MARC 21 Concise Format for Bibliographic Data: 034: Coded Cartographic Mathematical Data (Network Development and MARC Standards Office, Library of Congress)

Coded form of the mathematical data contained in field 255 (Mathematical Data Area) of the bibliographic record.

First - Type of scaleSpecifies the type of scale information given.

0 - Scale indeterminable/No scale recorded

Used when no representative fraction is given in field 255.

1 - Single scale

3 - Range of scales

$a - Category of scale (NR)

One-character alphabetic code indicating the type of scale of the item.

a - Linear scale

b - Angular scale
Used for celestial charts.

z - Other type of scale
Any other type of scale, for example, a time scale, quantitative statistical scale, etc.

$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 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).

Subfield $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 date period of the data in which the coordinates describe. 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 date period of the data in which the coordinates describe. 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.

$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: MARC Code Lists for Relators, Sources, Description Conventions.

$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.


034	1#$aa$b253440$dE0790000$eE0860000$fN0200000$gN0120000[The above two examples illustrate records for flat maps or flat maps in atlases.]


034	##$dE0110000$eE0320000$fN0690000$gN0550000$x17210000$y19171200$2[code for Hammond atlas of world history]
034	##$dE0110000$eE0240000$fN0690000$gN0550000$x19171200 $2[code for The statesman's year-book][Coordinates for Sweden showing period when Finland was part and then separated]


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	##$dW113.0000$eW113.0000$fN000.0000$gN000.0000$zMars $2[code for Mars Global Surveyor]


034	1#$aa$b100000


034	0#$aa


034	1#$aa$b744000$c96000


034	0#$ab$jN0300000$kN0300000$m021800$n021800

034 - Coded Cartographic Mathematical Data (R)