active remote sensing

简明释义

1. 主动遥感; 2. 人工源遥感;

英英释义

例句

1.Scientists use active remote sensing techniques to monitor ocean temperatures.

科学家们使用主动遥感技术来监测海洋温度。

2.In forestry, active remote sensing helps in assessing tree height and biomass.

在林业中，主动遥感有助于评估树木高度和生物量。

3.Using active remote sensing, researchers can detect changes in land use over time.

通过使用主动遥感，研究人员可以检测土地利用随时间的变化。

4.The satellite utilizes active remote sensing to capture detailed images of the Earth's surface.

该卫星利用主动遥感捕捉地球表面的详细图像。

5.The application of active remote sensing in agriculture allows for precise crop health monitoring.

在农业中应用主动遥感可以实现精确的作物健康监测。

作文

Active remote sensing is a technique used to gather information about an object or area from a distance. It involves the transmission of energy, such as radar or laser beams, towards the target and then measuring the energy that is reflected back. This method contrasts with passive remote sensing, which relies on natural energy, such as sunlight, to capture images. The significance of active remote sensing (主动遥感) lies in its ability to provide detailed data regardless of weather conditions or daylight availability. For instance, satellites equipped with active sensors can penetrate cloud cover and obtain information about the earth’s surface, making them invaluable for environmental monitoring, disaster response, and urban planning.In recent years, the applications of active remote sensing (主动遥感) have expanded significantly. In agriculture, farmers utilize this technology to monitor crop health and soil moisture levels. By analyzing the data collected through active sensors, they can make informed decisions about irrigation and fertilization, ultimately enhancing productivity and sustainability. Additionally, in forestry, active remote sensing (主动遥感) techniques are employed to assess forest biomass and monitor deforestation rates. This information is crucial for conservation efforts and understanding the impacts of climate change.Furthermore, active remote sensing (主动遥感) plays a critical role in disaster management. During natural disasters such as earthquakes, floods, or wildfires, timely and accurate data is essential for effective response and recovery. Active sensors can provide real-time information about the affected areas, allowing authorities to assess damage and allocate resources efficiently. For example, after a hurricane, active remote sensing can help identify flooded regions, guiding rescue operations and humanitarian aid.The technological advancements in active remote sensing (主动遥感) have also led to improved accuracy and resolution of data. Innovations in sensor design and data processing algorithms enable researchers to obtain high-resolution images and detailed spatial information. This enhanced capability allows for more precise mapping and analysis of various phenomena, contributing to scientific research and policy-making.Moreover, the integration of active remote sensing (主动遥感) with other technologies, such as Geographic Information Systems (GIS) and machine learning, has opened new avenues for data analysis. By combining these tools, researchers can create sophisticated models that predict environmental changes and assess risks associated with climate change. This interdisciplinary approach enhances our understanding of complex systems and supports informed decision-making.In conclusion, active remote sensing (主动遥感) is a powerful tool that has transformed how we collect and analyze data about our planet. Its ability to provide reliable information under various conditions makes it indispensable in numerous fields, including agriculture, forestry, and disaster management. As technology continues to advance, the potential applications of active remote sensing (主动遥感) will only expand, offering new insights and solutions to some of the most pressing challenges facing our world today.