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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: 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: 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: 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)

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)

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).

METOP GOME-2 - Ozone (O3) - Global

Gridded Level 3 ozone column densities derived from the Metop/GOME-2-instruments. In the stratosphere – where the majority of the total O3 amount is located - O3 plays an vital role for the UV protection. In the troposphere O3 is generated by chemical processes caused by natural and anthropogenic emission of NO2 and volatile organic components (VOCs) (e.g. HCHO). Direct exposure to O3 is harmfull for humans and our environment. The total O3 column is retrieved from GOME solar back-scattered measurements in the uv wavelength region 325-335nm [using the DOAS method]. To determine the AMF an iterative process is applied, the assumed profile depends on the latitude, month, but also on the total column. 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).

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.

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