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Zeitschrift für Geophysik 36 / 3
(Zeitschrift für Geophysik; 36; 1970)Dieser Band enthält Artikel zu Themengebieten der Geophysik, veröffentlicht durch die Deutsche Geophysikalische Gesellschaft in dem Jahr 1970. -
The Impact of Solar Activity on Forecasting the Upper Atmosphere via Assimilation of Electron Density Data
; ; ; (Space Weather, 2021-05-20)
Abstract This study presents a comprehensive comparison of the impact of solar activity on forecasting the upper atmosphere through assimilation of radio occultation (RO)‐derived electron density (Ne) into a physics‐based ... -
Cable reverberations during wireline distributed acoustic sensing measurements: their nature and methods for elimination
; ; ; ; (Geophysical Prospecting, 2021-05-16)
ABSTRACT The application of distributed acoustic sensing in borehole measurements allows for the use of fibre optic cables to measure strain. This is more efficient in terms of time and costs compared with the deploying ... -
Bryozoan‐rich stromatolites (bryostromatolites) from the Silurian of Gotland and their relation to climate‐related perturbations of the global carbon cycle
; ; (Sedimentology, 2021-05-12)
ABSTRACT Bryozoan–stromatolite associations (bryostromatolites) formed conspicuous reef structures throughout the Sheinwoodian (Wenlock) to Ludfordian (Ludlow) stratigraphy on Gotland but have not been described so far. ... -
Zircon and Melt Extraction From a Long‐Lived and Vertically Extensive Magma System Underneath Ilopango Caldera (El Salvador)
; ; ; ; ; ; ; ; ; ; ; (Geochemistry, Geophysics, Geosystems, 2021-05-12)
Abstract The Tierra Blanca (TB) eruptive suite comprises the last four major eruptions of Ilopango caldera in El Salvador (≤45 ka), including the youngest Tierra Blanca Joven eruption (TBJ; ∼106 km3): the most voluminous ... -
Upscaling Sediment‐Flux‐Dependent Fluvial Bedrock Incision to Long Timescales
(Journal of Geophysical Research: Earth Surface, 2021-05-12)
Abstract Fluvial bedrock incision is driven by the impact of moving bedload particles. Mechanistic, sediment‐flux‐dependent incision models have been proposed, but the stream power incision model (SPIM) is frequently used ... -
Carbonates from the ancient world's longest aqueduct: A testament of Byzantine water management
; ; ; ; (Geoarchaeology, 2021-05-06)
Abstract The fourth‐ and fifth‐century aqueduct system of Constantinople is, at 426 km, the longest water supply line of the ancient world. Carbonate deposits in the aqueduct system provide an archive of both archaeological ... -
A systematic approach and software for the analysis of point patterns on river networks
; ; (Earth Surface Processes and Landforms, 2021-05-05)
Abstract Many geomorphic phenomena such as bank failures, landslide dams, riffle‐pool sequences and knickpoints can be modelled as spatial point processes. However, as the locations of these phenomena are constrained to ... -
Mega‐scale glacial lineations formed by ice shelf grounding in the Canadian Beaufort Sea during multiple glaciations
; ; ; ; ; ; ; (Earth Surface Processes and Landforms, 2021-05-05)
Abstract Mega‐scale glacial lineations formed by the raking of ice shelves across the seafloor have been reported from multiple polar regions. Here, we present the first evidence of continental slope situated buried ... -
Improving crosshole ground‐penetrating radar full‐waveform inversion results by using progressively expanded bandwidths of the data
; ; (Near Surface Geophysics, 2021-05-05)
ABSTRACT In the last decade, time‐domain crosshole ground‐penetrating radar full‐waveform inversion has been applied to several different test sites and has improved the resolution and reconstruction of subsurface properties. ... -
A Detailed, Multi‐Scale Assessment of an Atmospheric River Event and Its Impact on Extreme Glacier Melt in the Southern Alps of New Zealand
; ; ; ; ; (Journal of Geophysical Research: Atmospheres, 2021-05-02)
Abstract North‐westerly airflow and associated atmospheric rivers (ARs) have been found to profoundly influence New Zealand’s west coasts, by causing flooding, landslides and extreme ablation and accumulation on glaciers ... -
1001 Rocket Launches for Space Missions and Their Infrasonic Signature
; ; ; (Geophysical Research Letters, 2021-04-28)
Abstract Infrasound array processing is applied to monitor and characterize atmospheric explosions in the context of the Comprehensive Nuclear‐Test‐Ban Treaty. Anyhow, for many infrasound sources the exact location and ... -
Mesospheric Q2DW Interactions With Four Migrating Tides at 53°N Latitude: Zonal Wavenumber Identification Through Dual‐Station Approaches
; ; ; ; (Geophysical Research Letters, 2021-04-28)
Abstract Mesospheric winds from two longitudinal sectors at 53°N latitude are combined to investigate quasi‐two‐day waves (Q2DWs) and their nonlinear interactions with tides. In a summer 2019 case study, we diagnose the ... -
Bursty Ion Escape Fluxes at Mars
; ; ; ; ; ; (Journal of Geophysical Research: Space Physics, 2021-04-28)
Abstract Based on the Mars Atmosphere and Volatile Evolution measurements we have observed cases when the fluxes of oxygen ions escaping the Martian ionosphere exceed their median values by more than a factor of 100. In ... -
Microseismicity and Lava Flows Hint at Magmato‐Tectonic Processes Near the Southern Tip of the Fonualei Rift and Spreading Center in the Lau Basin
; ; ; ; ; (Journal of Geophysical Research: Solid Earth, 2021-04-27)
Abstract Spreading centers in the proximity of back‐rolling subduction zones constitute an ideal natural laboratory to investigate the interaction of magmatism and tectonism during the early evolution of back‐arc basins. ... -
Archetypes and Controls of Riverine Nutrient Export Across German Catchments
;; ; ; ; (Water Resources Research, 2021-04-26)
Abstract Elevated nutrient inputs challenge the health and functioning of aquatic ecosystems. To improve riverine water quality management, it is necessary to understand the underlying biogeochemical and physical processes, ... -
Teeth of Past and Present Elephants: Microstructure and Composition of Enamel in Fossilized Proboscidean Molars and Implications for Diagenesis
; ; ; ; ; (Geochemistry, Geophysics, Geosystems, 2021-04-22)
Abstract Enamel as hardest biological tissue remains unaltered for millions of years and is therefore an excellent archive for studies on paleodiet, paleoecology, paleoclimate, paleoenvironment, biomechanical, and evolutionary ... -
Modeling of Planetary Wave Influences on the Pre‐reversal Enhancement of the Equatorial F Region Vertical Plasma Drift
; (Space Weather, 2021-04-21)
Abstract Temporal and longitudinal variations of the pre‐reversal enhancement (PRE) in the equatorial F region vertical plasma drift are examined based on idealized simulations by the thermosphere‐ionosphere‐electrodynamics ... -
Stress Drop Variations in the Region of the 2014 MW8.1 Iquique Earthquake, Northern Chile
; ; (Journal of Geophysical Research: Solid Earth, 2021-04-09)
Abstract We compute stress drops from P and S phase spectra for 534 earthquakes in the source region of the 2014 MW8.1 Iquique megathrust earthquake in the northern Chilean subduction zone. An empirical Green's function ... -
Stable Biological Production in the Eastern Equatorial Pacific Across the Plio‐Pleistocene Transition (∼3.35–2.0 Ma)
; ; ; ; ; ; (Paleoceanography and Paleoclimatology, 2021-04-08)
Abstract Upwelling within the Eastern Equatorial Pacific (EEP) Ocean is a key factor for the Earth's climate because it supports >10% of the present‐day biological production. The dynamics of upwelling in the EEP across ...