This article throws light upon the five main types of salt affected soils found in India. The types are: 1. Saline Soils 2. Coastal Saline Soils 3. Sodic Soils 4. Acid Sulphate Soils 5. Potential Acid Sulphate Soils. Salt Affected Soil: Type # 1. Saline Soils: Soluble salts containing chlorides and sulphates of sodium, calcium and magnesium accumulate in soils. [...]
After reading this article you will learn about:- 1. Definition of Remote Sensing 2. Devices used for Remote Sensing 3. General Utility 4. Types 5. Stages 6. Basic Concept 7. Sensors used 8. Potential Applications. Definition of Remote Sensing: The term remote sensing was introduced in USA in the late 1950s to attract funding from the US office of Naval [...]
This article throws light upon the six most common techniques used for enhancement of an image. The techniques are: 1. Contrast Enhancement 2. Pseudo-Colour Enhancement—Density Slicing 3. Density Slicing 4. Image Enhancement through Basic Numerical Calculations 5. Edge Enhancement 6. Filtering. Technique # 1. Contrast Enhancement: Remote sensing systems record reflected and emitted energy from earth materials. Ideally, one material [...]