Data were collected using GNSS survey methods, with a differential GPS operating in Real Time Kinematic (RTK) mode. Data from prior to 2013 were typically collected with a Magellan ProMark 3 tradition
The data are divided into two parts:(1) In the original folder, there are original contour lines , boundary of contours and corresponding DEM(2)The extraction results including extracted feature point
Terrain analysis uses different workflows to extract features from terrain models for the purpose of understanding topographic patterns and processes. However, the results of different workflows often