Results 101 to 110 of about 46,869 (239)

Polygonal tepee structures of Arabia

The Depositional Record, Volume 12, Issue 1, February 2026.
Tepee structures on Sheybarah Island form polygonal microbial cemented crusts in the intertidal. Radiocarbon dating suggests they formed in the Holocene and reflect minor sea‐level changes, highlighting their value as palaeoenvironmental indicators. Satellite surveys identified 126 polygonal features, including coral reefs that may have developed on ...
Pauline Falkenberg, Sarima Vahrenkamp, Elisa Garuglieri, Alexander Petrovic, Kai Hachmann, Viswasanthi Chandra, Volker C. Vahrenkamp   +6 more
wiley   +1 more source

Sub‐annual spatiotemporal dynamics of sediment and organic matter storage in beaver ponds

Earth Surface Processes and Landforms, Volume 51, Issue 2, February 2026.
Ponds higher up the beaver cascades showed increasing erosion of sediments following heavier rainfall events, whereas those further down showed increasing sediment accretion. Following periods with less intense rainfall all ponds showed net sediment accretion.
Gareth Bradbury, Alan Puttock, Gemma Coxon, Stewart Clarke, Richard E. Brazier   +4 more
wiley   +1 more source

Multi-Global Navigation Satellite System for Earth Observation: Recent Developments and New Progress

Remote Sensing
The Global Navigation Satellite System (GNSS) has made important progress in Earth observation and applications. With the successful design of the BeiDou Navigation Satellite System (BDS), four global navigation satellite systems are available worldwide,
Shuanggen Jin, Xuyang Meng, Gino Dardanelli, Yunlong Zhu   +3 more
doaj   +1 more source

Co‐Seismic Deformation and Local Stress Evolution of the Philippines Earthquakes in July and October 2022 Revealed by InSAR and GNSS Observations

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract On 27 July and 25 October 2022, an Mw 7.0 earthquake and an Mw 6.4 earthquake struck Abra, northwest of Luzon, Philippines, respectively, with a time interval of less than 3 months and a distance of about 16 km. In this research, interferometric synthetic aperture radar (InSAR) was utilized to retrieve the co‐seismic surface deformation field ...
Yihan Nai, Chuang Song, Zhenhong Li, Zhenjiang Liu, Chen Yu, Jing Du, Haihui Liu, Jianbing Peng   +7 more
wiley   +1 more source

Algorithm Theoretical Basis for Version 3 TEMPO Level 0–1 Processor

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract The Tropospheric Emissions: Monitoring of Pollution (TEMPO) instrument is the first spaceborne hyperspectral spectrometer that measures backscattered sunlight over North America in a geostationary orbit. The two charge‐coupled device (CCD) detectors of TEMPO, with spectral coverages of 293–494 and 538–741 nm and resolutions of 0.53–0.63 nm ...
Heesung Chong, Xiong Liu, John Houck, David E. Flittner, James Carr, Weizhen Hou, John E. Davis, Raid M. Suleiman, Kelly Chance, Nischal Mishra, Christopher Chan Miller, Gonzalo González Abad, Brian Baker, James Lasnik, Dennis Nicks, Juseon Bak, Caroline R. Nowlan, Huiqun Wang, Junsung Park, Jean Fitzmaurice, Laurel Carpenter   +20 more
wiley   +1 more source

Magma Storage Below Sabancaya Volcano (Southern Peru) Imaged by Broadband Magnetotellurics

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract Sabancaya volcano is one of the most active volcanoes in the Central Andes. Its ongoing eruptive process is accompanied by large‐scale deformation, with activation of the Huambo‐Cabanaconde fault system, marked by intense seismicity over an area of about 50 × 30 km2 ${\mathrm{k}\mathrm{m}}^{2}$.
Jose‐Luis Torres, Svetlana Byrdina, Gonzalo Romero‐Beltran, Stéphane Garambois, Volker Rath, Yanet Antayhua, Marco Rivera, Alain Burgisser, Roger Machacca, Marco Milla, Hernando Tavera, Philip Hering   +11 more
wiley   +1 more source

Thresholds of Wave Forcing: Implications for Atoll Reef Dynamics Under Sea Level Rise

Journal of Geophysical Research: Oceans, Volume 131, Issue 2, February 2026.
Abstract We investigate the response of shallow reef flow to tidal variability and wave exposure during a 4‐month field campaign in southern Huvadhu Atoll, Maldives. Incident waves breaking on steep fore reefs and reef crests generate a setup proportional to offshore wave height that drives a cross‐reef flow. We emphasize a critical threshold—where the
M. Lindhart, G. Masselink, A. Holsclaw, T. Scott   +3 more
wiley   +1 more source

A Novel Deep Learning Approach for TEC Map Completion Using Image Equation‐Guided Loss

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract This study introduces the Image Equation Mechanism‐Completion Generative Adversarial Network (IEM‐CGAN), a groundbreaking deep learning framework that revolutionizes the reconstruction of large‐scale global ionospheric total electron content (TEC) maps.
Qingfeng Li, Hanxian Fang, Chao Xiao, Die Duan, Hongtao Huang, Ganming Ren, Xuhui Shen   +6 more
wiley   +1 more source

TDRSS Augmentation System for Satellites [PDF]

In 2015, NASA Goddard Space Flight Center (GSFC) reinvigorated the development of the TDRSS Augmentation Service for Satellites (TASS). TASS is a global, space-based, communications and navigation service for users of Global Navigation Satellite Systems ...
Baldwin, Philip, Gramling, Cheryl, Heckler, Gregory W., Valdez, Jennifer   +3 more
core   +1 more source

Six‐Component Electromagnetic Wave Measurements of Sprite‐Associated Lightning

Radio Science, Volume 61, Issue 2, February 2026.
Abstract Low frequency electromagnetic waves emitted by sprite‐producing lightning are normally measured using vertical electric fields or horizontal magnetic fields. Here we report for the first time the simultaneous measurement of electromagnetic waves from sprite‐producing lightning in all six electromagnetic field components Ex,Ey,Ez,Hx,Hy,andHz ...
Martin Füllekrug, Michael Kosch, Gavin Dingley, Xue Bai, Liliana Macotela   +4 more
wiley   +1 more source