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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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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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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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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Tipo/Formato |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
01/10/2013 |
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Data da última atualização: |
01/10/2013 |
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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: |
RODRIGUES, A. G.; PING, L. Y.; MARCATO, P. D.; ALVES, O. L.; SILVA, M. C. P.; RUIZ, R. C.; MELO, I. S. de; TASIC, L.; SOUZA, A. O. de. |
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Afiliação: |
ALEXANDRE G. RODRIGUES, INSTITUTO BUTANTAN; LIU YU PING, INSTITUTO BUTANTAN; PRYSCILA D. MARCATO, IQ-UNICAMP; OSWALDO LUIZ ALVES, IQ-UNICAMP; MARIA C. P. SILVA, ICB-USP; RITA C. RUIZ, INSTITUTO BUTANTAN; ITAMAR SOARES DE MELO, CNPMA; LJUBICA TASIC, IQ-UNICAMP; ANA O. DE SOUZA, INSTITUTO BUTANTAN. |
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Título: |
Biogenic antimicrobial silver nanoparticles produced by fungi. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Applied Microbiology and Biotechnology, New York, v. 97, p. 775-782, 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
Aspergillus tubingensis and Bionectria ochroleuca showed excellent extracellular ability to synthesize silver nanoparticles (Ag NP), spherical in shape and 35± 10 nm in size. Ag NP were characterized by transmission electron microscopy, X-ray diffraction analysis, and photon correlation spectroscopy for particle size and zeta potential. Proteins present in the fungal filtrate and in Ag NP dispersion were analyzed by electrophoresis (sodium dodecyl sulfate polyacrylamide gel electrophoresis). Ag NP showed pronounced antifungal activity against Candida sp, frequently occurring in hospital infections, with minimal inhibitory concentration in the range of 0.11-1.75 ?g/mL. Regarding antibacterial activity, nanoparticles produced by A. tubingensis were more effective compared to the other fungus, inhibiting 98.0 % of Pseudomonas. aeruginosa growth at 0.28 ?g/mL. A. tubingensis synthesized Ag NP with surprisingly high and positive surface potential, differing greatly from all known fungi. These data open the possibility of obtaining biogenic Ag NP with positive surface potential and new applications. |
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Palavras-Chave: |
Ação antimicrobiana; Antimicrobial activity; Bionectria; Bionectria ochroleuca; Candida sp; Mangrove; Silver nanoparticles. |
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Thesagro: |
Fungo; Mangue. |
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Thesaurus NAL: |
Antifungal agents; Aspergillus tubingensis; Fungi. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02106naa a2200361 a 4500
001 1967542
005 2013-10-01
008 2013 bl uuuu u00u1 u #d
100 1 $aRODRIGUES, A. G.
245 $aBiogenic antimicrobial silver nanoparticles produced by fungi.$h[electronic resource]
260 $c2013
520 $aAspergillus tubingensis and Bionectria ochroleuca showed excellent extracellular ability to synthesize silver nanoparticles (Ag NP), spherical in shape and 35± 10 nm in size. Ag NP were characterized by transmission electron microscopy, X-ray diffraction analysis, and photon correlation spectroscopy for particle size and zeta potential. Proteins present in the fungal filtrate and in Ag NP dispersion were analyzed by electrophoresis (sodium dodecyl sulfate polyacrylamide gel electrophoresis). Ag NP showed pronounced antifungal activity against Candida sp, frequently occurring in hospital infections, with minimal inhibitory concentration in the range of 0.11-1.75 ?g/mL. Regarding antibacterial activity, nanoparticles produced by A. tubingensis were more effective compared to the other fungus, inhibiting 98.0 % of Pseudomonas. aeruginosa growth at 0.28 ?g/mL. A. tubingensis synthesized Ag NP with surprisingly high and positive surface potential, differing greatly from all known fungi. These data open the possibility of obtaining biogenic Ag NP with positive surface potential and new applications.
650 $aAntifungal agents
650 $aAspergillus tubingensis
650 $aFungi
650 $aFungo
650 $aMangue
653 $aAção antimicrobiana
653 $aAntimicrobial activity
653 $aBionectria
653 $aBionectria ochroleuca
653 $aCandida sp
653 $aMangrove
653 $aSilver nanoparticles
700 1 $aPING, L. Y.
700 1 $aMARCATO, P. D.
700 1 $aALVES, O. L.
700 1 $aSILVA, M. C. P.
700 1 $aRUIZ, R. C.
700 1 $aMELO, I. S. de
700 1 $aTASIC, L.
700 1 $aSOUZA, A. O. de
773 $tApplied Microbiology and Biotechnology, New York$gv. 97, p. 775-782, 2013.
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