ALBERT

Description: The data were taken to obtain information on soil and vegetation information at ground surface. That included (1) measurements of soil moisture, soil temperature and surface temperature of a 40 m x 40 m stubble field west of the flux tower station Hordorf (Central Germany); (2) the measurements of soil moisture, soil temperature and surface temperature as well as spectra taken with an Analytical Spectral Devices (ASD) field spectrometer of a bare soil reference area close to flux tower station: (3) measurements of soil moisture, soil temperature, field spectra with ASD field spectrometer, height of plant height, chlorophyll content and pheno-code on crop fields (sugar beet, potatoes) close to flux tower station and (4) the available ASD data files. Alle data points are merged with its GPS coordinates.The time base is CET, except of the ASD field spectra, where CEST was used.

Description: The heat waves and droughts of 2018 / 2019 and in 2020 have had a devastating impact on the functioning of ecosystems and have led to an increasing vulnerability beyond the duration of heat waves (e.g. degradation and increased erosion, reduced carbon uptake by vegetation, modulated energy balance). Such impacts also include loss of agricultural production. A better understanding of the progression and the consequences of heatwaves and droughts is essential for the development and improvement of adaptation and protection measures. The airborne remote sensing event campaign performed in the agricultural area of the 'Magdeburger Boerde' in Central Germany aimed at providing remote sensing data sets from different platforms to derive high quality data for improving the understanding of influences and lag effects on hydrologic, biological/biogeochemical and atmospheric processes induced by the summer drought 2020. Multiple recurrences of drought periods in previous years may have led to irreversible changes in structure, composition and functioning of terrestrial ecosystems reducing ecosystem services and resilience. A second goal of the campaign with different available sensors in terms of an inter-calibration is to provide comprehensive and reliable data to ensure future campaign inter-comparability. The acquired data set includes airborne remote sensing data covering variable land cover types obtained by optical, thermal and multispectral sensors (see supplementary material: Schulz et al. (2020), Milewski et al. (2021) ). Furthermore, extensive data from various ground-truthing activities are available such as field spectrometer measurements, soil temperature mapping and soil moisture mapping via Cosmic Ray rovering and TDR-measurements. To complete the data set, micrometeorological time series, soil samples and vegetation characteristics were also taken.

Description: Remineralization of organic matter in reactive marine sediments releases nutrients and dissolved organic matter (DOM) into the ocean. Here we focused on the molecular-level characterization of DOM by high-resolution Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) in sediment pore waters and bottom waters from contrasting redox regimes in the northern Black Sea with particular emphasis on nitrogen-bearing compounds to derive an improved understanding of the molecular transformations involved in nitrogen release. The number of nitrogen-bearing molecules is generally higher in pore waters than in bottom waters. This suggests intensified degradation of nitrogen-bearing precursor molecules such as proteins in anoxic sediments: No significant difference was observed between sediments deposited under oxic vs anoxic conditions (average O/C ratios of 0.55) suggesting that the different organic matter quality induced by contrasting redox conditions does not impact protein diagenesis in the subseafloor. Compounds in the pore waters were on average larger, less oxygenated, and had a higher number of unsaturations. Applying a mathematical model, we could show that the assemblages of nitrogen-bearing molecular formulas are potential products of proteinaceous material that was transformed by the following reactions: (a) hydrolysis and deamination, both reducing the molecular size and nitrogen content of the products and intermediates; (b) oxidation and hydration of the intermediates; and (c) methylation and dehydration.

Description: The geological map shows the northeastern part of the polyphase deformed Sivorg Terrane in the Heimefrontfjella/Dronning Maud Land. The basement was affected by late Mesoproterozoic and Cambrian deformation and metamorphism. Geological mapping was carried out during the Antarctic Expedition 2000/01 of the Alfred Wegener Institute for Polar and Marine Research. Topographic data were obtained through stereoscopic aerial photo interpretation. The photogrammetric photo flights were undertaken in 1986 by the Institut für Angewandte Geodäsie, Frankfurt/M. Horizontal ground control points required for aerial photo interpretation were determined by means of Doppler satellite observation during the 2nd German Neuschwabenland Expedition 1985/86. Vertical ground control points were taken from unpublished map drafts at 1:100 000 scale by Norsk Polarinstitutt, Oslo. The elevation above mean sea level was transferred to Heimefrontfjella barometrically. For this reason assertions concerning the absolute elevation (referred to sea level) are uncertain. Contours and spot heights presented on the map were obtained from the photogrammetric evaluation of the photography taken in 1986; relative elevation data (height differences) are accurate to approximately ±10 m. Published by Fachbereich Geowissenschaften, Universität Bremen & Geologisches Institut, RWTH Aachen.

Description: The geological map shows the border area between the polyphase (late Mesoproterozoic and Cambrian) deformed Sivorg Terrane and the Kottas Terrane where a pervasive Cambrian tectonometamorphic overprints is lacking. Geological revision mapping was carried out during the Antarctic Expedition 2000/01 of the Alfred Wegener Institute for Polar and Marine Research. Topographic data were obtained through stereoscopic aerial photo interpretation. The photogrammetric photo flights were undertaken in 1986 by the Institut für Angewandte Geodäsie, Frankfurt. Horizontal ground control points required for aerial photo interpretation were determined by means of Doppler satellite observation during the 2nd German Neuschwabenland Expedition 1985/86. Vertical ground control points were taken from unpublished map drafts at 1:100 000 scale by Norsk Polarinstitutt, Oslo. The elevation above mean sea level was transferred to Heimefrontfjella barometrically. For this reason assertions concerning the absolute elevation (referred to sea level) are uncertain. Contours and spot heights presented on the map were obtained from the photogrammetric evaluation of the photography taken in 1986; relative elevation data (height differences) are accurate to approximately ±10 m. Published by Geologisches Institut der RWTH Aachen & Fachbereich Geowissenschaften, Bremen.