802 resultados para Data stream mining
Resumo:
The JGOFS International Collection Volume 2: Integrated Data Sets CD is a coherent, organised compilation of existing data sets produced by member countries which participated in JGOFS. In most cases, the data were gathered from the JGOFS International Collection, Volume 1: Discrete Datasets DVD. To produce Vol. 1 data were taken from the original sources and copied "as is" on the DVD. For Vol. 2 data and metadata have been harmonized using the conversion software PanTool and the import routine of PANGAEA checking for completeness of metadata and defining the relations between data and metadata. Prior to the import, data had performed a technical quality control, i.e. format and readability of the file, availability and combination of parameters and units, range of values.
Resumo:
The first International Polar Year (IPY) was an international effort to perform continous meteorological and geophysical observations over a time period of two years (1882-1883). Eleven nations established twelve research stations in the Arctic along with thirteen auxilary stations. Two stations were operated on the southern hemisphere (South Georgia and Tierra del Fuego). The data were published in 26 volumes on 8700+ pages of reports, descriptions, tables and graphs in total. The list of meteorological parameters includes temperature, wind, pressure, clouds, precipitation, evaporation, humidity and radiation. In the light of Global Change and the intensification of observations and continous measurements in both polar regions, long-time series increase in importance. The observations of the first IPY from the 19th century enable us to extend the data from the 20th century even more back into the past. In the occasion of the fourth IPY (2007-2009) WDC-MARE decided to digitize the complete set of meteorological data in full hourly resolution and publish it in its reports and make it available in Open Access via the data library PANGAEA.
