Library of Congress >> MARC >> Bibliographic >> 01X-09X  >> 034

034 - Coded Cartographic Mathematical Data (R)


MARC 21 Bibliographic - concise
November 2021

Contains cartographic mathematical data, including scale, projection, and/or coordinates in coded form. For digital items, the coordinates can represent a bounding rectangle, the outline of the area covered and/or the outline of an interior area not covered. For celestial charts, it may also contain zone, declination data, and/or right ascension data, and/or equinox. For cartographic material, there should be an 034 field corresponding to each 255 field in a record.

For non-cartographic materials (i.e., images, graphic materials, textual materials, etc.), geographic coordinates are recorded to represent the position of the structure, site or feature depicted or described in the resource, or the geographic location from which the image was captured. In this case, geographic coordinates may be recorded in field 034 without the presence of a corresponding field 255 in the record.

Indicators

First - Type of scale   Specifies the type of scale information given.
0 - Scale indeterminable/No scale recorded

Used when no representative fraction is given in field 255 or no field 255 is present in the record.

1 - Single scale
3 - Range of scales
Second - Type of ring
# - Not applicable
0 - Outer ring
1 - Exclusion ring

Subfield Codes

$a - Category of scale (NR)
One-character alphabetic code indicating the type of scale of the item.
Used even when a specific scale is not recorded (first indicator position contains value 0). For non-cartographic materials (i.e. images, graphic materials, textual materials, etc.) subfield $a is not used. The codes used in subfield $a are:
a - Linear scale
b - Angular scale
z - Other type of scale
$b - Constant ratio linear horizontal scale (R)
Denominator of the representative fraction for the horizontal scale.
$c - Constant ratio linear vertical scale (R)
Denominator of the representative fraction for the vertical scale of relief models and other three-dimensional cartographic items.
$d - Coordinates - westernmost longitude (NR)
$e - Coordinates - easternmost longitude (NR)
$f - Coordinates - northernmost latitude (NR)
$g - Coordinates - southernmost latitude (NR)
Subfields $d, $e, $f, and $g always appear together. The coordinates may be recorded in the form hdddmmss (hemisphere-degrees-minutes-seconds), however, other forms are also allowed, such as decimal degrees. The subelements are each right justified and unused positions contain zeros.
$h - Angular scale (R)
Scale, if known, for celestial charts.
$j - Declination - northern limit (NR)
$k - Declination - southern limit (NR)
$m - Right ascension - eastern limit (NR)
$n - Right ascension - western limit (NR)
Subfields $j and $k are each eight characters in length and record the declination in the form hdddmmss (hemisphere-degrees-minutes-seconds). The degree, minute and second elements are each right justified and the unused positions contain zeros. (If declination of center is known, it is repeated in both subfields).
Subfields $m and $n are each six characters in length and record the right ascension in the form hhmmss (hour-minute-seconds). The hour, minute and second elements are each right justified and the unused positions contain zeros. (If the right ascension of center is known, it is repeated in both subfields).
$p - Equinox (NR)
Equinox or epoch for a celestial chart. Usually recorded in the form yyyy (year) according to the Gregorian calendar, but may include a decimal including the month in the form yyyy.mm (year-month).
$r - Distance from earth (NR)
Distance of celestial bodies, such as planets or stars, from the Earth in light-years in star atlases.
$s - G-ring latitude (R)
$t - G-ring longitude (R)
$x - Beginning date (NR)
Beginning of the time frame specific to the coordinates. The date is structured in the form of yyyymmdd. When no date is recorded, it is assumed that the coordinate information is current.
$y - Ending date (NR)
Ending of the time frame specific to the coordinates. The date is structured in the form of yyyymmdd. When no date is recorded, it is assumed that the coordinate information is current.
$z - Name of extraterrestrial body (NR)
Name of a planet or other extraterrestrial body specified when the coordinate data recorded in subfields $d, $e, $f and $g do not describe an entity on Earth.
$0 - Authority record control number or standard number (R)
See description of this subfield in Appendix A: Control Subfields.
$1 - Real World Object URI (R)
See description of this subfield in Appendix A: Control Subfields.
$2 - Source (NR)
MARC code that identifies the source of the data recorded in field 034. If different sources are recorded, separate fields should be used. Code from: Cartographic Data Source Codes.
$3 - Materials specified (NR)
Information that specifies the part of the entity to which the field applies.
$6 - Linkage (NR)
See description of this subfield in Appendix A: Control Subfields.
$8 - Field link and sequence number (R)
See description of this subfield in Appendix A: Control Subfields.

Examples

034 1#$aa$b100000
034 0#$aa
034 1#$aa$b744000$c96000
034 1#$aa$b253440$dE0790000$eE0860000$fN0200000$gN0120000
034 1#$aa$dE079.533265$eE086.216635$fS012.583377$gS020.419532
034 1#$aa$d+079.533265$e+086.216635$f-012.583377$g-020.419532
034 0#$dW0735848$eW0735848$fN0404554$gN0404554
034 0#$ab$jN0300000$kN0300000$m021800$n021800
034 0#$ab$p1950
034 0#$dE0110000$eE0320000$fN0690000$gN0550000$x17210000$y19171200
034 0#$dE0110000$eE0240000$fN0690000$gN0550000$x19171200
034 0#$dW2450000$eE2570000$fN0160000$gN0190000$zMars$2gpn

Library of Congress >> MARC >> Bibliographic >> 01X-09X  >> 034
(11/24/2021)
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