Results 251 to 260 of about 5,839,153 (344)

Investigation on the Coherent Component of SHARAD Surface Echo and Surface Roughness: Scaling Behavior and Influence of Hurst Exponent

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract The radar surface echo can be separated into coherent and incoherent components by statistical approaches, and the coherent component can be described by a backscattering model related to the RMS height. According to backscattering models for fractal surfaces, the coherent power in decibels decreases with RMS height on a scale independent of ...
Tiansheng Hong, Yan Su, Elena Pettinelli, Roberto Orosei, Sebastian Emanuel Lauro, Zhibin Li, Chunyu Ding, Elisabetta Mattei, Barbara Cosciotti, Chunlai Li   +9 more
wiley   +1 more source

Augustus' solar meridian functioning and the birth of the western leap year. [PDF]

Sci Rep
Baiocchi V, Baumgartner M, Barbarella M, D'Alessio MT, Del Pizzo S, Giannone F, Radicioni F, Stoppini A, Tosi G, Troisi S, Alessandri L.   +10 more
europepmc   +1 more source

Enhanced Wintertime Current Along the South China Sea Continental Slope Over the Past Three Decades

Journal of Geophysical Research: Oceans, Volume 131, Issue 2, February 2026.
Abstract The slope current in the northwest South China Sea (SCS) plays a vital role in regulating mass and nutrient exchange between the coastal region and the open ocean. Over the past three decades, this current has exhibited a significant increasing trend, indicating a much stronger marginal sea‐open ocean interaction.
Baolan Wu, Jianping Gan
wiley   +1 more source

Monitoring water vapor transport in near real-time with low-cost GNSS receiver network. [PDF]

Sci Rep
Wu J, Ma H, Wu W, Cheng D.
europepmc   +1 more source

Applying Hpo Indices to Empirical Thermospheric Density Models During Geomagnetic Storms

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract Accurate atmospheric drag modeling is essential for precise orbit determination and prediction of Low Earth Orbit satellites. A key component is the thermospheric density, typically estimated using empirical models driven by geomagnetic activity indices such as the 3‐hr Kp or ap.
Kemin Zhu, Jizhang Sang, Xianjie Li, Lei Liu, Yangbo Qian, Shengfu Xia   +5 more
wiley   +1 more source

Integration of TLS and HLS Data for Non-Destructive Structural Damage Assessment of Building Structures: A Case Study of a Small Hydropower Plant. [PDF]

Materials (Basel)
Kędziorski P, Katzer J, Jagoda M.
europepmc   +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

Optimizing the angle of arrival positioning error of a UAV via an improved nutcracker optimization algorithm. [PDF]

Sci Rep
Li Y, Hu Q, Sun S, Ying W, Yan X.
europepmc   +1 more source

Modeling Geoid and Dynamic Topography From Tomography‐Based Thermo‐Chemical Mantle Convection

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract Mantle convection causes the most important contribution to the geoid and dynamic topography. With mantle density inferred from high‐resolution tomography models and numerical methods solving the governing equations of viscous mantle flow, the modeled geoid can fit the observations well.
Ronghua Cui, Bernhard Steinberger, Jian Fang   +2 more
wiley   +1 more source

Assessment of the Interaction of the Combined Piled Raft Foundation Elements Based on Long-Term Measurements. [PDF]

Sensors (Basel)
Kacprzak GM, Kassa SM.
europepmc   +1 more source