MAPEAMENTO DE DETALHE DO CORREDOR FLUVIAL DO RIO PARAGUAI ENTRE A FOZ DO RIO CABAÇAL E A CIDADE DE CÁCERES, MATO GROSSO

MAPPING OF DETAIL OF PARAGUAI RIVER CORRIDOR BETWEEN CABAÇAL RIVER MOUTH AND THE CITY OF CÁCERES, MATO GROSSO

Abstract

This research was developed in a segment of the fluvial corridor of the Paraguai river located between the mouth of the Cabaçal river and the city of Cáceres, Mato Grosso, with the objective of analyzing the fluvial features inserted in the fluvial corridor through mapping of detail. For this, the research relied on the interpretation and identification of river features using a satellite image from August 2018, made available by the Google Earth Pro program, with the vectorization of river features using the “polygon” tool at a level of detail, provided by the good resolution of the image. Subsequently, a folder containing the vectorized features was transferred to the SIG ArcGis® to generate the georeferenced maps representative of the study area. Two field activities took place in July 2019 to assist in mapping features. Four maps were generated and classified in compartments I, II, III and IV. Within the scope of the approached segment, 27 submerged bars, 140 lateral bars, 04 central bars, 29 marginal strands, 10 marginal dikes, 12 islands, 160 lagoons, 15 bays and 28 decantation basins were identified. The genesis and maintenance of these features is due to the fluvial dynamics of the Paraguay River, and climatic or human changes due to the inappropriate use of the land can influence the appearance of new features or the disappearance of others.