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514  Data Quality Note (NR)

Input Standards

Optional/Optional
1st Indicator  Undefined
blank character Undefined
2nd Indicator  Undefined
blank character Undefined
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards
‡a Attribute accuracy report (NR) Required if applicable/Required if applicable
‡b Attribute accuracy value (R) Required if applicable/Required if applicable
‡c Attribute accuracy explanation (R) Required if applicable/Required if applicable
‡d Logical consistency report (NR) Required if applicable/Required if applicable
‡e Completeness report (NR) Required if applicable/Required if applicable
‡f Horizontal position accuracy report (NR) Required if applicable/Required if applicable
‡g Horizontal position accuracy value (R) Required if applicable/Required if applicable
‡h Horizontal position accuracy explanation (R) Required if applicable/Required if applicable
‡i Vertical positional accuracy report (NR) Required if applicable/Required if applicable
‡j Vertical positional accuracy value (R) Required if applicable/Required if applicable
‡k Vertical positional accuracy explanation (R) Required if applicable/Required if applicable
‡m Cloud cover (NR) Required if applicable/Required if applicable
‡u Uniform Resource Identifier (R) Optional/Optional
‡z Display note (R) Optional/Optional

Definition

A note about the general assessment of the quality of the data set constituting the item. Use primarily for cartographic materials.

MAP

For cartographic materials, use for recommendations on tests to be performed and information to be reported. Find more information about such tests in the Spatial Data Transfer Standard.

1st Indicator

Undefined. The 1st indicator position is undefined and contains a blank ( blank character ).

blank character

Undefined

2nd Indicator

Undefined. The 2nd indicator position is undefined and contains a blank ( blank character ).

blank character

Undefined

Subfields

 
‡a Attribute accuracy report

An explanation of the accuracy of the identification of the entities and assignments of values in the data set. Use also to include a description of the tests used to determine data quality.

514     The map layer that displays Special Feature Symbols shows the approximate location of small (less than 2 acres in size) areas of soils... ‡d Quarter quadrangles edited and joined internally and to surrounding quads. All known errors corrected. ‡e The combination of spatial linework layer, Special Feature Symbols layer, and attribute data are considered a complete SSURGO dataset. ‡f The actual on ground transition between the area represented by the Special Feature Symbol and the surrounding soils generally is very narrow with a well defined edge. The center of the feature area was compiled and digitized as a point. The same standards for compilation and digitizing used for line data were applied to the development of the special feature symbols layer.
514     Low resolution image.
514     NED has a resolution of one arc-second (approximately 30 meters) for the conterminous United States, Hawaii and a resolution of two arc-seconds for Alaska.
‡b Attribute accuracy value

An estimate of the accuracy of the identification of the entities and assignments of values in the data set.

514     ‡b Approximately 95%.
‡c Attribute accuracy explanation

A definition of the thematic accuracy measure.

514     ‡c Village names compared to source map--all match, therefore errors are possible only if source maps are incorrect.
‡d Logical consistency report

The fidelity of the relationships in the data set and the tests used.

514     ‡d No duplicate features are present. The shapefile is exported using Avenue request ExportClean. This request verifies and enforces the correctness of shapes.
‡e Completeness report

The definitions used, generalizations, omissions, selection criteria, and other rules used to derive the data set.

514     ‡e After processing, the data set is checked for drawing display and number of records and file sizes compared with source materials. Some of the cartographic problems with this data inherent in the original 1:100,000 USGS Topographic Quadrangle source data remain in that the density of features can be changed abruptly.
‡f Horizontal position accuracy report

The accuracy of the horizontal coordinate measurements and a description of the tests used. Use of subfield ‡f is generally limited to cartographic materials.

514     ‡f The geospatial part of this data set was extracted from the 1990 Census Version TIGER/LineTM files (CD-ROM edition). The positional accuracy of the TIGER/Line coordinates at best meets the established National Map Accuracy standards (+/- 167 feet approximately) for the 1:100,000-scale source maps from the USGS. The level of positional accuracy in the TIGER/Line files is not suitable for high-precision measurement applications such as engineering problems, property transfers, or other uses that might require highly accurate measurements of the earth's surface.
‡g Horizontal position accuracy value

An estimate of the accuracy of the horizontal coordinate measurements in the data set expressed in (ground) meters. Use of subfield ‡g is generally limited to cartographic materials.

514     ‡g 3 meters.
‡h Horizontal position accuracy explanation

A definition of the horizontal positional accuracy measure. Use of subfield ‡h is generally limited to cartographic materials.

514     ‡h Estimated maximum ground distance error in meters. A color hard copy of the Arabian Peninsula geology at 1:2,000,000 scale is superimposed onto the original Geologic Map of the Arabian Peninsula, 1:2,000,000 scale. For the Iraq portion of the Arabian Peninsula, a color hard copy of the Iraq geology at 1:5,000,000 scale is superimposed onto the original Geologic Map of Europe, Eastern sheet, 1:5,000,000 scale.
‡i Vertical positional accuracy report

The accuracy of the vertical coordinate measurements and a description of the tests used. Use of subfield ‡i is generally limited to cartographic materials.

514     ‡i Although depths are reported to the nearest 1 km, the accuracy for recent earthquakes is considerably less owing to uncertainties in the velocity model of the earth, uneven distribution of seismic stations, and imprecisions in the computational algorithms. For earlier earthquakes, accuracy drops considerably more.
514     ‡i Bar test.
‡j Vertical positional accuracy value

An estimate of the accuracy of the vertical coordinate measurement in the data set expressed in (ground) meters. Use of subfield ‡j is generally limited to cartographic materials.

514     ‡j One foot.
‡k Vertical positional accuracy explanation

A definition of the vertical positional accuracy measure. Use of subfield ‡k is generally limited to cartographic materials.

514     ‡k Bar check.
‡m Cloud cover

An area of a data set obstructed by clouds, expressed as a percentage of the geospatial extent. Use of subfield ‡m is generally limited to cartographic materials.

514     ‡m 60%.
‡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 if digital object has multiple identifiers (URIs).

514     ‡u http://spatialnews.geocomm.com/whitepapers/sdts-demmap.pdf.
 

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

1 Because the Spacing Underscore may cause problems with MARC output, users may prefer to continue entering it with the hexidecimal value %5F.

‡z Display note

A note that introduces the data in the field.

514 ‡z National elevation dataset FGDC compliant metadata: ‡u http://gisdata.usgs.net/NED/fgdcmetadata.asp.

Printing

Field 514 does not print.

This page last revised: August 4, 2014