2019
DOI: 10.1002/joc.6380
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Terrestrial water storage and Pacific SST affect the monthly water balance of Itacaiúnas River Basin (Eastern Amazonia)

Abstract: At subannual timescales, terrestrial water storage (TWS) plays a critical role in the partitioning of precipitation into runoff and evapotranspiration, and Amazonia stands out due to the great amplitude of the annual cycles. In this study, we analyse the monthly variation of the water balance and extreme hydrological events using GRACE data for a watershed situated in the "arc-ofdeforestation" in the Eastern Brazilian Legal Amazon. The existence of a correlation and lag time response between the monthly sea su… Show more

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Cited by 8 publications
(5 citation statements)
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“…The number of hotspots in forests during the latter years may have been overestimated, as a LULC classification of the area for 2017 (Nunes et al, 2019) showed that 6% of the forest area was deforested and 6% of the deforested areas was reforested relative to 2013. In 2015, a severe drought caused by El Niño occurred in eastern Pará state, which caused an abnormally long dry season and low levels of soil water storage in 2016 (Cavalcante et al 2019). This phenomenon may explain the high number of days with hotspots at the beginning of the 2016 dry season despite normal rainfall.…”
Section: Hotspots In Canaã Dos Carajásmentioning
confidence: 99%
“…The number of hotspots in forests during the latter years may have been overestimated, as a LULC classification of the area for 2017 (Nunes et al, 2019) showed that 6% of the forest area was deforested and 6% of the deforested areas was reforested relative to 2013. In 2015, a severe drought caused by El Niño occurred in eastern Pará state, which caused an abnormally long dry season and low levels of soil water storage in 2016 (Cavalcante et al 2019). This phenomenon may explain the high number of days with hotspots at the beginning of the 2016 dry season despite normal rainfall.…”
Section: Hotspots In Canaã Dos Carajásmentioning
confidence: 99%
“…Eventos extremos têm forte influência sobre o ciclo hidrológico de uma determinada região e este, por sua vez, está intimamente relacionado à disponibilidade hídrica. Diversos estudos têm investigado os impactos dos eventos extremos e desmatamento sobre o balanço hídrico (BRÊDA et al, 2020;CASAGRANDE et al, 2021;CAVALCANTE et al, 2020;CAVALCANTE et al, 2019;COUTINHO et al, 2018;FARINOSI et al, 2019). Entre os resultados observados, destacam-se a redução da precipitação (BRÊDA et al, 2020), redução na evaporação e transpiração (BRÊDA et al, 2020;CASAGRANDE et al, 2021) e na vazão dos rios (BRÊDA et al, 2020).…”
Section: Introductionunclassified
“…A Floresta Amazônica vem sofrendo uma intensa alteração em seu uso e ocupação do solo, principalmente devido à conversão de florestas em sistemas agropecuários (DAVIDSON et al, 2012;FEARNSIDE, 2011). Consequentemente ocorrem alterações no ecossistema, nas propriedades do solo, nas trocas gasosas, no padrão climático, principalmente nos eventos extremos (BRÊDA et al, 2020;CASAGRANDE et al, 2021;CAVALCANTE et al, 2020;DAVIDSON et al, 2012). Coe et al (2017) sugerem que a fronteira agrícola do Brasil será muito mais quente e mais seca nas próximas décadas, visto que as concentrações de gases de efeito estufa (GEE) estão aumentando.…”
Section: Introductionunclassified