...% of the sites emitted methane at detectable rates. The CH 4 emission rates obtained during the ROMEO campaign are comparable to the methane emission rates in study carried out in other Romanian regions. Methane is, after carbon dioxide, the most important greenhouse gas, with natural and anthropogenic...

... use, distribution, and reproduction in any medium, provided the original author and source are credited. See http://creativecommons.org/licenses/by/4.0/ . Methane Advanced leak detection Natural gas Mobile survey CH4 Greenhouse gas In recent years, highly sensitive methane (CH 4...

...T. Klausner; M. Mertens; H. Huntrieser; M. Galkowski; G. Kuhlmann; R. Baumann; A. Fiehn; P. Jöckel; M. Pühl; A. Roiger; Detlev Helmig; Lori Bruhwiler Urban areas are recognised as a significant source of greenhouse gas emissions (GHG), such as carbon dioxide (CO 2 ) and methane (CH 4 ). The total...

... Tropospheric Ozone Observations Trends Extremes Variability Pollution Greenhouse gas Air quality Figure 1 Schematic of chemical and physical processes included in a typical global chemistry model to simulate tropospheric ozone. The Earth is divided into a 3-dimensional grid, with latitude...

.... methane natural gas emissions pipelines greenhouse gas U.S. dry natural gas production increased from 18 to 27 trillion ft 3 between 2005 and 2015 ( EIA, 2016b ). Use of natural gas offers potential climate benefits compared to coal or oil ( EIA, 2016a ), but those benefits depend upon...

... emissions via a tower-based greenhouse gas (GHG) network, as part of the Indianapolis Flux (INFLUX) experiment. By examining afternoon-averaged results from a network of carbon dioxide (CO 2 ), methane (CH 4 ), and carbon monoxide (CO) mole fraction measurements in Indianapolis, Indiana for 2011–2013, we...

.... Gurney; Detlev Helmig; Armin Wisthaler To effectively address climate change, aggressive mitigation policies need to be implemented to reduce greenhouse gas emissions. Anthropogenic carbon emissions are mostly generated from urban environments, where human activities are spatially concentrated...

..., distribution, and reproduction in any medium, provided the original author and source are credited. See http://creativecommons.org/licenses/by/4.0/ . Greenhouse gas Transport Weather and Research Forecasting Model (WRF) Inversion Inversion of atmospheric tracers ( Tarantola 2005 ) is a widely...

... recovery and modeled “theoretical” gas generation--this factor has rarely been determined in field settings addressing all CH 4 pathways (recovery, emissions, oxidation, lateral migration, and internal storage). [See discussion in Spokas et al. (2006) ]. National-scale greenhouse gas (GHG...