Project: Metrology for aerosol optical properties

Acronym 19ENV04 MAPP (Reference Number: 19ENV04)
Duration 01/06/2020 - 01/06/2023
Project Topic Atmospheric aerosols absorb or scatter solar radiation contributing the largest uncertainty to estimates and interpretations of climate change. Data for aerosol effects on sky radiation is typically collected by optical radiometers which are largely lacking traceability to the SI. Furthermore, radiometer calibration, using artefacts, is performed outdoors at only two locations world-wide. Requiring perfect weather, the resulting long calibration times lead to excessive downtimes at monitoring stations. SI traceable devices capable of on-site calibration would significantly speed up the calibration process, allowing more data to be obtained. Building upon the work of the EMRP projects SolarUV, METEOC-2 and ATMOZ the project will develop methods and SI-traceable devices for both laboratory and in-field calibrations of radiometers measuring solar and lunar irradiance. Data on the measurement uncertainty for a range of aerosol optical properties, retrieved from remote sensing-based instruments will also be developed along with validated methods linking ground-based measurements to satellite-based data. At the end of the project in 2023 results obtained will help shorten the radiometer calibration chain, reduce the downtime of monitoring networks and generate traceable data to support societies in adapting to a changing climate.
Website visit project website
Network EMPIR
Call EMPIR Call 2019

Project partner

Number Name Role Country
1 Schweizerisches Forschungsinstitut für Hochgebirgsklima und Medizin in Davos Coordinator Switzerland
2 Aalto-korkeakoulusäätiö sr Partner Finland
3 Cesky Metrologicky Institut Partner Czech Republic
4 NPL Management Limited Partner United Kingdom
5 Physikalisch-Technische Bundesanstalt Partner Germany
6 VSL B.V. Partner Netherlands
7 Agencia Estatal de Meteorología Partner Spain
8 Consiglio Nazionale delle Ricerche Partner Italy
9 Centre National de la Recherche Scientifique Partner France
10 GENERALIZED RETRIEVAL OF ATMOSPHERE AND SURFACE PROPERTIES EN ABREGE GRASP Partner France
11 The University of Reading Partner United Kingdom
12 Universitat de València Partner Spain
13 Universidad De Valladolid Partner Spain