Essays about: "floating chambers."

Showing result 1 - 5 of 8 essays containing the words floating chambers..

  1. 1. Emission of greenhouse gases from constructed wetlands : Nutrient status in relation to methane and nitrous oxide emission

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Christian Lundström; [2022]
    Keywords : Constructed wetland; greenhouse gas emission; nutrient status; ebullition; Anlagd våtmark; växthusgasutsläpp; näringsstatus; ebullition;

    Abstract : Agricultural land releases large amounts of nitrogen and phosphorus to water bodies which causes eutrophication. Creating wetlands on agricultural land is one way to prevent this major issue. However, constructed wetlands are a large emission source of greenhouse gases. READ MORE

  3. 2. Greenhouse gas emissions from three large lakes during the autumn 2020

    University essay from Linköpings universitet/Institutionen för tema

    Author : Veronica Bohlin; Anja Anderö Nordqvist; [2021]
    Keywords : methane; carbon dioxide; dissolved inorganic carbon; pCO2; flux chambers; large lakes; methane budget; carbon budget; GHGs; freshwater; spatiotemporal; ebullition; diffusion; autumn; metan; koldioxid; upplöst oorganiskt kol; pCO2; kammarmetod; stora sjöar; metanbudget; koldioxidbudget; växthusgaser; sötvatten; spatiotemporal; ebullition; diffusion; höst;

    Abstract : Methane (CH4) and carbon dioxide (CO2) are two greenhouse gases and main drivers of global climate change. Lakes are known to be a source of CH4 and CO2 to the atmosphere. While the importance of these emissions is clear, their magnitudes and regulation are still uncertain due to the scarcity of flux measurement data from lakes. READ MORE

  4. 3. Variability of summer CH4 and CO2 flux rates in and between three large Swedish lakes : A spatio-temporal field study

    University essay from Linköpings universitet/Tema Miljöförändring

    Author : Isak Nilsson; Filip Seifarth; [2020]
    Keywords : Large lakes; Freshwater; Flux chambers; Emissions; Ebullition; Diffusion; Carbon cycle; Carbon budget; Methane budget; Greenhouse gases; GHGs; Methane; CH4; Carbon dioxide; CO2; Variability; Spatial; Temporal; Stora sjöar; sötvatten; flödeskammare; utsläpp; bubblor; diffusion; kolcykel; kolbudget; metanbudget; växthusgaser; metan; CH4; koldioxid; CO2; variabilitet; rumslig; tidsmässig;

    Abstract : Understanding of natural greenhouse gas (GHG) cycles is crucial for making GHG budgets, which work as basis in climate change and global warming policy programs. Lakes as a source for GHG activity have only recently been included in global GHG budgets, and most studies of lake GHG flux rates are conducted on lakes <10 km2, which only comprise roughly half of the global lake area—making data of large lake flux rates scarce. READ MORE

  5. 4. Carbon dioxide in agricultural streams : Magnitude and patterns of an understudied atmospheric carbon source

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : My Osterman; [2018]
    Keywords : Carbon dioxide; streams; agriculture; catchment; floating chamber; Kendall s Tau; CORINE Land Cover;

    Abstract : The role of streams in the global carbon budget was for a long time neglected, since they were considered passive transporters of carbon from land to sea. However, studies have shown that streams are often supersaturated in carbon dioxide (CO2), making them sources of carbon to the atmosphere. READ MORE

  6. 5. Methods of measuring GHG fluxes at a full-scale Swedish WWTP: : A focus on nitrous oxide, methane and carbon dioxide in the SHARON treatment

    University essay from Linköpings universitet/Tema Miljöförändring

    Author : Sjögren Jimmy; Enhäll Elin; [2017]
    Keywords : Wastewater treatment; SHARON; nitrious oxide; methane; carbon dioxide; greenhouse gas emission; flux chamber; gas sensors;

    Abstract : The Stable high rate ammonia removal over nitrite (SHARON) at Nykvarnsverket in Linköping is a relatively new kind of biological treatment. Fluxes of nitrous oxide (N2O) has not been fully mapped at Nykvarnsverket and additional efforts are needed for increased knowledge about possible emissions. READ MORE