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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
04/12/2023 |
Data da última atualização: |
04/12/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
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. |
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. |
Título: |
A case study of a gravity wave induced by Amazon forest orography and low level jet generation. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Agricultural and Forest Meteorology, v. 307, Article 108457, 2021. |
DOI: |
https://doi.org/10.1016/j.agrformet.2021.108457 |
Idioma: |
Inglês |
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 |
Palavras-Chave: |
Coherent structures; Gravity waves; Low-level jet wave-turbulence interaction; Stable boundary layer. |
Thesagro: |
Floresta Tropical. |
Categoria do assunto: |
-- |
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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Embrapa Amazônia Oriental (CPATU) |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
10/01/2008 |
Data da última atualização: |
25/05/2018 |
Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
Autoria: |
VIANA, M. C. M.; QUEIROZ, C. G. S.; LEMOS FILHO, J. P. de; ANDRADE, C. de L. T. de; FREIRE, F. M.; PURCINO, H. M. A.; RESENDE, G. A. |
Afiliação: |
Maria Celuta Machado Viana, Epamig/CTCO; Cristina Generosa Senna Queiroz, ICB/UFMG; José Pires de Lemos Filho, ICB/UFMG; CAMILO DE LELIS TEIXEIRA DE ANDRADE, CNPMS; Francisco Morel Freire, Epamig/CTCO; Hortência Maria Abranches Purcino, Epamig/CTCO; Geraldo Antônio Resende, Epamig/CTCO. |
Título: |
Acúmulo de fitomassa e índice de área foliar de gramíneas forrageiras em sistema irrigado e de sequeiro. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 44., 2007, Jaboticabal. O avanço científico e tecnológico na produção animal: anais. Jaboticabal: Sociedade Brasileira de Zootecnia: UNESP, Faculdade de Ciências Agrárias e Veterinárias, 2007. |
Descrição Física: |
1 CD-ROM. |
Idioma: |
Português |
Thesagro: |
Gramínea forrageira. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/36839/1/Acumulo-fitomassa.pdf
|
Marc: |
LEADER 00845nam a2200193 a 4500 001 1490836 005 2018-05-25 008 2007 bl uuuu u00u1 u #d 100 1 $aVIANA, M. C. M. 245 $aAcúmulo de fitomassa e índice de área foliar de gramíneas forrageiras em sistema irrigado e de sequeiro.$h[electronic resource] 260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 44., 2007, Jaboticabal. O avanço científico e tecnológico na produção animal: anais. Jaboticabal: Sociedade Brasileira de Zootecnia: UNESP, Faculdade de Ciências Agrárias e Veterinárias$c2007 300 $c1 CD-ROM. 650 $aGramínea forrageira 700 1 $aQUEIROZ, C. G. S. 700 1 $aLEMOS FILHO, J. P. de 700 1 $aANDRADE, C. de L. T. de 700 1 $aFREIRE, F. M. 700 1 $aPURCINO, H. M. A. 700 1 $aRESENDE, G. A.
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