{"guid":"69f657a4-c06f-4865-aeff-0faf16bf6fe1","title":"Extreme Wetterereignisse in Europa","subtitle":"Wie entstehen Winter- und Sommerstürme?","slug":"c4.openchaos.2016.10.extreme-wetterereignisse-in-europa","link":"https://koeln.ccc.de/updates/2016-10-21_OC-Wetter.xml","description":"\u003cp\u003e\u003cspan style=\"font-size: 0.8em;\"\u003eIm Sommer als auch im Winter k\u0026ouml;nnen starke Windb\u0026ouml;en auftreten. Zun\u0026auml;chst w\u0026uuml;rden wir vielleicht denken, dass immer die gleichen atmosph\u0026auml;rischen Mechanismen f\u0026uuml;r die Entstehung von starken Winden verantwortlich sind. Das ist aber nicht der Fall \u003c/span\u003e\u003c/p\u003e\r\n\u003cp\u003eZum OpenChaos im Oktober geben wir einen einen \u0026Uuml;berlick \u0026uuml;ber faszinierende Zusammenh\u0026auml;nge:\u003c/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eWie kommt es zu St\u0026uuml;rmen im Sommer und im Winter?\u003c/li\u003e\r\n\u003cli\u003eWo liegen die Unterschiede zu Fr\u0026uuml;hling und Herbst?\u003c/li\u003e\r\n\u003c/ul\u003e\r\n\u003cp\u003eDer Vortrag f\u0026uuml;hrt dabei in interessante meteorologische Details ein:\u003c/p\u003e\r\n\u003cp\u003eWinterst\u0026uuml;rme entstehen durch starke Temperaturunterschiede zwischen der Arktis und den mittleren Breiten. Dadurch bilden sich in der H\u0026ouml;he starke Winde und in Bodenn\u0026auml;he gro\u0026szlig;e Luftdruckunterschiede aus. Die Atmosph\u0026auml;re generiert bei bestimmten Wetterlagen starke Tiefdruckgebiete, die Orkanb\u0026ouml;en mit sich bringen k\u0026ouml;nnen. Als Beispiel wird das Auftreten von Kyrill im Januar 2007 beschrieben.\u003c/p\u003e\r\n\u003cp\u003eIm Sommer existieren allerdings keine starken Temperaturgegens\u0026auml;tze zwischen dem Norden und S\u0026uuml;den. Starke B\u0026ouml;en werden zu dieser Jahreszeit durch organisierte Wolkensysteme und starke Gewitter ausgel\u0026ouml;st. Diese hochreichenden Wolken bilden starke Abwinde (sog. Downdrafts) aus. Warm-feuchte Luftmassen in der Grenzschicht, eine instabile mittlere Troposph\u0026auml;re und eine vertikale Windscherung stellen die notwendigen Zutaten f\u0026uuml;r die Organisation von solchen Wolkensystemen dar. Das Pfingstunwetter in Nordrhein-Westphalen des Jahres 2014 ist ein extremes Beispiel f\u0026uuml;r einen Sommersturm.\u003c/p\u003e","original_language":"deu","persons":["Volker Ermert"],"tags":["OpenChaos","C4","Wetter","Meteorologie","Stürme"],"view_count":780,"promoted":false,"date":"2016-10-27T20:15:00.000+02:00","release_date":"2016-11-13T01:00:00.000+01:00","updated_at":"2026-03-03T10:30:10.430+01:00","length":6818,"duration":6818,"thumb_url":"https://static.media.ccc.de/media/regional/c4/openchaos/c4.openchaos.2016.10.extreme-wetterereignisse-in-europa.jpg","poster_url":"https://static.media.ccc.de/media/regional/c4/openchaos/c4.openchaos.2016.10.extreme-wetterereignisse-in-europa_preview.jpg","timeline_url":"https://static.media.ccc.de/media/regional/c4/openchaos/69f657a4-c06f-4865-aeff-0faf16bf6fe1-timeline.jpg","thumbnails_url":"https://static.media.ccc.de/media/regional/c4/openchaos/69f657a4-c06f-4865-aeff-0faf16bf6fe1-thumbnails.vtt","frontend_link":"https://media.ccc.de/v/c4.openchaos.2016.10.extreme-wetterereignisse-in-europa","url":"https://api.media.ccc.de/public/events/69f657a4-c06f-4865-aeff-0faf16bf6fe1","conference_title":"OpenChaos","conference_url":"https://api.media.ccc.de/public/conferences/oc","related":[{"event_id":2078,"event_guid":"7156e245-d372-44d9-af0f-cbaa2e089f2c","weight":14},{"event_id":2079,"event_guid":"f449c7b7-7c45-4cd3-9d82-7b91cae9567d","weight":12},{"event_id":2143,"event_guid":"1737331b-aff9-4ff4-b577-95636f9e5e67","weight":8},{"event_id":2316,"event_guid":"5468e017-bf80-4910-9616-4efd93efb9a2","weight":5},{"event_id":2408,"event_guid":"25d1ba3b-cf21-4d83-935d-d064f10a6035","weight":12},{"event_id":2451,"event_guid":"746c83c2-b29b-41e7-be5b-fafdfe923a5a","weight":16},{"event_id":2634,"event_guid":"c153ecc0-6ead-46ea-9bc7-8d2b774c4a3f","weight":18},{"event_id":2705,"event_guid":"55fccc39-c1bb-4d05-aa95-7188ad229f56","weight":10},{"event_id":2796,"event_guid":"3c066b63-c764-4571-bc3b-eb8dfbb5a6d9","weight":13},{"event_id":2958,"event_guid":"2714ce2a-4930-436e-b1e4-b461a6a79a15","weight":9},{"event_id":3034,"event_guid":"6e3c061e-495f-450b-ba96-c777c8669458","weight":8},{"event_id":3041,"event_guid":"29aaed8b-5b17-4feb-a9fc-7cc584682746","weight":10},{"event_id":3107,"event_guid":"57ef4367-5baf-40f5-84a1-89f9f9f29b4f","weight":7},{"event_id":3501,"event_guid":"cec35be5-a1f0-496b-82c9-c7ace338b50e","weight":21},{"event_id":3615,"event_guid":"74783236-46f4-493c-9574-1b27a44847b7","weight":8},{"event_id":3631,"event_guid":"c5d3d09f-f024-45e3-8ed3-07d44d327e0e","weight":5},{"event_id":3769,"event_guid":"5e96082f-cea6-41b5-9545-b2bc0b16c377","weight":5},{"event_id":3775,"event_guid":"f854e264-4728-472e-9e57-4dad6ea3d668","weight":10},{"event_id":3782,"event_guid":"dec1ddb6-e4f3-11e6-ba49-a38509dc3679","weight":5},{"event_id":3786,"event_guid":"9f730bc5-eb12-44e0-94e7-a65fd86490d9","weight":10},{"event_id":3787,"event_guid":"f3358998-1465-4445-885e-74d880be57d0","weight":19},{"event_id":3848,"event_guid":"e6746e7f-dca9-4265-86c7-0bef863d83a9","weight":23},{"event_id":4485,"event_guid":"da208942-2be8-4f14-9466-ba8e7b74fca8","weight":9},{"event_id":4606,"event_guid":"5400c892-12e3-4199-b976-a68b0b54c159","weight":16},{"event_id":4944,"event_guid":"868fbf54-2007-4c0e-9af3-63384bed9fa6","weight":7},{"event_id":5064,"event_guid":"762f9a23-ca2c-4391-a725-8651eb5a0609","weight":8},{"event_id":5252,"event_guid":"7805cae2-d664-441a-af87-555a2c5633a2","weight":11},{"event_id":5569,"event_guid":"d37bc91e-f1dd-4fbb-b793-c08b2436eecb","weight":7},{"event_id":5638,"event_guid":"bc119064-0b23-443b-82d4-55719d478151","weight":12},{"event_id":5832,"event_guid":"fcae0fe2-fc3b-466f-85d5-4777cd46099d","weight":7},{"event_id":6115,"event_guid":"93b7d8a6-345b-405a-a3f2-0dc09ddd2e28","weight":10},{"event_id":6233,"event_guid":"9fa9eae0-2d2f-4bce-a7f5-1983003b3db7","weight":10}],"recordings":[{"size":4469,"length":6818,"mime_type":"video/mp4","language":"deu","filename":"c4.openchaos.2016.10.extreme-wetterereignisse-in-europa.mp4","state":"new","folder":"2016/10","high_quality":true,"width":1920,"height":1080,"updated_at":"2016-11-13T22:36:03.603+01:00","recording_url":"https://cdn.media.ccc.de/contributors/koeln/open_chaos/2016/10/c4.openchaos.2016.10.extreme-wetterereignisse-in-europa.mp4","url":"https://api.media.ccc.de/public/recordings/13324","event_url":"https://api.media.ccc.de/public/events/69f657a4-c06f-4865-aeff-0faf16bf6fe1","conference_url":"https://api.media.ccc.de/public/conferences/oc"},{"size":3156,"length":6818,"mime_type":"video/webm","language":"deu","filename":"c4.openchaos.2016.10.extreme-wetterereignisse-in-europa.webm","state":"new","folder":"2016/10","high_quality":true,"width":1920,"height":1080,"updated_at":"2016-11-13T22:37:51.345+01:00","recording_url":"https://cdn.media.ccc.de/contributors/koeln/open_chaos/2016/10/c4.openchaos.2016.10.extreme-wetterereignisse-in-europa.webm","url":"https://api.media.ccc.de/public/recordings/13325","event_url":"https://api.media.ccc.de/public/events/69f657a4-c06f-4865-aeff-0faf16bf6fe1","conference_url":"https://api.media.ccc.de/public/conferences/oc"}]}