SECTION 1 
LAND SURVEY OPERATIONS 
  
UNIVERSITY OF ABERDEEN, Department of Geography 
Large scale topographic maps have been plotted for a variety of users in three 
parts of north east Scotland. 
UNIVERSITY COLLEGE OF WALES, ABERYSTWYTH, Department of Geograph 
River floodplain, flood and inter-tidal area mapping has continued, mainly on 
Welsh rivers, using a Santoni Stereosimplex IIID and a Kern PG 2-L with ER] 
and appropriate computer backup. The application of digital terrain models and 
observed flood data to the prediction of washland limits is being investigated. 
BKS SURVEYS LIMITED 
During the period under review, BKS Surveys Ltd have completed some 1500 
separate mapping projects. A total of 165 000 aerial photographs have been 
taken at scales varying from 1:3000 to 1:75 000. Whilst the amount of mapping 
undertaken in the United Kingdom has decreased over this period, this trend 
has been reversed overseas where the company has mapped more than 40 000 kix. 
in 25 countries at scales varying from 1:250 to 1:50 000, of which some 10 000 
km^ were at scales of 1:10 000 or larger. 
The most noticeable trend during the four year period has been the increasing 
popularity of orthophotography as a mapping medium. The company's three 
orthophoto instruments have mapped an area in excess of 20 000 km? in four 
continents (53). There has also been a marked increase in the quantity of digital 
data produced, both for aerial triangulation and for digital terrain models. The 
string contour digital terrain model technique for highway design has under gone 
further development (87). 
BRITISH ANTARCTIC SURVEY 
Recent developments in photogrammetric mapping for British Antarctic Survey 
(136, 137) are recorded under the entry for Directorate of Overseas Surveys. 
BRITISH PETROLEUM COMPANY LIMITED 
Air survey plots of limited areas of oil development, particularly in Shetland and 
Abu Dhabi, uncontrolled mosaics of oil installations, and semi-controlled maps 
for an university natural history expedition have been produced. 
UNIVERSITY OF CAMBRIDGE, Committee for Aerial Photography 
The Committee has sponsored regular programmes of aerial reconnaissance and 
photography to provide the University with material for teaching and researcn.