Multi-scale statistical properties of disaggregated satellite soil moisture product in Australia

Overview & Synopsis

Soil moisture has strong impact on climate, hydrology and agronomy at different space scales, from the continent global scale to the local watershed. Actual technologies like SMOS satellite (Soil Moisture and Ocean Salinity ; Kerr et al, 2010) allow a global study of soil moisture on the entire globe. However, these sensors measure soil moisture only on specific scales, often much larger than kilometer. To have access to kilometric variability, disaggregation algorithms have been developed. They consist in combining low resolution soil moisture with high resolution ancillary data.The objective of this study is to evaluate multi-scale variability of disaggregated satellite soil moisture product (DisPATCh), by applying spectral and multifractal analysis (in the framework of Universal Multifractal).