Title
Improving Streamflow Prediction Using Remotely-Sensed Soil Moisture and Snow Depth.
Abstract
The monitoring of both cold and warm season hydrologic processes in headwater watersheds is critical for accurate water resource monitoring in many alpine regions. This work presents a new method that explores the simultaneous use of remotely sensed surface soil moisture (SM) and snow depth (SD) retrievals to improve hydrological modeling in such areas. In particular, remotely sensed SM and SD retrievals are applied to filter errors present in both solid and liquid phase precipitation accumulation products acquired from satellite remote sensing. Simultaneously, SM and SD retrievals are also used to correct antecedent SM and SD states within a hydrological model. In synthetic data assimilation experiments, results suggest that the simultaneous correction of both precipitation forcing and SM/SD antecedent conditions is more efficient at improving streamflow simulation than data assimilation techniques which focus solely on the constraint of antecedent SM or SD conditions. In a real assimilation case, results demonstrate the potential benefits of remotely sensed SM and SD retrievals for improving the representation of hydrological processes in a headwater basin. In particular, it is demonstrated that dual precipitation/state correction represents an efficient strategy for improving the simulation of cold-region hydrological processes.
Year
DOI
Venue
2016
10.3390/rs8060503
REMOTE SENSING
Keywords
Field
DocType
soil moisture,snow depth,precipitation,streamflow,data assimilation
Streamflow,Remote sensing,Synthetic data,Forcing (mathematics),Data assimilation,Water content,Geology,Snow,Structural basin,Precipitation
Journal
Volume
Issue
ISSN
8
6
2072-4292
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Haishen Lü1246.63
Wade T. Crow253855.96
Yonghua Zhu3224.61
Fen Ouyang400.34
Jianbin Su591.72