Results 91 to 100 of about 18,055 (209)

Evaluating Deep‐Learning‐Based Earthquake Detection in a Sparse Coastal Network: Insights From the 2017 Changdao Swarm, Eastern China

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract Constructing reliable earthquake catalogs in regions with sparse station coverage and strong noise remains challenging. We evaluate the performance of a deep‐learning–based detection and location workflow (LOC‐FLOW) using the 2017 Changdao offshore earthquake swarm in eastern China.
Peng Wang, Yanzhang Wang, Zonghui Dai, Jianchang Zheng, Xue Kong   +4 more
wiley   +1 more source

Topographic Modulation of Martian Near‐Surface Winds: Insights From Perseverance Measurements and CFD Modeling in Jezero Crater

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract Near‐surface wind fields on Mars are profoundly modulated by complex topography, yet fine‐scale wind field characteristics remain poorly resolved for key geomorphological units such as deltas, valleys, and impact craters, due to the spatial constraints of lander‐based wind observations.
Yuhang Liu, Lei Zhang, Zhihao Shen, Peng Cao, Zhao Jiang, Jing Li, Jinhai Zhang   +6 more
wiley   +1 more source

Design and Implementation of Single Axis Solar Tracking System: Utilizing GPS, Astronomical Equations, and Satellite Dish Actuator for Optimal Efficiency

Journal of Engineering
Globally, the focus is on maximizing the energy yield and efficiency of PV systems as an essential renewable energy source. Different methods have been proposed to achieve this goal.
Rizgar Ahmed Salih, Karzan Qadir Mohammed, Peshawa Osman Hama, Rawaz Othman Hassan, Barham Kamal Noori   +4 more
doaj   +1 more source

Tectonics and Sliver Motion in Costa Rica: Strain Partitioning Constrained by GNSS Velocities Data

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract The tectonic deformation of Costa Rica is controlled by the subduction of the Cocos Plate beneath the Caribbean Plate and the Panama microplate along the Middle America Trench, with oblique convergence in northern Costa Rica to 2024 from 154 permanent stations distributed across Costa Rica to derive for the first time spatially continuous ...
P. Boymond, C. Muller, M. Protti, E. Chaves   +3 more
wiley   +1 more source

Hunga‐Tonga Volcano Plumbing System Inferred From Virtual Seismometer Approach

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract We present a surface wave tomography application based on event‐pair interferometry to investigate local (∼100 km) mid‐ocean crustal structures, with a particular focus on imaging a potential crustal solidified intrusive complex in a region lacking seismic stations.
Taghi Shirzad, Marcelo Bianchi, Mohsen Kazemnia, Götz Bokelmann   +3 more
wiley   +1 more source

Exploring Qibla Accuracy in Coffee Shops: A Study in Padang City

Waraqat: Jurnal Ilmu-Ilmu Keislaman
Determining the direction of the Qibla is essential before carrying out worship (prayer). This research, through a qualitative study, aims to determine and explore the accuracy of the Qibla direction in coffee shops in Padang City.
Abdul Hafizh, Afrinal Afrinal
doaj   +1 more source

Flux and Isotopic Composition of Sedimentary Carbon Subducting Along the World's Trenches

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Here we provide comprehensive estimates for the subducted sedimentary flux of inorganic and organic carbon and δ13C at 16 trench segments worldwide. Our calculations provide minimum (incoming sediment), maximum (trench fill) and best estimates (underthrust) of carbon fluxes.
Terry Plank, Alberto Malinverno
wiley   +1 more source

Seismic Constraints on the 3‐D Magma Conduit System of Mount Etna

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Mount Etna, one of the most active volcanoes in the world, provides an excellent natural laboratory for investigating magma plumbing systems. However, previous models of Etna's volcanic structure have not adequately resolved the distribution of deep magma conduits. In this work, we use seismic tomography to obtain high‐resolution 3‐D images of
Siwen Zhang, Yuanyuan Hua, Dapeng Zhao, Yi‐Gang Xu, Xiao‐Long Huang, Xuan‐Yu Chen, Hong‐Yan Li, Fan Yang, Yue Yuan   +8 more
wiley   +1 more source

Integrating Geospatial Technology and Islamic Jurisprudence: An Analysis of Qibla Deviation in Mosques

Ulul Albab: Jurnal Studi dan Penelitian Hukum Islam
Purpose - Accurate orientation towards the qibla is a fundamental requirement for the validity of prayer in Islam. However, many mosques, particularly those constructed in earlier periods, may exhibit discrepancies in their qibla orientation due to the ...
Reno Ismanto, Ahmad Fadholi, Priyanggo Karunia Rahman, Sahibzada Muhammad Waseem Jan, Hasna Tuddar Putri   +4 more
doaj   +1 more source

“Caterpillar” ULF Waves in the Dusk Side Sub‐Auroral Region: Conjugate Observations With SuperDARN, Arase and Ground Magnetometers

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract On 23 November 2022, during exceptionally quiet geomagnetic conditions, a distinct ultra‐low frequency (ULF) wave in the Pc5 band (∼2.4 mHz) was observed in the duskside sub‐auroral region by two Canadian SuperDARN (Super Dual Auroral Radar Network) radars.
N. Nishitani, K. Hosokawa, T. Hori, M. Teramoto, P. V. Ponomarenko, A. Shinbori, Y. Obana, A. S. Yukimatu, G. Hussey, Y. Miyoshi, A. Matsuoka, A. Kumamoto, F. Tsuchiya, S. Matsuda, Y. Kasahara, S. Nakamura, I. Shinohara, Y. Zhang, L. Paxton   +18 more
wiley   +1 more source