008/18-21 006/01-04 Relief (Maps)

Codes

Description/Instructions

The relief codes are four one-character alphabetic codes that indicate the relief type specified on the item. The codes used in this field indicate only the relief forms most commonly found on maps and are usually derived from information given in field 500 (General Note). Record up to four codes in the order of their importance to the map being described. The code for the most important relief aspect is given first. If fewer than four codes are assigned, the codes are left justified and unused positions contain blanks (#). If more than four codes are appropriate to an item, record only the four most important.

DEFAULT CODE: ####

Code definitions

# No relief shown.

Use code "#" if no indication of relief appears on the item.

008/18-21 ####

[No note field.]

a Contours.

Use code "a" if relief on the item is shown by contours.

008/18-21 ae##

500 ## Relief shown by contours. Depths shown by soundings.

b Shading.

Use code "b" if relief on the item is shown by shading (generally of a single color).

008/18-21 b###

500 ## Relief shown by shading.

c Gradient and bathymetric tints.

Use code "c" if relief on the item is shown by gradient or bathymetric tints.

008/18-21 c###

500 ## Relief shown by gradient tints.

d Hachures.

Use code "d" if relief on the item is shown by hachures (short lines which follow the direction of maximum slope).

008/18-21 dg##

500 ## Relief shown by hachures and spot heights.

e Bathymetry/soundings.

Use code "e" if underwater relief (depths) on the item is shown by soundings or spot depths.

008/18-21 e###

500 ## Depths shown by soundings.

f Form lines.

Use code "f" if relief on the item is shown by form lines.

008/18-21 f###

500 ## Relief shown by form lines.

g Spot heights.

Use code "g" if relief on the item is shown by spot heights.

008/18-21 g###

500 ## Relief shown by spot heights.

i Pictorially.

Use code "i" if landforms and other topographic features are shown in the correct planimetric position by pictoral symbols representing their appearance from a high oblique view.

008/18-21 i###

500 ## Relief shown pictorially.

j Land forms.

Use code "j" if relief on the item is shown by land forms.

008/18-21 jg##

500 ## Relief shown by land forms, and spot heights.

k Bathymetry/isolines.

Use code "k" if underwater relief (depth) on the item is shown by isolines (lines that represent constant depths).

008/18-21 kb##

500 ## Depths shown by isolines. Relief shown by shading.

m Rock drawings.

Use code "m" if the item is a relief rock drawing.

z Other.

Use code "z" for a relief type for which none of the other defined codes are appropriate.

Related fields, etc.

500

008/18-21 006/01-04 (MARC 21 Format for Bibliographic Data)