What does change detection assess in the context of geospatial analysis?

Change detection in geospatial analysis specifically focuses on monitoring and evaluating changes in landscapes over time. This process involves the use of satellite imagery, aerial photography, and various geographic information systems (GIS) to identify alterations in land use, natural resources, urban development, and environmental conditions. By analyzing differences between images or datasets collected at different times, analysts can track phenomena such as deforestation, urban expansion, or the effects of natural disasters.

This methodology is critical for various applications, including urban planning, environmental management, and disaster response. It enables decision-makers to have a clearer understanding of how landscapes are evolving and to implement informed strategies for resource management, conservation, or infrastructure development. The emphasis on landscape changes distinguishes this concept from the other choices, which focus on different areas of analysis unrelated to geospatial changes.