GISMaark IT has a wide network of surveyors who assist various governmental as well as private organisation in
completion of manual survey. They also play an important role in creation of detail oriented navigational maps.
Digital Terrain Models (DTMs)
Legal Mapping Surveys
Natural Resources Surveys
Real Estate Surveys
Urban Sprawl Surveys
Utility Mapping Surveys
GPS or Global Positioning System provides location and time information in all weather conditions, anywhere on or
near the Earth where there is an unobstructed line of sight to four or more GPS satellites. It is used in ground
truthing of land use land cover maps.
DGPS or Differential GPS survey provides improved location accuracy, from the 15-meter nominal GPS accuracy to about
10 cm in case of the best implementations. It is undertaken in two methods: Real Time Kinetic mode and Rapid Static mode.
In both the methods, primary control points (PCPs) are required to be set up before taking up detailed survey on all
pillar positions that compose the forest area.
TS or total survey is an electronic/optical instrument used in modern surveying and building construction. It is useful
to the mining, electrical and mechanical industries.
ETS is used determine geo-coordinates of secondary control points. Integrated ETS equipment is used to conduct such surveys.
They are useful for forestry surveys.