2023 Aerosol properties derived from COCCON ground-based Fourier Transform spectra Langley – Ratio calibration method ESA Project 2: Maintenance of lunar photometer and lunar irradiance model (2020-2023) Measuring column spectral aerosol single scattering albedo at multiple wavelengths in the UV, visible, and near IR using multi-filter rotating shadow band radiometers (MFRSR’s) 2021-2022 Spectral lunar irradiance measurement campaign at IARC Aerosol Radiative Forcing and Efficiency of the La Palma Volcanic Plume over the Izaña Observatory Long-term characterisation of the vertical structure of the Saharan Air Layer over the Canary Islands using lidar and radiosondes profiles: implications for radiative and cloud processes over the subtropical Atlantic Ocean Water Vapor Retrievals from Spectral Direct Irradiance Measured with an EKO MS-711 Spectroradiometer – Intercomparison with Other Techniques Aerosols in LEarning about climate throughout Measurements By Instrument assuring data Quality (ALEMBIQ) 2019-2020 Aerosol retrievals from the EKO MS-711 spectral direct irradiance measurements and corrections of the circumsolar radiation Column Integrated Water Vapour and Aerosol Load Characterization with the New ZEN-R52 Radiometer Evaluation of night-time aerosol measurements and lunar irradiance models in the frame of the first multi-instrument nocturnal intercomparison campaign Correction of a lunar-irradiance model for aerosol optical depth retrieval andcomparison with a star photometer Field test of the Mars 2020 Rover Mission in terrain analogous to Mars in Teide Peak Color Sky Quality Meter (CoSQM) Prede/PFR/Cimel/Brewer/FTIR/EKO/ Pandora intercomparison project Spectral Aerosol Optical Depth Retrievals by Ground-Based Fourier Transform Infrared Spectrometry Long-term (2005-2015) comprehensive assessment of GAW-PFR and AERONET-Cimel AOD intercomparability and traceability using 1 min synchronous measurements ESA project 1: Lunar spectral irradiance measurement and modelling for absolute calibration of EO optical sensors (2017-2019) 2017-2018 Design, development and testing of a new low-cost and robust zenith-looking multi narrowband radiometer (ZEN) for AOD retrieval Validation of AOD in UV range using double Brewer spectrophotometers Low-cost hand-held sunphotometer assessment Development of synergy photometer/lidar methodologies for retrieving vertical aerosol extinction Validation of the IASI level 2 temperature, humidity, and trace gas products (VALIASI) at Izaña with FTIR high-quality in-situ measurements Lunar Photometry: Assessment of nocturnal Aerosol Optical Depth from lunar photometry Lunar Photometry Campaign and Workshop Izaña 2017 ESA project: lunar spectral irradiance measurement and modelling for absolute calibration of Earth Orbiting optical sensors 2014-2016 The reconstruction of a 73-year time series of AOD at 500 nm by using artificial neural networks Development and testing of several lunar photometer prototypes and the new Triple(Sun-Lunar-Sky) CE318-T photometer Research on water vapor isotopologues with Fourier Transform Infrared Technique AOD from PANDORA photometer Sun-photometry Training Course