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GTS Bulletin: IUTI14 EDZW - Observational data (Binary coded) - BUFR (details are described in the abstract)

The IUTI14 TTAAii Data Designators decode as: T1 (I): Observational data (Binary coded) - BUFR T1T2 (IU): Upper air T1T2A1 (IUT): (used for satellite-derived sondes – see Note 3) A2 (I): 0° - 90°W southern hemisphere (Remarks from Volume-C: (CBS)SATELLITE RADIO OCCULTATION DATA)

GTS Bulletin: IUTL14 EDZW - Observational data (Binary coded) - BUFR (details are described in the abstract)

The IUTL14 TTAAii Data Designators decode as: T1 (I): Observational data (Binary coded) - BUFR T1T2 (IU): Upper air T1T2A1 (IUT): (used for satellite-derived sondes – see Note 3) A2 (L): 90°E - 0° southern hemisphere (Remarks from Volume-C: (CBS)SATELLITE RADIO OCCULTATION DATA)

Collection of data sets for the Clouds over cOMPlEX environment - EarthCARE (COMPEX-EC) campaign, carried out in Kiruna in spring 2025

This data collection unites the individual data sets of the COMPEX-EC (Clouds over cOMPlEX environment - EarthCARE) campaign, carried out in Kiruna 2.-16.4.2025. COMPEX-EC has been designed as an EarthCARE validation campaign. For that purpose, Polar 5 (C-GAWI) has been equipped with instrumentation similar to the one operated on EarthCARE (W-band radar, lidar, radiometers, spectral imagers). Seven research flights (summing up to more than 30 flight hours) were conducted each of them underflying the EarthCARE satellite to validate its performance.

GTS Bulletin: IUTD14 EDZW - Observational data (Binary coded) - BUFR (details are described in the abstract)

The IUTD14 TTAAii Data Designators decode as: T1 (I): Observational data (Binary coded) - BUFR T1T2 (IU): Upper air T1T2A1 (IUT): (used for satellite-derived sondes – see Note 3) A2 (D): 90°E - 0° northern hemisphere (Remarks from Volume-C: (CBS)SATELLITE RADIO OCCULTATION DATA)

METOP GOME-2 - Sulfur Dioxide (SO2) - Global

Gridded Level 3 SO2 total column densities derived from the Metop/GOME-2-instruments. Volcanoes are the largest soures of SO2 in the atmosphere, depending on the erruption the Sulfurous compounds can be injected into stratosphere but in most cases it stays within the troposphere. Another important source is the coal combustion. Desulfurisation facilities within the power stations have reduced the sulfur emissions around the globe. In the stratosphere sulfur is a key component for building up aerosols, which reflect parts of the solar irradiation. The total SO2 column is retrieved from GOME solar back-scattered measurements in the ultraviolet wavelength region [using the DOAS method]. Depending on the plume SO2 can be a very strong absorber, because of that the ODAS retrieval might have some smaller issues, they can be reduced by choosing different wavelenght ranges depending on the signal. We apply three different fitting windows between 310 and 360nm. For the AMF, we assume a plumeheight of 6 km altitude. The Global Ozone Monitoring Experiment-2 (GOME-2) instrument continues the long-term monitoring of atmospheric trace gas constituents started with GOME / ERS-2 and SCIAMACHY / Envisat. Three instruments operate on board EUMETSAT's Meteorological Operational satellites MetOp-A, -B, and -C, launched in 2006, 2012, and 2018, respectively. GOME-2 measures a range of atmospheric trace constituents, with the emphasis on global ozone distribution. Furthermore, cloud properties and intensities of ultraviolet radiation are retrieved. These data are crucial for monitoring the atmospheric composition and the detection of pollutants. DLR generates operational GOME-2 / MetOp products in the framework of EUMETSAT's Satellite Application Facility on Atmospheric Composition Monitoring (AC-SAF).

GTS Bulletin: IUTE14 EDZW - Observational data (Binary coded) - BUFR (details are described in the abstract)

The IUTE14 TTAAii Data Designators decode as: T1 (I): Observational data (Binary coded) - BUFR T1T2 (IU): Upper air T1T2A1 (IUT): (used for satellite-derived sondes – see Note 3) A2 (E): 0° - 90°W tropical belt (Remarks from Volume-C: (CBS)SATELLITE RADIO OCCULTATION DATA)

GTS Bulletin: IUTF14 EDZW - Observational data (Binary coded) - BUFR (details are described in the abstract)

The IUTF14 TTAAii Data Designators decode as: T1 (I): Observational data (Binary coded) - BUFR T1T2 (IU): Upper air T1T2A1 (IUT): (used for satellite-derived sondes – see Note 3) A2 (F): 90°W - 180° tropical belt (Remarks from Volume-C: (CBS)SATELLITE RADIO OCCULTATION DATA)

GTS Bulletin: IUTA14 EDZW - Observational data (Binary coded) - BUFR (details are described in the abstract)

The IUTA14 TTAAii Data Designators decode as: T1 (I): Observational data (Binary coded) - BUFR T1T2 (IU): Upper air T1T2A1 (IUT): (used for satellite-derived sondes – see Note 3) A2 (A): 0° - 90°W northern hemisphere (Remarks from Volume-C: (CBS)SATELLITE RADIO OCCULTATION DATA)

GTS Bulletin: IUTK14 EDZW - Observational data (Binary coded) - BUFR (details are described in the abstract)

The IUTK14 TTAAii Data Designators decode as: T1 (I): Observational data (Binary coded) - BUFR T1T2 (IU): Upper air T1T2A1 (IUT): (used for satellite-derived sondes – see Note 3) A2 (K): 180° - 90°E southern hemisphere (Remarks from Volume-C: (CBS)SATELLITE RADIO OCCULTATION DATA)

Sentinel-5P TROPOMI – Aerosol Index (AI), Level 3 – Global

Aerosol Index (AI) as derived from TROPOMI observations. AI is an indicator for episodic aerosol plumes from dust outbreaks, volcanic ash, and biomass burning. The TROPOMI instrument onboard the Copernicus SENTINEL-5 Precursor satellite is a nadir-viewing, imaging spectrometer that provides global measurements of atmospheric properties and constituents on a daily basis. It is contributing to monitoring air quality and climate, providing critical information to services and decision makers. The instrument uses passive remote sensing techniques by measuring the top of atmosphere solar radiation reflected by and radiated from the earth and its atmosphere. The four spectrometers of TROPOMI cover the ultraviolet (UV), visible (VIS), Near Infra-Red (NIR) and Short Wavelength Infra-Red (SWIR) domains of the electromagnetic spectrum. The operational trace gas products generated at DLR on behave ESA are: Ozone (O3), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), Formaldehyde (HCHO), Carbon Monoxide (CO) and Methane (CH4), together with clouds and aerosol properties. This product is created in the scope of the project INPULS. It develops (a) innovative retrieval algorithms and processors for the generation of value-added products from the atmospheric Copernicus missions Sentinel-5 Precursor, Sentinel-4, and Sentinel-5, (b) cloud-based (re)processing systems, (c) improved data discovery and access technologies as well as server-side analytics for the users, and (d) data visualization services.

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