Methane is a greenhouse gas emitted by a range of natural and anthropogenic sources.
Atmospheric methane has been measured continuously from space since 2003, and new …

The Network for the Detection of Atmospheric Composition Change (NDACC) is an
international global network of more than 90 stations making high-quality measurements of …

A chemistry-transport model (CTM) intercomparison experiment (TransCom-CH 4) has been
designed to investigate the roles of surface emissions, transport and chemical loss in …

Methane retrievals from the Scanning Imaging Absorption Spectrometer for Atmospheric
Chartography (SCIAMACHY) instrument onboard ENVISAT provide important information on …

Stratospheric water vapour is a powerful greenhouse gas. The longest available record from
balloon observations over Boulder, Colorado, USA shows increases in stratospheric water …

Spaceborne remote sensing provides valuable information about the state of the Earth‐
atmosphere system and its components in an area‐wide and continuous manner. Over the …

Satellite retrievals of methane (CH 4) using the Atmospheric Infrared Sounder (AIRS) on the
EOS/Aqua platform from 2003–2007 show a strong, plume-like enhancement of CH 4 in the …

Although the global methane (CH 4) concentration has more than doubled since pre-
industrial times, local emission sources are still poorly identified and quantified. Instruments …

The GEOS-Chem simulation of atmospheric CH 4 was evaluated against observations from
the Thermal And Near infrared Sensor for carbon Observations Fourier Transform …

Hydrogen chloride (HCl) and hydrogen fluoride (HF) are respectively the main chlorine and
fluorine reservoirs in the Earth's stratosphere. Their buildup resulted from the intensive use …