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Sentinel-5P TROPOMI – Cloud Fraction (CF), Level 3 – Global

Global Cloud Fraction (CF). Clouds play a crucial role in the Earth's climate system and have significant effects on trace gas retrievals. The radiometric cloud fraction is retrieved from the UV using the OCRA algorithm. Daily observations are binned onto a regular latitude-longitude grid. The TROPOMI instrument aboard the SENTINEL-5P space craft is a nadir-viewing, imaging spectrometer covering wavelength bands between the ultraviolet and the shortwave infra-red. TROPOMI's purpose is to measure atmospheric properties and constituents. It is contributing to monitoring air quality and providing critical information to services and decision makers. The instrument uses passive remote sensing techniques by measuring the Top Of Atmosphere (TOA) 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, allowing operational retrieval of the following trace gas constituents: Ozone (O3), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), Formaldehyde (HCHO), Carbon Monoxide (CO) and Methane (CH4). Within the INPULS project, innovative algorithms and processors for the generation of Level 3 and Level 4 products, improved data discovery and access technologies as well as server-side analytics for the users are developed.

Sentinel-5P TROPOMI – Cloud-Top Height (CTH), Level 3 – Global

Global Cloud-Top Height (CTH) as derived from the Sentinel-5P/TROPOMI instrument. Clouds play a crucial role in the Earth's climate system and have significant effects on trace gas retrievals. The cloud-top height is retrieved from the O2-A band using the ROCINN algorithm. Daily observations are binned onto a regular latitude-longitude grid. The TROPOMI instrument aboard the SENTINEL-5P space craft is a nadir-viewing, imaging spectrometer covering wavelength bands between the ultraviolet and the shortwave infra-red. TROPOMI's purpose is to measure atmospheric properties and constituents. It is contributing to monitoring air quality and providing critical information to services and decision makers. The instrument uses passive remote sensing techniques by measuring the Top Of Atmosphere (TOA) 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, allowing operational retrieval of the following trace gas constituents: Ozone (O3), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), Formaldehyde (HCHO), Carbon Monoxide (CO) and Methane (CH4). Within the INPULS project, innovative algorithms and processors for the generation of Level 3 and Level 4 products, improved data discovery and access technologies as well as server-side analytics for the users are developed.

Pressemitteilung Nr. 394 vom 4. November 2025 6,5 Millionen Liter wassergefährdende Stoffe im Jahr 2024 bei Unfällen ausgetreten

Presse 6,5 Millionen Liter wassergefährdende Stoffe im Jahr 2024 bei Unfällen ausgetreten Seite teilen Pressemitteilung Nr. 394 vom 4. November 2025 Ausgetretene Schadstoffmenge gegenüber dem Vorjahr um mehr als zwei Drittel verringert Zahl der Unfälle auf niedrigstem Stand seit 2010 2,0 Millionen Liter ausgetretene Schadstoffe in der Umwelt verblieben WIESBADEN – Im Jahr 2024 sind in Deutschland bei Unfällen rund 6,5 Millionen Liter wassergefährdende Stoffe unkontrolliert in die Umwelt ausgetreten, das waren 69,1 % weniger als im Vorjahr (2023: 21,0 Millionen Liter). Wie das Statistische Bundesamt (Destatis) weiter mitteilt, konnten etwa 2,0 Millionen Liter (30,7 %) der ausgetretenen Stoffe nicht wiedergewonnen werden und verblieben dauerhaft in der Umwelt. Im Jahr 2023 waren es noch rund 3,3 Millionen Liter. Starke Schwankungen in der Zeitreihe sind nicht ungewöhnlich, da die ausgetretenen und in der Umwelt verbliebenen Schadstoffmengen von der Art und Schwere der Unfälle abhängig sind. Rund ein Drittel der im Jahr 2024 freigesetzten Schadstoffe gehen auf nur zwei Unfälle zurück. Die Gesamtzahl der Unfälle mit wassergefährdenden Stoffen sank mit 1 542 um 17,8 % gegenüber dem Vorjahr und bestätigt damit den Abwärtstrend bei den Unfallzahlen. 41 800 Liter „stark wassergefährdende“ Stoffe mit Schadenspotenzial Wassergefährdende Stoffe werden nach ihrem Schadenspotenzial als "allgemein wassergefährdend" deklariert oder in eine von drei Wassergefährdungsklassen (WGK) eingeteilt. Unter den im Jahr 2024 insgesamt 2,0 Millionen Litern dauerhaft in der Umwelt verbliebenen Schadstoffen entfiel der größte Anteil mit 1,6 Millionen Litern (78,9 %) auf "allgemein wassergefährdende" Stoffe. Mit 1,4 Millionen Litern waren das insbesondere Jauche, Gülle und Silagesickersaft. 42 100 Liter (2,1 %) bei Unfällen ausgetretene "schwach wassergefährdende" Stoffe (WGK 1) konnten nicht wiedergewonnen werden. Zu dieser Wassergefährdungsklasse zählen Stoffe wie zum Beispiel Ethanol oder Natronlauge. Weitere 259 000 Liter (13,0 %) in der Umwelt verbliebene Schadstoffe waren "deutlich wassergefährdende" Stoffe (WGK 2). In dieser Kategorie sind Mineralölprodukte wie Heizöl oder Dieselkraftstoff eingruppiert. Die gefährlichsten Stoffe sind die "stark wassergefährdenden" Stoffe (WGK 3), darunter beispielsweise Quecksilber oder Benzin. Im Jahr 2024 konnten 41 800 Liter (2,1 %) solcher Schadstoffe nicht wiedergewonnen werden und verblieben mit potenziellen Schäden in der Umwelt. Die restlichen Stoffmengen (3,9 %) konnten nicht eingestuft werden. 718 Gewässerverunreinigungen durch 610 Unfälle Im Jahr 2024 ereigneten sich 610 Unfälle, bei denen mindestens ein Gewässer direkt von freigesetzten Schadstoffen verunreinigt worden ist. In 359 Fällen gelangten Schadstoffe in ein Oberflächengewässer, beispielsweise einen Fluss oder einen See. In 321 Fällen war die Kanalisation betroffen. Insgesamt 35 Mal wurde das Grundwasser verunreinigt und in drei Fällen unmittelbar die Wasserversorgung. Insgesamt wurde demnach durch 610 Unfälle 718 Mal ein Gewässer verunreinigt, da bei 107 Unfällen mehrere Gewässerarten gleichzeitig betroffen waren. Methodische Hinweise: Die Ergebnisse basieren ausschließlich auf Daten zu Unfällen in Deutschland. Unfälle in Nachbarstaaten, die sich zum Beispiel auf deutsche Gewässer auswirken, werden nicht berücksichtigt. Verunreinigungen infolge von illegaler Entsorgung wassergefährdender Stoffe sind zudem keine Unfälle im Sinne der Erhebung. Bei insgesamt sechs Unfällen konnte die freigesetzte Menge wassergefährdender Stoffe und somit auch die wiedergewonnene bzw. in der Umwelt verbleibende Menge durch die Auskunftspflichtigen nicht betitelt werden. Entsprechend sind diese Unfälle in den Unfallzahlen aber ohne Mengenangaben berücksichtigt. Weitere Informationen: Weitere Ergebnisse zum Berichtsjahr 2024 sind in der Datenbank GENESIS- Online (Tabellen 32311-0001 bis 32311-0006 ) sowie auf der Themenseite " Wasserwirtschaft " im Internetangebot des Statistischen Bundesamtes verfügbar. +++ Daten und Fakten für den Alltag: Folgen Sie unserem WhatsApp-Kanal . +++ #abbinder-75-pm.l-content-wrapper { padding-top:30px; } #abbinder-75-pm .column-logo { width: 130px; height: 130px; } #abbinder-75-pm .picture .wrapper img { max-width: 100px; max-height: 100px; height: 100px; width: 100px; } #abbinder-75-pm .picture { margin-left:0px; padding:0 10px; } @media only screen and (min-width: 1024px) { #abbinder-75-pm .picture { margin-left:0px;padding:0 20px; } } Kontakt für weitere Auskünfte Statistiken der Wasserwirtschaft und der klimawirksamen Stoffe Telefon: +49 611 75 8950 Zum Kontaktformular Zum Thema Wasserwirtschaft Klima

Sentinel-5P TROPOMI Surface Nitrogendioxide (NO2), Level 4 – Regional (Germany and neighboring countries)

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 displays the Nitrogen Dioxide (NO2) near surface concentration for Germany and neighboring countries as derived from the POLYPHEMUS/DLR air quality model. Surface NO2 is mainly generated by anthropogenic sources, e.g. transport and industry. POLYPHEMUS/DLR is a state-of-the-art air quality model taking into consideration - meteorological conditions, - photochemistry, - anthropogenic and natural (biogenic) emissions, - TROPOMI NO2 observations for data assimilation. This Level 4 air quality product (surface NO2 at 15:00 UTC) is based on innovative algorithms, processors, data assimilation schemes and operational processing and dissemination chain developed in the framework of the INPULS project. The DLR project INPULS 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.

Sentinel-5P TROPOMI - Aerosol Optical Depth (AOD), Level 3 - Global

Aerosol optical depth (AOD) as derived from TROPOMI observations. AOD describes the attenuation of the transmitted radiant power by the absence of aerosols. Attenuation can be caused by absorption and/or scattering. AOD is the primary parameter to evaluate the impact of aerosols on weather and climate. Daily AOD observations are binned onto a regular latitude-longitude grid. 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.

Sentinel-5P TROPOMI – Cloud Optical Thickness (COT), Level 3 – Global

This product displays the Cloud Optical Thickness (COT) around the globe. Clouds play a crucial role in the Earth's climate system and have significant effects on trace gas retrievals. The cloud optical thickness is retrieved from the O2-A band using the ROCINN algorithm. The TROPOMI instrument aboard the SENTINEL-5P space craft is a nadir-viewing, imaging spectrometer covering wavelength bands between the ultraviolet and the shortwave infra-red. TROPOMI's purpose is to measure atmospheric properties and constituents. It is contributing to monitoring air quality and providing critical information to services and decision makers. The instrument uses passive remote sensing techniques by measuring the Top Of Atmosphere (TOA) 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, allowing operational retrieval of the following trace gas constituents: Ozone (O3), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), Formaldehyde (HCHO), Carbon Monoxide (CO) and Methane (CH4). Within the INPULS project, innovative algorithms and processors for the generation of Level 3 and Level 4 products, improved data discovery and access technologies as well as server-side analytics for the users are developed.

Sentinel-5P TROPOMI – Ozone (O3), Level 3 – Global

Ozone vertical column density in Dobson Units as derived from Sentinel-5P/TROPOMI observations. The stratospheric ozone layer protects the biosphere from harmful solar ultraviolet radiation. Ozone in troposphere can pose risks to the health of humans, animals, and vegetation. The TROPOMI instrument aboard the SENTINEL-5P space craft is a nadir-viewing, imaging spectrometer covering wavelength bands between the ultraviolet and the shortwave infra-red. TROPOMI's purpose is to measure atmospheric properties and constituents. It is contributing to monitoring air quality and providing critical information to services and decision makers. The instrument uses passive remote sensing techniques by measuring the Top Of Atmosphere (TOA) 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, allowing operational retrieval of the following trace gas constituents: Ozone (O3), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), Formaldehyde (HCHO), Carbon Monoxide (CO) and Methane (CH4). Daily observations are binned onto a regular latitude-longitude grid. Within the INPULS project, innovative algorithms and processors for the generation of Level 3 and Level 4 products, improved data discovery and access technologies as well as server-side analytics for the users are developed.

Sentinel-5P TROPOMI - Aerosol Single-Scattering Albedo (ASSA), Level 3 - Global

Aerosol single-scattering albedo (ASSA) as derived from TROPOMI observations. ASSA is a measure of how much light is scattered by aerosols compared to how much is absorbed. It is important for understanding the impact of aerosols on climate and radiative forcing. ASSA is unitless; a value of unity implies that extinction is completely due to scattering; conversely, a single-scattering albedo of zero implies that extinction is completely due to absorption. Daily ASSA observations are binned onto a regular latitude-longitude grid. 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.

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.

Sentinel-5P TROPOMI – Aerosol Layer Height (ALH), Level 3 – Global

Aerosols are an indicator for episodic aerosol plumes from dust outbreaks, volcanic ash, and biomass burning. Daily observations are binned onto a regular latitude-longitude grid. The Aerosol layer height is provided in kilometres. 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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