Abstract

Over the past century ammonia (NH3) emissions have increased with human population growth and fertilizer usage. The abundant NH3 emissions lead to climate change, reduction in biodiversity and affect the human health. Up-to-date information of NH3emissions are essential to better understand the impact of NH3. In this study we adapted the existing DECSO (Daily Emissions Constrained by Satellite Observations) algorithm for use of NH3 observations from the Cross-track Infrared Sounder (CrIS) to estimate NH3 emissions. By considering the interaction between NH3 and NOx, we implemented DECSO to estimate NOx and NH3 emissions simultaneously on 20 km resolution over European domain. NH3 and NOx emissions over Europe are derived for 2020 on a daily basis from CrIS and TROPOMI (on Sentinel 5p). Due to the sparseness of daily satellite observations of NH3, monthly emissions of NH3 are constructed and analysed.  The comparison of these emissions with other existing emission inventories will be presented.

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