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Now showing items 2859-2878 of 5725
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M2 Internal-Tide Generation in STORMTIDE2
; (Journal of Geophysical Research: Oceans, 2020)
Internal-tide generation has been quantified using both pressure work and energy conversion. When calculating the pressure work from simulated or observed data, the internal-tide pressure has to be decomposed from the full ... -
Machine learning based identification of dominant controls on runoff dynamics
; Schumann, Andreas H. (Hydrological Processes, 2020-03-16)
Hydrological models used for flood prediction in ungauged catchments are commonly fitted to regionally transferred data. The key issue of this procedure is to identify hydrologically similar catchments. Therefore, the ... -
Machine Learning‐Based Prediction of Spatiotemporal Uncertainties in Global Wind Velocity Reanalyses
; Saynisch‐Wagner, Jan; Thomas, Maik (Journal of Advances in Modeling Earth Systems, 2020-05-13)
The characterization of uncertainties in geophysical quantities is an important task with widespread applications for time series prediction, numerical modeling, and data assimilation. In this context, machine learning is ... -
Macrofauna as a major driver of bentho‐pelagic exchange in the southern North Sea
; van Beusekom, Justus E. E.; Eisele, Annika; Emeis, Kay‐Christian; Friedrich, Jana; Kröncke, Ingrid; Logemann, Ella Lu; Meyer, Julia; Naderipour, Céline; Schückel, Ulrike; Wrede, Alexa; Zettler, Michael L. (Limnology and Oceanography, 2021-05-06)
The contribution of sediments to nutrient cycling of the coastal North Sea is strongly controlled by the intensity of fluxes across the sediment water interface. Pore‐water advection is one major exchange mechanism that ... -
Macroporosity and Grain Density of Rubble Pile Asteroid (162173) Ryugu
; ; ; ; ; Sakatani, Naoya; ; ; ; Honda, Chikatoshi (Journal of Geophysical Research: Planets, 2020-12-04)
Rubble pile asteroids such as (162173) Ryugu have large bulk porosities, which are believed to result from void spaces in between the constituent boulders (macroporosity) as well as void spaces within the boulders themselves ... -
Mafic Late Miocene–Quaternary volcanic rocks in the Kamchatka back arc region: implications for subduction geometry and slab history at the Pacific–Aleutian junction
Volynets, Anna; Churikova, Tatiana;; Gordeychik, Boris; Layer, Paul (Contributions to Mineralogy and PetrologyContributions to Mineralogy and Petrology, 2009)
New 40Ar/39Ar and published 14C ages constrain voluminous mafic volcanism of the Kamchatka back-arc to Miocene (3–6 Ma) and Late Pleistocene to Holocene (<1 Ma) times. Trace elements and isotopic compositions show that ... -
MAGEMin, an Efficient Gibbs Energy Minimizer: Application to Igneous Systems
; ; ; (Geochemistry, Geophysics, Geosystems, 2022-07-18)
Prediction of stable mineral equilibria in the Earth's lithosphere is critical to unravel the tectonomagmatic history of exposed geological sections. While the recent advances in geodynamic modeling allow us to explore the ... -
Magma chamber evolution prior to the Campanian Ignimbrite and Neapolitan Yellow Tuff eruptions (Campi Flegrei, Italy)
Pabst, Sonja;; Civetta, Lucia; Tesoro, Roberto (Bulletin of Volcanology, 2007)
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Magmatic Activity and Dynamics of Melt Supply of Volcanic Centers of Ultraslow Spreading Ridges: Hints From Local Earthquake Tomography at the Knipovich Ridge
; ; (Geochemistry, Geophysics, Geosystems, 2022-10-07)
Along ultraslow spreading ridges melt is distributed unequally, but melt focusing guides melt away from amagmatic segments toward volcanic centers. An interplay of tectonism and magmatism is thought to control melt ascent, ... -
Magmatic and Sedimentary Structure beneath the Klyuchevskoy Volcanic Group, Kamchatka, From Ambient Noise Tomography
; ; ; ; ; ; Luehr, Birger; ; Abkadyrov, Ilyas; Droznin, Dima; Gordeev, Evgeny (Journal of Geophysical Research: Solid Earth, 2020-03-14)
The Klyuchevskoy Volcanic Group is a cluster of the world's most active subduction volcanoes, situated on the Kamchatka Peninsula, Russia. The volcanoes lie in an unusual off‐arc position within the Central Kamchatka ... -
Magmatic and volcanological evolution of the Desertas rift zone (Madeira Archipelago, NE Atlantic)
(Univ. Bremen, 2004)Volcanology, volcanic rift zones, Madeira, fluid inclusions, thermobarometry, geochemistry, geochronology. - Madeira and the Desertas Islands show two well-developed volcanic rift zones which intersect near the eastern tip ... -
Magnetic coupling of the solar photosphere and chromosphere
(Univ. Freiburg (Breisgau), 2008)The solar surface outside sunspots and active regions, i.e., the quiet Sun, shows the ubiquitous pattern of granulation in the photosphere. The quiet solar photosphere harbors small-scale magnetic structures inside and ... -
Magnetic dating of Quaternary sediments, volcanites and archaeological materials: an overview
(E&G – Quaternary Science Journal; Vol.57, No. 1-2)Unter magnetischer Datierung versteht man sowohl die Verfahren, die die zeitlichen Variationen des Erdmagnetfeldes (EMF) zur Altersbestimmung benutzen, als auch die Verwendung der klimaabhängigen Änderungen der ... -
Magnetic excursions recorded in the Middle to Upper Pleistocene loess/palaeosol sequence Wels-Aschet (Austria).
(E&G – Quaternary Science Journal; Vol.62)Die vorliegende Arbeit stellt die paläomagnetische Bearbeitung der Mittel- bis Oberpleistozänen Löss-/Paläoboden-Sequenz im Areal der ehemaligen Ziegelei Würzburger in Aschet bei Wels vor. Fünf intensiv entwickelte Paläoböden, ... -
Magnetic fabric in ilmeniterich norites of the Bjerkreimer-Sokndal Layered Intrusion, Norway
(11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)The Bjerkreim-Sokndal (BKS) is a layered intrusion, located in the Mid- Proterozoic Egersund anorthosite-norite province within the Sveconorwegian province of the Baltic Shield, south Norway. The layered intrusion formed ... -
Magnetic Properties of Asteroid (162173) Ryugu
; ; ; Blum, Jürgen; Fornaçon, Karl-Heinz; Fujimoto, Masaki; Gebauer, Kathrin; ; ; Hillenmaier, Olaf; Ho, Tra-Mi; ; Krause, Christian; Kührt, Ekkehard; Lorda, Laurence; ; ; Moussi-Soffys, Aurélie; ; ; ; Stoll, Bernd; Weiss, Benjamin P.; ; (Journal of Geophysical Research: Planets, 2020)
Observations of the magnetization state of asteroids indicate diverse properties. Values between 1.9 × 10 −6 Am 2/kg (Eros) and 10 −2 Am 2/kg (Braille) have been reported. A more detailed understanding of asteroidal ... -
Magnetic repeat station survey of Germany 1999/2000
; Fredow, Martin (Scientific Technical Report / Geoforschungszentrum Potsdam; 2001, 04)
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Magnetic Surveys With Unmanned Aerial Systems: Software for Assessing and Comparing the Accuracy of Different Sensor Systems, Suspension Designs and Compensation Methods
; ; ; (Geochemistry, Geophysics, Geosystems, 2021-07-13)
A typical problem for magnetic surveys with small Unmanned Aerial Systems (sUAS) is the heading error caused by undesired magnetic signals that originate from the aircraft. This can be addressed by suspending the magnetometers ... -
Magnetische Aspekte zum Rodderberg-Vulkan (Bonn)
(E&G – Quaternary Science Journal; Vol.53, No. 1)Der Rodderberg bei Bonn ist der nördlichste Teil des Osteifel-Vulkanfeldes aus dem Pleistozän. Seine mehrphasige Entstehungsgeschichte ist verzahnt mit den fluviatilen Sedimenten des Rheins und den äolischen Sedimenten aus ... -
Magnetische Charakteristik von Pyroklastika des Ság-hegy Vulkan Komplex, Kleine Ungarische Tiefebene
(11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)Der Ság-hegy Vulkan Komplex befindet sich in dem Vulkanfeld der Kleinen Ungarischen Tiefebene. Eine 39Ar/40Ar Datierung ergab ein Alter von 5, 42 ± 0, 06Ma für den Ság-hegy (Wijbrans et al. 2004). Die Entwicklung des ...
