Results 81 to 90 of about 4,004,586 (295)

Next Generation NASA Initiative for Space Geodesy [PDF]

, 2012
Space geodesy measurement requirements have become more and more stringent as our understanding of the physical processes and our modeling techniques have improved.
Ma, C., Murphy, D., Webb, F. H., Stowers, D. A., Merkowitz, S. M., Pearlman, M. R., Pavlis, E. C., Hilliard, L., Lemoine, F. G., Gross, R. S., Desai, S., Long, J. L., Noll, C. E., McGarry J. F.   +13 more
core  

Enhancing the Seismic Resilience of Masonry‐Infilled RC Structures Using Rubber Joints: Full‐Scale 3D Shaking Table Tests

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Masonry infills in reinforced concrete (RC) frames are highly vulnerable to seismic damage, often sustaining severe cracking even under moderate ground motion, which in turn leads to considerable economic losses and safety risks. To address this issue, this study experimentally evaluates the effectiveness of two innovative rubber‐based joints ...
Enrico Tubaldi, Marko Marinković, Simone Galano, Alessandro Lotti, Fabio Freddi, Daniele Losanno, Hamid Ahmadi, Matija Gams, Nemanja Krtinić, Matija Bošković, Christoph Butenweg, Prateek Kumar Dhir, Filip Manojlovski, Aleksandra Bogdanovic, Zoran Rakicevic, Vlatko Sheshov, Julijana Bojadjieva   +16 more
wiley   +1 more source

Optimized J2 Recovery for Multi‐Decadal Geophysical Studies

Geophysical Research Letters
The time history of the Earth's dynamic oblateness, or J2, is a unique climate data record, with its estimation from satellite laser ranging (SLR) tracking data beginning in 1976.
B. D. Loomis, T. J. Sabaka, K. E. Rachlin, M. J. Croteau, F. G. Lemoine, R. S. Nerem, A. Bellas‐Manley   +6 more
doaj   +1 more source

Cooperative research in space geodesy and crustal dynamics [PDF]

, 1994
This research grant, which covered the period of July 1991 to August 1994, was concerned with a variety of topics within the geodesy and crustal dynamics fields.

core  

Legacy effects of locally extinct flagship species on protected areas

Frontiers in Ecology and the Environment, EarlyView.
Protected areas (PAs) are often established to conserve flagship megafauna so as to mobilize political support and secure sustained conservation investment, with the expectation that flagship‐centered governance will also protect habitat. Despite such efforts, flagship species can experience extirpation, raising a fundamental question: do conservation ...
Rachakonda Sreekar, James EM Watson, Jiajia Liu, Aakash Lamba, Hoong Chen Teo, Jun Ying Lim, Yiwen Zeng   +6 more
wiley   +1 more source

Miocene to Quaternary Tectonostratigraphic Evolution of the Northern Section of the Burdur‐Fethiye Shear Zone, South‐Western Türkiye

Geological Journal, EarlyView.
New zircon ages reveal that lacustrine sedimentation initiated in the Late Miocene (Messinian), revising earlier Pliocene age assignments. The study results support the interpretation of the northern BFSZ as a broad left‐lateral transtensional shear zone rather than a discrete sinistral fault or simple extensional graben array.
İrem Elitez, Gürsel Sunal, Cenk Yaltırak, İsak Yılmaz   +3 more
wiley   +1 more source

A secular variation candidate for IGRF-14 based on core-flow inversion via an ensemble Kalman smoother

Earth, Planets and Space
We present a candidate mean secular variation (SV) model for the 2025.0 $$-$$ - 2030.0 period. The forecasted SV is produced with a data assimilation (DA) system built around a simple frozen-flux model of the core flow and magnetic field near the core ...
Kyle Gwirtz, Terence Sabaka, Weijia Kuang   +2 more
doaj   +1 more source

Intercomparison of a Regional Climate Model Ensemble for Selected European Catchments

International Journal of Climatology, EarlyView.
This study analyzes a regional climate model ensemble for water cycle and water resource research with two models. Results show that ICON generally outperforms TSMP1 simulations, mainly with 2‐m temperature and precipitation. These findings serve as a baseline evaluation that shows how key structural differences influence the model skill.
Jane Leonor Roque, Francis Da Silva Lopes, Julian Alberto Giles, Benjamin D. Gutknecht, Bernd Schalge, Yikui Zhang, Marco Ferro, Petra Friederichs, Klaus Goergen, Stefan Poll, Arianna Valmassoi   +10 more
wiley   +1 more source

New constraints on the postglacial evolution of Lago Maggiore, Northern Italy

Journal of Quaternary Science, EarlyView.
ABSTRACT Lago Maggiore is situated in an overdeepened valley reach at the southern margin of the European Alps, and its thick sediment infill allows the reconstruction of the postglacial valley and lake evolution. We study here the sedimentary succession in the lower Ossola Valley, which is infilled by ~500 m of deposits. In a marginal position, a core
Lukas Gegg, Alexander Fülling, Andrew Greenwood, György Hetényi, F. Martin Hofmann, Giovanni Monegato, Jahir S. Rangel Herrera, Camille Schirra, Marco Venier, Othmar Müntener   +9 more
wiley   +1 more source

Elasticity of seifertite under mantle conditions and its implications for velocity anomalies at the core-mantle boundary

Communications Earth & Environment
The elasticity of seifertite is crucial for understanding seismic velocity anomalies in the lowermost mantle. Using density functional theory, we calculated its thermal elastic properties under mantle conditions.
Longyu Duan, Dong Wang, Fan Zou, Wenzhong Wang, Zhongqing Wu   +4 more
doaj   +1 more source