Results 151 to 160 of about 18,012,027 (287)

On the Origin of Summer Sporadic E Periodicities at Midlatitudes

Space Weather, Volume 24, Issue 9, September 2026.
Abstract Summertime midlatitude sporadic E (Es) layers exhibit daily periodicities whose underlying physical causes remain to be fully identified. We investigate the origin of these periodicities by analyzing an 11‐year data set (2007–2017) comprising ionosonde measurements, FORMOSAT‐3/COSMIC radio occultation (RO) observations, and WACCM‐X neutral ...
Xu Yan, Hongtao Cai, Yusong Qin, Chao Xiong, Jiawei Zhou, Hongwen Xu, Lubing Yang   +6 more
wiley   +1 more source

Deuterated water and the formation of the satellites of Uranus. [PDF]

Proc Natl Acad Sci U S A
Brown ME, Belyakov M, Chandra S, Davis MR, McDowell M, Pandya A, Trinh KT, Trumbo SK.   +7 more
europepmc   +1 more source

Contributions to Relativistic Fundamental Astronomy and Tests of Gravitation in the Solar System

, 2018
This HDR is dedicated to the summary of my work in relativistic gravitation with as scope the tests of general relativity in the solar ...
openaire   +1 more source

Validation of Global Ionospheric Specification (GIS) Electron Density Measurements During Solar Minimum to Solar Maximum Under Quiet and Disturbed Geomagnetic Conditions

Space Weather, Volume 24, Issue 9, September 2026.
Abstract Global Ionospheric Specification (GIS) three‐dimensional electron density profiles constructed by assimilating the line‐of‐sight total electron content (TEC) from global navigation satellite system (GNSS) radio occultation (RO) measurements by FORMOSAT‐7/COSMIC‐2 (F7/C2) and ground‐based receiver network from international GNSS service ...
P. K. Rajesh, C. H. Charles Lin, C. Y. Lin, T. Matsuo, H. Jin, S. Perwitasari, M. Nishioka, Chao‐Yen Chen   +7 more
wiley   +1 more source

Isotopic evidence for a cold and distant origin of 3I/ATLAS. [PDF]

Nature
Cordiner M, Roth NX, Micheli M, Villanueva G, Farnocchia D, Charnley S, Biver N, Bockelée-Morvan D, Bodewits D, Chandler CO, Crovisier J, Drozdovskaya MN, Furuya K, Kelley MSP, Milam S, Noonan JW, Opitom C, Schwamb ME, Thomas CA.   +18 more
europepmc   +1 more source

Amplified Cloud‐Phase Responses Over Global Mountain Regions Under Climate Warming

AGU Advances, Volume 7, Issue 6, September 2026.
Abstract Changes in cloud phase can substantially affect cloud radiative feedbacks and precipitation processes, yet their responses to climate warming remain poorly understood, particularly over mountain regions. Using 20 years of satellite observations together with ERA5 reanalysis data, this study investigates changes in cloud fraction (CF), cloud ...
Ying Zhang, Minghuai Wang, Yannian Zhu, Daniel Rosenfeld, Jihu Liu, Xuexu Wu   +5 more
wiley   +1 more source

Episodic planetesimal disruptions triggered by dissipation of gas disk. [PDF]

Nat Commun
Shuai K, Zhou LY, Hui H.
europepmc   +1 more source

Global Circulation of Martian Ionospheric Currents Revealed by Magnetometer Data

AGU Advances, Volume 7, Issue 6, September 2026.
Abstract In the dynamo region of the Martian ionosphere, a large‐scale current is generated by charge separation: ions collide with neutrals while electrons preferentially gyrate around local magnetic field lines. Using MAVEN magnetometer data and a physics‐informed neural network constrained by Ampère's law and Gauss's law for magnetism (the Neural ...
T. Delcourt, A. Mittelholz
wiley   +1 more source

Simultaneous Mars-orbit observations reveal Kelvin-Helmholtz instability-driven bulk atmospheric ion escape. [PDF]

Sci Adv
Zhang C, Dong C, Poh G, Halekas J, Ma X, Suranga R, Hanley KG, Shen HW, Zhou H, Li X, Wang L, Gao J, Curry S, Mazelle C.   +13 more
europepmc   +1 more source

Global Ozone Reduction Driven by Dust‐Catalyzed Halogen Chemistry

AGU Advances, Volume 7, Issue 6, September 2026.
Abstract Tropospheric ozone (O3) influences climate and poses risks to human health and crop productivity. Its distribution is shaped by complex interactions between chemical production, transport, and loss processes, including reactions with naturally occurring halogens.
D. Meidan, A. Bossolasco, C. A. Cuevas, J. Villamayor, R. P. Fernandez, Q. Li, X. Fu, X. Sun, A. Saiz‐Lopez   +8 more
wiley   +1 more source