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Luftqualitätsdaten (Datenstrom E1a) - Validierte Einzelwerte 2015 (Datensatz)

Datenstrom E1a umfasst gemessene (Link zu Datenstrom D) Einzelwerte von gasförmigen Schadstoffen (z. B. Ozon, Stickstoffdixoid, Schwefeldioxid, Kohlenmonoxid), von partikelförmigen Schadstoffen (z.B. Feinstaub, Ruß, Gesamtstaub) und Staubinhaltsstoffen (z.B. Schwermetalle, PAK in PM10, PM2.5, TSP) sowie der Gesamtdeposition (BULK), der nassen Deposition und meteorologische Messgrößen (z.B. Temperatur, Windgeschwindigkeit, Luftdruck), für die eine Datenbereitstellungspflicht besteht. Der Bericht umfasst zudem die Datenqualitätsziele (Messunsicherheit, Mindestzeiterfassung (time coverage) erfüllt ja/nein, Mindestdatenerfassung (data capture) erfüllt ja/nein) und Informationen zu Konzentrationswerten die natürlichen Quellen und der Ausbringung von Streusand und –salz zuzurechnen sind (Konzentrationswerte ohne etwaige Korrekturabzüge).

Luftqualitätsdaten (Datenstrom E1b) - modellierte und geschätzte Einzelwerte 2023 (Datensatz)

Datenstrom E1b umfasst modellierte und geschätzte (Link zu Datenstrom D) Einzelwerte von gasförmigen Schadstoffen (z. B. Ozon, Schwefeldioxid, Kohlenmonoxid), von partikelförmigen Schadstoffen (z.B. Feinstaub) und Staubinhaltsstoffen (z.B. Schwermetalle, PAK in PM10). Der Bericht umfasst zudem Informationen über die Datenqualitätsziele.

Diskontinuierliche Luftqualitätsdaten im Land Brandenburg

Die im Land Brandenburg diskontinuierlich über Probenahme und Laboranalytik ermittelten Luftqualitätswerte werden in Exceltabellen erfasst, archiviert und fortgeschrieben. Die Überwachung der Luftqualität entsprechend gesetzlich vorgegebener Grenzwerte wird dadurch ergänzend gewährleistet.

REVEALS reconstruction of past vegetation cover with optimized RPP values for European samples

This data set presents the reconstructed vegetation cover for 1451 European sites based on harmonized pollen data from the data set LegacyPollen 2.0 and optimized RPP values. Sugita's REVEALS model (2007) was applied to all pollen records using REVEALSinR from the DISQOVER package (Theuerkauf et al. 2016). Pollen counts were translated into vegetation cover by taking into account taxon-specific pollen productivity and fall speed. Additionally, relevant source areas of pollen were also calculated using the aforementioned taxon-specific parameters and a gaussian plume model for deposition and dispersal and forest cover was reconstructed. In this optimized reconstruction, relative pollen productivity estimates for the ten most common taxa were first optimized by using reconstructed tree cover from modern pollen samples and LANDSAT remotely sensed tree cover (Sexton et al. 2013) for Europe. Values for non-optimized taxa for relative pollen productivity and fall speed were taken from the synthesis from Wiezcorek and Herzschuh (2020). The average values from all Northern Hemisphere values were used where taxon-specific continental values were not available. We present tables with optimized reconstructed vegetation cover for all records in Europe. As further details we list a table with the taxon-specific parameters used and a list of parameters adjusted in the default version of REVEALSinR.

Luftqualitätsdaten (Datenstrom G) - Erreichung der Umweltziele 2023 (Datensatz)

Datenstrom G bildet die formale gebietsbezogene Beurteilung der Luftqualität in Bezug auf Grenz- und Zielwerte ab, ggf. unter Berücksichtigung gewährter Fristverlängerung und bereinigt um Beiträge aus natürlichen Quellen und der Ausbringung von Streusand und –salz im Winterdienst.

Luftqualitätsdaten (Datenstrom E1a) - Validierte Einzelwerte 2022 (Datensatz)

Datenstrom E1a umfasst gemessene (Link zu Datenstrom D) Einzelwerte von gasförmigen Schadstoffen (z. B. Ozon, Stickstoffdixoid, Schwefeldioxid, Kohlenmonoxid), von partikelförmigen Schadstoffen (z.B. Feinstaub, Ruß, Gesamtstaub) und Staubinhaltsstoffen (z.B. Schwermetalle, PAK in PM10, PM2.5, TSP) sowie der Gesamtdeposition (BULK), der nassen Deposition und meteorologische Messgrößen (z.B. Temperatur, Windgeschwindigkeit, Luftdruck), für die eine Datenbereitstellungspflicht besteht. Der Bericht umfasst zudem die Datenqualitätsziele (Messunsicherheit, Mindestzeiterfassung (time coverage) erfüllt ja/nein, Mindestdatenerfassung (data capture) erfüllt ja/nein) und Informationen zu Konzentrationswerten die natürlichen Quellen und der Ausbringung von Streusand und –salz zuzurechnen sind (Konzentrationswerte ohne etwaige Korrekturabzüge).

Schwerpunktprogramm (SPP) 1158: Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; Bereich Infrastruktur - Antarktisforschung mit vergleichenden Untersuchungen in arktischen Eisgebieten, Investigation of mechanism driving glacial/interglacial variability in stratification/mixing and biological productivity of the Pacific Southern Ocean and potential implications on air-sea CO2-exchange: synthesis of climate and ocean biogeochemical modeling with paleoceanographic reconstructions

Atmospheric CO2 concentrations present a repetitive pattern of gradual decline and rapid increase during the last climate cycles, closely related to temperature and sea level change. During the Last Glacial Maximum (LGM; 23-19 kyr BP), when sea level was ca. 120 m below present, the ocean must have stored additionally about 750 Gt carbon. There is consensus that the Southern Ocean represents a key area governing past and present CO2 change. The latter is not only of high scientific but also of socio-economic and political concern since the Southern Ocean provides the potential for an efficient sink of anthropogenic carbon. However, the sensitivity of this carbon sink to climate-change induced reorganizations in wind patterns, ocean circulation, stratification, sea ice extent and biological production remains under debate. Models were not yet able to reproduce the necessary mechanisms involved, potentially due to a lack of the dynamic representation/resolution of atmospheric and oceanic circulation as well as missing carbon cycling. Data on past Southern Ocean hydrography and productivity are mainly from the Atlantic sector, thus do not adequately document conditions in the Pacific sector. This sector is not only the largest part of the Southern Ocean, but it also represents the main drainage area of the marine-based West Antarctic Ice Sheet (WAIS). In the proposed study we aim to generate paleo-data sets with a newly established proxy method from sediment core transects across the Pacific Southern Ocean. This will enhance the baselines for the understanding and modeling of the Southern Ocean's role in carbon cyling, i.e. ocean/atmosphere CO2 exchange and carbon sequestration. It will also allow insight into the response of the WAIS to past warmer than present conditions. Paired isotope measurements (oxygen, silicon) will be made on purified diatoms and radiolarians to describe glacial/interglacial contrasts in physical and nutrient properties at surface and subsurface water depth. This will be used to test (i) the impact of yet unconsidered dust-borne micronutrient deposition on the glacial South Pacific on shifts of primary productivity, Si-uptake rates and carbon export, (ii) the 'silicic-acid leakage' hypothesis (SALH) and (iii) the formation and extent of surface water stratification. Diatom and radiolarian oxygen isotopes will provide information on the timing of surface ocean salinity anomalies resulting from WAIS melt water. Climate model simulations using a complex coupled atmosphere ocean general circulation model (AOGCM) in combination with a sophisticated ocean biogeochemical model including Si-isotopes will be used for comparison with the paleo records. The analysis will cover spatial as well as temporal variability patterns of Southern Ocean hydrography, nutrient cycling and air-sea CO2-exchange. With the help of the climate model we aim to better separate and statistically analyse the individual impacts of ocean circulation and bio

Luftqualitätsdaten (Datenstrom B) - Beurteilungsgebiete 2018 (Datensatz)

Datenstrom B umfasst alle Informationen zu den Beurteilungsgebieten – wie Name, Gebietscode, Abgrenzung, Einwohnerzahl, Historie, Schadstoffe und Schutzziele, Fristverlängerung.

Messungen in der Außenluft (Staub, Gas)

Diskontinuierliche Messungen von gas- und staubförmigen Bestandteilen in der Außenluft. Depositionsmessungen, Untersuchung von Hausstaubproben, jährlich wechselnde Messprogramme in unterschiedlichen Gebieten von Hamburg.

Global database of sedimentary excess thorium-234 (Th-234) in and near submarine canyons

This global compilation was generated to explore the application of thorium-234 (234Th) as a tracer for recent sedimentation in submarine canyons. Submarine canyons are located along the continental margins, including the shelf regions, which are disproportionally relevant for the carbon cycle and other essential biogeochemical processes. These geomorphological features can act as funnels for particles and represent a strong connection between land and the open ocean. The continental margins encompass dynamic environments, granting the necessity to use tracers capable of quantifying short-term events. 234Th is a particle reactive radionuclide that gets scavenged onto particles in the water column and, due to its short half-life of 24.1 days, it allows estimating the magnitude of recently deposited sediment on the seabed over the previous ~4 months. Excess 234Th (234Thxs) with respect to 234Th in secular equilibrium with its parent nuclide uranium-238 can be used to calculate excess 234Th inventories as a proxy of recent sediment deposition (Aller and Cochran, 1976). Moreover, the vertical profile of 234Thxs in surface sediment also serves for estimation of mixing rates when sedimentation rates are sufficiently low. This has advantages over the classic and extensively used lead-210 dating method with a decadal integration period (Arias-Ortiz et al., 2018), since the relatively short time scale of 234Th can match the occurrence of recent short deposition events, thus revealing the impacts of potential recent riverine runoff, trawling-derived deposition or phytoplankton blooms, among others. To compile these data we conducted a search across Google Scholar (last accessed: 03-Sep-2025 ) for periods encompassing 1979-2025, and obtained 123 search results using the terms: (Excess 234Th OR Excess 234 Th OR Excess Th-234 OR Excess Thorium-234) AND (submarine canyon OR canyon OR off-shelf) AND (sediment core OR sediment samples OR core OR gamma spectrometry OR gamma spectroscopy OR gamma counting OR radiochemical analysis OR radioisotopic). After thorough inspection of the publications, those reporting sedimentary 234Th data in canyon environments were selected, resulting in a compilation of data from a total of 26 publications from 20 different canyons. Data on 234Thxs parameters, sampling methodology, and contextual information of sediment cores obtained in submarine canyon environments were carefully extracted using the information given in the main text, tables, figures, and supplementary files. Latitude, longitude and sampling dates were assigned to the midpoint or the sampling month when not explicitly stated. Gamma spectrometry was applied as the counting method, with one exception measured by beta counting. Empty cells represent missing data. In 12 studies, data was also provided from the shelf, slope or abyssal plain near the canyon. The compilation includes surface 234Thxs activities, 234Thxs penetration depths, 234Thxs inventories and mixing rates (Db) from canyon studies with coring sites inside canyons, spanning a depth range from 120 to 4280 m and, additionally, near those canyons. In canyons, the most frequently provided parameter is the surface 234Thxs activity (19 of 26 studies) ranging from 20 to 4040 Bq kg-1with a mean value of 520 Bq kg-1. 10 of 26 studies reported 234Thxs inventories, showing high variability with a range of values between 10 and 50700 Bq m-2 and a mean value of 2860 Bq m-2. 10 of 26 studies reported (or provide enough data for extraction of) 234Thxs penetration depths (mean of 2 cm, ranging from 0.4 to 24 cm). The least frequently reported 234Thxs parameter is mixing rate (6 of 26 studies) yet encompassing a large range of values from 0.2 to 68.7 cm2 y-1 with a mean of 6.9 cm2 y-1.This database provides an overview of the variability of recent sediment deposition patterns as well as other sedimentary parameters derived from 234Th measurements across canyons distributed globally. Advancing the characterization of short-term sedimentary signatures using 234Th is promising and relevant in canyon environments, which represent a crucial link in the land-ocean interface.

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