Application of GIS in Poverty mapping

https://www.researchgate.net/publication/359648954_Multidimensional_Poverty_Index_KarnatakaTamil_Ndau_and_Kerala_GIS

Multidimensional Poverty Index. Karnataka,Tamil Ndau and Kerala.

DOI:10.13140/RG.2.2.36431.56486

Application of GIS in Poverty mapping .

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Geometric Correction

When satellite or aerial images are captured, they often contain distortions (errors in shape, scale, or position) caused by many factors — like Earth's curvature, satellite motion, terrain height (relief), or the Earth's rotation . These distortions make the image not properly aligned with real-world coordinates (latitude and longitude). 👉 Geometric correction is the process of removing these distortions so that every pixel in the image correctly represents its location on the Earth's surface. After geometric correction, the image becomes geographically referenced and can be used with maps and GIS data. Types 1. Systematic Correction Systematic errors are predictable and can be modeled mathematically. They occur due to the geometry and movement of the satellite sensor or the Earth. Common systematic distortions: Scan skew – due to the motion of the sensor as it scans the Earth. Mirror velocity variation – scanning mirror moves at a va...

Radar Sensors in Remote Sensing

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Unmanned Earth Resources Satellites

Unmanned Earth resources satellites are satellites equipped with remote sensing instruments used to collect images and environmental data from the Earth's surface without a crew onboard. They help monitor: land use vegetation soil and water resources climate oceans atmosphere natural hazards These satellites are grouped based on the type of radiation they measure and the sensors they carry. Five Groups of Unmanned Earth Resources Satellites Remote sensing satellites can be categorized into five main groups , based on the wavelengths they record and the type of environmental information they collect. First-Generation Earth Resources Satellites Wavelength region: Visible and Near-Visible (VNIR) ✔ Characteristics Use multispectral scanners Record reflected sunlight Mainly for land use, vegetation, and surface mapping ✔ Example Landsat series (Landsat 1, 2, 3) These were the first generation of Earth resource sate...

Unmanned Aerial Vehicles

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