000 02522nam 22003373 4500
001 31469
090 _a31469
100 _a20241030d2024 u||y0engy50 ba
101 _aeng
102 _aCH
200 _aVegetation warming and greenness decline across Amazonia during the extreme drought of 2023
_fJuan Carlos Jiménez, Vitor Miranda, Isabel Trigo...[et al.]
_gacademic editor William Garreth ; Portuguese Institute of Sea and Atmosphere ...[et al.]
210 _aBasel
_c[s.n.]
_d2024
215 _a[14] p.
_cil.
_d30 cm
300 _aSeparata de : "Remote Sensing", 16.2519, 2024
321 _aIn 2023, most parts of the world experienced exceptional heat. In particular, anomalous warm temperatures and heatwave events were evidenced across South America during the second half of the year. The situation was particularly critical in the Amazon region in terms of not only hydrometeorological drought but also ecological and socioeconomic impacts. In this study, remotesensing data collected from the Moderate Resolution Imaging Spectroradiometer (MODIS) were used to observe the changes in temperature and vegetation across Amazonia during the exceptional drought of 2023. This analysis was based on anomalies in the land surface temperature (LST) and vegetation indices: the enhanced vegetation index (EVI) and the normalized difference vegetation index (NDVI). The amplitude of the LST (AMP-LST), an indicator of the energy partitioning between the latent and sensible heat flux, and fire counts were also considered. The results show widespread and extreme warming across Amazonia during the austral spring in 2023, accompanied by a decline in vegetation greenness, water stress conditions across northern Amazonia, and an enhanced fire occurrence across central and northern Amazonia.
606 _aClima
_xTemperatura
_xSeca extrema
_yAustralia
_920038
606 _aVegetação
_93371
606 _aImpato ambiental
_920039
606 _aAlterações climáticas
_920040
700 _aJiménez
_bJuan Carlos
_920041
701 _4070
_aMiranda
_bVitor
_920042
701 _4070
_aTrigo
_bIsabel
_920043
701 _4070
_aLibonati
_bRenata
_920044
701 _4070
_aAlbuquerque
_bRonaldo
_920045
701 _4070
_aPeres
_bLeonardo F.
_920046
701 _4070
_aEspinoza
_bJhan-Carlo
_920047
701 _4070
_aMarengo
_bJosé António
_920048
712 _aPortuguese Institute of Sea and Atmosphere (IPMA)
_94780
801 _gISBD
856 _uhttps://www.mdpi.com/2072-4292/16/14/2519
_zdoi.org/10.3390/rs1614259
942 _n0