Determination of region of influence obtained by aircraft vertical profiles using the density of trajectories from the HYSPLIT model
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2020
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Aircraft atmospheric profiling is a valuable technique for determining greenhouse gas
fluxes at regional scales (104–106 km2). Here, we describe a new, simple method for estimating the
surface influence of air samples that uses backward trajectories based on the Lagrangian model
Hybrid Single-Particle Lagrangian Integrated Trajectory Model (HYSPLIT). We determined “regions
of influence” on a quarterly basis between 2010 and 2018 for four aircraft vertical profile sites: SAN
and ALF in the eastern Amazon, and RBA and TAB or TEF in the western Amazon. We evaluated
regions of influence in terms of their relative sensitivity to areas inside and outside the Amazon and
their total area inside the Amazon. Regions of influence varied by quarter and less so by year. In the
first and fourth quarters, the contribution of the region of influence inside the Amazon was 83–93%
for all sites, while in the second and third quarters, it was 57–75%. The interquarter differences are
more evident in the eastern than in the western Amazon. Our analysis indicates that atmospheric
profiles from the western sites are sensitive to 42–52.2% of the Amazon. In contrast, eastern Amazon
sites are sensitive to only 10.9–25.3%. These results may help to spatially resolve the response of
greenhouse gas emissions to climate variability over Amazon.
Como referenciar
CASSOL, HENRIQUE L.G.; DOMINGUES, LUCAS G.; SANCHEZ, ALBER H.; BASSO, LUANA S.; MARANI, LUCIANO; TEJADA, GRACIELA; ARAI, EGIDIO; CORREIA, CAIO; ALDEN, CAROLINE B.; MILLER, JOHN B.; GLOOR, MANUEL; ANDERSON, LIANA O.; ARAGÃO, LUIZ E.O.C.; GATTI, LUCIANA V. Determination of region of influence obtained by aircraft vertical profiles using the density of trajectories from the HYSPLIT model. Atmosphere, v. 11, n. 10, p. 1-20, 2020. DOI: 10.3390/atmos11101073. Disponível em: http://200.136.52.105/handle/123456789/31593. Acesso em: 13 Mar 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.