Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Leonardo D. A. Sá"'
Autor:
José Henrique Cattanio, Cléo Q. Dias-Júnior, Leonardo D. A. Sá, Julia Clarinda Paiva Cohen, Paulo Afonso Fischer Kuhn, Adayana M.Q. Melo
Publikováno v:
Atmospheric Environment. 206:132-143
The main objective of this work is to better understand the increase of ozone ( O 3 ) in the surface by the influence of density currents formed by downdrafts from mesoscale convective systems, using as tool the JULES-CCATT-BRAMS model. Initially, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b17e73ea5d1a2662080ec19518c8f9e
https://doi.org/10.1016/j.atmosenv.2019.02.018
https://doi.org/10.1016/j.atmosenv.2019.02.018
Autor:
Marcelo Zeri, Leonardo D A Sá, Antônio O Manzi, Alessandro C Araújo, Renata G Aguiar, Celso von Randow, Gilvan Sampaio, Fernando L Cardoso, Carlos A Nobre
Publikováno v:
PLoS ONE, Vol 9, Iss 2, p e88130 (2014)
The carbon and water cycles for a southwestern Amazonian forest site were investigated using the longest time series of fluxes of CO2 and water vapor ever reported for this site. The period from 2004 to 2010 included two severe droughts (2005 and 201
Externí odkaz:
https://doaj.org/article/061d3c17579643c391181ecc5e9064ba
Autor:
Matthias Mauder, Cléo Q. Dias-Júnior, Leonardo D. A. Sá, Antonio O. Manzi, Edson P. Marques Filho, Raoni Aquino Silva de Santana
Publikováno v:
Agricultural and Forest Meteorology. 233:122-132
The structure of atmospheric turbulence is analyzed based on the existence of three different night-time turbulent regimes observed in the Amazon forest, classified according to Sun's criteria: regime 1: weak turbulence, low wind speed; regime 2: str
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe1883e481b42e6ec2699385d50a1490
https://doi.org/10.1016/j.agrformet.2016.11.001
https://doi.org/10.1016/j.agrformet.2016.11.001
Publikováno v:
Meteorological Applications. 23:158-164
The present study considers the mean wind velocity profiles measured from a 60 m high tower in the Rebio-Jaru forest (10 ° 04.7 ′ S, 61 ° 52.0 ′ W), located in the Brazilian northwestern state of Rondonia. The data were collected during the wet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa3e66c9e83560d388be41f3e23efbbb
https://doi.org/10.1002/met.1543
https://doi.org/10.1002/met.1543
Publikováno v:
Journal of Wind Engineering and Industrial Aerodynamics. 147:143-153
The occurrence of coherent structures (CS) above the Amazon forest is analyzed. To perform this study, a large eddy simulation (LES) model is used, which has been improved by the introduction of a drag force which is representative of a typical Amazo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::806e3dd04ae431317c9aca8506c11ef9
https://doi.org/10.1016/j.jweia.2015.10.003
https://doi.org/10.1016/j.jweia.2015.10.003
Publikováno v:
Ciência e Natura. 42:e12
Some physical aspects related to the occurrence of nocturnal instability-inducing intense peaks in wind speed (here abbreviated by PV.) in the tropical atmosphere above forest were investigated. Such phenomena cause strong variations in turbulent sig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::214847b6e3954ae3b2b83c94915b08d0
https://doi.org/10.5902/2179460x45354
https://doi.org/10.5902/2179460x45354
Publikováno v:
Ciência e Natura. 42:e24
The most turbulent vortices that populate the forest-atmosphere interface have canopy height length scales. These vortices are mainly responsible for turbulent exchanges between inside and above canopy region. Thus, we used the vertical wind profiles
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::703b5b3f69ac9b32377dbf4021ca0bb4
https://doi.org/10.5902/2179460x53225
https://doi.org/10.5902/2179460x53225
Publikováno v:
Atmospheric Science Letters. 16:318-323
The Student's t-test was used to statistically prove the existence of a significant difference between mean values of several meteorological variables for the active and inactive phases of the Madden–Julian Oscillation (MJO) in the Eastern Amazon.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc111e9fddd77f612fd199d76ef55eb5
https://doi.org/10.1002/asl2.560
https://doi.org/10.1002/asl2.560
Publikováno v:
Atmospheric Science Letters. 16:228-233
The contribution of coherent structures (CSs) to daytime buoyancy heat flux was calculated for three forest sites in the Amazon region and a wetland site. Ejections and sweeps had similar contributions to fluxes at all sites, and when decomposing thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::124744d67fe170668756c90f95c53cab
https://doi.org/10.1002/asl2.544
https://doi.org/10.1002/asl2.544
Autor:
Antonio O. Manzi, Matthias Sörgel, Leonardo D. A. Sá, Alessandro Araújo, Einara Zahn, Nelson Luís Dias, Ivonne Trebs, Stefan Wolff
Publikováno v:
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice)
Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics, Vol 16, Pp 11349-11366 (2016)
Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics, Vol 16, Pp 11349-11366 (2016)
An important current problem in micrometeorology is the characterization of turbulence in the roughness sublayer (RSL), where most of the measurements above tall forests are made. There, scalar turbulent fluctuations display significant departures fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1c89b0f88ce7c8611362da7f1f5993e
https://doi.org/10.5194/acp-2015-1043
https://doi.org/10.5194/acp-2015-1043
