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METOP GOME-2 - Formaldehyde (HCHO) - Global

Gridded Level 3 formaldehyde (HCHO) column densities derived from the Metop/GOME-2-instruments. In the troposphere HCHO is a short-lived atmospheric constituent caused by incomplete combustion processes, e.g. fossil fuel consumption or biomass buring or it is build by atmospheric chemical species from other volatile organic component (VOCs). It plays an important role in the build up of tropospheric ozone. The total HCHO column is retrieved from GOME solar back-scattered measurements in the UV wavelength region 328.5nm to 346nm [using the DOAS method]. In addition, an air mass factor based on monthly climatological HCHO profiles is considered. 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).

Laserscanaufnahmen des Freistaates Sachsen ab 2005

Der Datensatz enthält die Grenzen der Laserscanaufnahmen seit 2005.

Combined carbohydrates, organic carbon and total aerosol mass concentrations in size-resolved aerosol particles sampled from the Arctic in 2017

Size-resolved aerosol particles were collected in the Arctic during the PS106 campaign (2017). For the collection of the aerosol particles, a five-stage low-pressure BERNER impactor was used. The size of the particles ranged between 50 nm and 10 µm. Sampling was conducted on board the German research vessel Polarstern. These aerosol particle samples were characterized on total aerosol mass concentration, combined carbohdrates (CCHO) and organic carbon (OC). Sampling altitude: ca. 25 m above sea level.

Laserpunkte

Laserpunkte sind dreidimensionale Punktkoordinaten (Rechtswert, Hochwert, Höhe) der gemessenen Reflektionen aus der Airborne Laserscanning Befliegung, wobei die Geländeoberfläche mit einem Laserstrahl abgetastet wird. Die Messpunkte des Lasers fallen dabei nicht nur auf die Geländeoberfläche, sondern treffen auch auf Objekte, die sich darüber befinden wie z. B. Bäume oder Gebäude. Durch geeignete Filtermethoden wird die Punktwolke automatisch in Punktklassen Bodenpunkte, Objektpunkte, nicht zuzuordnende Punkte in Bodennähe und Gebäudepunkte unterteilt. Neben den aufgelisteten Referenzsystemen sind die Laserpunkte in den Systemen ETRS89 / UTM32 mit Zonenkennzahl (EPSG:4647) und ETRS89 / UTM33 mit Zonenkennzahl (EPSG:5650) verfügbar.

Combined carbohydrates, dissolved free carbohydrates and pH in Arctic fog water sampled during PS106

Fog water samples were collected in the Arctic during the PS106 campaign (2017). Sampling was conducted on board the German research vessel Polarstern. These fog water samples were measured on pH, combined carbohydrates (CCHO) and dissolved free carbohydrates (DFCHO). Sampling altitude: ca. 21 m above sea level.

Optimierung des GeoSCIA-Missionskonzeptes: 'GeoSCIA Improvement Study'

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