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La Tephra de Bag: une retombée volcanique à large dispersion dans le loess pléistocène d'Europe centrale
(E&G – Quaternary Science Journal; Vol.41, No. 1)Mehrere Eigenschaften (Korngröße, Mineralspektrum, chemische Zusammensetzung von Gesamtproben und von Klinopyroxenen) einer Tephralage, die in sieben Lößprofilen von Ungarn und der Tschechoslovakei vorkommt, wurden untersucht. ... -
Laboratory and field investigations on freeze and gravity core sampling and assessment of coring disturbances with implications on gas bubble characterization†
; ; ; (Limnology and Oceanography: Methods, 2019)
The quantification of greenhouse gas emissions from aquatic ecosystems requires knowledge about the spatial and temporal dynamics of free gas in sediments. Freezing the sediment in situ offers a promising method for obtaining ... -
Laboratory Assessment of the Impact of Chemical Oxidation, Mineral Dissolution, and Heating on the Nitrogen Isotopic Composition of Fossil‐Bound Organic Matter
; ; ; ; ; ; ; ; ; ; ; (Geochemistry, Geophysics, Geosystems, 2022-08-19)
Fossil‐bound organic material holds great potential for the reconstruction of past changes in nitrogen (N) cycling. Here, with a series of laboratory experiments, we assess the potential effect of oxidative degradation, ... -
Laboratory Study on Fluid-Induced Fault Slip Behavior: The Role of Fluid Pressurization Rate
; ; ; ; ; (Geophysical Research Letters, 2020)
Understanding the physical mechanisms governing fluid-induced fault slip is important for improved mitigation of seismic risks associated with large-scale fluid injection. We conducted fluid-induced fault slip experiments ... -
Laboratory testing and numerical simulation of properties and thermal-induced cracking of Eibenstock granite at elevated temperatures
; ; ; (Acta Geotechnica, 2020-02-11)
The knowledge about thermo-mechanical properties of granite is still limited to some extent. Individual measurements are necessary to obtain reliable properties for specific granite types. A reliable numerical model of ... -
Laboruntersuchungen zur Freisetzung von Unat aus einem Gestein unter oxischen naturnahen Bedingungen
; Sonnefeld, Jürgen; Sauter, Martin (Grundwasser, 2005)
The effects of carbonate concentration and the presence of iron hydroxide phases on uranium release into the environment were investigated under oxic conditions and in the pH range from 6 to 9. For this purpose not-shaken ... -
Laboruntersuchungen zur Freisetzung von Unat aus einem Gestein unter oxischen naturnahen Bedingungen
; Sonnefeld, Jürgen; Sauter, Martin (Grundwasser, 2005)
Im Labor wurden verschiedene Größen (pH-Wert, HCO3 --Gehalt, Präsenz von Fe(OH)3) untersucht, von denen angenommen werden konnte, dass sie die umweltrelevante Freisetzung von Uran aus Gesteinen (z.B. Haufwerken, Halden, ... -
LAC 2019 : 25th Latin-American Colloquium of Geosciences : program and abstracts : Universität Hamburg, Germany September 18-21, 2019
(TERRA NOSTRA - Schriften der GeoUnion Alfred-Wegener-Stiftung; 2019,1)This volume contains the program, abstracts and field guides of the 25th Latin-American Colloquium of Geosciences (LAC). In the tradition of the holistic approach of Alexander von Humboldt in approaching complex research ... -
Lacertilia aus der unteren Kreide von Uña und Galve (Spanien) und Anoual (Marokko)
(Selbstverlag Fachbereich Geowissenschaften, FU Berlin, 1994)In den Unterkretazischen Lokalitäten Una und Galve (Spanien) und Anoual (Marokko) finden sich neben zahlreichen weiteren Wirbeltiergruppen auch Lacertilier-Reste. In den limnischen Braunkohlen des Ober-Barremium von Una ... -
Lagrangian Analysis of Moisture Sources of Precipitation in the Tianshan Mountains, Central Asia
; ; (Earth and Space Science, 2022-06-30)
The moisture sources of precipitation in the Tianshan Mountains, one of the regions with the highest precipitation in Central Asia during 1979–2017 are comprehensively and quantitatively summarized by using a Lagrangian ... -
Lagrangian Coherent Structures and Vortex Formation in High Spatiotemporal‐Resolution Satellite Winds of an Atmospheric Kármán Vortex Street
; ; ; ; (Journal of Geophysical Research: Atmospheres, 2021-10-06)
Recent advances in geostationary imaging have enabled the derivation of high spatiotemporal‐resolution cloud‐motion winds for the study of mesoscale unsteady flows. Due to the general absence of ground truth, the quality ... -
Lagrangian description of the atmospheric flow from Eulerian tracer advection with relaxation
; (Quarterly Journal of the Royal Meteorological Society, 2023-04-24)
Abstract The Lagrangian representation of fluid flows offers a natural perspective to study many ...
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Lake Thetis domal microbialites - A complex framework of cacified biofilms and organomicrites (Cervantes, Western Australia)
; Paul, Josef; ; Hause-Reitner, Dorothea (Globale und regionale Steuerungsfaktoren biogener Sedimentation / Teil 1: Riff-EvolutionGlobale und regionale Steuerungsfaktoren biogener Sedimentation / Teil 1: Riff-Evolution, 1996)
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Lake Van, Eastern Anatolia, Hydrochemistry and History
(Aquatic GeochemistryAquatic Geochemistry, 2008)Saline, 450-m-deep Lake Van (Eastern Anatolia, Turkey) is, with 576 km3, the third largest closed lake on Earth and its largest soda lake. In 1989 and 1990, we investigated the hydrochemistry of the lake’s water column and ... -
LakeCC: a tool for efficiently identifying lake basins with application to palaeogeographic reconstructions of North America
; ; (Journal of Quaternary Science, 2019)
Along the margins of continental ice sheets, lakes formed in isostatically depressed basins during glacial retreat. Their shorelines and extent are sensitive to the ice margin and the glacial history of the region. Proglacial ... -
Land Cover Impacts on Land-Atmosphere Coupling Strength in Climate Simulations With WRF Over Europe
; ; ; ; (Journal of Geophysical Research: Atmospheres, 2020)
Land use and land cover changes are important human forcings to the Earth's climate. This study examines the land-atmosphere coupling strength and the relationship between surface fluxes and clouds and precipitation for ... -
Land Surface Temperature Variation Due to Changes in Elevation in Northwest Vietnam
(Climate, 2018)Land surface temperature (LST) is one of the most important variables for applications relating to the physics of land surface processes. LST rapidly changes in both space and time, and knowledge of LST and its spatiotemporal ... -
Landkreis Emsland optimiert im Moornaturschutz-gebiet Bockholter Dose die Voraussetzungen für die Entwicklung zu einem naturnahen Hochmoor
(TELMA - Berichte der Deutschen Gesellschaft für Moor- und Torfkunde; Band 53; 2023)Der Landkreis Emsland hat zwischen 2019 und 2023 mit einer Fließgewässerverlegung und umfangreichem Verwallungsbau und Grabenstau das Moornaturschutzgebiet (NSG) Bockholter Dose weiter vernässt. -
Landschaftsökologische Exkursionen in die Greifswalder Umgebung
(Greifswalder Geographische Arbeiten; 2003, 30) -
Landschaftswahrnehmung, regionale Identität und Einschätzung des Managements im Biosphärenreservat Mittelelbe. Ergebnisse einer quantitativen Bevölkerungsbefragung
Solbrig, Franziska; Buer, Clara; (Ernst-Moritz-Arndt Universität Greifswald, 2013-08-15)
Die vorliegende quantitative Befragung unter den Bewohnern des Biosphärenreservates Mittelelbe untersucht, wie die Menschen ihre Region, Natur und Landschaft und das Biosphärenreservat wahrnehmen und einschätzen. Die ...
