Definition | A note about the information content of the data set, including the entity types, their attributes and the domains from which the attribute values may be assigned. |
1st Indicator | Undefined. The 1st indicator position is undefined and contains a blank (  ). |
| | | | Undefined | |
2nd Indicator | Undefined. The 2nd indicator position is undefined and contains a blank ( ). |
| | | | Undefined | |
Subfields | |
| ‡a Entity type label | The name of the set into which similar entity instances are classified. | 552 | | | Elevation point ‡b a point of known elevation ‡c Elevation ‡d altitude above or below a reference datum ‡g 999 to 2641 ‡j meters. | |
| ‡b Entity type definition and source | The description of the entity type and authority of the definition. | 552 | | | Scale bar and text, title information text ‡b Level 1, Green. | |
| ‡c Attribute label | The name of a defined characteristic of an entity. | 552 | | | soil type ‡b soil mapping unit polygon (SCS) ‡c numbered ‡d soil category, user-defined ‡g 1-4 ‡j integer ‡k 19940809-19940812 ‡l untested. | |
| ‡d Attribute definition and source | The description of a defined characteristic of an entity and the authority of the definition. See subfield ‡c example. |
| ‡e Enumerated domain value | The name or label of a member of an established set of valid values. | 552 | | | ‡c AREA ‡d Area of poly/region in square coverage units, computer ‡e positive real numbers; Source: Circum-Arctic Map of Permafrost and Ground-Ice Conditions. | |
| ‡f Enumerated domain value definition and source | The description of the value and the authority of the definition. | 552 | | | FED_BND.PAT ‡b polygon attribute table for fed_bnd, computed ‡e 12 ‡f floating, USGS. | |
| ‡g Range domain minimum and maximum | The least and greatest values of a continuum of valid values that the attribute can be assigned. | 552 | | | soil type ‡b soil mapping unit polygon (SCS) ‡c numbered ‡d soil category, user-defined ‡g 1-4 ‡j integer ‡k 19940809-19940812 ‡l untested. | |
| ‡h Codeset name and source | The title of a standard or list which contains the members of an established set of valid values and the authority of the standard or list. |
| ‡i Unrepresentable domain | The values and reasons why the domain cannot be represented. |
| ‡j Attribute units of measurement and resolution | The standard of measurement for an attribute value and the smallest unit increment to which an attribute value is measured. | 552 | | | floodplain polygon ‡b 100 and 500 year floodplain zones (FIRM maps (FEMA)) ‡c user-id ‡d floodplain zone, USACERL ‡g 100-500 ‡j Years (time). | |
| ‡k Beginning date and ending date of attribute values | The earliest and latest date for which attribute values are valid. | 552 | | | soil type ‡b soil mapping unit polygon (SCS) ‡c numbered ‡d soil category, user-defined ‡g 1-4 ‡j integer ‡k 19940809-19940812 ‡l untested. | |
| ‡l Attribute value accuracy | An estimate of the accuracy of the assignment of attribute values. See subfield ‡k example. |
| ‡m Attribute value accuracy explanation | The definition of the Attribute Accuracy measure and units and a description of how the estimate was derived. |
| ‡n Attribute measurement frequency | The frequency with which attribute values are added. |
| ‡o Entity and attribute overview | A detailed summary of the information contained in a data set. | 552 | | | ‡o soil polygons with user defined attributes. | |
| ‡p Entity and attribute detail citation | A reference to the complete description of the entity types, attribute and attribute values for the data set. | 552 | | | ‡o Three observables: Carrier-phase measurements, pseudorange (code) measurements, and observation times, as well as station and antenna information ‡p GPS Bulletin, Vol. 3, No. 3, September-October 1990 issue, from the Commission VIII International Coordination of Space Techniques for Geodesy and Geodynamics. | |
| ‡u Uniform Resource Identifier | The Uniform Resource Identifier (URI), for example a URL or URN, provides electronic access data in a standard syntax. Use for automated access to an electronic item using one of the Internet protocols or by resolution of a URN. Repeat subfield ‡u if the digital object has mulitple identifiers (URIs). |
| | Substituting hexadecimal notation for diacritics and special characters in Uniform Resource Identifiers. When recording a URI in subfield ‡u, you may enter most of the spacing characters listed below as either characters or their hexidecimal equivalents. Consult the table below. Note: Do not confuse the spacing characters listed below with their long-valid non-spacing counterparts. Use of the spacing characters will be limited almost exclusively to URLs. | Entry method | Name | Character | Alternative entry (hex value) |
Enter as character or hex value | Spacing circumflex/circumflex accent | ^ | %5E | | Spacing underscore/low line 1 | _ | %5F | | Spacing grave/grave accent | ` | %60 | | Spacing tilde/tilde | ~ | %7E | | Enter as hex value only | vertical bar | n/a | %7C |
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| ‡z Display note | A note that introduces the data in the field. | 552 | | | ‡z Entity values: ‡u [URL] | |
Printing | Field 552 does not print. |
