| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21c.sid.inpe.br (namespace prefix: upn:3Q3U5H8) | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34R/42EDDJ8 | |||
| Repository | sid.inpe.br/mtc-m21c/2020/05.05.11.34 (restricted access) | |||
| Last Update | 2020:05.05.11.34.01 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21c/2020/05.05.11.34.01 | |||
| Metadata Last Update | 2022:01.04.01.35.07 (UTC) administrator | |||
| DOI | 10.3390/geosciences10040135 | |||
| ISSN | 2076-3263 | |||
| Citation Key | RochaJúniorSiCoGoPiHe:2020:BiAsDr | |||
| Title | Bivariate assessment of drought return periods and frequency in brazilian northeast using joint distribution by copula method  | |||
| Year | 2020 | |||
| Month | apr. | |||
| Access Date | 2025, Dec. 07 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 4397 KiB | |||
| 2. Context | ||||
| Author | 1 Rocha Júnior, Rodrigo Lins da 2 Silva, Fabrício Daniel dos Santos 3 Costa, Rafaela Lisboa 4 Gomes, Heliofábio Barros 5 Pinto, David Duarte Cavalcante 6 Herdies, Dirceu Luís | |||
| Resume Identifier | 1 2 3 4 5 6 8JMKD3MGP5W/3C9JGTU | |||
| ORCID | 1 0000-0003-4654-8947 2 0000-0002-3185-6413 3 4 5 6 0000-0002-2872-8453 | |||
| Group | 1 2 3 4 5 6 DIDMD-CGCPT-INPE-MCTIC-GOV-BR | |||
| Affiliation | 1 Universidade Federal de Alagoas (UFAL) 2 Universidade Federal de Alagoas (UFAL) 3 Universidade Federal de Alagoas (UFAL) 4 Universidade Federal de Alagoas (UFAL) 5 Universidade Federal de Alagoas (UFAL) 6 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 rrodrigo.junior@hotmail.com 2 fabricio.santos@icat.ufal.br 3 rafaelalisboac@gmail.com 4 heliofabio@icat.ufal.br 5 david.duarte@icat.ufal.br 6 dirceu.herdies@inpe.br | |||
| Journal | Geosciences (Switzerland) | |||
| Volume | 10 | |||
| Number | 4 | |||
| Pages | e135 | |||
| Host Collection | urlib.net/www/2017/11.22.19.04 upn:3Q3U5H8 | |||
| History (UTC) | 2020-06-23 22:31:43 :: simone -> administrator :: 2020 2022-01-04 01:35:07 :: administrator -> simone :: 2020 | |||
| 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 | meteorological drought analysis Standardized Precipitation Index (SPI) archimedean copulas probability distributions | |||
| Abstract | The Northeast region of Brazil (NRB) is the most populous semiarid area in the world and is extremely susceptible to droughts. The severity and duration of these droughts depend on several factors, and they do not necessarily follow the same behavior. The aim of this work is to evaluate the frequency of droughts in the NRB and calculate the return period of each drought event using the copula technique, which integrates the duration and severity of the drought in the NRB in a joint bivariate distribution. Monthly precipitation data from 96 meteorological stations spatially distributed in the NRB, ranging from 1961 to 2017, are used. The copula technique is applied to the Standardized Precipitation Index (SPI) on the three-month time scale, testing three families of Archimedean copula functions (Gumbel-Hougaard, Clayton and Frank) to reveal which model is best suited for the data. Averagely, the most frequent droughts observed in the NRB are concentrated in the northern sector of the region, with an observed duration varying from three and a half to five and a half months. However, the eastern NRB experiences the most severe droughts, lasting for 14 to 24 months. The probability distributions that perform better in modeling the series of severity and duration of droughts are exponential, normal and lognormal. The observed severity and duration values show that, for average values, the return period across the region is approximately 24 months. Still in this regard, the southernmost tip of the NRB stands out for having a return period of over 35 months. Regarding maximum observed values of severity and duration, the NRB eastern strip has the longest return period (>60 months), mainly in the southeastern portion where a return period above 90 months was observed. The northern NRB shows the shortest return period (~45 months), indicating that it is the NRB sector with the highest frequency of intense droughts. These results provide useful information for drought risk management in the NRB. | |||
| Area | MET | |||
| Arrangement | urlib.net > BDMCI > Fonds > Produçăo anterior ŕ 2021 > DIDMD > Bivariate assessment 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 | geosciences-10-00135.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/43SKC35 | |||
| Citing Item List | sid.inpe.br/bibdigital/2021/01.01.17.20 - 20 sid.inpe.br/mtc-m21/2012/07.13.14.44.41 - 18 | |||
| Dissemination | PORTALCAPES; SCOPUS. | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes 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 | ||||