| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34P/3MQNLQ2 | |||
| Repository | sid.inpe.br/mtc-m21b/2016/11.17.12.00 (restricted access) | |||
| Last Update | 2016:12.28.18.19.39 (UTC) administrator | |||
| Metadata Repository | sid.inpe.br/mtc-m21b/2016/11.17.12.00.43 | |||
| Metadata Last Update | 2021:03.06.05.21.34 (UTC) administrator | |||
| DOI | 10.3844/ajeassp.2016.484.504 | |||
| ISSN | 1941-7020 | |||
| Citation Key | MartinsGonçPere:2016:ObStWi | |||
| Title | Observational study of wind shear in Northeastern Brazil  | |||
| Year | 2016 | |||
| Access Date | 2024, May 16 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 1992 KiB | |||
| 2. Context | ||||
| Author | 1 Martins, F. R. 2 Gonçalves, André Rodrigues 3 Pereira, Enio Bueno | |||
| Resume Identifier | 1 2 3 8JMKD3MGP5W/3C9JH2E | |||
| Group | 1 2 CST-CST-SPG-INPE-MCTI-GOV-BR 3 CST-CST-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Universidade Federal de São Paulo (UNIFESP) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 fernando.martins@unifesp.br 2 andre.goncalves@inpe.br 3 enio.pereira@inpe.br | |||
| Journal | American Journal of Engineering and Applied Sciences | |||
| Volume | 9 | |||
| Number | 3 | |||
| Pages | 484-504 | |||
| History (UTC) | 2016-11-17 12:01:05 :: simone -> administrator :: 2016 2021-03-06 05:21:34 :: 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 | |||
| Version Type | publisher | |||
| Keywords | Atmospheric boundary layer Experimental data Wind energy Wind shear | |||
| Abstract | The wind energy share is growing fast in Brazil and a better understanding of wind speed vertical profiles is essential for accurate power density estimates. The wind shear is highly variable in space and time, being influenced by surface layer stability. Studies concerning wind vertical profiles may have a significant contribution to the Brazilian energy sector. However, wind observational data are very scarce and most of them were acquired in automated weather stations. This work investigates the wind vertical profile data acquired at a wind mast in a semi-arid region of Brazilian Northeastern region, correlating it to stability conditions of the surface boundary layer, surface roughness and friction velocity. The results indicated that strong winds (>7 m sec−1) overcome the stability effects, allowing a better estimate of roughness length, friction velocity and exponential coefficient. In a second step, the wind speed at 50 m agl. Were estimated from wind measurements at 25 m agl. The wind estimates were compared to observations, showing that exponential and logarithmic approaches were able to simulate wind profile. The exponential approach presented the lowest BIAS for rainy season, but overestimated high wind velocities. Finally, a sensitivity analysis demonstrated how uncertainties on roughness length and exponential coefficient impacts on BIAS deviation and reduce the confidence on wind power density estimates. The results demonstrated the importance in understanding how wind vertical profile is related to atmospheric stability condition in order to get reliable values for the shear parameters from mast observations. It is still more critical if wind database is short-term and when dealing with lower wind speeds. | |||
| Area | CST | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > COCST > Observational study of... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > CST > Observational study of... | |||
| 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 | enio_study.pdf | |||
| User Group | self-uploading-INPE-MCTI-GOV-BR simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Read Permission | deny from all and allow from 150.163 | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Mirror Repository | urlib.net/www/2011/03.29.20.55 | |||
| Next Higher Units | 8JMKD3MGPCW/3F3T29H 8JMKD3MGPCW/449U4PL | |||
| Citing Item List | sid.inpe.br/bibdigital/2013/10.19.20.40 4 sid.inpe.br/mtc-m21/2012/07.13.14.45.21 3 sid.inpe.br/bibdigital/2021/03.06.05.18 2 | |||
| Dissemination | PORTALCAPES; SCOPUS. | |||
| Host Collection | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark month nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey secondarymark session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||