Improvised Survey Techniques to Create a Digital Elevation Surface
INTRODUCTION This lab demonstrates the ability to think spatially to measure and produce a digital terrain model. This was done by creating a custom topography in a sandbox and devising a grid-system and sampling method to best represent this topography digitally. Sampling can be defined as part or single item that is representative of a larger group. In a spatial perspective, it needs to be able to allow for enough data to create an accurate representation of an area or object. Common sampling techniques include: Simple random sampling Stratified sampling Cluster sampling Systematic sampling Multistage sampling Multiphase sampling Convenience sampling Purposive sampling METHODOLOGY A systematic sampling method was used to record data because it allowed for a controlled method capturing all surface elevations of features while not sacrificing time. A random sampling method was not used because although faster, would not capture all features to the same degree of accu...