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Heavy Vb-cyclone Precipitation: a Transfer Entropy Application Showcase

Amelie Simone HoffPraveen Kumar PothapakulaCristina PrimoBodo Ahrens

出版	E. Schweizerbart Science Publishers, 2021
URL	http://books.google.com.hk/books?id=tu9c0AEACAAJ&hl=&source=gbs_api

註釋

Several past summer floods in Central Europe were associated with so-called Vb-cyclones propagating from the Mediterranean Sea north-eastward to Central Europe. This study illustrates the usefulness of the parametric transfer entropy measure TE-linear in investigating heavy Vb-cyclone precipitation events in the Odra catchment (Poland). With the application of the TE-linear approach, we confirm the impact of the Mediterranean Sea on precipitation intensification. Moreover, we also detect significant information exchange to Vb-cyclone precipitation from evaporation over the European continent along the typical Vb-cyclone pathway. Thus, the Mediterranean Sea could enhance the Vb-cyclone precipitation by pre-moistening continental moisture source regions that contribute to precipitation downstream in the investigated catchments. Overall, the transfer entropy approach with the measure TE-linear proved to be computationally effective and complementary to traditional methods such as Lagrangian and Eulerian diagnostics.