P-band soil moisture sensing from space

本项目旨在建立辐射传输模型，通过一系列的塔架和空中现场实验，证明p波段辐射计能够遥感土壤顶部~15cm层的水分。在极端气候变化的情况下，这一近表层的及时土壤水分信息对于改善粮食生产用水管理至关重要。目前的卫星技术仅限于使用l波段辐射计在土壤的顶部~5cm层。该项目预计将为农民提供他们所需的土壤湿度数据，以优化他们的可用水资源，最大限度地提高粮食产量

This project aims to develop radiative transfer models to demonstrate that a P-band radiometer capability can remotely sense the top ~15cm layer of soil moisture, through a series of tower and airborne field experiments. Timely soil moisture information on this near-surface layer is critical to improved water management for food production in the face of extreme climate variability. Current satellite technologies are limited to the top ~5cm layer of soil using an L-band radiometer. This project is expected to give farmers the soil moisture data they need to optimise their available water resources to maximise food production