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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
04/12/2023 |
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Data da última atualização: |
04/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
CORRÊA, P. B.; DIAS-JÚNIOR, C. Q.; CAVA, D.; SÖRGEL, M.; BOTÍA, S.; ACEVEDO, O.; OLIVEIRA, P. E. S.; MANZI, A. O.; MACHADO, L. A. T.; MARTINS, H. dos S.; TSOKANKUNKU, A.; ARAUJO, A. C. de; LAVRIC, J. V.; WALTER, D.; MORTARINI, L. |
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Afiliação: |
POLARI B. CORRÊA, INPA; CLÉO Q. DIAS-JÚNIOR, INPA / IFPA; DANIELA CAVA, Institute of Atmospheric Sciences and Climate, Consiglio Nazionale delle Ricerche; MATTHIAS SÖRGEL, Max Planck Institute for Chemistry; SANTIAGO BOTÍA, Max Planck Institute for Biogeochemistry; OTÁVIO ACEVEDO, UFSM; PABLO E. S. OLIVEIRA, Universidade Federal do Rio Grande do Norte; ANTÔNIO OCIMAR MANZI, INPE; LUIZ AUGUSTO TOLEDO MACHADO, Max Planck Institute for Chemistry / INPE; HARDINEY DOS SANTOS MARTINS, IFPA; ANYWHERE TSOKANKUNKU, Max Planck Institute for Chemistry; ALESSANDRO CARIOCA DE ARAUJO, CPATU; JOST V. LAVRIC, Max Planck Institute for Biogeochemistry; DAVID WALTER, Max Planck Institute for Chemistry; LUCA MORTARINI, Institute of Atmospheric Sciences and Climate, Consiglio Nazionale delle Ricerche (ISAC-CNR) / UFSM. |
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Título: |
A case study of a gravity wave induced by Amazon forest orography and low level jet generation. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Agricultural and Forest Meteorology, v. 307, Article 108457, 2021. |
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DOI: |
https://doi.org/10.1016/j.agrformet.2021.108457 |
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Idioma: |
Inglês |
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Conteúdo: |
We investigated the role of turbulent coherent structures (CS), gravity waves (GW) and low-level jet (LLJ) propagation in the flow dynamics of the Nocturnal Boundary Layer (NBL) within and above a forest canopy at the Amazon Tall Tower Observatory (ATTO), in Central Amazon. Seven levels of wind velocity and temperature measurements allowed the study of the flow structure below and above the surface layer. We analyzed one dynamically rich night in 2015, which includes three distinct periods. In the first one, the NBL is characterized by CS generated at the canopy top. In the second period, the change in wind direction triggers the onset of a orographic GW above the roughness sublayer. The wave, suppressing the propagation of CS, strongly influences the boundary layer structure, both above and below the canopy. In the third period, low turbulence intensity at the canopy top enables the development of a LLJ. As the jet shear layer propagates upward, it disrupts the wave oscillations, while LLJ dominates the flow dynamics. The wavelet analyses identified i) turbulent and non-turbulent structures with different length and time-scales; ii) coupling of the flow at different levels and the vertical propagation of turbulent and wave motions; and iii) the ability of turbulent and low frequency processes associated with the orographic GW to penetrate within the canopy. Further, scalar measurements of methane, carbon monoxide and carbon dioxide identified the LLJ nose as upward limit for how far scalars can be transported. MenosWe investigated the role of turbulent coherent structures (CS), gravity waves (GW) and low-level jet (LLJ) propagation in the flow dynamics of the Nocturnal Boundary Layer (NBL) within and above a forest canopy at the Amazon Tall Tower Observatory (ATTO), in Central Amazon. Seven levels of wind velocity and temperature measurements allowed the study of the flow structure below and above the surface layer. We analyzed one dynamically rich night in 2015, which includes three distinct periods. In the first one, the NBL is characterized by CS generated at the canopy top. In the second period, the change in wind direction triggers the onset of a orographic GW above the roughness sublayer. The wave, suppressing the propagation of CS, strongly influences the boundary layer structure, both above and below the canopy. In the third period, low turbulence intensity at the canopy top enables the development of a LLJ. As the jet shear layer propagates upward, it disrupts the wave oscillations, while LLJ dominates the flow dynamics. The wavelet analyses identified i) turbulent and non-turbulent structures with different length and time-scales; ii) coupling of the flow at different levels and the vertical propagation of turbulent and wave motions; and iii) the ability of turbulent and low frequency processes associated with the orographic GW to penetrate within the canopy. Further, scalar measurements of methane, carbon monoxide and carbon dioxide identified the LLJ nose as upward limit fo... Mostrar Tudo |
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Palavras-Chave: |
Coherent structures; Gravity waves; Low-level jet wave-turbulence interaction; Stable boundary layer. |
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Thesagro: |
Floresta Tropical. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02639naa a2200361 a 4500
001 2159137
005 2023-12-04
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.agrformet.2021.108457$2DOI
100 1 $aCORRÊA, P. B.
245 $aA case study of a gravity wave induced by Amazon forest orography and low level jet generation.$h[electronic resource]
260 $c2021
520 $aWe investigated the role of turbulent coherent structures (CS), gravity waves (GW) and low-level jet (LLJ) propagation in the flow dynamics of the Nocturnal Boundary Layer (NBL) within and above a forest canopy at the Amazon Tall Tower Observatory (ATTO), in Central Amazon. Seven levels of wind velocity and temperature measurements allowed the study of the flow structure below and above the surface layer. We analyzed one dynamically rich night in 2015, which includes three distinct periods. In the first one, the NBL is characterized by CS generated at the canopy top. In the second period, the change in wind direction triggers the onset of a orographic GW above the roughness sublayer. The wave, suppressing the propagation of CS, strongly influences the boundary layer structure, both above and below the canopy. In the third period, low turbulence intensity at the canopy top enables the development of a LLJ. As the jet shear layer propagates upward, it disrupts the wave oscillations, while LLJ dominates the flow dynamics. The wavelet analyses identified i) turbulent and non-turbulent structures with different length and time-scales; ii) coupling of the flow at different levels and the vertical propagation of turbulent and wave motions; and iii) the ability of turbulent and low frequency processes associated with the orographic GW to penetrate within the canopy. Further, scalar measurements of methane, carbon monoxide and carbon dioxide identified the LLJ nose as upward limit for how far scalars can be transported.
650 $aFloresta Tropical
653 $aCoherent structures
653 $aGravity waves
653 $aLow-level jet wave-turbulence interaction
653 $aStable boundary layer
700 1 $aDIAS-JÚNIOR, C. Q.
700 1 $aCAVA, D.
700 1 $aSÖRGEL, M.
700 1 $aBOTÍA, S.
700 1 $aACEVEDO, O.
700 1 $aOLIVEIRA, P. E. S.
700 1 $aMANZI, A. O.
700 1 $aMACHADO, L. A. T.
700 1 $aMARTINS, H. dos S.
700 1 $aTSOKANKUNKU, A.
700 1 $aARAUJO, A. C. de
700 1 $aLAVRIC, J. V.
700 1 $aWALTER, D.
700 1 $aMORTARINI, L.
773 $tAgricultural and Forest Meteorology$gv. 307, Article 108457, 2021.
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