----------------------------Original message----------------------------
What follows is the text of a proposal the MAGERT Cataloging and
Classification Committee hopes to have discussed at the ALA Midwinter
meeting.  Prior to the discussions, we would like to have some input
from the rest of the map community.  Please get any comments to Susan
Moore by September 29th.
 
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1. INTRODUCTION
 
This proposal from the Map and Geography Round Table Committee on
Cataloging and Classification requests adding additional
character positions to the 007 field for maps in order to
adequately describe the physical description details of
remote-sensing images.  Adding character positions 08-13 will
accommodate information relative to remote-sensing images (i.e.,
when character position 01 contains the value r).  For all other
values in character position 01 these additional character
positions would be set to n for not applicable.  As
remote-sensing images become more widely available and as the
platforms from which the images are taken become more diverse,
the need for providing an area to describe the physical aspects
of the images grows.
 
2. PROPOSED CHANGES
 
Character
Position       Description
 
  08           Altitude of sensor
                    a         terrestrial (on Earth)
                    b         aerial (from aircraft, balloon,
                              etc.)
                    c         space (from spacecraft)
                    u         unknown
                    n         not applicable
                    z         other
 
  09           Attitude of sensor
                    a         low oblique (without horizon)
                    b         high oblique (shows horizon)
                    c         vertical
                    u         unknown
                    n         not applicable
                    z         other
 
  10           Cloud cover
                    0           0-9%
                    1         10-19%
                    2         20-29%
                    3         30-39%
                    4         40-49%
                    5         50-59%
                    6         60-69%
                    7         70-79%
                    8         80-89%
                    9        90-100%
                    u        unknown
                    n        not applicable
 
  11           Type of platform
                    a         balloon
                    b         aircraft--low altitude (<29,500
                              ft.)
                    c         aircraft--medium altitude (29,500-
                              49,000 ft.)
                    d         aircraft--high altitude (>49,000
                              ft.)
                    e         manned spacecraft
                    f         unmanned spacecraft
                    u         unknown
                    n         not applicable
                    z         other
 
12             Category of platform
                    a         meteorological
                    b         earth resources
                    c         space observing
                    m         multi-tasking
                    u         unknown
                    n         not applicable
 
13             Recording technique
                    a         light emission
                    b         thermal infrared scanning
                    c         microwave emission
                    u         unknown
                    n         not applicable
                    z         other
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Please return any comments by Sept. 29th to Susan Moore, University of
Arizona.
 
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