DOI: 10.1002/joc.5224
论文题名: Contrasting patterns of the extreme drought episodes of 2005, 2010 and 2015 in the Amazon Basin
作者: Panisset J.S. ; Libonati R. ; Gouveia C.M.P. ; Machado-Silva F. ; França D.A. ; França J.R.A. ; Peres L.F.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38, 期: 2 起始页码: 1096
结束页码: 1104
语种: 英语
英文关键词: Amazon Basin
; drought
; LST
; precipitation
; solar radiation
Scopus关键词: Climate change
; Environmental impact
; Precipitation (chemical)
; Solar radiation
; Amazon basin
; Climate fluctuations
; Future climate scenarios
; Land surface temperature
; Meteorological variables
; Precipitation deficits
; Seasonal variability
; Social and environmental impact
; Drought
; climate variation
; comparative study
; drought
; extreme event
; humid environment
; land surface
; precipitation (climatology)
; regional climate
; seasonal variation
; surface temperature
; vulnerability
; Amazon Basin
英文摘要: Future climate scenarios point to an increase in the frequency of extreme droughts events, even in humid biomes. Throughout the 21st century, large areas of the Amazon basin experienced the most severe droughts ever recorded with special emphasis on the 2005 and 2010 events due to their severity and extent. Currently, there is an increased demand to understand the geographic extent and seasonal variability of climate variables during drought events, especially with respect to the social and environmental impacts. In this study, we aim to compare the observed climate conditions during the drought episodes of 2005, 2010 and 2015. We perform a detailed assessment of the measured precipitation, land-surface temperature (LST) and solar radiation anomalies. We provide evidence that the anomalous precipitation deficit during 2015 exceeded the amplitude and spatial extent of the previous events, affecting more than 80% of Amazon basin, particularly the eastern portion. The pronounced lack of rainfall availability during late spring and early summer, coincident with radiation and temperature surpluses during these years are significant and notable. Changed meteorological spatial patterns were observed, with precipitation and radiation being the most prominent parameters in 2005, whereas precipitation and LST were most relevant in 2010. Understanding the behaviour and interactions of pertinent meteorological variables, as well as identifying similar or divergent patterns over the region during distinct extreme events, is essential for the improvement of our knowledge of Amazon forest vulnerability to climate fluctuation changes. © 2017 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117080
Appears in Collections: 气候减缓与适应
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作者单位: Departamento de Meteorologia, Instituto de Geociências, Universidade Federal do Rio de Janeiro, Brazil; Instituto Dom Luiz, Faculdade de Ciências da Universidade de Lisboa, Portugal; Instituto Português do Mar e da Atmosfera, Lisbon, Portugal; Centro de Previsão de Tempo e Estudos Climáticos, Instituto Nacional de Pesquisas Espaciais, São José dos Campos, Brazil
Recommended Citation:
Panisset J.S.,Libonati R.,Gouveia C.M.P.,et al. Contrasting patterns of the extreme drought episodes of 2005, 2010 and 2015 in the Amazon Basin[J]. International Journal of Climatology,2018-01-01,38(2)