Final answer:
Active remote sensing technologies have advantages like cloud penetration, accurate measurements, and all-day coverage, but also have disadvantages such as expensive equipment and complex data processing.
Step-by-step explanation:
Advantages of active remote sensing technologies:
Penetrates clouds: Active remote sensing technologies, such as radar, use their own energy source to illuminate the target. This allows them to penetrate cloud cover and gather data even in unfavorable weather conditions.
Provides accurate measurements: By emitting a known source of energy and measuring the energy that is reflected back, active remote sensing technologies can provide accurate measurements of various environmental parameters, such as surface elevation, vegetation density, and water content.
All-day coverage: Active remote sensing technologies can be operated at any time, which allows for continuous data collection over large areas, including during nighttime.
Disadvantages of active remote sensing technologies:
Expensive equipment and maintenance: Active remote sensing technologies, such as LiDAR or radar systems, require expensive equipment and regular maintenance to ensure accurate and reliable data collection.
- Complex data processing: The data collected by active remote sensing technologies often requires extensive processing and analysis to extract meaningful information.
- This can be time-consuming and require specialized knowledge and software..