Diplomanden-Doktoranden-Seminar Bonn, now Cologne – 9. July 2007 My_Summer_Term_Work Ralf Lindau.

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Presentation transcript:

Diplomanden-Doktoranden-Seminar Bonn, now Cologne – 9. July 2007 My_Summer_Term_Work Ralf Lindau

Diplomanden-Doktoranden-Seminar Bonn, now Cologne – 9. July 2007 Projects & Studies I Of course teaching ( 0 k€) Do students need to know about Curvature Terms to understand the Coriolis force? Geoland (100 k€) -Calculation of global soil moisture fields from AMSR -End of project Final report (financial & scientific) GRAS-CMSAF-SAF Study ( 25 k€) -Validation of Layered Precipitable Water from Champ (GRAS-SAF) and ATOVS (CM-SAF) by radiosondes -Report delivered, but pending because of suspicious biases in CMSAF retrieval

Diplomanden-Doktoranden-Seminar Bonn, now Cologne – 9. July 2007 Projects & Studies II OMDI III and IV ( 36 k€) -Proposal for a future study (1. Dec 2007 to 30. June 2008) about error covariances of satellite retrievals -Advantages of Iterative Lindau Kriging compared to ordinary Block Kriging LandCaRe(166 k€) -Stand-alone runs of TERRA on 2.8 km resolution driven by 18-km LM-Consortial runs

Diplomanden-Doktoranden-Seminar Bonn, now Cologne – 9. July 2007 Susp.TPW bias of ATOVS No GME NCEP mm - 3 % mm + 14 % mm + 27 % The bias using GME as first guess (standard) vanishes for „No first guess“ and is doubled, if NCEP is used.

Diplomanden-Doktoranden-Seminar Bonn, now Cologne – 9. July 2007 Error Covariance D = ((x 1 +  x 1 ) – (x 2 +  x 2 )) 2 D = 2 Var – 2 Cov + Err1 + Err2 - 2 ErrCov

Diplomanden-Doktoranden-Seminar Bonn, now Cologne – 9. July 2007 Error Covariance D = ((x 1 +  x 1 ) – (x 2 +  x 2 )) 2 S = (x 1 +  x 1 ) 2 + (x 2 +  x 2 ) 2 D = 2 Var – 2 Cov + Err1 + Err2 - 2 ErrCov S = 2 Var + Err1 + Err2

Diplomanden-Doktoranden-Seminar Bonn, now Cologne – 9. July 2007 Error Covariance D = ((x 1 +  x 1 ) – (x 2 +  x 2 )) 2 S = (x 1 +  x 1 ) 2 + (x 2 +  x 2 ) 2 D = 2 Var – 2 Cov + Err1 + Err2 - 2 ErrCov S = 2 Var + Err1 + Err2 S – D = 2 Cov + 2 ErrCov

Diplomanden-Doktoranden-Seminar Bonn, now Cologne – 9. July 2007 Negative Kriging weights Kriging is solving this matrix: Kriging error is:

Diplomanden-Doktoranden-Seminar Bonn, now Cologne – 9. July 2007 LandCaRe 2020 TERRA stand-alone Resolution 0.025° (2.8 km) 250 x 300 grid points Reality/Computation factor years: 4 months

Diplomanden-Doktoranden-Seminar Bonn, now Cologne – 9. July 2007 Soil Temperature After 6 days (2.5 hours computing time) the course initial resolution is partly downscaled

Diplomanden-Doktoranden-Seminar Bonn, now Cologne – 9. July 2007 Uckermark If the domain is reduced to 1° by 1°, (approx. area of Uckermark and Weisseritz county): Reality/Computation factor: years:60 h Soil Temp, 1. Nov Soil Temp, 1. Feb Land-sea mask