EUMETSAT AC SAF

@ac-saf.eumetsat.int

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This is the official account for the @ac-saf.eumetsat.int Satellite Application Facility on Atmospheric Composition Monitoring (AC SAF)

Image showing Tuuli Perttula in front of screen and giving a talk at WSW2026. The topic of the talk is Tailored Satellite-Based Air Quality Products for Operational Weather Forecasting - Turning complex satellite and in situ data into intuitive products that support real-time air quality monitoring and forecasting.
Artistic view of the Metop satellite with extended solar panels flowing over earth where clouds are visible.
A PNG image that gives details of the released products: Title: IASI L2 ozone profile and total ozone Climate Data Record released Spatial Coverage: Global IASI Metop-A and B and B instruments: IASI-A: 10.07.2007 – 31.12.2019 IASI-B: 20.02.2013 – 31.12.2023 FORLI v20151001 NetCDF4.0 Format, 13-14 orbits per day, about 35MB each Dissemination from the EUMETSAT User portal (see DOI) More info: https://acsaf.org/datarecords/iasi_o3_cdr.php Licence CC-BY-4.0 DOI: 10.15770/EUM_SAF_AC_0051 WWW address and e-mail address: http://ac-saf.eumetsat.int helpdesk@acsaf.org Short description: The IASI reprocessed ozone climate data record includes ozone profiles and meteorological variables reprocessed with the last version of the Eumetsat Level 2 processor and the version v20151001 of FORLI software. It provides stable, high-quality data for climate studies and its results are consistent with those of the NRT processing. This CDR can be used to estimate ozone trends relevant to air quality and climate studies, to monitor the evolution of the Antarctic ozone layer
Nairobi and it's surrounding area. The high NO2 values are over the city itself and the other heavily populated areas near Nairobi. The NO2 values over countryside are much smaller due to lacking traffic.
Announcement of the release of the Lambertian-Equivalent Reflectivity (DLER) v4.1 product. Spatial Coverage: Global 01/2007 - 08/2022 (MSC) and 03/2008 - 08/2022 (PMD) GOME-2 onboard Metop-A, B and C Data amount increased 1.8 times from the previous version Quality improved both for MSC and PMD Directionality improved (more stable) Added 747 nm wavelength band for MSC Improved uncertainties NetCDF4 file sizes: MSC: 2.3 GB, PMD: 1.6 GB Dissemination via AC SAF archive DOI: 10.15770/EUM_SAF_AC_0050 Image of global MSC-DLER 772 nm.
People standibng in front of screens in Open Space excercise and having ideas for the next sessions
Short text with an image telling that the Demonstrational Dust Optical Depth from IASI is available: Dust optical depths at 10µm with associated estimated errors Metop B and C platforms, IASI instrument Global spatial coverage NetCDF4 file format The product files are available to users every day. Morning (day) and evening (night) overpasses included. Algorithm V9.0 (neural network) Includes a quality flag, value 1 indicating the most reliable observations Dissemination via EUMETCast Contact: helpdesk@acsaf.org