- 257 » 
With respect to first degree courses, a restriction argued above, 
Level a would permit competent performance in a professional position in 
photogrammetry or remote sensing with only minimal further training, which 
could be provided 'on-the-job' (as an'active'worker in remote sensing or 
photogrammetry in Hothmer's sense). Level b is assumed to provide a 
sufficient understanding of principles to be able to appreciate the 
potential and limitations of photogrammetry and remote sensing if the 
geographer is in a professional post in a related field which uses results 
of photogrammetric and remote sensing work, or to provide a basis on which 
further training for a professional post in photogrammetry or remote 
sensing can be soundly built (a 'passive' worker in photogrammetry or 
remote sensing). Level c provides a minimal understanding in which very 
basic principles are inculcated, but which would almost certainly require 
further postgraduate training of some kind before useful professional work 
of any sort in photogrammetry or remote sensing could be accomplished. 
At each of these levels, appropriate practical laboratory and field 
experience are considered essential or desirable. This may or may not be 
provided in a first degree course, depending on the institution. Further 
expansion of this necessity is made below, but in general, such experience 
is desirable but not necessarily essential for Level C, and essential to 
different extents for Levels a and b. 
Such laboratory, field and project work should be assessed as part of 
the course work, in order to ensure that it has been adequately completed 
and understood. 
CURRICULA 
Basic subjects 
For any geographer working mainly on the physical side of the subject, 
particularly in photogrammetry, remote sensing and related fields, 
experience that is as wide and deep as possible in the basic sciences is 
desirable, particularly mathematics, physics, geology, botany and 
chemistry. While a sound detailed knowledge of all these subjects is 
rarely possible for any individual, a scientific background is desirable 
for Level b and essential for Level a. Preferred sciences would probably 
be in the order of those listed above. 
  
Much of this knowledge will probably be acquired either before the 
first degree course or as subsidiary subjects in the first degree course. 
Support subjects 
  
Essential for almost any geographer's education, particularly for 
those likely to be involved in photogrammetry and remote sensing, are a 
working knowledge of such subjects as | 
Statistics - parametric and non-parametric methods, 
multivariate and spatial analysis. 
Computing - knowledge of computer systems and input/output 
devices, uses of package programs, particularly statistical 
packages. Capability of programming in at least one language, 
preferably Basic and/or Fortran. Knowledge of the principles 
of automated data gathering and processing and of geographical 
information systems. 
Hardy 4