Progress ELDAS Point Validation ELDAS Progress Meeting, 1011 December 2003, Madrid

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Progress ELDAS Point Validation(ELDAS Progress
Meeting, 10-11 December 2003, Madrid)

• Cor Jacobs, Herbert Ter Maat, Eddy Moors

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Contents

• Tasks
• Data collection
• Preliminary validation DWD results (TERRA, 2
  months)
• CarboEurope Sites
• Scinty Sites
• Flevopolder
• ELDORADO and SAFFRAN
• To be solved

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Point Validation Tasks

• WP4100 Check validity of ELDAS product
• is there a relation between model output and
  reality?
• Extra (agreed during 1st progress meeting)
  radiation
• ELDORADO versus SAFFRAN radiation

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Validation sites and data collection progress
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Model data production for validation
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Flux Sites 1 CarboEurope Sites
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Net Radiation CarboEurope Sites / DWD model
Albedo?!
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Evapotransration CarboEurope Sites / DWD model
Albedo, rs, zo, soil, ?
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P-E CarboEurope Sites / DWD model
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S Soil Moisture Increments and P-E (Normalized)
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Soil Moisture Increments and Evaporative Fraction
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Further Actions (1) CarboEurope Sites

• Complete data collection
• Databases 1 ELDAS year
• Comparison timeseries, trends, quality
  indicators
• Normalized fluxes (and gridbox adjustment?)
• Moisture indicators (L,a)
• Temperature / humidity
• Soil moisture increments

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Flux Sites 2 Scintillometer Sites (WAU)

• Latent heat flux indirect (from surface energy
  balance)

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Scintys Flux Sites H and G (noon)
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Scintys Flux Sites L / Soil Moisture Increment
(noon)
L
L
Large Scale Irrigation!
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Further Actions (2) Scinty Sites

• Re-format data
• Explore alternatives to compute lE
• Comparison timeseries, trends, quality
  indicators
• Normalized fluxes (and gridbox adjustment?)
• Moisture indicators (L,a)
• Temperature / humidity
• Irrigation data
• Soil moisture increments

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Soil Moisture Sites PLAP (Geus), Flevopolder
(ESA)
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Soil moisture (-5cm) Flevopolder / DWD model (1)
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Soil moisture (-5cm) Flevopolder / DWD model (2)
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Soil moisture (-5cm) Flevopolder / DWD model (3)
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Further Actions (3) Soil Moisture Sites

• Re-format data
• Include BALTEX data
• Comparison timeseries, trends, quality
  indicators
• Normalized soil moisture (and gridbox
  adjustment?)
• Effect of soil type
• Soil moisture in well-defined layers
• Soil moisture increments
• Effect of drainage?
• Estimate P-E?

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Radiation schemes comparison
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Radiation schemes comparison
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Radiation schemes comparison
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Correlation diagram between radiation models

• A simple correlation diagram between ELDORADO and
  SAFFRAN for 10 July 2003 600 GMT

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Correlation and slope ELDORADO/SAFFRAN
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Validation ELDORADO (Carpentras)
longwave
shortwave

• x axis model, y-axis observations

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Validation SAFFRAN (Carpentras)
longwave
shortwave

• x axis model, y-axis observations

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Further Actions (4) Radiation Schemes

• Include Hesse (Sarrebourgh CarboEurope site
  shortewave only)
• Further analyses radiation fields
• Think about conclusions

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To be solved defining reality

• Model surface versus observation space
• (Gridpoint Adjustment?)
• Land cover and characteristics
• Soil Type
• Irrigation, drainage
• Trivial Matters
• (Define your data!)
• Synchronisation
• Height/Depth/Layers