Scaling and Assimilation of Soil Moisture And Streamflow (SASMAS) - Streamflow Data Assimilation - Christoph Rüdiger, Jeffrey Walker Dept. of Civil & Environmental.

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Presentation transcript:

Scaling and Assimilation of Soil Moisture And Streamflow (SASMAS) - Streamflow Data Assimilation - Christoph Rüdiger, Jeffrey Walker Dept. of Civil & Environmental Engineering The University of Melbourne Jetse Kalma, Garry Willgoose, Riki Davidson, Manju Hemakumara School of Engineering, University of Newcastle Paul Houser Hydrological Sciences Branch NASA Goddard Space Flight Center Ross Woods National Centre for Water Resources, Christchurch

SASMASWillgoose Symposium Christoph Rüdiger The aim of SASMAS -Estimation of Spatial Distribution of Soil Moisture -Estimation of Temporal Variation of Soil Moisture -Scaling between Satellite Soil Moisture Products and On-Site Point Measurements -Connecting Soil Moisture Measurements with Streamflow Measurements -Validation of AMSR-E data

SASMASWillgoose Symposium Christoph Rüdiger Subprojects -Scaling Studies (Manju Hemakumara) -Streamflow Data Assimilation (Christoph Rüdiger) -Soil Moisture Data Assimilation (Riki Davidson) -Satellite Data Validation (eg. AMSR-E) (all candidates)

SASMASWillgoose Symposium Christoph Rüdiger Areas of Application -Climatic Modelling -Flood Forecasting -Agriculture -…

SASMASWillgoose Symposium Christoph Rüdiger Field Site -Goulburn River Catchment -Proximity to Newcastle -Size and geophysical properties -Cleared areas -Division into 4 subcatchments

SASMASWillgoose Symposium Christoph Rüdiger Subcatchments Stanley Merriwa River Krui River

SASMASWillgoose Symposium Christoph Rüdiger Surface conditions

SASMASWillgoose Symposium Christoph Rüdiger 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

SASMASWillgoose Symposium Christoph Rüdiger Location of Instrumentation Soil Moisture Sites Stream Gauges Weather Stations Future Stream Gauges

SASMASWillgoose Symposium Christoph Rüdiger Schematic of a Soil Moisture Site cm30 – 60 cm cm 30cm 60cm CS616 backfilled soil Logger 30cm SM N Logger T 30cm 75cm

SASMASWillgoose Symposium Christoph Rüdiger Instrumentation Weather Station at Spring Hill Temperature SensorSoil Moisture Sensor

SASMASWillgoose Symposium Christoph Rüdiger Instrumentation

SASMASWillgoose Symposium Christoph Rüdiger Streamflow Data Assimilation -Why the Focus on Streamflow Data -Updating of Soil Moisture States -Soil Moisture Estimation under Vegetation Canopy

SASMASWillgoose Symposium Christoph Rüdiger Streamflow 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

SASMASWillgoose Symposium Christoph Rüdiger Approach to Streamflow Modelling -Creating model -Synthetic study on model -Application of Mahurangi (NZ) data sets -Application of Goulburn data sets

SASMASWillgoose Symposium Christoph Rüdiger Acknowledgements -Australian Research Council (Research Grant) -NASA, Hydrological Sciences Branch (Instrumentation)