@Article{DiasJúniorSáMaSaMaMa:2017:TuReSt,
author = "Dias J{\'u}nior, Cl{\'e}o Quaresma and S{\'a}, Leonardo Deane
de Abreu and Marques Filho, Edson P. and Santana, Raoni A. and
Mauder, Matthias and Manzi, Ant{\^o}nio Ocimar",
affiliation = "Instituto Federal de Educa{\c{c}}{\~a}o, Ci{\^e}ncia e
Tecnologia do Par{\'a} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Universidade Federal da Bahia (UFBA)} and
{Instituto Nacional de Pesquisas da Amaz{\^o}nia (INPA)} and
{Karlsruhe Institute of Technology} and {Instituto Nacional de
Pesquisas Espaciais (INPE)}",
title = "Turbulence regimes in the stable boundary layer above and within
the Amazon forest",
journal = "Agricultural and Forest Meteorology",
year = "2017",
volume = "233",
pages = "122--132",
month = "Feb.",
keywords = "Amazon forest, Coherent structures, Inflection-point height,
Nocturnal boundary layer, Turbulent regime.",
abstract = "The structure of atmospheric turbulence is analyzed based on the
existence of three different nighttime turbulent regimes observed
in the Amazon forest, classified according to Sun's criteria:
regime 1: weak turbulence, low wind speed; regime 2: strong
turbulence, with high wind speed, and regime 3: intermittent
turbulence events. Next, we have investigated some of the main
statistical characteristics of turbulent regimes. In situations
with strong winds and high values of turbulent kinetic energy (4%
of cases) sensible heat fluxes are about 40 times higher than the
ones under light winds and low turbulent kinetic energy values
(95% of cases). Furthermore, the inflection point height in the
wind profile and shear length scale L-h = u(h)/(du/dz) (where u(h)
is the mean wind velocity at canopy top) increases with the regime
2, with the occurrence of strong mixing in the atmospheric
boundary layer. In addition the coherent structure time scale in
the regime 2 is greater than regime I. Regime 3 is essentially
nonstationary.",
doi = "10.1016/j.agrformet,2016.11.001",
url = "http://dx.doi.org/10.1016/j.agrformet,2016.11.001",
issn = "0168-1923",
language = "en",
targetfile = "dias_turbulence.pdf",
urlaccessdate = "27 abr. 2024"
}