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Current Remote Sensing Techniques - Research Paper Example

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Remote sensing techniques Institutional Affiliation: Introduction Remote sensing refers to the process of acquiring information about a phenomenon or an object without making contact physically with the object. In the contemporary society, this is generally a process meant for detecting and classifying objects through the use of aerial sensor methodologies of technology…
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Current Remote Sensing Techniques
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Download file to see previous pages There are two major forms of remote sensing. They are: Passive remote sensing. Active remote sensing. Passive remote sensing involves detection of natural radiation that is reflected or emitted by the surrounding areas or the object. Passive remote sensors’ examples are radiometers and film photography. Active remote sensing on the other hand, involves a process of emitting energy that is to be used in scanning objects where a sensor detects and takes the measure of the radiation reflected from the target the examples of this active sensor collection are LiDAR and RADAR. Geography refers to the science that learns more about land, features, inhabitants and generally the phenomena of the globe. Remote sensing in geography therefore, refers to the process of gathering information about a place including the features in it, without necessarily visiting the place in person. This collection technique is done from a distance. In this equipment that is used for gathering information are mainly the cameras which can be based on aircrafts, satellites or on the ground. In the modern society, information obtained is stored up and manipulated in computers. Computers work with software therefore, the software used in remote sensing is ESRI, ERMapper, MapInfo and ERDAS Imagine. Remote sensing is a procedure which must follow certain steps. The steps involved in this process are: A supply of electromagnetic rays. Conduction of energy from the resource to the earth’s surface through the atmosphere Contact of EMR with the surface of the earth. Conduction of power from surface to Remote Sensor build up on a display place, through the atmosphere. Detection of power by the sensor. Conduction of sensor information to ground location Processing and scrutiny of the sensor information Final information output for a range of applications Remote sensing in geography started way back in the year 1858 where photographs were taken aerially from a hot air balloon. This was initiated by Tournachon Gaspard-Felix where he took photographs of Paris. Since then, remote sensing has developed and an example where it was performed after the initiation was in the United States of America. It was undertaken during the civil war where kites, unmanned balloons and messenger pigeons containing cameras were flown over areas where the enemies dwelled. This essay will specifically discuss about remote sensing in geography. This means that information contained therein will be on processes used to gather information on phenomenon and various features of the earth. In the modern society, remote sensing has become part of daily activities as it is highly used to gather information on geographical trends. Most of the organizations in the contemporary society take the initiative to learn more about geographical trends and get to know more about the environment generally. For these organizations to make effective research and gather enough information on phenomena, they have to use lots of cash on this field. This is one among many fields that is considered to be important in current years. The reasons as to why this field is considered important include: 1. Many individuals especially, students, researchers and other common citizens have developed interest in learning more about the environment. In this case, talking about the environ ...Download file to see next pages Read More
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