Results and discussion
Results are structured as follows. Firstly, the sensitivity analysis is
presented with discussions on model uncertainties (Section 3.1). Then,
results for model calibration are presented, with discussions on how
RS-based model calibration can improve discharge and the water cycle
representation as a whole (Section 3.2).
Sensitivity analysis
A sensitivity analysis was carried out to understand how different
parameter types (river hydraulic, soil, vegetation, and all together)
affect the variation of different hydrological processes in MGB (Figure
3a). This was performed by analyzing the dispersion of six output
variables (discharge, water level, flood extent, TWS anomalies,
vegetation ET, and soil moisture). These results are also compared with
an estimate of the uncertainties of observations (values provided in
section 2.8 Calibration/Evaluation Data ), and are discussed in
the subsequent sections.