Incra officials in Minas Gerais who are qualified to operate Unmanned Aerial Vehicles (UAVs) will finalize the topographic aerial survey of the Jacaré Grande settlement, located in the municipality of Janaúba in Minas Gerais, on Friday (17). The work is the first in the state to be carried out with XMobots' Echar20C HA drone, speeding up the preparation of technical documents for the titling of plots.
While two civil servants carried out the aerial survey in the field during the week, another part of the team checked the first data collected. The inaugural flight took place on October 26, covering 780 hectares. The total area of the settlement is 11,100 hectares, divided into 200 plots. The processing of the initial information was completed last week, serving as a guide for the next activities.
According to the head of Incra/MG's Land Structure Planning Division, Marcelo José Pereira da Cunha, who also coordinates the national Unmanned Aerial Vehicles group, the first batch of images analyzed shows the quality of the positional accuracy. In other words, it proves the accuracy of the coordinates extracted by the UAV.
On the ground, 20 checkpoints were determined. These are the parameters for checking the degree of accuracy achieved after processing the images. The overall average accuracy was 13.8 centimeters. The best accuracy required by Incra's technical standard is 50 cm and the most restrictive standard for cartographic accuracy of digital products in Brazil is 28 cm. Everything we measured on the photo mosaic had an uncertainty of just 13.8 cm, demonstrating the quality of the technology we have started to use, adds Cunha.
In the first stage, 1,186 high-resolution images were produced. All with the respective geographical coordinates and detailed mapping of part of the settlement. It was possible to identify the fences and boundaries of the plots, plantations, crops, livestock, houses, corrals, electricity lines and even the mark of the streams dried up due to the drought.
The material makes it possible to draw up the plan and descriptive memorial for the plots, which will be certified by Incra's Land Management System (Sigef). These documents are basic requirements for issuing definitive land titles, as they need to be registered with a notary.
Echar
The aerial surveying services were carried out using an XMobots drone, the Echar 20C HA, one of three such vehicles purchased by INCRA (there is another in the same category and another larger one, the Nauru 500B HA, which is in operation in Goiás).
The Echar20C HA has a flight autonomy of two and a half hours and covers 1,500 hectares. It speeds up our actions considerably. If we had to take each border point manually with GPS, it would take us between three and four months to do the field work. Now we've done it in 15 days. Furthermore, if we were to put out a tender for the parceling out of the area, we would spend around R$180,000. With the UAV, there's only a cost of R$10,000 for travel and per diems for two or three civil servants. So we saved financial resources and time, says Cunha.
For the regional superintendent of INCRA/MG, Robson de Oliveira Fonzar, modernization brings faster results to society. The incorporation of Unmanned Aerial Vehicles speeds up georeferencing services. We have brought forward by days what would have taken us months to do, and this is reflected in better service for the settlers. In a much shorter time, we have been able to draw up the maps and documents needed for titling and the legal security of the families who live on that land, he says.
Source: Incra