Homogenization of benchmark network temp/sur1/000001 Dubravka Rasol, MHSC, Croatia Elke Rustemeier, University of Bonn, Germany Olivier Mestre, Meteo-France,

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Homogenization of benchmark network temp/sur1/ Dubravka Rasol, MHSC, Croatia Elke Rustemeier, University of Bonn, Germany Olivier Mestre, Meteo-France, France

Method and data Elke and Dubravka - STSMs Meteo-France,Toulouse Sep/Oct 2009 – 2 weeks Olivier - the host method - PRODIGE Mean temperatures - benchmark network temp/sur1/ Period stations, NE Spain Stations: 50 Observatori-de-Ebre-Roquetes 60 Aeroport-de-Reus 70 Aeroport-de-Barcelona 100 Flix 110 Tivissa 120 Lleida 130 Vila-seca 150 Caldes-de-Montbui 160 Cardedeu

Geographical position of the stations

Correlations between the stations

Visual inspection of outliers

List of the outliers Stationmonthyear Observatori-de-Ebre-Roquetes51969 Aeroport-de-Barcelona31936 Flix51982 Flix Tivissa81982 Lleida91967 Vila-seca11931 Vila-seca Caldes-de-Montbui21982 Caldes-de-Montbui31952 Caldes-de-Montbui stations -> altogether 11 outliers at 7 stations 0-3 per station

Raw data

Break points detection (Aeroport-de-Reus)

Break points detection after several runs of homogenization procedure (Aeroport-de-Reus)

List of break points Observatori-de-Ebre-Roquetes (4) ,1939,1949,1974 Aeroport-de-Reus (4) ,1952,1973,1992 Aeroport-de-Barcelona (10) ,1920,1922,1941,1959, 1962,1972,1978,1988,1993 Flix (4) ,1965, 1981, 1983 Tivissa(4) ,1954,1958,1987 Lleida (5) ,1949,1960,1964,1975 Vila-seca (4) ,1964,1983,1905 Caldes-de-Montbui (8) ,1930,1940,1951, 1961,1981,1988,1994 Cardedeu (4) ,1931,1949,1995

Break points detection (Aeroport-de-Barcelona)

Corrections – yearly values

Homogenized data series