The Ozone Monitoring Instrument (OMI) is an imaging UV-VIS solar backscatter spectrometer and is designed and used primarily to retrieve trace gases like O3 and NO2 from the measured Earth reflectance spectrum in the UV-visible (270–500 nm). However, also aerosols are an important science target of OMI. The multi-wavelength algorithm is used to retrieve aerosol parameters from OMI spectral refl...

The development of research on atmospheric ozone at Oxford is traced from the year 1922, when one single instrument was used there to make measurements of the total ozone, to 1966, when some hundred instruments were distributed all over the world. In recent years an important advance has been made by the measurement of the vertical distribution of the ozone in the atmosphere. A digression, cove...

Abstract. We investigate the impact of so-called energetic particle precipitation (EPP) indirect effect on lower stratospheric ozone, ClO, and ClONO2 in Antarctic springtime. use observations from Microwave Limb Sounder (MLS) Ozone Monitoring Instrument (OMI) Aura, Atmospheric Chemistry Experiment – Fourier Transform Spectrometer (ACE-FTS) SCISAT, Michelson Interferometer for Passive Sounding (...

The impact of surface emissions on the zonal structure of tropical tropospheric ozone and carbon monoxide is investigated for November 2004 using satellite observations, in-situ measurements, and chemical transport models in conjunction with inverse-estimated surface emissions.Vertical ozone profiles from the Tropospheric Emission Spectrometer (TES) and ozone sonde measurements from the Souther...

Abstract. Satellite observations of tropospheric NO2 columns can provide top-down observational constraints on emissions estimates nitrogen oxides (NOx). Mass-balance-based methods are often applied for this purpose but do not isolate near-surface from those aloft, such as lightning emissions. Here, we introduce an inverse modeling framework that couples satellite chemical data assimilation to ...

Nitrogen oxides (NOx) are air pollutants critical to ozone and fine particle production in the troposphere. Here, we present fuel-based emission inventories updated 2018, including for mobile source engines using Fuel-based Inventory of Vehicle Emissions (FIVEs) oil gas Oil Gas (FOG) inventory. The FIVE emissions now consistent with NEI17 estimates differing within 2% across contiguous US (CONU...

The chemical and dynamical processes governing the zonal variability of tropical tropospheric ozone and carbon monoxide are investigated for November 2004 using satellite observations, in-situ measurements, and chemical transport models in conjunction with inverse estimated surface emissions. Vertical ozone profile estimates from the Tropospheric Emission Spectrometer (TES) and ozone sonde meas...

Accurate and temporally resolved fields of freetroposphere ozone are of major importance to quantify the intercontinental transport of pollution and the ozone radiative forcing. We consider a global chemical transport model (MOdèle de Chimie Atmosphérique à Grande Échelle, MOCAGE) in combination with a linear ozone chemistry scheme to examine the impact of assimilating observations from the Mic...

[1] Global maps of the Earth’s surface Lambertian equivalent reflectance (LER) are constructed using 3 years of Ozone Monitoring Instrument (OMI) measurements obtained between October 2004 and October 2007 at 23 wavelengths between 328 and 500 nm. The maps are constructed on a 0.5 by 0.5 longitude-latitude grid for each calendar month using an algorithm based on temporal histograms of the obser...

Ozone has become the main factor affecting air quality in Pearl River Delta (PRD) recent years, and a clear understanding source of ozone pollution is top priority prevention. However, vertical distribution tropospheric PRD poorly understood. Based on daily sounding data obtained Yangjiang (111°58'00" E, 21°50'00" N), Guangdong Province, from 18 November tjo 3 December 2013, detailed its influe...