1 / 14

Lightnings

Lightnings. Elisabeth Lamprecht Comenius 2010. List of contents. ALDIS: history , tasks and products EUCLID Lightning radar : radar positions national and international, how it works Beginning of lightning Different kinds of lightning Statistical evaluation , visualising

bobby
Download Presentation

Lightnings

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lightnings Elisabeth Lamprecht Comenius 2010

  2. List of contents ALDIS: history, tasks and products EUCLID Lightningradar: radarpositions national and international, howitworks Beginning of lightning Different kinds of lightning Statisticalevaluation, visualising How to behaveduringlightnings

  3. ALDIS • ALDIS: Austrian LightningDetectionand Information System • Cooperation of OVE (Austrian Union of Electronics), Siemens and thefederation of locating and documatinglightnings in Europe • ALDIS deliversexactlightningfacts to weatherservices, insurancecompanies, experts and energysupplycompanies. • ALDIS was putintooperation in 1992, afteroneyear of testing. Sincethat ALDIS has registeredstormactivities all overAustria and has savedtheseinformation in a databank.

  4. EUCLID • EUCLID: EUropeanCooperationforLIghtningDetection • EUCLID is a cooperation of different lihghtningdetectingcompanies all over Europe. • Members: Austria, Hungary, Germany, France, Finland, Luxembourg, Belgium, theNetherlands, Switzerland, Slovenia, Italy, Poland, Norway, Sweden, Denmark, …

  5. Lightning-radar-national • In Austriathereare 8 so called LS7000 sensores, thatregisterthelightningactivities. • Themeasuredinformationis send digitally to a lihtningprocessor. • Eachsensor has a registeringradius of 400 km. Consequentlyeverylightningsignalisregisteredby at least 4 sensores. • Theexactness of measurementisabout100 m.

  6. Lightning-radar-international • The 8 ALDIS-sensoresareintegrated in the European EUCLID-net. • Thepicture on the right shows all lightningsensores in Europe (red points).

  7. Lightning-radar-Howitworks • moreinformation: time, polarisation (positiv or negativ), poweramplitude kA. • For calculatingthelocation of thelightningyouhaveto usetrigonometry.

  8. Beginning of lightning • Thelightningdischarge has itsorigin in thechargedstormcloud. • Withinthestormcloudthevertical wind produces a separation of charges. • Thedischargefollows 3 steps: leadinglightning, catchingdischarge, • maindischarge.

  9. Different kinds of lightning • Cloud-cloud-lightning • Cloud-ground-lightning • Ground-cloud-lightning • Positive and negative lightning • Kugel-lightning • Elms-fire • Line-lightning • Area-lightning

  10. Statisticalevaluation • In thepicturetheaveragelightningactivityduring 1992 and 2001 isshown. • Thereareimportantregionallydifferences.

  11. Statisticalevaluation

  12. How to behaveduringlightning

  13. Thanksforyourattention

  14. Quellen • www.aldis.at • www.euclid.org

More Related