Data: 09/11/2020 à 11/11/2020
Mais informações: http://www.abrhidro.org.br/xivenes
FLUXOS DE SEDIMENTOS EM SUSPENSÃO SIMULADOS NA AMÉRICA DO SUL - PARTE 2: ANÁLISE ESPAÇO-TEMPORAL
Hugo de Oliveira Fagundes, Fernando Mainardi Fan, Rodrigo Cauduro Dias de Paiva, VINÍCIUS ALENCAR SIQUEIRA, Diogo Costa Buarque, Luísa Weizenmann Kornoswski, LEONARDO LAIPELT DOS SANTOS, Walter Collischonn
11 - MODELAGEM HIDROSSEDIMENTOLÓGICA
Erosion and sediment transport models are useful tools to improve the comprehension of sediment-related processes. Using the MGB-SED SA model presented in part 1 of this work, we performed a temporal and spatial analysis of suspended sediment fluxes over South America. We use maps and graphics to show the results of the model simulation. It was estimated using MGB-SED SA that South America naturally (without impoundments) daily delivery to the oceans 3.10×1010 m³ of water and 2.76 Mt of suspended sediment. The results showed the importance of model calibration at the continental scale and the use of a hydrodynamic routing method, in which both improve model estimates. Floodplains play a essential role trapping sediments and smoothing out the peaks of suspended sediment discharges. The Amazon, Magdalena and La Plata have the highest annual sediment transport and deposition rates.