International Workshop on Rescue & Digitazion of Climate Records in the Mediterranean Basin 28-30 November 2007 We have carried out a comprehensive but.

Presentación del tema: "International Workshop on Rescue & Digitazion of Climate Records in the Mediterranean Basin 28-30 November 2007 We have carried out a comprehensive but."— Transcripción de la presentación:

1 International Workshop on Rescue & Digitazion of Climate Records in the Mediterranean Basin 28-30 November 2007 We have carried out a comprehensive but approximate evaluation of the available long data series in the National Climatological Data Base at INM. The variables studied have been precipitation and temperature, on both the monthly and daily basis. The climatological data series have been stratified by year of beginning (ten year blocks) up to 1960 and approximate percentage of missing data. In order to make the computations easier some simplifications have been used. For example the different stations indicators with the same root have been considered as belonging to the same long series. And there are cases where in a given month there are daily missing data but since the monthly record is present we have not considered the month as missing for daily data. But we estimate these cases to be rather scarce.

2 International Workshop on Rescue & Digitazion of Climate Records in the Mediterranean Basin 28-30 November 2007

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5 Daily temperature # of series with rate of missing data (%) # of series Starting year<2Entre 2 y 5Entre 5 y 10Entre 10 y 20> 20 <=1900232108 1901-19105223113 1911-192011383649 1921-193021663045 1931-19402224141942121 1941-1950222011946108 1951-1960241582332102 Sums78664669187446

6 International Workshop on Rescue & Digitazion of Climate Records in the Mediterranean Basin 28-30 November 2007 Monthly temperature # of series with rate of missing data (%) # of series Starting year<2Entre 2 y 5Entre 5 y 10Entre 10 y 20> 20 <190014654938 1901-19107121112 1911-192051683757 1921-193021472943 1931-19401224122043111 1941-1950251791043104 1951-19602716173250142 Sums92665582212507

7 International Workshop on Rescue & Digitazion of Climate Records in the Mediterranean Basin 28-30 November 2007

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10 Daily precipitation # of series with rate of missing data (%) # of series Starting year<2Entre 2 y 5Entre 5 y 10Entre 10 y 20> 20 <=1900061108 1901-19107221416 1911-1920491934165231 1921-19304112029148212 1931-194030374758129301 1941-19501058273109167536 1951-196092725152102369 Sums2422192132847151673

11 International Workshop on Rescue & Digitazion of Climate Records in the Mediterranean Basin 28-30 November 2007 Mothly precipitation # of series with rate of missing data (%) # o f series Starting year<2Entre 2 y 5Entre 5 y 10Entre 10 y 20> 20 <=190015578540 1901-19106651321 1911-192015122538154244 1921-19307131929141209 1931-194037314158120287 1941-19501347969102144528 1951-196015697100128159640 Sums3702432663647261969

12 International Workshop on Rescue & Digitazion of Climate Records in the Mediterranean Basin 28-30 November 2007 The activity in the field of generating long homogeneous series at INM has received recently an important boost in connection with a project launched by the Spanish Environment Ministry to generate climate change regional scenarios. Within this project there is a part devoted to climate data which includes the generation of long temperature and precipitation homogeneous series. This part will be coordinated by Univ. Rovira i Virgili, and the Climatology Area of the INM will be one of the partners.

13 International Workshop on Rescue & Digitazion of Climate Records in the Mediterranean Basin 28-30 November 2007 Mahón ‘Aeropuerto de Menorca’ B893 UnivB804AMAHON PRIETO Y CAULES: Dato mensual de 1888 a 1925 UnivB804BMAHON BASE NAVAL: Dato mensual de 1926 a 1939 UnivB804CMAHON-PLAZA EXPLANADA: Dato mensual de 1939 a 1970 UnivB893Misma estación INM: Dato mensual de 1965 a 2001 INMB893De enero de 1965 a junio de 1974 hay dato diario con lagunas, resúmenes grabados y errores; desde julio de 1974 hay dato diario. INMB804AMAHON ‘PRIETO Y CAULES’: dato mensual de 1881 a 1925 INMB804BMAHÓN ‘BASE NAVAL’: dato mensual de 1926 a enero de 1939 INMB804CMAHÓN ‘PLAZA EXPLANADA’: dato mensual de febrero de 1939 a octubre de 1970 Acción propuesta: Prolongar hacia atrás la serie de la B893 An example of a long series with different measuring sites

14 International Workshop on Rescue & Digitazion of Climate Records in the Mediterranean Basin 28-30 November 2007 Another example of a long series with several sites 4. Barcelona ‘Aeropuerto de El Prat’ 0076 (Estación GCOS) Univ0076Misma estación INM: dato mensual desde 1938 a 2001 Univ0201EBARCELONA-UNIVERSIDAD: dato mensual desde 1869 a 1936 y dato diario de 1885 a 1925 Univ0200EBARCELONA-FABRA: dato mensual de 1926 a 2001 y dato diario en el mismo periodo INM0076Dato diario de: marzo 1924 a noviembre 1927, de julio 1938 a diciembre 1938 y desde enero de 1944 INM0200EBARCELONA ‘FABRA’: dato diario desde 1926, con lagunas los años 1980, 81 y 82; los datos entran con retraso (no están los dos últimos meses) INM0201EBARCELONA ‘UNIVERSITAT’: dato mensual de 1869 a julio de 1936 Acción propuesta: Prolongar hacía atrás la serie de la 0076

15 International Workshop on Rescue & Digitazion of Climate Records in the Mediterranean Basin 28-30 November 2007 Metadata Recently there has been a clear growth in the interest in and demand for metadata by the users of climatological data. There are specifice input screens for metadata in the Climatological Data Base of INM with Oracle system. Currently we are making efforts to recover old metadata, specifically the displacements of stations, which give rise to new station indicators. There are problems due to the sharing of responsabilities in metadata managemente between different units at INM. A new very important challenge is the automatization of the climatological network with the related issues of homogeneity: need of overlap between manual and automatic stations.

16 International Workshop on Rescue & Digitazion of Climate Records in the Mediterranean Basin 28-30 November 2007 Metadatos (1)

17 International Workshop on Rescue & Digitazion of Climate Records in the Mediterranean Basin 28-30 November 2007 Metadatos (2)

18 International Workshop on Rescue & Digitazion of Climate Records in the Mediterranean Basin 28-30 November 2007 Metadatos (3)