Results 101 to 110 of about 49,997 (277)

Geophysical tools for agricultural management: Trends, challenges, and opportunities

Vadose Zone Journal, Volume 24, Issue 4, July/August 2025.
Abstract Agrogeophysics is a convergence of proximal soil sensing and hydrogeophysics in which geophysical methods are used to describe soil patterns and dynamics that shape agronomic management (including precision agriculture). To fully realize its potential for optimizing agricultural production, current barriers and targets for future ...
Sophia M. Becker, Trenton E. Franz, Yufeng Ge, Joe D. Luck, Derek M. Heeren   +4 more
wiley   +1 more source

Deep Space Network Radio Science and Ground‐Based Planetary Radar in the Next Decade

Radio Science, Volume 60, Issue 7, July 2025.
Abstract The Deep Space Network (DSN) has been a core operational element of NASA's crewed and robotic exploration of the Solar System since the early 1960s. The primary role of the DSN has been to acquire telemetry and navigation data, but over the years, its radiometric and radar capabilities have expanded to form a system for obtaining unique ...
R. S. Park, J. E. Riedel, N. Rodriguez‐Alvarez, M. Brozovic, L. A. M. Benner, P. Vergados, D. Buccino, C. S. Jacobs, L. S. Locke, S. W. Asmar, R. Castano, T. J. W. Lazio, J. Jao, C. Lee   +13 more
wiley   +1 more source

Generative Models of Multichannel Data from a Single Example—Application to Dust Emission

The Astrophysical Journal, 2023
The quest for primordial B -modes in the cosmic microwave background has emphasized the need for refined models of the Galactic dust foreground. Here we aim at building a realistic statistical model of the multifrequency dust emission from a single ...
Bruno Régaldo-Saint Blancard, Erwan Allys, Constant Auclair, François Boulanger, Michael Eickenberg, François Levrier, Léo Vacher, Sixin Zhang   +7 more
doaj   +1 more source

WACCM Simulation of Polar Ozone Response to Relativistic Electron Precipitation

Geophysical Research Letters, Volume 52, Issue 11, 16 June 2025.
Abstract Various studies have been dedicated to quantifying the atmospheric chemical effects of energetic electron precipitation (EEP), but the contribution from relativistic electron precipitation (REP) was largely overlooked. Based on the precipitating fluxes estimated from Polar‐orbiting Observational Environmental Satellites, we quantify the REP ...
Yudi Pan, Wei Xu, Xudong Gu, Binbin Ni, Joshua M. Pettit, Hilde Nesse, Jingyuan Feng, Shiwei Wang, Wen Cheng, Haotian Xu, Wenchen Ma, Dongfang Zhai, Hanqing Shi, Robert A. Marshall   +13 more
wiley   +1 more source

Construction of Temperature Climate Data Records in the Upper Troposphere and Lower Stratosphere Using Multiple RO Missions From September 2006 to July 2023 at NESDIS/STAR

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 11, 16 June 2025.
Abstract We develop a new monthly zonal mean climatology (MMC) in the upper troposphere and lower stratosphere from September 2006 to July 2023 using the dry temperature profiles from multiple global navigation satellite system (GNSS) radio occultation (RO) missions processed by the GNSS RO Science and Data Center (SDC) at the NOAA Center for Satellite
Jun Zhou, Shu‐Peng Ho, Xinjia Zhou, Xi Shao, Guojun Gu, Yong Chen, Tung‐Chang Liu, Xin Jing   +7 more
wiley   +1 more source

Perspectives for Cosmological Reionization From Future CMB and Radio Projects

Frontiers in Astronomy and Space Sciences, 2018
In spite of the great recent results from the Planck satellite supporting cosmological reionization scenarios almost compatible with astrophysical models for the evolution of structure, galaxy and star formation, the full understanding of the ...
Tiziana Trombetti, Tiziana Trombetti, Carlo Burigana, Carlo Burigana, Carlo Burigana   +4 more
doaj   +1 more source

Constraints on Dark Matter Interactions with Standard Model Particles from Cosmic Microwave Background Spectral Distortions. [PDF]

Physical Review Letters, 2015
We propose a new method to constrain elastic scattering between dark matter (DM) and standard model particles in the early Universe. Direct or indirect thermal coupling of nonrelativistic DM with photons leads to a heat sink for the latter.
Yacine Ali-Haïmoud, J. Chluba, M. Kamionkowski   +2 more
semanticscholar   +1 more source

Cosmological Dynamics of Interacting Dark Energy and Dark Matter in f(Q)$f(Q)$ Gravity

Fortschritte der Physik, Volume 73, Issue 5, May 2025.
Abstract In this work, the behavior of interacting dark energy (DE) and dark matter (DM) within a model of f(Q)$f(Q)$ gravity is explored, employing the standard framework of dynamical system analysis. The power‐law f(Q)$f(Q)$ model is considered, incorporating two different forms of interacting DE and DM: 3αHρm$3\alpha H\rho _m$ and α3HρmρDE$\frac ...
Gaurav N. Gadbail, Simran Arora, Phongpichit Channuie, P. K. Sahoo   +3 more
wiley   +1 more source

Gauging the cosmic microwave background [PDF]

Physical Review D, 2008
17 pages, 5 figures; minor changes; version accepted to Phys.
J. P. Zibin, Douglas Scott
openaire   +2 more sources

The lensing and temperature imprints of voids on the cosmic microwave background. [PDF]

, 2016
We have searched for the signature of cosmic voids in the cosmic microwave background (CMB), in both the Planck temperature and lensing-convergence maps; voids should give decrements in both.
Yan-Chuan Cai, M. Neyrinck, Qingqing Mao, J. Peacock, I. Szapudi, A. Berlind   +5 more
semanticscholar   +1 more source