone network

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Description:

obligation of the element or entity

Code Definitions:

conditional:

element is required when a specific condition is met

mandatory:

element is always required

optional:

element is not required

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Description:

point in a pixel corresponding to the Earth location of the pixel

Code Definitions:

center:

point halfway between the lower left and the upper right of the pixel

lowerLeft:

the corner in the pixel closest to the origin of the SRS; if two are at the same distance from the origin, the one with the smallest x-value

lowerRight:

next corner counterclockwise from the lower left

upperLeft:

next corner counterclockwise from the upper right

upperRight:

next corner counterclockwise from the lower right

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Description:

status of the dataset or progress of a review

Code Definitions:

completed:

production of the data has been completed

historicalArchive:

data has been stored in an offline storage facility

obsolete:

data is no longer relevant

onGoing:

data is continually being updated

planned:

fixed date has been established upon or by which the data will be created or updated

required:

data needs to be generated or updated

underDevelopment:

data is currently in the process of being created

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Description:

limitation(s) placed upon the access or use of the data

Code Definitions:

copyright:

exclusive right to the publication, production, or sale of the rights to a literary, dramatic, musical, or artistic work, or to the use of a commercial print or label, granted by law for a specified period of time to an author, composer, artist, distributor

intellectualPropertyRights:

rights to financial benefit from and control of distribution of non-tangible property that is a result of creativity

license:

formal permission to do something

otherRestrictions:

limitation not listed

patent:

government has granted exclusive right to make, sell, use or license an invention or discovery

patentPending:

produced or sold information awaiting a patent

restricted:

withheld from general circulation or disclosure

trademark:

a name, symbol, or other device identifying a product, officially registered and legally restricted to the use of the owner or manufacturer

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Description:

class of information to which the referencing entity applies

Code Definitions:

attribute:

information applies to the attribute class

attributeType:

information applies to the characteristic of a feature

collectionHardware:

information applies to the collection hardware class

collectionSession:

information applies to the collection session

dataset:

information applies to the dataset

dimensionGroup:

information applies to a dimension group

feature:

information applies to a feature

featureType:

information applies to a feature type

fieldSession:

information applies to a field session

model:

information applies to a copy or imitation of an existing or hypothetical object

nonGeographicDataset:

information applies to non-geographic data

propertyType:

information applies to a property type

series:

information applies to the series

service:

information applies to a capability which a service provider entity makes available to a service user entity through a set of interfaces that define a behaviour, such as a use case

software:

information applies to a computer program or routine

tile:

information applies to a tile, a spatial subset of geographic data

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Description:

method used to represent geographic information in the dataset

Code Definitions:

grid:

grid data is used to represent geographic data

stereoModel:

three-dimensional view formed by the intersecting homologous rays of an overlapping pair of images

textTable:

textual or tabular data is used to represent geographic data

tin:

triangulated irregular network

vector:

vector data is used to represent geographic data

video:

scene from a video recording

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Description:

high-level geographic data thematic classification to assist in the grouping and search of available geographic data sets. Can be used to group keywords as well. Listed examples are not exhaustive.

Code Definitions:

biota:

flora and/or fauna in natural environment. Examples: wildlife, vegetation, biological sciences, ecology, wilderness, sealife, wetlands, habitat

boundaries:

legal land descriptions. Examples: political and administrative boundaries

climatologyMeteorologyAtmosphere:

processes and phenomena of the atmosphere. Examples: cloud cover, weather, climate, atmospheric conditions, climate change, precipitation

economy:

economic activities, conditions and employment. Examples: production, labour, revenue, commerce, industry, tourism and ecotourism, forestry, fisheries, commercial or subsistence hunting, exploration and exploitation of resources such as minerals, oil and gas

elevation:

height above or below sea level. Examples: altitude, bathymetry, digital elevation models, slope, derived products

environment:

environmental resources, protection and conservation. Examples: environmental pollution, waste storage and treatment, environmental impact assessment, monitoring environmental risk, nature reserves, landscape

farming:

rearing of animals and/or cultivation of plants. Examples: agriculture, irrigation, aquaculture, plantations, herding, pests and diseases affecting crops and livestock

geoscientificInformation:

information pertaining to earth sciences. Examples: geophysical features and processes, geology, minerals, sciences dealing with the composition, structure and origin of the earth s rocks, risks of earthquakes, volcanic activity, landslides, gravity information, soils, permafrost, hydrogeology, erosion

health:

health, health services, human ecology, and safety. Examples: disease and illness, factors affecting health, hygiene, substance abuse, mental and physical health, health services

imageryBaseMapsEarthCover:

base maps. Examples: land cover, topographic maps, imagery, unclassified images, annotations

inlandWaters:

inland water features, drainage systems and their characteristics. Examples: rivers and glaciers, salt lakes, water utilization plans, dams, currents, floods, water quality, hydrographic charts

intelligenceMilitary:

military bases, structures, activities. Examples: barracks, training grounds, military transportation, information collection

location:

positional information and services. Examples: addresses, geodetic networks, control points, postal zones and services, place names

oceans:

features and characteristics of salt water bodies (excluding inland waters). Examples: tides, tidal waves, coastal information, reefs

planningCadastre:

information used for appropriate actions for future use of the land. Examples: land use maps, zoning maps, cadastral surveys, land ownership

society:

characteristics of society and cultures. Examples: settlements, anthropology, archaeology, education, traditional beliefs, manners and customs, demographic data, recreational areas and activities, social impact assessments, crime and justice, census information

structure:

man-made construction. Examples: buildings, museums, churches, factories, housing, monuments, shops, towers

transportation:

means and aids for conveying persons and/or goods. Examples: roads, airports/airstrips, shipping routes, tunnels, nautical charts, vehicle or vessel location, aeronautical charts, railways

utilitiesCommunication:

energy, water and waste systems and communications infrastructure and services. Examples: hydroelectricity, geothermal, solar and nuclear sources of energy, water purification and distribution, sewage collection and disposal, electricity and gas distribution, data communication, telecommunication, radio, communication networks

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Description:

degree of complexity of the spatial relationships

Code Definitions:

abstract:

topological complex without any specified geometric realisation

fullPlanarGraph:

2-dimensional topological complex that is planar. (A 2-dimensional topological complex is commonly called full topology in a cartographic 2D environment.)

fullSurfaceGraph:

2-dimensional topological complex that is isomorphic to a subset of a surface

fullTopology3D:

complete coverage of a 3D Euclidean coordinate space

geometryOnly:

geometry objects without any additional structure which describes topology

planarGraph:

1-dimensional topological complex that is planar. (A planar graph is a graph that can be drawn in a plane in such a way that no two edges intersect except at a vertex.)

surfaceGraph:

1-dimensional topological complex that is isomorphic to a subset of a surface. (A geometric complex is isomorphic to a topological complex if their elements are in a one-to-one, dimensional-and boundry-preserving correspondence to one another.)

topology1D:

1-dimensional topological complex -- commonly called chain-node topology

topology3D:

3-dimensional topological complex. (A topological complex is a collection of topological primitives that are closed under the boundary operations.)

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Description:

Extension of MD_ScopeCode for the needs of GMX application schemas and in the context of a transfer

Code Definitions:

attribute:

information applies to the attribute class

attributeType:

information applies to the characteristic of a feature

collectionHardware:

information applies to the collection hardware class

collectionSession:

information applies to the collection session

dataset:

information applies to the dataset

dimensionGroup:

information applies to a dimension group

feature:

information applies to a feature

featureType:

information applies to a feature type

fieldSession:

information applies to a field session

initiative:

The referencing entity applies to a transfer aggregate which was originally identified as an initiative (DS_Initiative)

model:

information applies to a copy or imitation of an existing or hypothetical object

nonGeographicDataset:

information applies to non-geographic data

otherAggregate:

The referencing entity applies to a transfer aggregate which has an existence outside of the transfer context, but which does not pertains to a specific aggregate type.

platformSeries:

The referencing entity applies to a transfer aggregate which was originally identified as a platform series (DS_PlatformSeries)

productionSeries:

The referencing entity applies to a transfer aggregate which was originally identified as a production series (DS_ProductionSeries)

propertyType:

information applies to a property type

sensor:

The referencing entity applies to a transfer aggregate which was originally identified as a sensor (DS_Sensor)

sensorSeries:

The referencing entity applies to a transfer aggregate which was originally identified as a sensor series (DS_SensorSeries)

series:

information applies to the series

service:

information applies to a capability which a service provider entity makes available to a service user entity through a set of interfaces that define a behaviour, such as a use case

software:

information applies to a computer program or routine

stereomate:

The referencing entity applies to a transfer aggregate which was originally identified as a stereo mate (DS_StereoMate)

tile:

information applies to a tile, a spatial subset of geographic data

transferAggregate:

The referencing entity applies to a transfer aggregate which has no existence outside of the transfer context

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