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Geographic Information System

What is LIDAR?

Importance Remote Sensing

LIDAR is a remote sensing technology that stands for light detection and ranging which uses the pulse from a laser to collect data that helps to measure and create 3D models and maps of distant objects and environments. A LIDAR system works in a way that is similar to radar and sonar but instead of

What are Contour lines | Types, Application & Features

Contour Lines

A contour line is a curve that joins points of equal value. In cartography, contour lines join the points of equal elevation above a given standard level like the mean sea level. A contour map is a map to illustrate the topographical features of an area using contour lines. It is often used to show

Types of Remote Sensing

Importance Remote Sensing

Remote sensing is the science of acquiring information about an object or the surface of the earth by measuring the energy that is emitted or reflected back from the surface. There are two basic types of remote sensing; Active and Passive remote sensing. Although the difference between the two is very minimal but the quality and functionality

Digital Elevation Model

Digital Elevation Model

All the imageries that are collected, be it the satellite imageries or UAV data, all are 2D imagery. But for relevant study, it is at times required to understand the images in a more realistic approach. Hence, to understand better and make the images real, elevation is required. Elevation can be used for a lot

What is satellite mapping & imaging?


The spatial imageries derived from the satellite are in the raw form.  Many of the images are from the various satellites and has come in many different positions and is unfiltered. These are normally the digital photos which lack much information in correspondence to the earth’s surface. Since these raw images do not have any