9 th lba-eco science team meeting assessing the influence of observational data error on sib 2 model...
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![Page 1: 9 th LBA-ECO Science Team Meeting Assessing the Influence of Observational Data Error on SiB 2 Model Parameter Uncertainty Luis A. Bastidas 1, E. Rosero](https://reader036.vdocuments.mx/reader036/viewer/2022070403/56649f2a5503460f94c450d2/html5/thumbnails/1.jpg)
9th LBA-ECO Science Team Meeting
Assessing the Influence of Observational Data Error on SiB 2
Model Parameter Uncertainty
Assessing the Influence of Observational Data Error on SiB 2
Model Parameter Uncertainty
Luis A. Bastidas1,E. Rosero1, S. Pande1, W.J. Shuttleworth2
1Civil and Environmental Engineering andUtah Water Research Laboratory, Logan, Utah
2Hydrology and Water Resources,SAHRA – NSF Science and Technology Center
University of Arizona, Tucson, Arizona
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Modeling
Modified from Refsgaard, 2001
ModelModel
ConstructionConstruction
RealityReality ConceptualConceptualModelModel
ModelModel Model CodeModel Code
AnalysisAnalysis
Sim
ula
tio
nS
imu
lati
on
Pro
gram
min
gP
rog
ramm
ing
Model Calibration
Mo
del
Val
idat
ion
Model Qualification
Co
de V
erification
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Components of a Model
I
Inputs
XState Variables
Model Structure
Xt = F ( Xt-1, , It-1 )
Ot = G ( Xt, , It )
Model Structure
O
Outputs
Parameters
Xo
Initial States
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Pareto Optimality
Parameter 1
Par
amet
er
2
Criterion f1
Cri
teri
on
f 2
α
β
γ
γ
δ
δ
α
β
Parameter Space Criterion Space
f1
f2
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Sensitivity Analysis. SiB 2 @ Santarem Km 83
Pre-loggingPost-logging
MOGSA AlgorithmBastidas et al., JGR,1999
Multi Objective GeneralizedSensitivity Analysis
The further away fromthe center the more sensitive the parameter
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Pareto Set of Parameters
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Observed vs Computed. Pre-logging
![Page 8: 9 th LBA-ECO Science Team Meeting Assessing the Influence of Observational Data Error on SiB 2 Model Parameter Uncertainty Luis A. Bastidas 1, E. Rosero](https://reader036.vdocuments.mx/reader036/viewer/2022070403/56649f2a5503460f94c450d2/html5/thumbnails/8.jpg)
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Dry Typical Periods
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Wet Typical Periods
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Daily Average
E H CO2
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Performance Measures
E H CO2 E H CO2
R
RMSE
NSE
BIAS
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Objectives for Radiation and Precipitation ErrorsHeteroscedastic Error Added
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Parameter Distributions
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Parameter Distributions
0 1
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Daily Average
E H CO2
0 24 0 24 0 24
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Beware ….
“A fool with a tool is still a fool”