| 1. Identity statement | ||||
| Reference Type | Conference Paper (Conference Proceedings) | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34P/3N35FNS | |||
| Repository | sid.inpe.br/mtc-m21b/2016/12.20.11.46 | |||
| Last Update | 2021:02.26.12.56.38 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21b/2016/12.20.11.46.05 | |||
| Metadata Last Update | 2021:02.26.12.56.39 (UTC) simone | |||
| Secondary Key | INPE--PRE/ | |||
| Citation Key | CalvettiIBNMHGDN:2016:MeNuSi | |||
| Title | Measurements and Numerical Simulations of Wind Gusts on High-Power Transmission Towers  | |||
| Year | 2016 | |||
| Access Date | 2024, Apr. 29 | |||
| Secondary Type | PRE CI | |||
| Number of Files | 1 | |||
| Size | 3170 KiB | |||
| 2. Context | ||||
| Author | 1 Calvetti, Leonardo 2 Inouye, Rafael Toshio 3 Beneti, Cesar 4 Neundorf, Reverton 5 Maske, Bianca 6 Herdies, Dirceu Luis 7 Gonçalves, Luis Gustavo Gonçalves de 8 Diniz, Fábio Luiz Rodrigues 9 Noronha, Tiago | |||
| Resume Identifier | 1 2 3 4 5 6 8JMKD3MGP5W/3C9JGTU | |||
| Group | 1 2 3 4 5 6 DMD-CPT-INPE-MCTI-GOV-BR 7 DMD-CPT-INPE-MCTI-GOV-BR 8 MET-MET-SPG-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Instituto Tecnológico Simepar 2 Instituto Tecnológico Simepar 3 Instituto Tecnológico Simepar 4 5 6 Instituto Nacional de Pesquisas Espaciais (INPE) 7 Instituto Nacional de Pesquisas Espaciais (INPE) 8 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 2 3 4 5 6 dirceu.herdies@inpe.br 7 luis.goncalves@inpe.br 8 fabio.diniz@cptec.inpe.br | |||
| Conference Name | International Symposium on Nowcasting and Very-short-range Forecast, 4 (WSN) | |||
| Conference Location | Hong Kong | |||
| Date | 25-29 July | |||
| History (UTC) | 2016-12-20 11:46:33 :: simone -> administrator :: 2016 2021-01-02 03:57:22 :: administrator -> simone :: 2016 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Abstract | Since high-power transmission towers has been systematically blown down by wind gust during strong storms, sonic anemometers were installed in four towers in the west of Parana State, southern Brazil, to investigate the dynamic characteristics of these winds and their relationship with the storms. In three towers, sonic anemometers were installed in three levels, 10m, 20m and 30m. In another tower it was installed an additional sensor at 44m. The towers were located within a 60km radius distance of the dual-polarization S-band weather radar operated by the Meteorological System of Parana State (Simepar). High-resolution simulations (3 km) using WRF/NCAR MARS (Model Rapid Assimilation of Simepar) and 3DVAR data assimilation of radar reflectivity and radial velocity were performed for strong and moderate convection events. The assimilation module of MARS runs under a rapid updated cycle with radar data input every 15 minutes. Lateral boundary conditions were updated every hour using a 9km-grid WRF model named CAR, from the Center for Weather Forecasting and Climate Research of the National Institute for Spatial Research of Brazil (Cptec/Inpe). CAR is a WRF-based model that runs with GFS lateral boundary conditions and with an assimilation of satellite radiances, surface data and sounding observations in South America. The investigation shows that in some events, it was possible to verify a qualitative association between weak reflectivity signals and moderate (10 to 15 ms-1) gust measurements. High wind peaks (20 27 ms-1) were correlated with strong long-lived squall lines and severe convection associated with cold fronts. Although supercells have been observed in the region, they were not registered in any occurrence over the campaign area. Another interesting result found in the campaign was that during events with strong gusts (greater than 15 ms-1) the vertical structure of the wind becomes linear, probably due to the propagation of the gust fronts. Therefore, while the average wind profile has a exponential shape, during the storms the profile shift to linear with similar values from the 10m up to 44m level. The model has proven to be a useful tool to simulate the storms, but it cannot properly solve the observed intensity of the wind gusts. Better results were found increasing the horizontal resolution (up to 1km), vertical resolution (up to 60 levels) and time-step (up to 30s). Even with an assimilation cycle, the simulations showed a high-dependency with the position of the phenomena in the GFS initial conditions, indicating that if the analysis cycle does not indicate a correct location of a cold front or small troughs, the WRF cannot correct the position. The results of this research will be presented in this conference. | |||
| Area | MET | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > MET > Measurements and Numerical... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDMD > Measurements and Numerical... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| data URL | http://urlib.net/ibi/8JMKD3MGP3W34P/3N35FNS | |||
| zipped data URL | http://urlib.net/zip/8JMKD3MGP3W34P/3N35FNS | |||
| Language | en | |||
| Target File | calvetti-measurements2.pdf | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Mirror Repository | urlib.net/www/2011/03.29.20.55 | |||
| Next Higher Units | 8JMKD3MGPCW/3F35TRS 8JMKD3MGPCW/43SKC35 | |||
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.44.41 2 | |||
| Host Collection | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notes | ||||
| Empty Fields | archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readpermission rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype type url versiontype volume | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||