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Anzeige der Dokumente 4560-4579 von 6925
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Non-lithistid fossil Demospongiae - origins of their palaeobiodiversity and highlights in history of preservation
; (Systema Porifera : a guide to the classification of sponges. Vol. 1: Introductions and Demospongiae, 2002)
Available evidence suggests that the first demosponges occur in the Late Proterozoic, with forms characterized by bundles of long monaxonic spicules. In the Middle Devonian the first modern forms of Dendroceratida, ... -
Nonionoides n. gen. demens (Bık, 1964), eine bisher verkannte Foraminiferenart aus dem Aquitan des Mainzer Beckens
(Mainzer geowissenschaftliche Mitteilungen; 08. 1980)Investigations on the systematic position of the foraminifer generally refered to as Hastigerina demens known from the Aquitanian of the Mayence basin have shown, that a new classification has to be made. Based on the ... -
Nonlinear electron synchrotron cooling and synchrotron self Compton flaring of TeV blazars
(Univ. Bochum, 2008)We investigate the double-peak profile of the emission of powerful cosmic non-thermal radiation sources with dominant magnetic field self-generation like TeV blazars. Therefore, we assume a flare to occur in the emission ... -
Nonmarine Ostracoda as proxies in (geo‐)archaeology — A review
; ; (Geoarchaeology, 2022-05-03)
Ostracods as bioindicators are extremely useful for reconstructing palaeoenvironment and palaeoclimate and can also indicate the provenance of sediments and materials, for example, in studies on ancient commercial networks. ... -
Nonstationarity of the link between the Tropics and the summer East Atlantic pattern
; ; (Atmospheric Science Letters, 2021-02-08)
A 700‐year pre‐industrial control run with the MPI‐ESM‐LR model is used to investigate the link between the summer East Atlantic (SEA) pattern and the Pacific‐Caribbean rainfall dipole (PCD), a link that has previously ... -
Nonuniform but highly preferential stemflow routing along bark surfaces and actual smaller infiltration areas than previously assumed: A case study on European beech (Fagus sylvatica L.) and sycamore maple (Acer pseudoplatanus L.).
; ; Lotze, Robert (Ecohydrology, 2020-06-30)
Canopy and tree morphology are assumed to play a significant role in modulating the amount of rainfall water during its routing throughout the vegetation and the near‐surface Critical Zone. One crucial point of research ... -
Non‐ and sub‐state climate action after Paris: From a facilitative regime to a contested governance landscape
; ; (Wiley Interdisciplinary Reviews: Climate Change, 2022-06-15)
The Paris Agreement marks a significant milestone in international climate politics. With its adoption, Parties call for non‐ and sub‐state actors to contribute to the global climate agenda and close the emissions gap left ... -
Non‐exchangeable stable hydrogen isotope ratios in clay minerals and soil clay fractions: A method test
; ; ; (European Journal of Soil Science, 2022-08-04)
Stable hydrogen isotope ratios (δ2H values) in structural hydroxyl groups of pedogenic clay minerals are inherited from the surrounding water at the time of their formation. Only non‐exchangeable H preserves the environmental ... -
Non‐Isotropic Contraction and Expansion of Samples in Diamond Anvil Cells: Implications for Thermal Conductivity at the Core‐Mantle Boundary
; (Geophysical Research Letters, 2022-09-30)
The thermal conductivities of mantle and core materials have a major impact on planetary evolution, but their experimental determination requires precise knowledge of sample thickness at high pressure. Despite its importance, ... -
Non‐Linear Dimensionality Reduction With a Variational Encoder Decoder to Understand Convective Processes in Climate Models
; ; ; ; ; (Journal of Advances in Modeling Earth Systems, 2022-08-13)
Deep learning can accurately represent sub‐grid‐scale convective processes in climate models, learning from high resolution simulations. However, deep learning methods usually lack interpretability due to large internal ... -
Non‐Orographic Gravity Waves and Turbulence Caused by Merging Jet Streams
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; (Journal of Geophysical Research: Atmospheres, 2023-07-17)
Abstract Jet streams are important sources of non‐orographic internal gravity waves and clear air ...
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Non‐Tidal Background Modeling for Satellite Gravimetry Based on Operational ECWMF and ERA5 Reanalysis Data: AOD1B RL07
; ; ; ; ; ; (Journal of Geophysical Research: Solid Earth, 2022-08-13)
The Atmosphere and Ocean De‐Aliasing Level‐1B (AOD1B) product provides a priori information about temporal variations in the Earth's gravity field induced by non‐tidal circulation processes in atmosphere and ocean. It is ... -
Noora Prescribed Wells Area groundwater monitoring status report 2002
(Department of Water, Land and Biodiversity Conservation, Adelaide, SA2002)The Noora Prescribed Wells Area (PWA) lies over the deepest part of the Murray Basin in the far eastern boundary of South Australia (Fig. 1). It is bordered to the north by the River Murray, to the east by the South Australia ... -
Normalograptus kufraensis, a new species of graptolite from the western margin of the Kufra Basin, Libya
(Geological Magazine, 2013)Normalograptus kufraensis sp. nov. occurs as monospecific assemblages in the Tanezzuft Formation at the western margin of the Kufra Basin (Jabal Eghei), southern Libya. These graptolites have parallel-sided rhabdosomes ... -
North Atlantic Drift Sediments Constrain Eocene Tidal Dissipation and the Evolution of the Earth‐Moon System
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; (Paleoceanography and Paleoclimatology, 2023-02-09)
Cyclostratigraphy and astrochronology are now at the forefront of geologic timekeeping. While this technique heavily relies on the accuracy of astronomical calculations, solar system chaos limits how far back astronomical ... -
Northeast Siberian Permafrost Ice‐Wedge Stable Isotopes Depict Pronounced Last Glacial Maximum Winter Cooling
; ; ; ; ; ; ; (Geophysical Research Letters, 2021-04-09)
Stable isotopes (δ18O, δD) of wedge ice hold potential to reconstruct past winter climate conditions. Here, we present records of the marine isotope stages (MIS) 3 and 2 including the last Glacial maximum (LGM) from Bol’shoy ... -
Northern Adelaide Plains Prescribed Wells Area groundwater monitoring status report 2002
(Department of Water, Land and Biodiversity Conservation, Adelaide, SA2002)Prescribed Wells Area (PWA) was established in the early 1960s, in order to monitor groundwater levels and salinity (Fig. 1). The number of wells monitoring water levels, particularly in the Tertiary Aquifers (T1 and T2) ... -
Northward Propagation of the Intertropical Convergence Zone and Strengthening of Indian Summer Monsoon Rainfall
; ; ; ; (Geophysical Research Letters, 2020-11-29)
Since 2002, there has been a clear increase in Indian summer monsoon rainfall (ISMR). We demonstrate that this increase is associated with a change in the dynamics of the Intertropical Convergence Zone (ITCZ). Using a ... -
Not All Clear Air Turbulence Is Kolmogorov—The Fine‐Scale Nature of Atmospheric Turbulence
; ; ; ; (Journal of Geophysical Research: Atmospheres, 2023-01-20)
We study a strong clear air turbulence (CAT) event experienced by the German High‐Altitude Long‐Range research aircraft (HALO) during the Southern Hemisphere Transport, Dynamics, and Chemistry campaign. HALO encountered ...
