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1. Identificação
Tipo de ReferênciaArtigo em Evento (Conference Proceedings)
Sitemtc-m21d.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34T/487DMML
Repositóriosid.inpe.br/mtc-m21d/2022/12.14.22.42
Repositório de Metadadossid.inpe.br/mtc-m21d/2022/12.14.22.42.06
Última Atualização dos Metadados2023:01.03.16.46.28 (UTC) administrator
Chave SecundáriaINPE--PRE/
Chave de CitaçãoZeriCuCuCuDoGaGu:2022:CoDrPr
TítuloCommunicating Drought Propagation in Brazil Using in-situ and Remote Sensing Data
Ano2022
Data de Acesso10 maio 2024
Tipo SecundárioPRE CI
2. Contextualização
Autor1 Zeri, Marcelo
2 Cunha, Ana Paula
3 Cunningham, Christopher A.
4 Cunha Zeri, Gisleine da Silva
5 Donato, Keylla
6 Galdos, Marcelo Valadares
7 Guedes, Márcia R. G.
Grupo1
2
3
4 CST-CST-DIPGR-INPE-MCTI-GOV-BR
Afiliação1 Centro Nacional de Monitoramento e Alertas de Desastres Naturais (CEMADEN) 
2 Centro Nacional de Monitoramento e Alertas de Desastres Naturais (CEMADEN) 
3 Centro Nacional de Monitoramento e Alertas de Desastres Naturais (CEMADEN) 
4 Instituto Nacional de Pesquisas Espaciais (INPE)
5 Universidade Federal de São Paulo (UNIFESP)
6 Rothamsted Research
7 Centro Nacional de Monitoramento e Alertas de Desastres Naturais (CEMADEN) 
Endereço de e-Mail do Autor1
2
3
4 giscunhazeri@gmail.com
Nome do EventoAGU Fall Meeting
Localização do EventoChicago, IL
Data12-16 Dec. 2022
Editora (Publisher)AGU
Histórico (UTC)2022-12-14 22:42:06 :: simone -> administrator ::
2022-12-20 10:35:42 :: administrator -> simone :: 2022
2022-12-20 13:42:38 :: simone -> administrator :: 2022
2023-01-03 16:46:28 :: administrator -> simone :: 2022
3. Conteúdo e estrutura
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Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
ResumoDrought is a climate hazard which evolves into a natural disaster depending on its intensity, duration and vulnerability of regions and populations. The onset of drought is caused by negative rainfall anomalies in time scales of several months (meteorological drought). Depending on the duration and intensity of rainfall anomalies, meteorological drought evolves into agricultural drought, when soil moisture is reduced, affecting plant development and crop yields over rainfed agriculture. The impacts of agricultural drought can be inferred using remote sensing vegetation indices such as the Normalized Difference Vegetation Index (NDVI) or the Fraction of Absorbed Photosynthetically Active Radiation (FAPAR), among others. The combination of rainfall anomalies, soil moisture and vegetation status can be used to assess the intensity and propagation of drought. In this work, a drought propagation scheme is presented. The Drought Propagation Index (DPI) discussed here is based on the European Drought Observatorys Combined Drought Index (CDI), which has three stages of drought and two for recovery. While CDI makes use of soil moisture from a land surface model and FAPAR, DPI is based on satellite data of soil moisture and vegetation health. DPIs first stage of drought is warning, related to values of the Standardized Precipitation Index (SPI) on 1 and 3-months scale; SPI is calculated using a long-term database of precipitation records over Brazil. The second stage is observation, when both SPI and Root Zone Soil Moisture percentile (RZSM) are considered; RZSM is derived from NASA's Gravity Recovery and Climate Experiment (GRACE). The third stage of drought is alert, based on values of SPI and Vegetation Health Index (VHI), derived from NOAAs satellites (National Oceanic and Atmospheric Administration). The first level of recovery is based on critical values of VHI associated with positive values of SPI in the current month. Finally, the full recovery status is based on positive values of SPI and normal values of VHI. Preliminary results show that DPI correctly characterized the propagation of drought over different biomes in Brazil, especially from 2012 to 2016 over the Brazilian Northeast. Lags between observation and alert stages differed between biomes due to plants different resilience to water stress.
ÁreaCST
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4. Condições de acesso e uso
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5. Fontes relacionadas
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6. Notas
Campos Vaziosarchivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label language lineage mark mirrorrepository nextedition notes numberoffiles numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisheraddress readpermission resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle size sponsor subject targetfile tertiarymark tertiarytype type url versiontype volume
7. Controle da descrição
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