RESERVOIR SEDIMENTATION ASSESSMENT GUIDELINE - Aneel

Reservoir Sedimentation Assessment GuidelineTable 7.10 – Semi-annual bulleting on suspended discharge - São Francisco River in Porto dasAndorinhasTransporte total anual = annual total transportationMáximo transporte diário = maximum daily transportationMínimo transporte diário = minimum daily transportationMáxima concentração anual = maximum annual concentrationMínima concentração anual = minimum annual concentrationSumário anual = annual summaryDeflúvio total anual = annual total runoffTransporte médio anual = annual average transportationEscoamento específico = specific runoffContribuição de sedimento = sediment contribution7.5.2 Eventual measurementsData processing for eventual measurements is performed by preparing thesediment transportation rating curve using either concentration or sediment discharge inconnection with the net discharge. A common practice is to work with the bilogarithmicsheet, such as the example in Figure 7.12. The curves may be obtainedthrough visual process or through the minimum squares method, as used for Excel. Oneshould be very careful when using the computer, mainly when there is a dataconcentration that may come to influence the curve direction. It is a common practice toANEEL – Brazilian Electricity Regulatory Agency / SIH – Hydrologic Studies and Information Department33