Global warming potentials

Rosa, Luiz Pinguelli; Schaeffer, Roberto

doi:10.1016/0301-4215(95)91418-c

Cited by 84 publications

(8 citation statements)

References 19 publications

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“…(2) VOL. 36 While hydroelectric plants do not use fossil fuels in operation, they emit GHGs from biomass decay in the dam's reservoir, a subject of debate lately (22,23,3). Yearly biomass emissions are reduced as the flooded vegetation decays over time.…”

Section: Hydroelectric Plant: the Case Of Glen Canyon Dammentioning

confidence: 99%

Greenhouse Gas Emissions from Building and Operating Electric Power Plants in the Upper Colorado River Basin

Pacca

Horvath

2002

Environ. Sci. Technol.

118

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As demand for electricity increases, investments into new generation capacity from renewable and nonrenewable sources should include assessment of global (climate) change consequences not just of the operational phase of the power plants but construction effects as well. In this paper, the global warming effect (GWE) associated with construction and operation of comparable hydroelectric, wind, solar, coal, and natural gas power plants is estimated for four time periods after construction. The assessment includes greenhouse gas emissions from construction, burning of fuels, flooded biomass decay in the reservoir, loss of net ecosystem production, and land use. The results indicate that a wind farm and a hydroelectric plant in an arid zone (such as the Glen Canyon in the Upper Colorado River Basin) appear to have lower GWE than other power plants. For the Glen Canyon hydroelectric plant, the upgrade 20 yr after the beginning of operation increased power capacity by 39% but resulted in a mere 1% of the CO2 emissions from the initial construction and came with no additional emissions from the reservoir, which accounts for the majority of the GWE.

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Section: Hydroelectric Plant: the Case Of Glen Canyon Dammentioning

confidence: 99%

Greenhouse Gas Emissions from Building and Operating Electric Power Plants in the Upper Colorado River Basin

Pacca

Horvath

2002

Environ. Sci. Technol.

118

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“…Among the reasons for choosing THR for this study was that it is one of the largest reservoirs in the Amazon region (surface area around 2500 km 2 and volume around 52 billion m 3 at the maximum operational water level, 74 m above mean sea level) and for which a long term environmental dataset is available. Several studies have been conducted in the THR regarding C emissions and it was the focus of a warm discussion in the scientific literature in the last decade (Rosa and Schaeffer, 1995;Fearnside, 1995Fearnside, , 2002Rosa et al, 2006).…”

Section: Site Descriptionmentioning

confidence: 99%

“…During the last two decades Tucuruí dam and its reservoir was the focus of a warm discussion in the literature (Rosa and Schaeffer, 1995;Fearnside, 1995;Fearnside, 2002;Rosa et al, 2006) regarding its total Fig. 12.…”

Section: Comparison With Previous Studies In Tucuruí Reservoirmentioning

confidence: 99%

“…It has been a little over twenty years since the publication of the pioneering work by Rudd et al (1993) which addressed the problem of greenhouse gases (GHG) emissions from reservoirs of hydroelectric power plants. Since then, this subject has been the focus of work and research of scientists and environmental managers in many countries such as: Canada (Duchemin et al, 1995), United States (Soumis et al, 2004), Brazil (Rosa and Schaeffer, 1995;Rosa et al, 2004;Santos et al, 2006), Panama (Keller and Stallard, 1994), French Guiana (Galy-Lacaux et al, 1997;Galy-Lacaux et al, 1999), Sweden (Aberg et al, 2004), Finland (Huttunen et al, 2002) and China (Xiao et al, 2013). Despite of the great progress achieved in the past two decades of research there are still significant gaps in our knowledge regarding the temporal and spatial variability of the GHG emissions.…”

Section: Introductionmentioning

confidence: 99%

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Carbon dioxide emissions from Tucuruí reservoir (Amazon biome): New findings based on three-dimensional ecological model simulations

Curtarelli

Ogashawara

Araújo

et al. 2016

Science of The Total Environment

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We used a three-dimensional model to assess the dynamics of diffusive carbon dioxide flux (F(CO2)) from a hydroelectric reservoir located at Amazon rainforest. Our results showed that for the studied periods (2013 summer/wet and winter/dry seasons) the surface averaged F(CO2) presented similar behaviors, with regular emissions peaks. The mean daily surface averaged F(CO2) showed no significant difference between the seasons (p>0.01), with values around -1338mg Cm-2day-1 (summer/wet) and -1395mg Cm-2day-1 (winter/dry). At diel scale, the F(CO2) was large during the night and morning and low during the afternoon in both seasons. Regarding its spatial distribution, the F(CO2) showed to be more heterogeneous during the summer/wet than during the winter/dry season. The highest F(CO2) were observed at transition zone (-300mg Cm-2h-1) during summer and at littoral zone (-55mg Cm-2h-1) during the winter. The total CO2 emitted by the reservoir along 2013 year was estimated to be 1.1Tg C year-1. By extrapolating our results we found that the total carbon emitted by all Amazonian reservoirs can be around 7Tg C year-1, which is 22% lower than the previous published estimate. This significant difference should not be neglected in the carbon inventories since the carbon emission is a key factor when comparing the environmental impacts of different sources of electricity generation and can influences decision makers in the selection of the more appropriate source of electricity and, in case of hydroelectricity, the geographical position of the reservoirs.

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“…Studies on greenhouse gases emissions from manmade reservoirs began in the 1990s after the publication of Kelly et al [14], followed by other research [12,13,[18][19][20], and went on to analyze the spatial variations in reservoirs, the sources of organic matter and the processes involved [1,5,10,15,21,24,25].…”

Section: Introductionmentioning

confidence: 99%

A model for the data extrapolation of greenhouse gas emissions in the Brazilian hydroelectric system

Rosa¹,

Santos²,

Gesteira

et al. 2016

Environ. Res. Lett.

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Global warming potentials

Cited by 84 publications

References 19 publications

Greenhouse Gas Emissions from Building and Operating Electric Power Plants in the Upper Colorado River Basin

Greenhouse Gas Emissions from Building and Operating Electric Power Plants in the Upper Colorado River Basin

Carbon dioxide emissions from Tucuruí reservoir (Amazon biome): New findings based on three-dimensional ecological model simulations

A model for the data extrapolation of greenhouse gas emissions in the Brazilian hydroelectric system

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