- Identification Information -- basic information about the data set.
- Type: compound
- Short Name: idinfo
- Identification_Information =
- Citation +
- Description +
- Time_Period_of_Content +
- Status +
- Spatial_Domain +
- Keywords +
- Access_Constraints +
- Use_Constraints +
- (Point_of_Contact) +
- (1{Browse_Graphic}n) +
- (Data_Set_Credit) +
- (Security_Information) +
- (Native_Data_Set_Environment) +
- (1{Cross_Reference}n)
- Citation =
- Citation_Information (see section 8 for production rules)
- Description =
- Abstract +
- Purpose +
- (Supplemental_Information)
- Time_Period_of_Content =
- Time_Period_Information (see section 9 for production rules) +
- Currentness_Reference
- Status =
- Progress +
- Maintenance_and_Update_Frequency
- Spatial_Domain =
- Bounding_Coordinates +
- (1{Data_Set_G-Polygon}n)
- Bounding_Coordinates =
- West_Bounding_Coordinate +
- East_Bounding_Coordinate +
- North_Bounding_Coordinate +
- South_Bounding_Coordinate
- Data_Set_G-Polygon =
- Data_Set_G-Polygon_Outer_G-Ring +
- 0{Data_Set_G-Polygon_Exclusion_G-Ring}n
- Data_Set_G-Polygon_Outer_G-Ring =
- [4{G-Ring_Point}n | G-Ring]
- Data_Set_G-Polygon_Exclusion_G-Ring =
- [4{G-Ring_Point}n | G-Ring]
- G-Ring_Point =
- G-Ring_Latitude +
- G-Ring_Longitude
- Keywords =
- 1{Theme}n +
- 0{Place}n +
- 0{Stratum}n +
- 0{Temporal}n
- Theme =
- Theme_Keyword_Thesaurus +
- 1{Theme_Keyword}n
- Place =
- Place_Keyword_Thesaurus +
- 1{Place_Keyword}n
- Stratum =
- Stratum_Keyword_Thesaurus +
- 1{Stratum_Keyword}n
- Temporal =
- Temporal_Keyword_Thesaurus +
- 1{Temporal_Keyword}n
- Point_of_Contact =
- Contact_Information (see section 10 for production rules)
- Browse_Graphic =
- Browse_Graphic_File_Name +
- Browse_Graphic_File_Description +
- Browse_Graphic_File_Type
- Security_Information =
- Security_Classification_System +
- Security_Classification +
- Security_Handling_Description
- Cross_Reference =
- Citation_Information (see section 8 for production rules)
- 1.1 Citation -- information to be used to reference the data set.
- Type: compound
- Short Name: citation
- 1.2 Description -- a characterization of the data set, including its intended use and limitations.
- Type: compound
- Short Name: descript
- 1.2.1 Abstract -- a brief narrative summary of the data set.
- Type: text
- Domain: free text
- Short Name: abstract
- 1.2.2 Purpose -- a summary of the intentions with which the data set was developed.
- Type: text
- Domain: free text
- Short Name: purpose
- 1.2.3 Supplemental Information -- other descriptive information about the data set.
- Type: text
- Domain: free text
- Short Name: supplinf
- 1.3 Time Period of Content -- time period(s) for which the data set corresponds to the currentness reference.
- Type: compound
- Short Name: timeperd
- 1.3.1 Currentness Reference -- the basis on which the time period of content information is determined.
- Type: text
- Domain: "ground condition" "publication date" free text
- Short Name: current
- 1.4 Status -- the state of and maintenance information for the data set.
- Type: compound
- Short Name: status
- 1.4.1 Progress -- the state of the data set.
- Type: text
- Domain: "Complete" "In work" "Planned"
- Short Name: progress
- 1.4.2 Maintenance and Update Frequency -- the frequency with which changes and additions are made to the data set after the initial data set is completed.
- Type: text
- Domain: "Continually" "Daily" "Weekly" "Monthly" "Annually" "Unknown" "As needed" "Irregular" "None planned" free text
- Short Name: update
- 1.5 Spatial Domain - the geographic areal domain of the data set.
- Type: compound
- Short Name: spdom
- 1.5.1 Bounding Coordinates - 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. For data sets that include a complete band of latitude around the earth, the West Bounding Coordinate shall be assigned the value -180.0, and the East Bounding Coordinate shall be assigned the value 180.0
- Type: compound
- Short Name: bounding
- 1.5.1.1 West Bounding Coordinate -- western-most coordinate of the limit of coverage expressed in longitude.
- Type: real
- Domain: -180.0 <= West Bounding Coordinate < 180.0
- Short Name: westbc
- 1.5.1.2 East Bounding Coordinate -- eastern-most coordinate of the limit of coverage expressed in longitude.
- Type: real
- Domain: -180.0 <= East Bounding Coordinate <= 180.0
- Short Name: eastbc
- 1.5.1.3 North Bounding Coordinate -- northern-most coordinate of the limit of coverage expressed in latitude.
- Type: real
- Domain: -90.0 <= North Bounding Coordinate <= 90.0; North Bounding Coordinate >= South Bounding Coordinate
- Short Name: northbc
- 1.5.1.4 South Bounding Coordinate -- southern-most coordinate of the limit of coverage expressed in latitude.
- Type: real
- Domain: -90.0 <= South Bounding Coordinate <= 90.0; South Bounding Coordinate <= North Bounding Coordinate
- Short Name: southbc
- 1.5.2 Data Set G-Polygon -- coordinates defining the outline of an area covered by a data set.
- Type: compound
- Short Name: dsgpoly
- 1.5.2.1 Data Set G-Polygon Outer G-Ring -- the closed nonintersecting boundary of an interior area.
- Type: compound
- Short Name: dsgpolyo
- 1.5.2.1.1 G-Ring Point -- a single geographic location.
- Type: compound
- Short Name: grngpoin
- 1.5.2.1.1.1 G-Ring Latitude -- the latitude of a point of the g-ring.
- Type: real
- Domain: -90.0 <= G-Ring Latitude <= 90.0
- Short Name: gringlat
- 1.5.2.1.1.2 G-Ring Longitude -- the longitude of a point of the g-ring.
- Type: real
- Domain: -180.0 <= G-Ring Longitude < 180.0
- Short Name: gringlon
- 1.5.2.1.2 G-Ring -- a set of ordered pairs of floating-point numbers, separated by commas, in which the first number in each pair is the longitude of a point and the second is the latitude of the point. Longitude and latitude are specified in decimal degrees with north latitudes positive and south negative, east longitude positive and west negative
- Type: text
- Domain: -90<= Latitude_elements <= 90, -180 <= Longitude_Elements = 180
- Short Name: gring
- 1.5.2.2 Data Set G-Polygon Exclusion G-Ring -- the closed nonintersecting boundary of a void area (or "hole" in an interior area).
- Type: compound
- Short Name: dsgpolyx
- 1.6 Keywords -- words or phrases summarizing an aspect of the data set.
- Type: compound
- Short Name: keywords
- 1.6.1 Theme -- subjects covered by the data set (for a list of some commonly-used thesauri, see Part IV: Subject/index term sources in Network Development and MARC Standards Office, 1988, USMARC code list for relators, sources, and description conventions: Washington, Library of Congress).
- Type: compound
- Short Name: theme
- 1.6.1.1 Theme Keyword Thesaurus -- reference to a formally registered thesaurus or a similar authoritative source of theme keywords.
- Type: text
- Domain: "None" free text
- Short Name: themekt
- 1.6.1.2 Theme Keyword -- common-use word or phrase used to describe the subject of the data set.
- Type: text
- Domain: free text
- Short Name: themekey
- 1.6.2 Place -- geographic locations characterized by the data set.
- Type: compound
- Short Name: place
- 1.6.2.1 Place Keyword Thesaurus -- reference to a formally registered thesaurus or a similar authoritative source of place keywords.
- Type: text
- Domain: "None" "Geographic Names Information System" free text
- Short Name: placekt
- 1.6.2.2 Place Keyword -- the geographic name of a location covered by a data set.
- Type: text
- Domain: free text
- Short Name: placekey
- 1.6.3 Stratum -- layered, vertical locations characterized by the data set.
- Type: compound
- Short Name: stratum
- 1.6.3.1 Stratum Keyword Thesaurus -- reference to a formally registered thesaurus or a similar authoritative source of stratum keywords.
- Type: text
- Domain: "None" free text
- Short Name: stratkt
- 1.6.3.2 Stratum Keyword -- the name of a vertical location used to describe the locations covered by a data set.
- Type: text
- Domain: free text
- Short Name: stratkey
- 1.6.4 Temporal -- time period(s) characterized by the data set.
- Type: compound
- Short Name: temporal
- 1.6.4.1 Temporal Keyword Thesaurus -- reference to a formally registered thesaurus or a similar authoritative source of temporal keywords.
- Type: text
- Domain: "None" free text
- Short Name: tempkt
- 1.6.4.2 Temporal Keyword -- the name of a time period covered by a data set.
- Type: text
- Domain: free text
- Short Name: tempkey
- 1.7 Access Constraints -- restrictions and legal prerequisites for accessing the data set. These include any access constraints applied to assure the protection of privacy or intellectual property, and any special restrictions or limitations on obtaining the data set.
- Type: text
- Domain: "None" free text
- Short Name: accconst
- 1.8 Use Constraints -- restrictions and legal prerequisites for using the data set after access is granted. These include any use constraints applied to assure the protection of privacy or intellectual property, and any special restrictions or limitations on using the data set.
- Type: text
- Domain: "None" free text
- Short Name: useconst
- 1.9 Point of Contact -- contact information for an individual or organization that is knowledgeable about the data set.
- Type: compound
- Short Name: ptcontac
- 1.10 Browse Graphic -- a graphic that provides an illustration of the data set. The graphic should include a legend for interpreting the graphic.
- Type: compound
- Short Name: browse
- 1.10.1 Browse Graphic File Name -- name of a related graphic file that provides an illustration of the data set.
- Type: text
- Domain: free text
- Short Name: browsen
- 1.10.2 Browse Graphic File Description -- a text description of the illustration.
- Type: text
- Domain: free text
- Short Name: browsed
- 1.10.3 Browse Graphic File Type -- graphic file type of a related graphic file.
- Type: text
- Domain: domain values in the table below; free text
- Short Name: browset
- Domain
- Value Definition
- "CGM" Computer Graphics Metafile
- "EPS" Encapsulated Postscript format
- "EMF" Enhanced Metafile
- "GIF" Graphic Interchange Format
- "JPEG" Joint Photographic Experts Group format
- "PBM" Portable Bit Map format
- "PS" Postscript format
- "TIFF" Tagged Image File Format
- "WMF" Windows metafile
- "XWD" X-Windows Dump
- 1.11 Data Set Credit -- recognition of those who contributed to the data set.
- Type: text
- Domain: free text
- Short Name: datacred
- 1.12 Security Information -- handling restrictions imposed on the data set because of national security, privacy, or other concerns.
- Type: compound
- Short Name: secinfo
- 1.12.1 Security Classification System -- name of the classification system.
- Type: text
- Domain: free text
- Short Name: secsys
- 1.12.2 Security Classification -- name of the handling restrictions on the data set.
- Type: text
- Domain: "Top secret" "Secret" "Confidential" "Restricted" "Unclassified" "Sensitive" free text
- Short Name: secclass
- 1.12.3 Security Handling Description -- additional information about the restrictions on handling the data set.
- Type: text
- Domain: free text
- Short Name: sechandl
- 1.13 Native Data Set Environment -- a description of the data set in the producer's processing environment, including items such as the name of the software (including version), the computer operating system, file name (including host-, path-, and filenames), and the data set size.
- Type: text
- Domain: free text
- Short Name: native
- 1.14 Cross Reference -- information about other, related data sets that are likely to be of interest.
- Type: compound
- Short Name: crossref