1. Meeting of COST-ES0601 (HOME) Mallorca 25-27 JAN 2010
“Results of Intercomparison on Monthly Benchmark”
Kolokythas Kostas
Patras, Greece
LABORATORY OF ATMOSPHERIC PHYSICS, UNIVERSITY OF PATRAS

2. Meeting of COST-ES0601, Mallorca
LABORATORY OF ATMOSPHERIC PHYSICS, UNIVERSITY OF PATRAS
Meeting of COST-ES0601, Mallorca
Outline
Network
Method
Results
Remarks

3. Meeting of COST-ES0601, Mallorca
LABORATORY OF ATMOSPHERIC PHYSICS, UNIVERSITY OF PATRAS
Meeting of COST-ES0601, Mallorca
Network
- Data Series: temp/sur1/000001
Mean minimum monthly temperature series ( )
9 stations

4. Meeting of COST-ES0601, Mallorca
LABORATORY OF ATMOSPHERIC PHYSICS, UNIVERSITY OF PATRAS
Meeting of COST-ES0601, Mallorca
Missing Values:
Observatori de l'Ebre-Roquetes (DEC.: 6)
Aeroport de Reus
Aeroport de Barcelona
Flix
Tivissa
Lleida
Vila-seca
Caldes de Montbui
Cardedeu

5. Meeting of COST-ES0601, Mallorca
LABORATORY OF ATMOSPHERIC PHYSICS, UNIVERSITY OF PATRAS
Meeting of COST-ES0601, Mallorca
Method
- MASH Multiple Analysis of Series for Homogenisation
(Szentimerey)
- Statistical significance for break-point detection: 0.05
Procedure :
- Filling of missing values: SAMMISS.BAT
- Monthly outliers found: MASHLIER.BAT
- Break-point detection-correction :
MASHGAME.BAT, MASHGAUT.BAT, MASHCOR.BAT
- Verification of homogenisation: samveri.bat

6. Meeting of COST-ES0601, Mallorca
LABORATORY OF ATMOSPHERIC PHYSICS, UNIVERSITY OF PATRAS
Meeting of COST-ES0601, Mallorca
Outliers  1 2 3 4 5 6 7 8 9 10 11 12
hotnm d
hotnm d
1974/75
hotnm d
1935/36
1957/58
hotnm d
1979/80
1931/32
1964/65
1959/60
hotnm d
hotnm d
1980/81
1966/67
1932/33
hotnm d
1930/31
1978/79
1955/56
1989/90
1956/ /67
hotnm d
1951/52
1942/43
hotnm d
Outliers

7. Meeting of COST-ES0601, Mallorca
LABORATORY OF ATMOSPHERIC PHYSICS, UNIVERSITY OF PATRAS
Meeting of COST-ES0601, Mallorca
Breaks  1 2 3 4 5 6 7 8 9 10 11 12
hotnm d.txt
1928
1927
1974
hotnm d.txt
1972
1947
1946
hotnm d.txt
hotnm d.txt
1962
1983
1982
hotnm d.txt
honm d.txt
1967
1978
hotnm d.txt
1964
1936
1963
hotnm d.txt
hotnm d.txt
1933
1932

8. Meeting of COST-ES0601, Mallorca
LABORATORY OF ATMOSPHERIC PHYSICS, UNIVERSITY OF PATRAS
Meeting of COST-ES0601, Mallorca
hotnm d - Caldes de Montbui
st8 1 2 3 4 5 6 7 8 9 10 11 12
1905
1906
1907
1928
1929
1939
1940
1961
1981
1982
Examples of consequent break-points

9. Meeting of COST-ES0601, Mallorca
LABORATORY OF ATMOSPHERIC PHYSICS, UNIVERSITY OF PATRAS
Meeting of COST-ES0601, Mallorca
hotnm d - Aeroport de Reus
st2 1 2 3 4 5 6 7 8 9 10 11 12
1946
1947
1952
1953
hotnm d - Flix
st4 1 2 3 4 5 6 7 8 9 10 11 12
1982
Examples of consequent break-points

10. Annual inhomogeneities

12. Meeting of COST-ES0601, Mallorca
LABORATORY OF ATMOSPHERIC PHYSICS, UNIVERSITY OF PATRAS
Meeting of COST-ES0601, Mallorca
Remarks
Numerous break-points for a single station in a row
(hotnm d.txt: Caldes de Montbui)
Verification of homogenization
Monthly series: problem with 9th and 11th
Sesonal – Anual series: need for additional homogenization
Need for Metadata

13. Meeting of COST-ES0601, Mallorca
LABORATORY OF ATMOSPHERIC PHYSICS, UNIVERSITY OF PATRAS
Meeting of COST-ES0601, Mallorca
Thank you for your attention