Assessment of Canadian soil water resources and freeze/thaw conditions through microwave remote sensing and data assimilation / Évaluation des ressources en eau du sol au Canada et des conditions de..

这里提出的工作目标是呼吁提出改善健康环境和生态系统的建议；具体地说，我们将开发水资源供应、保护和管理的工具。尽管土壤水分在若干环境科学中起着关键作用，但在业务应用中缺乏土壤水分的时间和空间分布。该项目旨在开发新的方法来评估加拿大三种不同的代表性景观类型的土壤水资源和土壤的冻结/融化状态。这些方法结合了非常先进的卫星数据、被动微波飞机测量、野外观测、辐射传输模型、水文模型和数据同化，以提高我们对加拿大土壤水分和土壤冻结/融化状态的时空变异性的了解。这项研究将是加拿大土壤水分常规观测的第一次尝试。它在洪水预测、干旱监测、农业作物水评估和可持续水资源管理所需的水预算估算方面具有巨大的潜力。此外，还将处理未来低分辨率(约35公里)卫星数据SMOS(土壤水分和海洋盐度)的升级问题，以估计土壤水分。

The work proposed herein targets the call for proposals which will enhance Healthy Environment and Ecosystems; specifically we will develop tools for the Supply Protection and Management of Water Resources. Despite its crucial role in several environmental sciences, there is a lack in the temporal and spatial distribution of soil moisture for its use in an operational context. The project aims to develop new methodologies to assess soil water resources and soil's freeze/thaw state over three different representative landscapes types in Canada. These methodologies combine very advanced satellite data, passive microwave aircraft measurements, field-based observations, radiative transfer modelling, hydrological modelling and data assimilation in order to improve our understanding of the spatial and temporal variability of soil moisture and soil's freeze/thaw state in Canada. The research presented will be the first attempt for routine observations of soil moisture quantity over Canada. It has a great potential to have measurable impacts on flood prediction, drought monitoring, agricultural crop water assessment and water budget estimates necessary for sustainable water resource management. Also, upscaling of the future low-resolution (about 35 km) satellite data SMOS (Soil Moisture and Ocean Salinity) will be addressed for soil moisture estimation.