Describe the problem of conflation associated with aggregation of data collected at different times, from different sources, and to different scales and accuracy requirements
Explain how geostatistical techniques might be used to address such problems
List the likely sources of error in slope and aspect maps derived from digital elevation models (DEMs) and state the circumstances under which these can be very severe
Outline how higher order derivatives of height can be interpreted
Explain how slope and aspect can be represented as the vector field given by the first derivative of height
Explain why the properties of spatial continuity are characteristic of spatial surfaces
Explain why zero slopes are indicative of surface specific points such as peaks, pits, and passes, and list the conditions necessary for each
Design an algorithm that calculates slope and aspect from a triangulated irregular network (TIN) model
Outline a number of different methods for calculating slope from a DEM
AM-87 - Problems of currency, source, and scale