Essays about: "floating chamber"

Showing result 1 - 5 of 10 essays containing the words floating chamber.

1. 1. Effects of vegetation and nutrients on methanotroph abundance and methane emissions from constructed wetlands

   University essay from SLU/Dept. of Aquatic Sciences and Assessment

   Author : Klara Yngve; [2022]
   Keywords : Diffusive flux; Ebullition; Dissolved CH4; CH4 oxidation; Phosphorous;

   Abstract : Agriculture is the largest anthropogenic source of nitrogen and phosphorous (P) leakage to Swedish coastal seas, causing eutrophication which threatens marine ecosystems. Constructing wetlands is one way to improve nutrient retention in the modern agricultural landscape. However, constructed wetlands can emit substantial amounts of methane (CH4). 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. Automatic detection of the fuel composition in a Diesel Engine : Identifying fuel composition in the fuel system of a combustion engine and optimising for computational complexity

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Andree Hultgren; [2021]
   Keywords : Fuel Detection; Machine Learning; Feature Selection; Computational Complexity; Bränsledetektering; Maskininlärning; Paremeterval; Beräkningskomplexitet;

   Abstract : The transportation industry is responsible for 26% of all emission of greenhouse gases in the European Union. Many steps are being taken to minimise greenhouse gas emissions. The most effective way to reduce the emission of greenhouse gases is by transitioning to biofuels. READ MORE

5. 4. 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

6. 5. Methane fluxes in lakes at different spatiotemporal scales

   University essay from Linköpings universitet/Institutionen för tema

   Author : Erik Hallgren; Olle Åman; [2019]
   Keywords : Methane; Variability; Small-lakes; Floating Chamber; Spatial Temporal; Greenhouse gas; Metan; Variabilitet; Sjöar; Spatial; Temporal; Flöden; Växthusgas;

   Abstract : Freshwater bodies such as lakes release the greenhouse gas methane (CH4) into the atmosphere. Global emissions from lakes are estimated to emit more CH4 than oceans, despite that lakes occupies a much smaller global land area. Lakes are therefore significant components for global budgets of CH4. READ MORE