&lt;b&gt;Energy balance in the Cerrado of Ecological Station of Assis – Assis, São Paulo State, Brazil

Edson Xavier Fernandes,Jonas Teixeira Nery

doi:10.4025/actascitechnol.v37i4.27786

<b>Energy balance in the Cerrado of Ecological Station of Assis – Assis, São Paulo State, Brazil

Edson Xavier Fernandes, Jonas Teixeira Nery

Open Access

https://doi.org/10.4025/actascitechnol.v37i4.27786

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Abstract

This article presents the results of the net radiation partitioning (Rn) between latent heat (LE) and sensible heat fluxes (H) and its relationship with water availability (rain) in an area with Cerrado vegetation in the state Sao Paulo, Brazil. Heat fluxes follow the energy standard available in the environment, with higher values during the rainy season and lower values in the dry season. However, in the dry season, increased sensible heat flux over the latent heat flux was observed, which could be due to the lower water availability in the environment. Similar studies that have examined the dynamics of natural systems can contribute to the development of public policies for preservation and conservation of natural resources in a context in which the man-nature relationship is marked by imbalances in view of the form of use of natural resources based on predatory model adopted by society over the past 200 years.

Highlights

As two important components of the climate system, atmosphere and vegetation are in constant interaction, especially due to exchanges of energy, mass and ‘momentum’ held in their interface
Technology et al (2003), the way energy is partitioned between latent heat flux and sensible heat flux changes surface fluxes and the climate
Wilson et al (2002) reported that partition between latent heat fluxes linked to the evapotranspiration process and sensible heat flux is critical to determine the water cycle, boundary layer development, weather and climate

Summary

Introduction

As two important components of the climate system, atmosphere and vegetation are in constant interaction, especially due to exchanges of energy, mass and ‘momentum’ held in their interface. The understanding of energy exchanges between surface and atmosphere assists in the characterization of the microclimate in relation to variations in the climate of a region and in the identification of the effects of human activities or natural factors on different environmental issues in the region (BIUDES et al, 2009). Technology et al (2003), the way energy is partitioned between latent heat flux and sensible heat flux changes surface fluxes and the climate. Wilson et al (2002) reported that partition between latent heat fluxes linked to the evapotranspiration process and sensible heat flux is critical to determine the water cycle, boundary layer development, weather and climate. According to Andrade et al (2009), the knowledge and quantification of processes linked to energy balance are important for the formulation of environmental and climate policies

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