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/3ASR2K5 |
Repository | sid.inpe.br/mtc-m19/2011/11.30.12.05 (restricted access) |
Last Update | 2011:11.30.12.10.17 (UTC) administrator |
Metadata Repository | sid.inpe.br/mtc-m19/2011/11.30.12.05.17 |
Metadata Last Update | 2018:06.05.04.25.05 (UTC) administrator |
Secondary Key | INPE--PRE/ |
Citation Key | ValverdeMare:2011:RaExEv |
Title | Rainfall extremes events climatology over the Amazon basin |
Year | 2011 |
Access Date | 2024, Apr. 18 |
Secondary Type | PRE CI |
Number of Files | 1 |
Size | 691 KiB |
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2. Context | |
Author | 1 Valverde, Maria Cleófe 2 Marengo, José Antonio |
Group | 1 CST-CST-INPE-MCT-BR 2 CST-CST-INPE-MCT-BR |
Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) |
Author e-Mail Address | 1 maria.valverde@cptec.inpe.br 2 jose.marengo@inpe.br |
Conference Name | Proceedings of the Global Conference on Global Warming 2011. |
Conference Location | Lisbon, Portugal |
Date | 11-14, July |
Tertiary Type | Paper |
History (UTC) | 2011-11-30 12:10:17 :: valdirene -> administrator :: 2011 2018-06-05 04:25:05 :: administrator -> valdirene :: 2011 |
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3. Content and structure | |
Is the master or a copy? | is the master |
Content Stage | completed |
Transferable | 1 |
Content Type | External Contribution |
Keywords | Amazon basin climatic extremes heavy rainfall and regional model |
Abstract | The purpose of this study is to elaborate the climatology of extremes indices of rainfall in the Amazon basin. For this purpose, climatic indices (CDD, R95p, RX1day, Rnnmm) recommended by the joint World Meteorological Organization CCL/CLIVAR/JCOMM Expert Team on Climate Change Detection and Indices (ETCCDI) were calculated. One of the most important aspects of this study is to characterize possible change in extreme of rainfall (e.g. floods, drought, etc) over Amazon basin, since these events have strongest impacts on society. Extremes indices were derived from daily precipitation at NOAALs Climate Prediction Center (CPCp) with resolution 1x1, for period 1979-2005. The indices calculated in this study are R50mm and R80mm defined as the number of days per year with precipitation amount . 50 mm and . 80mm respectively. CDD defined as annual maximum number of consecutive dry days and R95p (very wet days exceeding the 95th percentile).These indices can be related to drought (CDD) and floods (R95p) events. The rainfall of Amazon basin exhibits high interannual and interdecadal variability associated with ENSO events and with the positive anomaly of SST in the North Atlantic. The annual variability of extreme precipitation indices, such as, maximum length of dry spells (CDD) and RR> 95p (R95p) were sensitive to identification periods of droughts. Also, it verified that extreme rains . 50mm and . 80 mm (R50mm and R80mm), occur with or without events El Nino. On the other hand, droughts are not necessarily associated with a diminution of extreme rainfall events (R50mm e R80mm). Individual locations in the west of the basin (Santarem, Cachimbo and Manaus stations) show negative trends of CDD. However, Rio Branco station (southeast of basin) showed statistically significant positive trends of CDD, and captured the drought of 2005 and 2010. The future scenarios of ETA_HadCM3 model for the period 2011-2040, show an increase (decrease) of the index CDD (R95p) for the average area of the Amazon basin, and it will be stronger in the 2071-2099 climatology. However, as this result is a projection of model there are still many uncertainties. The fact is that historically these extremes of rain are part of climate variability in the region, and they can happen again. |
Area | CST |
Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > COCST > Rainfall extremes events... |
doc Directory Content | access |
source Directory Content | there are no files |
agreement Directory Content | |
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4. Conditions of access and use | |
Target File | MariaValverde_Rainfall.pdf |
User Group | administrator valdirene |
Visibility | shown |
Read Permission | deny from all and allow from 150.163 |
Update Permission | not transferred |
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5. Allied materials | |
Mirror Repository | sid.inpe.br/mtc-m19@80/2009/08.21.17.02.53 |
Next Higher Units | 8JMKD3MGPCW/3F3T29H |
Host Collection | sid.inpe.br/mtc-m19@80/2009/08.21.17.02 |
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6. Notes | |
Empty Fields | archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn label language lineage mark nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark type url versiontype volume |
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7. Description control | |
e-Mail (login) | valdirene |
update | |
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