Publications by authors named "Dailson J Bertassoli"
Operational demands and the natural inflow of water actively drive biweekly fluctuations in water levels in hydropower reservoirs. These daily to weekly fluctuations could have major effects on methane (CH) and carbon dioxide (CO) emissions via release of bubbles from reservoir bottom sediments (ebullition) or organic matter inputs, respectively. The impact of transient fluctuations in water levels on GHG emissions is poorly understood and particularly so in tropical run-of-the-river reservoirs.
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- The expansion of hydropower in tropical areas, particularly through run-of-the-river (ROR) dams like the Belo Monte dam, is thought to have lower environmental impacts due to smaller reservoirs.
- Post-damming greenhouse gas emissions in the Belo Monte region are significantly higher (up to three times more) than emissions before the dam was built, with emissions ranging from 15 to 55 kg COeq MWh.
- Even with the advantages of reduced flooded areas and a focus on power density, the total greenhouse gas emissions from ROR plants in the Amazon are substantial, suggesting that expanding hydropower in this region should be reconsidered regardless of reservoir size.