Confecção de curvas de nível para arroz irrigado com diferentes plataformas de aquisição de dados altimetricos

Abstract

The culture of rice (Oryza sativa L.) has a high importance in the economy, and this crop is one of the responsible for the economic development of the western border of Rio Grande do Sul. However, in this crop there are peculiarities in soil preparation that differ relatively from the others, the use of irrigation requires that the task of leveling the soil be applied in the rice crop, this task within the rice crop is the most important among the others, as it is an operation that requires the operator of the equipment responsible for altimetry to have the ability and knowledge of the soil. The use of technologies such as Real Time Kinematic (RTK), Drones and UAVs (Unmanned Aerial Vehicle) are already used for the preparation of contour lines, in order to reduce the time spent and reduce the error of human operation, making the leveling of rice crops practical, efficient and accurate. Therefore, the objective of this study was to evaluate the quality of the quality of contour lines generated by three different platforms and methodologies for collecting planialtimetric data. The work used three methodologies, namely: data collection with a correction drone with control and verification points, called PC, drone with PPK post correction, called PPK, and finally terrestrial altimetric research with the use of RTK embedded in an automotive vehicle, called RTK. The results of this research showed that the curves generated by the RTK and the PPk Drone are very similar while the data generated by the drone with control point brought a greater difference between the others, showing results already expected because the levels of correction between them are very distant and significant, finally showing the differences after the processing and treatment of the data collected in the field Key-words: Altimetric survey, Real time Kinematic (RTK), Ground leveling.