Results 91 to 100 of about 2,005,140 (156)

The Observational Signatures of Cosmic Strings [PDF]

, 2009
Cosmic strings were postulated by Kibble in 1976 and, from a theoretical point of view, their existence finds support in modern superstring theories, both in compactification models and in theories with extended additional dimensions.
Riccio, Giuseppe
core   +1 more source

Arctic Warming Suppressed by Remnant Glacial Ice Sheets in Past Interglacials

Geophysical Research Letters
Time slice experiments for past interglacial climates of Marine Isotope Stage (MIS)1, MIS5e, and MIS11 are simulated using an atmosphere‐ocean‐vegetation coupled general circulation model with prescribed remnant ice sheet distributions. We examine Arctic
Lynn A. Hirose, Ayako Abe‐Ouchi, Wing‐Le Chan, Ryouta O'ishi, Masakazu Yoshimori, Takashi Obase   +5 more
doaj   +1 more source

Sliding Relations for Glacier Slip With Cavities Over Three‐Dimensional Beds

Geophysical Research Letters, 2020
Results of glacier flow models and associated estimates of future sea level rise depend sensitively on the prescribed relation between shear stress and slip velocity at the glacier bed.
Christian Helanow, Neal R. Iverson, Lucas K. Zoet, Olivier Gagliardini   +3 more
doaj   +1 more source

The Impacts of Tropospheric Gravity Wave‐Generated MSTIDs on Skywaves at Mid‐latitude North American Sector Observed and Modeled Using SuperDARN HF Radars

Radio Science, Volume 61, Issue 9, September 2026.
Abstract Trans‐ionospheric high frequency (HF: 3–30 MHz) response to atmospheric gravity waves (GWs) is studied in the middle‐latitude ionosphere in relation to thunderstorm activity. SuperDARN HF radar observations are compared against the model simulations to quantify the impact of GW‐generated medium‐scale traveling ionospheric disturbances (MSTID ...
S. Chakraborty, P. A. Inchin, S. Debchoudhury, B. Bergsson, M. Zettergren, J. M. Ruohoniemi   +5 more
wiley   +1 more source

Some trends in the philosophy of physics [PDF]

, 2011
A short review of some recent developments in the philosophy of physics is presented. I focus on themes which illustrate relations and points of common interest between philosophy of physics and three of its 'neighboring' fields: Physics, metaphysics and
Zinkernagel, Henrik, Henrik Zinkernagel, Zinkernagel , Henrik   +2 more
core   +1 more source

Natural Soils‐Based Oxidation Mitigates Methane Leakage From Integrity Compromised Legacy Wells

Geophysical Research Letters
An increasing number of legacy petroleum wells are reported to suffer integrity failure, releasing methane (CH4) into the subsurface and atmosphere. Subsurface released methane is reactively transported toward ground surface with a portion converted to ...
Aaron G. Cahill, James McClure, Iain de Jonge‐Anderson   +2 more
doaj   +1 more source

Sentinel‐1 Detects Firn Aquifers in the Greenland Ice Sheet

Geophysical Research Letters, 2020
Firn aquifers in Greenland store liquid water within the upper ice sheet and impact the hydrological system. Their location and area have been estimated with airborne radar sounder surveys (Operation IceBridge, OIB).
I. Brangers, H. Lievens, C. Miège, M. Demuzere, L. Brucker, G. J. M. De Lannoy   +5 more
doaj   +1 more source

Correlation of High‐Latitude Scintillation With Auroral Precipitation: Case Studies Using GNSS Radio Occultation Data From PlanetiQ

Space Weather, Volume 24, Issue 9, September 2026.
Abstract This study presents a survey of high‐latitude ionospheric scintillation using GNSS radio occultation (RO) data from the PlanetiQ satellite. The analysis examines 483 high‐latitude RO tracks between January and May 2023, with 371 tracks exhibiting scintillation events.
Margaret W. Chen, Endawoke Yizengaw, James H. Hecht, Paul Straus, Charles S. Carrano, Tibor Durgonics, Keith M. Groves   +6 more
wiley   +1 more source

The cosmic microwave background bispectrum from the non-linear evolution of the cosmological perturbations [PDF]

, 2010
International audienceThis article presents the first computation of the complete bispectrum of the cosmic microwave background temperature anisotropies arising from the evolution of all cosmic fluids up to second order, including neutrinos ...
Bernardeau, F., Jean-Philippe Uzan, Francis Bernardeau, Cyril Pitrou, Uzan, Jean-Philippe, Bernardeau, Francis, Pitrou, C., Uzan, J., Pitrou, Cyril   +8 more
core   +1 more source

Climate‐Induced Polar Motion: 1900–2100

Geophysical Research Letters
It has been demonstrated that the motion of the Earth's rotational pole with respect to the crust—termed polar motion—is increasingly influenced by barystatic processes, that is, continental‐ocean mass redistribution due to melting of polar ice sheets ...
Mostafa Kiani Shahvandi, Benedikt Soja
doaj   +1 more source