Buscar
Itens para a visualização no momento 11-20 of 56
Estimativa da probabilidade de ocorrência da precipitação, a partir de métodos estatísticos não paramétricos aplicados a simulações numéricas de um sistema de previsão por conjunto
(Universidade Federal de Santa Maria, 2016-07-15)
In this paper was used kernel density estimation (KDE), a nonparametric method to estimate
the probability density function of a random variable, to obtain probabilistic precipitation
forecasts from an ensemble prediction ...
Estimativa da partição de energia na superfície a partir de séries meteorológicas de temperatura e umidade específica do ar
(Universidade Federal de Santa Maria, 2015-07-03)
The developed method is proposed with the aim of estimating the energy partition on the
surface, according to the Bowen ratio method, and the height of convective boundary layer
on the monthly scale. The basic hypothesis ...
Implementação de um modelo de coluna simples para a camada limite estável utilizando diferentes formulações de turbulência
(Universidade Federal de Santa Maria, 2012-10-01)
In this work a single column model is implemented, aiming primarily to simulate the Stable
Boundary Layer (SBL). The model is composed of prognostic equations for the potential
temperature, specific humidity and the wind ...
Variação sazonal da acumulação e fluxo noturnos de escalares em uma pastagem na região Amazônica
(Universidade Federal de Santa Maria, 2010-10-01)
Carbon dioxide and Radon nocturnal vertical accumulations over a pasture site at the Amazon region are investigated. The site is characterized by a strong thermal stability along the night, which is responsible for suppressing ...
Variabilidade na produção primária líquida em modelos de superfície para sítios sul-americanos
(Universidade Federal de Santa Maria, 2013-03-14)
This study analyzes simulations of Net Primary Production (NPP) from 15 different landsurface
models (LSMs) and biomass pools from 6 different LSMs using meteorological
conditions measured at 8 sites from Large-Scale ...
Validação do modelo Agro-ibis para um sítio experimental de soja no Rio Grande do Sul
(Universidade Federal de Santa Maria, 2011-03-24)
The Agro-IBIS model is validated for a soybean experimental site in the state of Rio Grande
do Sul. This experiment is conducted in order to evaluate the impact of different soil
management systems on different areas of ...
Investigação do modo sul de precipitação no clima presente e futuro no Rio Grande do Sul
(Universidade Federal de Santa Maria, 2010-03-11)
This paper presents a mode of variability of precipitation that influence in southern Brazil, called South Mode. We tried to show that the occurrence of events Mode south of precipitation are related to the occurrence of ...
Sensibilidade do fechamento do balanço de energia a métodos de processamento de dados de fluxos superficiais sobre o bioma Pampa
(Universidade Federal de Santa Maria, 2016-01-25)
This work took place a procedure for processing the data fluxes measured by a system eddy covariance in an experimental site with representative vegetation of the Pampa biome in conjunction with measures of a meteorological ...
Variações climáticas na precipitação do Rio Grande do Sul no clima presente e futuro
(Universidade Federal de Santa Maria, 2011-03-17)
This study presents the analysis of precipitation trends for the Southern region of Brazil, for three present climate periods with a comparison between precipitation
data and data of the regional Model RegCM3 and an ...
Condições atmosféricas conducentes à ocorrência de tempestades convectivas severas na América do Sul
(Universidade Federal de Santa Maria, 2011-02-02)
An investigation of the atmospheric environments prone to severe convective weather is conducted for the subtropics of South America, east of the Andes Mountain Range. Upper air soundings valid at 00Z and 12Z for six ...