Análise hidro-pedológica com multisensores embarcados em aeronaves remotamente pilotadas para vertentes do cerrado mato-grossense
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2019-03-29
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Universidade Federal de Goiás
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The hydro-pedological and geomorphological processes act in the same environmental conditions, in diverse landscapes and spatial scales. Thus, in the scale of strands, its actions are even more outstanding, allowing to expand and expand the possibilities of planning by science. Such an amplitude is a systemic relationship between relief, soil and water, due to the use of advanced techniques and methods added to the in situ information collection, with special emphasis on remote sensing, especially for the realization of Remotely Piloted Aircraft - RPA. A research present aimed at the use of multisensors embedded in RPA in the spatialization of hydro-pedological characteristics in slope scale for the areas of the Cerrado biome. More loans were sought as geomorphological, water and pedological duties in areas with native vegetation, agriculture and pasture, from an original experimental design, using different types of RPA (fixed-wing and multi-rotor) in the production of cartographic material of the morphometric determinants. Another interest was the examination of data of the type with different sensors (multispectral and thermal), to then diagnose the hydro-pedological patterns of the slopes. The metadata was divided into three pillars. The first consisted of leveduating densus in the state of the Cerrado, associated with activities in posterior (mapping to aspos later); Without a deadline in field activities, with the choice of sampling points, data collection in situ, overflying the RPAs embarked with the sensors, in two stages: in March 2018, for the hydrological cycle of greater rainfall, and in September 2018, for the cycle of lower rainfall. The initial phase of the methodology consisted of analyzing the data in the laboratory, concentrating on the hydro-pedological data analysis of the materials collected in the field. As a result of the methodological articulation and the search for the objectives, they have been shown as experimental results of the strands studied in ultra-detail scale (centimetric) by means of flight with RPAs and processed images; This study is the treatment of the top of study and the areas of emergence to later, the physical control of the hydrology of slopes. Larger number of blood samples, being larger in the analysis of the mean, are more important for the presence of the chemical element of silica. Another predominant chemical element is an alumina, associated with the ready-made silts on the slope. The earlier date was more important and controlled by the afternoon water surgery. Meanwhile, in the field of agriculture, the infiltration dynamics is smaller, more stable and homogeneous in the transverse of the profile. The values of humidity should be in good dispersion for the slopes, with the most pronounced differences for what is the pecury, which relates to the laterite deposit. The data were the surveys with multispectral and thermal imagers of great advancement in the series of biophysical and hydro-pedological parameters of unconcerned vertigo, with the possibility of distancing from the means of spectral indices - NDVI / NDWI, that allowed from the performance of the performance of greatness. The data are directly correlated with the dispersion of water content on the surface, acting as a predictor of moisture content (going beyond the points sampled), high speed report and validation of the data in situ. Thus, the proposed objectives were answered, with the validation of the proposed hypotheses, directed to a new form of hydro-pedological analysis for slopes, especially for the areas in the Cerrado of Mato Grosso.
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JESUZ, C. R. Análise hidro-pedológica com multisensores embarcados em aeronaves remotamente pilotadas para vertentes do cerrado mato-grossense. 2019. 223 f. Tese (Doutorado em Geografia) - Universidade Federal de Goiás, Goiânia, 2019.