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Scaling and Assimilation of Soil Moisture And
Streamflow (SASMAS)- Streamflow Data
Assimilation -Christoph Rüdiger, Jeffrey WalkerDept. of Civil & Environmental Engineering
The University of Melbourne
Jetse Kalma, Garry Willgoose, Riki Davidson, Manju Hemakumara
School of Engineering, University of Newcastle
Paul HouserHydrological Sciences Branch
NASA Goddard Space Flight Center
Ross WoodsNational Centre for Water Resources,
Christchurch
Christoph Rüdiger
SASMAS Willgoose Symposium
The aim of SASMAS
- Estimation of Spatial Distribution of Soil Moisture
- Estimation of Temporal Variation of Soil Moisture
- Scaling between Satellite Soil Moisture Productsand On-Site Point Measurements
- Connecting Soil Moisture Measurements with Streamflow Measurements
- Validation of AMSR-E data
Christoph Rüdiger
SASMAS Willgoose Symposium
Subprojects
- Scaling Studies (Manju Hemakumara)
- Streamflow Data Assimilation (Christoph Rüdiger)
- Soil Moisture Data Assimilation (Riki Davidson)
- Satellite Data Validation (eg. AMSR-E)
(all candidates)
Christoph Rüdiger
SASMAS Willgoose Symposium
Areas of Application
- Climatic Modelling- Flood Forecasting- Agriculture- …
Christoph Rüdiger
SASMAS Willgoose Symposium
Field Site
- Goulburn River Catchment- Proximity to Newcastle- Size and geophysical properties- Cleared areas- Division into 4 subcatchments
Christoph Rüdiger
SASMAS Willgoose Symposium
Subcatchments
Stanley
Merriwa RiverKrui River
Christoph Rüdiger
SASMAS Willgoose Symposium
Surface conditions
Christoph Rüdiger
SASMAS Willgoose Symposium
Instrumentation- Installation of …
- 2 weather stations and several rain gauges
- 26 soil moisture monitoring sites- 1 flume and 2 river gauges
- Use of …- 3 existing weather stations- 3 stream gauges
Christoph Rüdiger
SASMAS Willgoose Symposium
Locationof
Instrumentation
Soil Moisture SitesStream Gauges
Weather Stations
Future Stream Gauges
Christoph Rüdiger
SASMAS Willgoose SymposiumSchematic of a Soil
Moisture Site
0 - 30cm
30 – 60 cm
60 - 90cm
30cm
60cm
CS616
backfilled soil
Logger
30cm30cm
SMSM SM
N
Logger
T
30cm
75cm
Christoph Rüdiger
SASMAS Willgoose Symposium
Instrumentation
Weather Station at Spring Hill
Temperature Sensor
Soil Moisture Sensor
Christoph Rüdiger
SASMAS Willgoose Symposium
Instrumentation
Christoph Rüdiger
SASMAS Willgoose SymposiumStreamflow Data
Assimilation- Why the Focus on Streamflow
Data- Updating of Soil Moisture States- Soil Moisture Estimation under
Vegetation Canopy
Christoph Rüdiger
SASMAS Willgoose SymposiumStreamflow Data
Assimilation- How
- Gauging stations, flume, soil moisture sensors and satellite remote sensed data
- Implementing Streamflow Routing Model into Rainfall-Runoff Models
- Variational Approach- Ensemble Kalman Filter
Christoph Rüdiger
SASMAS Willgoose SymposiumApproach to Streamflow
Modelling- Creating model- Synthetic study on model- Application of Mahurangi (NZ)
data sets- Application of Goulburn data sets
Christoph Rüdiger
SASMAS Willgoose Symposium
Acknowledgements
- Australian Research Council (Research Grant)
- NASA, Hydrological Sciences Branch (Instrumentation)