Anthropogenic and natural emissions data for 2000-2023 at the global and regional scales for air quality forecasts and reanalyses

Emission inventories are the key starting point for understanding the causes and possible mitigation of air pollution. They provide information about the sources of air pollution, which can be used in air quality models to make air-quality forecasts and historical reanalyses. Therefore, the Copernicus Atmosphere Monitoring Service (CAMS) has a dedicated service to provide global and European anthropogenic and natural emissions data at high resolution to support consistent and quality-controlled information related to air pollution and health, solar energy, greenhouse gases and climate forcing, everywhere in the world. CAMS, including its emission service, has been fully operational since 1 July 2015 with its first phase ending in 2021. During the first emissions service contract under the 2^nd phase of CAMS, ending in 2025, many new datasets are developed. Here we will give an overview of the CAMS emission products to inform modellers on the current state-of-the-art data. Anthropogenic emissions by source sector considering greenhouse gases and air pollutants are available for the global scale at 0.1x0.1 degree resolution for 2000-2025 (CAMS-GLOB-ANT) and European regional scale for 2005-2023 (CAMS-REG) at 0.1x0.05 degree resolution. These emissions come with auxiliary data such as emission height end emission timing following the sector-, country- and pollutant-dependent temporal profiles given by the CAMS-TEMPO dataset to provide monthly, daily or hourly emissions. For the European scale we now provide provisional recent years estimates to reduce the latency of emission data. Natural emissions are available from the CAMS emissions dataset, for biogenic, oceanic, soil, and volcanic emissions. The monthly emissions of 25 biogenic volatile organic compounds are given by the CAMS-GLOB-BIO dataset, for the 2000-2023 period at a 0.25x0.25 degree resolution. The recent years of CAMS-GLOB-BIO illustrate the dramatic growth of biogenic emissions due to the warming climate. CAMS-GLOB-SOIL provides NOx emissions from soils, for the 2000 -2023 period, for four categories. The new CAMS-GLOB-OCE dataset provides oceanic emissions of DMS and halogenated species for the 2000-2023 period at 0.5x0.5 degrees spatial resolution calculated with an Earth System model using ERA5 meteorological data and oceanic observations. The volcanic SO₂ emissions from continuously degassing volcanoes for 2005-2023 are given in the CAMS-GLOB-VOLC, based on observations from the NOVAC (Network for Observation of Volcanic and Atmospheric Change) network and from a combination of satellite sensors, and show that 90% of sources have SO₂ emissions below 1 kt/d and within the troposphere. In this presentation we discuss the latest developments, various trends and how to access the datasets.