Quality control process of the daily rainfall series available in Catalonia from 1855 to the present
Autor: | Alba Llabrés-Brustenga, M. Carmen Casas-Castillo, Raúl Rodríguez-Solà, Anna Rius, A. Redaño |
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Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Física |
Rok vydání: | 2019 |
Předmět: |
Atmospheric Science
Catalonia 010504 meteorology & atmospheric sciences media_common.quotation_subject Control (management) 0207 environmental engineering Precipitacions (Meteorologia) -- Mesurament 02 engineering and technology 01 natural sciences Statistics Quality (business) Precipitation 020701 environmental engineering Extreme value theory 0105 earth and related environmental sciences media_common Series (stratigraphy) Measure (data warehouse) Enginyeria agroalimentària::Ciències de la terra i de la vida::Climatologia i meteorologia [Àrees temàtiques de la UPC] Process (computing) Quality control Precipitation (Meteorology) -- Measurement Control de qualitat Daily rainfall Environmental science Type I and type II errors |
Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Recercat. Dipósit de la Recerca de Catalunya instname |
ISSN: | 1434-4483 0177-798X |
Popis: | The quality control of weather data is a necessity and a responsibility of meteorological services that store, distribute, and use these data. In the present work, a newly designed quality control procedure for daily rainfall data is presented after it has been adjusted and tested with more than 10^7 data from 1726 daily rainfall measurement sites in Catalonia. It is applicable to data from different origins (e.g., automatic weather stations or manual historical measurements). The procedure is focused on relative comparison of daily data with reference stations that are automatically selected after an initial estimation of their quality and a proximity study regarding location and correlation. The presented procedure has been verified taking advantage of an available network in the study area that has been routinely quality controlled by technicians of the Meteorological Service of Catalonia. The newly designed quality control procedure for daily precipitation yields good results, especially for extreme values: type I error under 10% is found for values up to 150 mm (error decreasing for lower values) and type II error is under 16% when reported values are twice a measure of 50 mm or more (error decreasing for more extreme values). After the application of the quality control procedure, a selection of series with the minimum desired quality is achieved. |
Databáze: | OpenAIRE |
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