| 1. Identity statement | |
| Reference Type | Conference Paper (Conference Proceedings) |
| Site | mtc-m16d.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 8JMKD3MGP7W/36HUMCB |
| Repository | sid.inpe.br/mtc-m19@80/2009/12.11.16.27 |
| Last Update | 2009:12.11.16.27.05 (UTC) administrator |
| Metadata Repository | sid.inpe.br/mtc-m19@80/2009/12.11.16.27.06 |
| Metadata Last Update | 2022:03.26.17.49.52 (UTC) administrator |
| Secondary Key | INPE--PRE/ |
| Citation Key | MullerCavaFern:2009:AvMuFr |
| Title | Avaliação das mudanças na frequência de sistemas frontais para o Sul da América do Sul no clima futuro  |
| Format | On-line |
| Year | 2009 |
| Access Date | 2024, May 15 |
| Secondary Type | PRE CI |
| Number of Files | 1 |
| Size | 453 KiB |
| 2. Context | |
| Author | 1 Kelen Martins Andrade 2 Muller, Gabriela V. 3 Cavalcanti, Iracema Fonseca de Albuquerque 4 Fernandez, Maria Elena |
| Resume Identifier | 1 2 3 8JMKD3MGP5W/3C9JHDE |
| Group | 1 2 3 DMA-CPT-INPE-MCT-BR |
| Affiliation | 1 2 3 Instituto Nacional de Pesquisas Espaciais (INPE) |
| e-Mail Address | deicy.farabello@cptec.inpe.br |
| Conference Name | Congreso Latino Americano e Iberico de Meteorologia, 13 e Congreso Argentino de Meteorologia, 10. |
| Conference Location | Buenos Aires, AR |
| Date | 5-9 oct. |
| Tertiary Type | Poster |
| History (UTC) | 2010-01-11 11:04:20 :: deicy -> administrator :: 2022-03-26 17:49:52 :: administrator -> marciana :: 2009 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Keywords | frontal systems climate change South America |
| Abstract | A freqüência de sistemas frontais sobre o sul da América do Sul é comparada com a reanálise, NCEP/NCAR e resultados do cenário A2 no clima futuro dos modelos GFDL e Hadley. Para o clima presente o período analisado foi 1961-1990 e para o cenário futuro 2081-2100 de maio a setembro. As análises para identificar casos de sistemas frontais foram feitas nas em 3regiões: área 1 (52W-57W, 23S- 28S); área 2 (52W-57W, 28S-33S) e área 3 (65W-60W, 33S-38S). Para a identificação dos sistemas frontais foi utilizado o seguinte critério: aumento da pressão ao nível médio do mar, queda de temperatura e mudança da componente meridional do vento em 850 hPa, em dois dias consecutivos. Neste estudo foi selecionado também casos com queda de temperatura superior a 5 graus, sendo estes considerados mais intensos. Para o clima presente observou-se que os modelos analisados simularam bem as características sinóticas dos sistemas frontais. No entanto, quando se compara a freqüência de ocorrência das frentes entre a reanálise e as simulações, observa-se que os modelos GFDL e Hadley superestimaram seu número. O modelo Hadley superestima ainda mais em relação ao NCEP e GFDL tanto no clima presente quanto no futuro. No entanto, quando se seleciona os casos mais intensos o modelo GFDL é o que superestima mais o número de sistemas frontais. ABSTRACT: The frequency of frontal systems reaching the south of South America is compared with reanalysis, NCEP/NCAR, and results of the A2 scenario for future climate models GFDL e Hadley. For the present climate the analyzed period was 1961-1990 and for future it was the scene 2081-2100 from May to September. The analyses to identify the cases of frontal systems had been made in 3 regions: area 1 (52W-57W, 23S-28S); area 2 (52W-57W, 28S- 33S) and area 3 (65W-60W, 33S-6S). For the identification of the frontal system was used the following criteria: increase of sea surface pressure, reduction of the temperature and change of the meridional wind at 850hPa, in two consecutive days. In this study was also selected cases with drop of temperature above 5 degrees and they were considered the most intense. For the present climate it was observed that the analyzed models had simulated well the synoptic characteristics of frontal systems. However, when compared the frequency of occurrence of the fronts between reanalysis data and models simulations, we observed that the GFDL and Hadley models overestimated their numbers. The Hadley model overestimates further more than the NCEP and GFDL ones, both present climate and future. However, when it is selected the most intense systems, the GFDL model is the one that most overestimates the number of frontal systems. |
| Area | MET |
| Arrangement | urlib.net > BDMCI > Fonds > Produção até 2016 > DMA > Avaliação das mudanças... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| data URL | http://urlib.net/ibi/8JMKD3MGP7W/36HUMCB |
| zipped data URL | http://urlib.net/zip/8JMKD3MGP7W/36HUMCB |
| Language | pt |
| Target File | congremet_kelen.pdf |
| User Group | administrator deicy administrator |
| Visibility | shown |
| 5. Allied materials | |
| Mirror Repository | sid.inpe.br/mtc-m19@80/2009/08.21.17.02.53 |
| Next Higher Units | 8JMKD3MGPCW/46JKC45 |
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.50.18 1 |
| Host Collection | sid.inpe.br/mtc-m19@80/2009/08.21.17.02 |
| 6. Notes | |
| Empty Fields | archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination documentstage doi edition editor electronicmailaddress isbn issn label lineage mark nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup readpermission rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark type url versiontype volume |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |