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1. Identity statement
Reference TypeConference Abstract (Conference Proceedings)
Sitemtc-m16d.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP7W/3CF6EH5
Repositorysid.inpe.br/mtc-m19/2012/08.16.18.23
Metadata Repositorysid.inpe.br/mtc-m19/2012/08.16.18.23.52
Metadata Last Update2021:03.06.19.30.42 (UTC) administrator
Secondary KeyINPE--PRE/
Citation KeyBormaTomCuaArrSil:2012:HyReAm
TitleHydrological response of the Amazon basin to drought events of 1997/98, 2005 and 2010
Year2012
Access Date2024, Mar. 29
Secondary TypePRE CI
2. Context
Author1 Borma, L. S.
2 Tomasella, Javier
3 Cuartas, E. M
4 Arraut, T. S. F
5 Silva, D. A. Rodrigues
Resume Identifier1
2 8JMKD3MGP5W/3C9JHE3
Group1 CST-CST-SPG-INPE-MCTI-GOV-BR
2 DOP-CPT-INPE-MCTI-GOV-BR
3 CST-CST-SPG-INPE-MCTI-GOV-BR
4 CST-CST-SPG-INPE-MCTI-GOV-BR
5 CST-CST-SPG-INPE-MCTI-GOV-BR
Affiliation1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Instituto Nacional de Pesquisas Espaciais (INPE)
4 Instituto Nacional de Pesquisas Espaciais (INPE)
5 Instituto Nacional de Pesquisas Espaciais (INPE)
Conference NamePlanet Under Pressure Conference, (PUP).
Conference LocationLondon
Date26-29 Mar. 2012
Book TitleAbstracts
Tertiary TypePoster Session
History (UTC)2013-02-06 11:05:02 :: marciana -> administrator :: 2012
2021-03-06 19:30:42 :: administrator -> marciana :: 2012
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
KeywordsAmazon basin
drought
flooding
AbstractWhile there is an increasing understanding on forest response to severe droughts episodes recently occurred in Amazon region (e.g. tree mortality rates, live biomass, CO2 exchanges and forest resilience), there has been not so many works on the hydrological response of the region to rainfall anomalies. The analysis of river discharges along the main stem and major tributaries during the drought episodes of 1997/98, 2005 and 2010 shows that they were of increasing intensities. Discharges well above the historical levels on the southern tributaries restricted the 1997/98 temporal and spatial drought coverage, lasting around 3 months during the low water period and being spatially restricted to the northern tributaries. The 2005 drought lasted the entire period of low water (4-5 months) and was mainly driven by the low discharges coming from the southern tributaries. The high water season presented discharges slightly above the historical means. Finally, the 2010 drought lasted 4-5 months. The discharges dropped to values well below the historical average during the low water and slightly below the historical average during the high water season, mainly driven by the southern tributaries. Additionally, the northern tributaries showed a strong decrease of the discharge during the preceding high water season, which may have affected the groundwater recharge, fully expanding the impact of decreasing rainfall during the dry season. An analysis of the dynamic of the flooding coverage using MODIS sensor shows that between 2000 and 2010, the smallest flooded area occurred in 2005 (36.000 km2) and 2010 (37.800 km2) years. The reduction in flooded area - and the associated increase in the area of exposed soil has a direct relationship with the lives of the riverine communities during extreme drought episodes, as indicated by the number of municipalities which declared state of emergency, according to the Civil Defense data.
AreaCST
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4. Conditions of access and use
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Reader Groupadministrator
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Visibilityshown
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Update Permissionnot transferred
5. Allied materials
Mirror Repositorysid.inpe.br/mtc-m19@80/2009/08.21.17.02.53
Next Higher Units8JMKD3MGPCW/43SQKNE
8JMKD3MGPCW/449U4PL
Host Collectionsid.inpe.br/mtc-m19@80/2009/08.21.17.02
6. Notes
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