Using observations from aircraft, surface stations and a satellite instrument, we comprehensively...
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Concentrations of atmospheric methane (CH4), the second most important greenhouse gas, continue t...
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There is a growing need for more systematic, robust, and comprehensive information on the value-a...
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Nitrogen oxides (NOx≡NO+NO2) in the NOx-limited upper troposphere (UT) are long-lived and so...
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