Jonathan Willian Zangeski Novais

Temporal Patterns of Energy Balance for a Brazilian Tropical Savanna under Contrasting Seasonal Conditions

The savanna of Central Brazil (locally known as cerrado) has a long history of land cover change due to human activity. These changes have led to the degradation of cerrado forests and woodlands, leading to the expansion of grass-dominated cerrados and pastures. Thus, the aim of this study was to evaluate the temporal variation in energy flux in areas of degraded, grass-dominated cerrado (locally known as campo sujo) in Central Brazil. The amount of partitioned into H declined as monthly rainfall increased and reached a level of approximately 30% during the wet season, while the amount of partitioned into increased as monthly rainfall increased and reached a level of approximately 60% during the wet season. As a result, H was significantly higher than during the dry season, resulting in a Bowen ratio (β = H/) of 3-5, while Le was higher than H during the wet season, resulting in a . These data indicate that the energy partitioning of grass-dominated cerrado is relatively more sensitive to water availability than cerrado woodlands and forests, and have important implications for local and regional energy balance.

Geothermal Dynamics in Vochysia Divergens Forest in a Brazilian Wetland

Research involving the thermal soil dynamics of wetland areas has not yet been explored in a way that promotes a deeper understanding of the dynamics of this region. This makes it necessary for further studies to contribute to the understanding of this biome. In the present work, we studied the thermal dynamics of the soil contrasting seasonal conditions in the Vochysia Divergens Forest. The Fourier equation was used to analyze the influence of the thermal conductivity and thermal gradient on the soil heat flux. We determined how variable water content causes the system to behave differently in the four seasons, observing seasonality in soil when completely dry and when completely flooded.

Thermo-hygrometric modeling using ENVI-met® software to an urban park in Cuiabá – Brazil

Climate in urban areas, not under the effect of vegetation, was investigated and its benefits were observed in both vegetated and un-vegetated areas. The objective of this research was to model the air temperature and relative humidity using the Software ENVI-met® in an urban park in Cuiaba. The development of the methodology of this work involved two phases: survey (microclimate) and simulation. The microclimate survey was conducted through a mobile transect, for the periods of January 2014 to March 2014 (hot/wet) and July 2015 to September 2015 (hot/dry). The simulation was developed using ENVI-met® software during these two periods of the year. Generally maximizing the parameters, the ENVI-met® model for microclimate varied in the presence of too much vegetation. Simulations showed an increase in temperature and relative humidity in areas not surrounding the Mae Bonifacia City Park, and this was particularly apparent in areas laid with asphalt and concrete. Vegetated parks play an important role in how hot climate thermoregulatory agents behave in the city of Cuiaba and the surrounding region.

Análise da Percepção de Estudantes e Funcionários Quanto a Inclusão e o Desenvolvimento Cognitivo de Alunos da Terceira Idade no Ambiente Universitário

E comum encontrar pessoas da terceira idade no ambiente universitario e retornando ao mercado de trabalho. Visando entender como e a percepcao dos outros alunos em relacao aos idosos, foram entrevistadas 30 pessoas entre homens e mulheres na faixa etaria de 18 a 60 anos na Universidade de Cuiaba - Unic, Campus Barao, a fim de identificar os fatores de manifestacoes de aprendizagem do aluno universitario na terceira idade. Foram aplicados questionarios referentes aos fatores: emocional/social, cognitivo e motor, com escalas de intensidade de zero a dez, sendo avaliadas as respostas de zero a tres como nao, tres a sete como talvez e sete a dez como sim. A analise das opinioes foi concebida a partir da percepcao, experiencia e vivencia em sala de aula entre os entrevistados com os alunos da terceira idade. Houve afinidades entre os entrevistados nas respostas do fator social e cognitivo e divergencia quanto a insercao do idoso no mercado de trabalho depois de formado e na habilidade com o uso da informatica, no fator motor houve concordância a respeito da disposicao do idoso em executar atividades, que exijam condicionamento fisico em mobilidade dentro do centro academico e avaliacao dos sentidos da audicao e visao. O trabalho atingiu seu objetivo identificando os fatores referentes as manifestacoes de aprendizagem do aluno universitario na terceira idade, utilizando como parâmetro a percepcao dos entrevistados a respeito do idoso.

Albedo do Solo abaixo do Dossel em Área de Vochysia divergens Pohl no Norte do Pantanal

This paper analyzed the soil albedo (αsoil) below the canopy considering two steps in the hydrological cycle, the first when the soil was flooded and the second when the soil was covered with litterpool in a flooded area of Vochysia divergens Pohl in the Pantanal, Brazil. The values of αsoil were calculated by the ratio between the reflected solar radiation and incident solar radiation measured below the canopy through weather stations. The flooding occurred during February-June with posterior gradual increase in the litterpool. The αsoil varied seasonally with higher values increasing approximately 42% of the soil albedo during the dry period compared to the inundation period. Cross-correlation analysis between αsoil and accumulated rainfall, soil moisture and litterpool may partly explain the direct and/or indirect influence on the αsoil. The rainfall did not influence directly on the αsoil of the current month, while the soil moisture influenced directly on the αsoil in the current month and the following months, the litterpool and αsoil were positively correlated in the current month indicating direct influence on the αsoil.

Analysis of thermal conductivity in a seasonal flooded forest in the northern Pantanal

Research involving the flux of energy in the soil has been intensified in order to increase the understanding of the geophysical behavior of the Pantanal-Brazil. In present study was examined the seasonal variation of the thermal soil conductivity in the Pantanal for the study of energy flow in the soil to Pantanal region. The average values obtained by the Fourier equation showed that the soil thermal conductivity in the wet and dry seasons was 8.69 W.m-1.oC-1 and 6.65 W.m-1.oC-1 respectively. The seasonal variation of the thermal conductivity of the soil was 30.68% higher in the wet season than in the dry season due to soil moisture in the wet season. It was also noted that the seasonal variation of temperature in the soil layer was higher in the wet season than in the dry season due to a lower incidence of solar radiation in this season.