Sentences with phrase «monitoring atmospheric methane»
The number of stations monitoring atmospheric methane concentrations worldwide is very few.
https://dotearth.blogs.nytimes.com/ Not exact matches
The first clues appeared in 2007, when NOAA researchers noticed occasional plumes of pollutants including methane, butane and propane in air samples taken from a 300 - metre - high atmospheric monitoring tower north of Denver.
The Arctic Monitoring and Assessment Program (AMAP) carbon assessment published in 2009 highlighted the disparity in methane emissions estimated by extrapolating data from wetlands, lakes, and coastal waters underlain by permafrost (32 to 112 Tg CH4 yr - 1) and estimates based on spatial and temporal variability of atmospheric methane concentrations (15 to 50 Tg CH4 yr - 1).
-- Readings from the monitoring stations at Barrow do in fact show huge increases in atmospheric methane levels
If permafrost soils begin to release climatically significant amounts of methane, it should be detectable through monitoring atmospheric concentrations of methane using a network of monitoring stations around the world, but the current network is too sparse.
A combination of historical ice core data and air monitoring instruments reveals a consistent trend: global atmospheric methane concentrations have risen sharply in the past 2000 years.
The researchers were able to discern agricultural methane from other sources of methane by looking at the gas» isotopic signatures — or the ratio of various carbon isotopes — using data from atmospheric monitoring stations around the world.