What does the symbol λ represent in remote sensing?

In the context of remote sensing, the symbol λ represents wavelength, which is a fundamental concept in understanding electromagnetic radiation. Wavelength is the distance between consecutive peaks of a wave, and it is crucial in determining the characteristics of different segments of the electromagnetic spectrum, including visible light, infrared, and microwaves.

Different wavelengths correspond to different types of energy and effects when interacting with various materials in the environment. For instance, in remote sensing applications, sensors capture images and data across various wavelengths to identify and analyze surface features, vegetation health, and atmospheric conditions.

Understanding wavelength helps in interpreting the data collected from satellites and other remote sensing instruments. It also plays a role in how such data is processed, as different wavelengths can penetrate through clouds, vegetation, or water to varying extents, allowing for more accurate analysis and insights into the Earth's surface.