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Soil moisture in Tibet derived from satellite obsevations

Soil moisture in Tibet derived from satellite obsevations. C. Simmer and R. Lindau University of Bonn. Total variance External variance Internal variance = Variance between + Mean variance

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Soil moisture in Tibet derived from satellite obsevations

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  1. Soil moisture in Tibet derived from satellite obsevations C. Simmer and R. Lindau University of Bonn DFG Round Table – Frankfurt a.M. – 23th May 2006

  2. Total variance External variance Internal variance = Variance between + Mean variance the means of the within the subsamples subsamples ANOVA of Soil Moisture measurements DFG Round Table – Frankfurt a.M. – 23th May 2006

  3. Local longtime means 73% of the soil moisture variance is explained by four parameters : DFG Round Table – Frankfurt a.M. – 23th May 2006

  4. Two-step Retrieval Climatological mean derived from: • Longterm precipitation • Soil texture • Vegetation density • Terrain slope + Temporal anomalies from: • Brightness temperatures at 10 GHz • Anomalies of rain and air temperature DFG Round Table – Frankfurt a.M. – 23th May 2006

  5. Application: DEKLIM BALTIMOS within DEKLIM (Deutsches Klimaforschungsprogramm): Validation of a 10-years climate run of the regional model REMO using SMMR. Example: Oder catchment R. Lindau and C. Simmer: Derivation of a root zone soil moisture algorithm and its application to validate model data. Nordic Hydrology, accepted for publ. DFG Round Table – Frankfurt a.M. – 23th May 2006

  6. Application: AMSR GEOLAND within GMES (Global Monitoring for Environment and Security): Derivation of global soil moisture fields from AMSR M. Leroy, R. Lacaze, R. Lindau, F. Oleson, L. Pessanha, I. Piccard, A. Rosema, J-L. Roujean, F. Rubel, W. Wagner, M. Weiss, 2004: Towards a European Service Center for Monitoring land surfaces at global and regional Scales: The GEOLAND/ CSP Project International Archives of Photogrammetry and Remote Sensing, XXth ISPRS Congress, Istanbul, 35 (B4), 783-790. Longterm mean Temporal anomaly DFG Round Table – Frankfurt a.M. – 23th May 2006

  7. Mean Soil Moisture in Tibet • The longtime mean field is characterized by strong gradients Three points on the above section show decreasing soil moisture towards NW with a minimum in August DFG Round Table – Frankfurt a.M. – 23th May 2006

  8. Annual Cycle Feb May Nov Aug DFG Round Table – Frankfurt a.M. – 23th May 2006

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