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thermal infra red remote sensing

Thermal InfraRed Remote Sensing – Basics and Types

History of Thermal InfraRed Remote Sensing: Astronomer Federick W Herschel has discovered thermal portion of electromagnetic spectrum in the year 1800. Detector elements for thermal energy were discovered during the world war – II. This lead to the development of thermal infra red remote sensing. Initially, lead salt photo detectors are used in thermal remote …

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adding shapefile

Adding Attribute Data to the Shape file – ArcGIS Tutorials

In this tutorial you will learn about how to add new attribute data to the shape files. These shapefiles may be are digitized in GIS software or directly added from other source. What is Attribute Data? Attribute data is categorized as non-spatial data in GIS. Though objects are positioned in GIS based on spatial referencing …

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geometry of a vertical aerial photograph

Geometry of a Vertical and Tilted Aerial Photograph

Geometry of Vertical Aerial Photograph: An aerial photograph which is captured while camera axis is present in a true vertical position is termed as vertical photograph. However, most of the aerial photographs are acquired while camera is in a tilted position i.e., from 1 to 3 degrees. Hence, these photographs are also called as tilted …

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High Oblique Aerial Photograph - Barcleos

Types of Aerial Photographs Based on Axis, Lens System and Films

Different types of Aerial photographs are acquired from sensors mounted on airborne platforms. These photographs are classified into types into various factors such as orientation of camera axis, scale of photograph, lens system used, film and filter combinations used in the photography etc.  Aerial photographs classified using various factors are described in this article. Types …

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EMR interaction with earth surface features

How EMR Interacts with Earth Surface Features?

In remote sensing process, electromagnetic energy is subjected to various interactions with earth as well as atmospheric features. In this article, we will learn about how electromagnetic energy (EMR) interacts with earth surface features. Understanding the EMR interaction with earth surface features is very important in various remote sensing studies. Note: You may study about …

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Interaction of energy with atmosphere

How Electro Magnetic Radiation Interacts With Atmosphere?

In this article we will discuss about how interaction of electromagnetic radiation with atmosphere takes place. Electromagnetic radiation (EMR) plays an important role in the process of remote sensing. This electromagnetic radiation travels through the atmosphere before falling onto the earth surface objects. While travelling, various particles and gaseous molecules present in the atmosphere interacts …

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