TEMPO was selected in 2012 by NASA as the first Earth Venture Instrument, for launch
between 2018 and 2021. It will measure atmospheric pollution for greater North America …

Data assimilation is used in atmospheric chemistry models to improve air quality forecasts,
construct re-analyses of three-dimensional chemical (including aerosol) concentrations and …

Short‑lived climate forcers (SLCFs) affect climate and are, in most cases, also air pollutants.
They include aerosols (sulphate, nitrate, ammonium, carbonaceous aerosols, mineral dust …

Global surface emissions of nitrogen oxides (NO x) over a 10-year period (2005–2014) are
estimated from an assimilation of multiple satellite data sets: tropospheric NO 2 columns …

Bottom-up emission inventories of atmospheric nitrogen oxides (NO x= NO+ NO2) are
usually limited to annual updates and have large uncertainties. The recent launch of the …

Lightning generates relatively large but uncertain quantities of nitrogen oxides (NO x),
critical precursors for ozone and hydroxyl radical (OH), the primary tropospheric oxidants …

Climate change, air quality, and environmental degradation are important societal
challenges for the Twenty-first Century. These challenges require an intelligent response …

Arid ecosystems cover∼ 40% of the Earth's terrestrial surface and store a high proportion of
the global nitrogen (N) pool. They are low-productivity, low-biomass, and polyextreme …

This study presents the results from the Tropospheric Chemistry Reanalysis version 2 (TCR-
2) for the period 2005–2018 at 1.1∘ horizontal resolution obtained from the assimilation of …

The hydroxyl radical (OH) is a key oxidant involved in the removal of air pollutants and
greenhouse gases from the atmosphere,,. The ratio of Northern Hemispheric to Southern …