![]() ![]() GTS (essential data and data licensed by ECOMET restrictions).Raw station data is collected from various sources: All weather data is stored in the stations weather database (daily data in object WEATHER_OBS_STATION and 3- and 6-hourly precipitation in object WEATHER_OBS_STATION_RAIN). Over 5100 of these stations provide weather data in near real time. The stations, stored in object STATIONS holds over 10221 stations distributed over 40 countries in Europe and neighboring countries. In 2016 data from around 300 Chinese stations have been acquired starting a new service for this region. In recent years, the earlier archives (1975-2004) of Scandinavia and eastern Europe have been enriched. QUACKME is applying data quality checks, calculates derived parameters and daily aggregates and writes the data into the file formats as expected by the EFAS and MCYFS downstream processes. The temporal resolution of the data ranges from 1-hourly to 24-hourly, depending on the parameter. In a next step, the data is converted into the input-format as required by the QUACKME software package. Basic first level data sanity checks are applied. It is first decoded and converted into a generalized structure, including unit and time zone conversions, alignment of reference periods and - where needed - the assignment of station-id. The data arrives either in standardized encoded formats as defined by the WMO or ICAO, or in proprietary formats as used by individual providers. Sources include the WMO GTS network, NOAA data access points, regional and national meteorological services, and the access points for non-essential WMO reports. The database was also scanned for inconsistencies, such as successive days with the same value for a variable, or minimum temperatures higher than maximum temperatures ( Burrill and Vossen, 1992).įrom 1991 to present, meteorological data is received in near-real-time from open data sources and from contracted providers like ECOMET or national or regional meteorological services. ![]() The historic data were converted into consistent units and checked on realistic values. ![]() Later the historic sets have been extended with stations in Eastern Europe, western Russia, Maghreb and Turkey. Around 1992 the historic meteorological data represented approximately 380 stations in the EU, Switzerland, Poland and Slovenia with data from 1949 to 1991 ( Burrill and Vossen, 1992). As data are obtained from a variety of different sources, considerable pre-processing was necessary to convert them into a standard format. Some of the historic meteorological data were purchased directly from National Meteorological Services. Mainly examples from Europe are shown in this documentation. This data is available in the object STATIONS.Ĭurrently, data acquisition and processing applies to two regional windows: Europe and China. Relevant meta data of stations includes station number, station name, latitude, longitude and altitude. The selection of stations is limited to those stations that regularly collect data and can supply data in near real time. Weather stations (black dots) for which data are available for (part of) the period from 1975 until present ![]()
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