Abstract:
Topographic map is of great importance for the professional activities of an
Agricultural Engineer. Natural resource map is a type of topo map.This map is an
important prerequisite for soil and water conservation planning, design and planning
of irrigation and drainage networks, farm infrastructure and other developments in
agricultural field.This project work mainly focused on the preparation of natural
resource map of KCAET, Tavanur using modern surveying equipments such as Total
Station (Pentax_R200) and DGPS (Trimble). Using the field collected data from
Total Station, a topographic map was plotted using ArcGIS10.3 software. TIN, DEM,
contour map, slope map and flow accumulation map were generated from this
topographic map. In GNSS survey, post-process kinematic survey method was
adopted. Post- processing of field collected data was done in Trimble Business Center
software. The base line report obtained by exporting the data from the software
provides the longitude, latitude, elevation, easting and northing etc. of the field point.
It was found that, in Kerala terrain (with dense canopy) working with DGPS alone
does not give good result whereas, in combination with TSS gives better and more
satisfactory results. A contour map and slope map with good accuracy and great
speed were generated and they can be used to accommodate various engineering
planning requirements.
