What is the primary purpose of GPS in remote sensing applications?

The primary purpose of GPS in remote sensing applications is to provide accurate location data for positioning and alignment. GPS, or Global Positioning System, uses a network of satellites to determine precise geographic coordinates (latitude, longitude, and altitude) anywhere on Earth. This capability is crucial in remote sensing as it allows researchers and operators to know exactly where a sensor is taking measurements.

Accurate positioning is essential for correlating data collected from various sensors and for aligning images taken at different times. For example, in environmental monitoring or mapping, knowing the exact location helps in the accurate analysis of changes over time in land use, vegetation, or urban development.

While enhancing image resolutions, monitoring atmospheric conditions, and improving data interpretation are important aspects of remote sensing, they do not primarily rely on GPS technology. Instead, they involve different techniques and technologies aimed at increasing the quality of the data processed and analyzed. In contrast, the GPS system fundamentally underpins the spatial accuracy that is necessary for effective remote sensing applications.