| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21d.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34T/44UH43E | |||
| Repository | sid.inpe.br/mtc-m21d/2021/06.28.13.50 (restricted access) | |||
| Last Update | 2021:06.28.13.50.13 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21d/2021/06.28.13.50.13 | |||
| Metadata Last Update | 2022:04.03.22.27.24 (UTC) administrator | |||
| DOI | 10.5194/nhess-21-1909-2021 | |||
| ISSN | 1684-9981 | |||
| Citation Key | PoelmanSPHSHSVMSW:2021:GlGrSt | |||
| Title | Global ground strike point characteristics in negative downward lightning flashes-Part 1: Observations  | |||
| Year | 2021 | |||
| Month | June | |||
| Access Date | 2024, May 19 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 501 KiB | |||
| 2. Context | ||||
| Author | 1 Poelman, Dieter R. 2 Schulz, Wolfgang 3 Pedeboy, Stephanie 4 Hill, Dustin 5 Saba, Marcelo Magalhães Fares 6 Hunt, Hugh 7 Schwalt, Lukas 8 Vergeiner, Christian 9 Mata, Carlos T. 10 Schumann, Carina 11 Warner, Tom | |||
| Resume Identifier | 1 2 3 4 5 8JMKD3MGP5W/3C9JHP6 | |||
| Group | 1 2 3 4 5 DISSM-CGCT-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Royal Meteorological Institute of Belgium 2 Austrian Lightning Detection and Information System (ALDIS) 3 Météorage 4 Scientific Lightning Solutions LLC (SLS) 5 Instituto Nacional de Pesquisas Espaciais (INPE) 6 University of Witwatersrand 7 Graz University of Technology 8 Graz University of Technology 9 Scientific Lightning Solutions LLC (SLS) 10 University of Witwatersrand 11 ZT Research | |||
| Author e-Mail Address | 1 dieter.poelman@meteo.be 2 w.schulz@ove.at 3 4 5 marcelosaba@gmail.com | |||
| Journal | Natural Hazards and Earth System Sciences | |||
| Volume | 21 | |||
| Number | 6 | |||
| Pages | 1909-1919 | |||
| Secondary Mark | A2_GEOGRAFIA A2_GEOCIÊNCIAS B2_ENGENHARIAS_III | |||
| History (UTC) | 2021-07-02 17:59:03 :: simone -> administrator :: 2021 2022-04-03 22:27:24 :: administrator -> simone :: 2021 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Version Type | publisher | |||
| Abstract | Information about lightning properties is important in order to advance the current understanding of lightning, whereby the characteristics of ground strike points (GSPs) are in particular helpful to improving the risk estimation for lightning protection. Lightning properties of a total of 1174 negative downward lightning flashes are analyzed. The high-speed video recordings are taken in different regions, including Austria, Brazil, South Africa and the USA, and are analyzed in terms of flash multiplicity, duration, interstroke intervals and ground strike point properties. According to our knowledge this is the first simultaneous analysis of GSP properties in different regions of the world applying a common methodology. Although the results vary among the data sets, the analysis reveals that a third of the flashes are single-stroke events, while the overall mean number of strokes per flash equals 3.67. From the video imagery an average of 1.56 GSPs per flash is derived, with about 60% of the multiple-stroke flashes striking the ground in more than one place. It follows that a ground contact point is struck 2.35 times on average. Multiple-stroke flashes last on average 371ms, whereas the geometric mean (GM) interstroke interval value preceding strokes producing a new GSP is about 18% greater than the GM value preceding subsequent strokes following a pre-existing lightning channel. In addition, a positive correlation between the duration and multiplicity of the flash is presented. The characteristics of the subset of flashes exhibiting multiple GSPs is further examined. It follows that strokes with a stroke order of 2 create a new GSP in 60% of the cases, while this percentage quickly drops for higher-order strokes. Further, the possibility of forming a new lightning channel to ground in terms of the number of strokes that conditioned the previous lightning channel shows that approximately 88% developed after the occurrence of only one stroke. Investigating the time intervals in the other 12% of the cases when two or more strokes re-used the previous lightning channel showed that the average interstroke time interval preceding a new lightning channel is found to be more than twice the time difference between strokes that follow the previous lightning channel. | |||
| Area | MET | |||
| Arrangement | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGCT > Global ground strike... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| Language | en | |||
| Target File | poelman_global1.pdf | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Read Permission | deny from all and allow from 150.163 | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/46KUATE | |||
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.54.40 1 | |||
| Dissemination | WEBSCI; PORTALCAPES; SCOPUS. | |||
| Host Collection | urlib.net/www/2021/06.04.03.40 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn keywords label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||