Month: January 2019

How EMR Interacts with Earth Surface Features

In this article, we will discuss how electromagnetic radiation interacts with objects present on earth surface. EMR interaction with earth surface is one of the main component of remote sensing. The electromagnetic radiation reaching the earth surface interacts with various objects such as vegetation, land surface, buildings etc., present on the earth surface. Depending on …

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Spatial Database Management System – GIS Database Concepts

Database is one of the most popular and widely used concept in many applications. GIS also makes use of database for handling and efficiently managing the data through spatial database management system. GIS databases store spatial data for providing spatial information. In this article, we will learn about following important concepts related to database and …

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electro magnetic spectrum

Concepts of Electromagnetic Spectrum

In this article we will learn about various concepts of electromagnetic spectrum. Electromagnetic energy generated from a source (Sun) is regarded as a continuum of energy. All wavelengths of energy exist in the continuum. When the distribution of electromagnetic energy is plotted against wavelength or spectrum it is regarded as electromagnetic spectrum. What is Electro …

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Electromagnetic Radiation Properties and Laws

In the previous article, we have defined what is remote sensing and what are various constituents or stages of remote sensing. In this article, you are going to learn what is electromagnetic radiation and its importance. You will also understanding electromagnetic radiation properties and different laws that characterize electromagnetic radiation. Electromagnetic radiation is one of …

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What is Remote Sensing – Basics, Introduction and Components

What is Remote Sensing? – Definition “Remote Sensing can be defined as the science and art of obtaining information about an object, area or phenomenon through the analysis of data acquired by a device which is not in contact with the object, area or phenomenon under investigation by making use of electromagnetic radiation.” The above …

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Different Types of Projection Systems Used in GIS Maps

In this article we will learn about, what is a map projection, how map projections are classified and what are different types of projection systems used in GIS for preparing maps etc. Following are the key questions one can address easily after reading this article. What is a Map projection Classification projection systems/ Projected Coordinate …

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Concept of Coordinate Reference System in GIS

What are 2 Types of Coordinate Reference Systems in GIS?

In this article we will learn various concepts related to coordinate reference system in GIS. Coordinate reference system is very important in preparing a map. The location of a place or object is represented using the coordinates in map. Coordinate system used for preparing the map plays a key role in identifying the coordinates for …

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