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COST ES0601 Temperature Network 000001 Michele BRUNETTI (m.brunetti@isacr.it)

COST ES0601 Temperature Network 000001 Michele BRUNETTI (m.brunetti@isac.cnr.it) I stituto di S cienze dell' A tmosfera e del C lima CONSIGLIO NAZIONALE DELLE RICERCHE Via P. Gobetti, 101 – 40129 BOLOGNA. TARRAGONA 9-11 March 2009. CRADDOCK TEST. A. B.

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COST ES0601 Temperature Network 000001 Michele BRUNETTI (m.brunetti@isacr.it)

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  1. COST ES0601 Temperature Network 000001 Michele BRUNETTI (m.brunetti@isac.cnr.it) Istituto di Scienze dell'Atmosfera e del Clima CONSIGLIO NAZIONALE DELLE RICERCHE Via P. Gobetti, 101 – 40129 BOLOGNA TARRAGONA 9-11 March 2009

  2. CRADDOCK TEST A B Where is the in homogeneity? In A or B?

  3. EXAMPLE

  4. CORRECTION To be corrected SHIFT RATIO

  5. SMOOTHING SMOOTHING OF THE CORRECTING FACTORS TO IMPROVE THE SIGNAL-TO-NOISE RATIO CORRECT WITHSMOOTHING CORRECT WITHOUT SMOOTHING ORIGINAL TO AVOID NOT IDENTIFIED OUTLIERS AFFECTING THE ANNUAL CYCLE Auer et al., 2005, Int. J. Clim., 25, 139-166

  6. EXAMPLE Unsteadiness in the first derivation of the Craddock function 1st January 1933: Changes in the observation times

  7. EXAMPLE

  8. EXAMPLE

  9. DAILY HOMOGENIZATION Unsteadiness in the first derivation of the Craddock function 1st January 1933: Changes in the observation times

  10. DAILY HOMOGENIZATION The correction coefficients were calculated on monthly bases, then they were fitted with a trigonometric function in order to obtain daily corrections without discontinuities from one month to another.

  11. SERIE GIORNALIERE Only the coherentcurveswereusedtocalculate the meancorrectingfactorseries

  12. DAILY HOMOGENIZATION

  13. TEMP 000001

  14. TREND (YEAR) ORI

  15. TREND (WINTER) ORI

  16. TREND (SUMMER) ORI

  17. SOME STATISTICS 25 OUTLIERS 34 BREAKS

  18. BREAK LOCATION

  19. JAN

  20. FEB

  21. MAR

  22. APR

  23. MAY

  24. JUN

  25. JUL

  26. AUG

  27. SEP

  28. OCT

  29. NOV

  30. DEC

  31. YEAR

  32. ANNUAL CYCLE

  33. HOM-ORI

  34. TREND (YEAR) ORI HOM

  35. TREND (WINTER) ORI HOM

  36. TREND (SUMMER) ORI HOM

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