Earth Observation Basics

This lecture covers the fundamentals of Earth observation, focusing on the principles of optical remote sensing, the types of Earth observation sensors, and the historical evolution of Earth observation techniques. It also explores the importance of Earth observation in various fields such as geology, agriculture, forestry, hydrology, and urban planning. The lecture delves into topics like satellite imagery analysis, vegetation indices, spectral signatures, image resolution, and the use of drones and GIS in emergency response. Additionally, it discusses the creation of images, spectral resolution, and the classification of land cover using machine learning techniques.

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Geology

Geology () is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology. It is integrated with Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface and the processes that have shaped that structure.

Urban planning

Urban planning, also known as town planning, city planning, regional planning, or rural planning, is a technical and political process that is focused on the development and design of land use and the built environment, including air, water, and the infrastructure passing into and out of urban areas, such as transportation, communications, and distribution networks and their accessibility.

Forestry

Forestry is the science and craft of creating, managing, planting, using, conserving and repairing forests and woodlands for associated resources for human and environmental benefits. Forestry is practiced in plantations and natural stands. The science of forestry has elements that belong to the biological, physical, social, political and managerial sciences. Forest management plays an essential role in the creation and modification of habitats and affects ecosystem services provisioning.

Theories of urban planning

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Reconnaissance satellite

A reconnaissance satellite or intelligence satellite (commonly, although unofficially, referred to as a spy satellite) is an Earth observation satellite or communications satellite deployed for military or intelligence applications. The first generation type (i.e., Corona and Zenit) took photographs, then ejected canisters of photographic film which would descend back down into Earth's atmosphere. Corona capsules were retrieved in mid-air as they floated down on parachutes.