The use of Hadoop brings the following advantages here:Īs the amount of data grows, simple and inexpensive scaling of the system by adding new compute nodes to the cluster. For this purpose, both the imports of the different weather models and the exports of the data updates for wetter.at use Hadoop Map-Reduce jobs to execute the creation of the current weather forecasts for all of Austria and Germany on the Hadoop cluster in parallel. This makes it possible to retrieve worldwide weather forecasts interactively or to export current weather forecasts for the whole of Austria and Germany for the above-mentioned websites. However, these queries are not used to export data, but are used for interactive data quality control by MOWIS.Īcceleration and cost savings compared to legacy SQL database.īy switching to a Hadoop-based NoSQL solution, an additional forecast model for worldwide weather data could be introduced, as well as data imports as well as exports accelerated by a factor of seven.
Furthermore, using Apache Hive, SQL access to the data was enabled, allowing flexible queries to the stored location data. An xml-based interface allows data to be retrieved by web-based services. In addition, data already retrieved is cached to further speed up queries.
The system dynamically selects the most suitable database for each forecast and combines data from different sources. This makes it possible to interactively retrieve weather forecasts worldwide up to fourteen days in advance. Current weather data from various sources, such as the results of various weather forecast models as well as measured values from weather stations, are continuously fed into this database. Alle sechs Stunden berechnen die Prognose-Modelle neue Wettervorhersagen. D as Wetter ndert sich stetig und hat zu jeder Jahreszeit seinen Reiz. Daneben gibt es interessante Einblicke in die Statistik. The central component is the NoSQL database HBase, which is based on a Hadoop cluster. Auf dieser Seite bieten wir Ihnen eine bersicht unserer tglich aktuellen Monats- und Wettervorhersagen und Kurzfristprognosen. The system has been continuously maintained and further developed as needed since 2011.
#WETTER OSTDEUTSCHLAND SOFTWARE#
The central data management system for these services was developed by RISC Software GmbH on behalf of MOWIS. Hier erfahren Sie, ob es eine Warnung für Ihren Ort gibt. Warnung vor Katastrophen: die besten Warn-Apps. Mobile World Information Systems GmbH (MOWIS) provides weather data services, including operating the wetter.at and websites. Verfolgen Sie alle wichtigen Wetter-Meldungen in unserem Ticker. Reliable and accurate weather forecasts are essential for planning personal leisure activities as well as for numerous companies and organizations.
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