Results 111 to 120 of about 4,477,022 (227)

Stratospheric Aerosol From Above: Laser‐Ablation Mass Spectrometer Samples Polar Vortex Air for the First Time

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 20, 28 October 2026.
Abstract The JGR paper by Lawler et al. (2025, https://doi.org/10.1029/2025jd043530) marks a significant and historic first, the PALMS single‐particle chemical analysis sampling deep stratospheric Arctic vortex air for the first time. The analysis finds ∼90% of sulfate aerosol particles in the deepest stratosphere air (100–130 ppb N2O) are meteoric ...
G. W. Mann, R. Weigel, C. G. Bardeen, L. R. Marshall, C. V. Brodowsky, M. Norgren, O. B. Toon   +6 more
wiley   +1 more source

A Radio Science Experiment for Dragonfly to Investigate Titan's Rotation and Interior Structure

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract NASA's mission Dragonfly to Titan is scheduled for launch in 2028 with arrival in 2034 to study Titan's prebiotic chemistry and habitability. We propose a radio science experiment for Dragonfly, in which radiometric tracking of the rotorcraft from the Deep Space Network, already baselined for communications and navigation, is used as a ...
Flavio Petricca, Dustin Buccino
wiley   +1 more source

Development of Picosatellites’ Experimental Models and a Multi-Device Deployment System for Group Flight Testing in Atmospheric Conditions

Приборы и методы измерений
Multi-satellite orbital constellations enable transition from single, expensive spacecraft to unified platforms whose aggregate characteristics: global coverage, high reliability and resolution, ability to execute targeted tasks in parallel, flexibility,
A. S. Ilyushenko, E. D. Yushkevich, I. A. Kurakov, V. S. Baranova, A. A. Spiridonov, V. A. Saetchnikov   +5 more
doaj   +1 more source

Meter‐Scale Roughness of the Lunar Surface

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Small‐scale surface roughness is a key indicator of local geological processes, yet it has not previously been mapped globally on the Moon. We present global meter‐scale surface roughness maps generated from the Lunar Orbiter Laser Altimeter pulses, which record information about surface undulations within the instrument's ∼5 m individual ...
Hephzibah Christopher, Indujaa Ganesh
wiley   +1 more source

Drift‐Resonance Driven by Field Line Resonance Gradients: A Mechanism for Non‐Dispersive Microinjection Events

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Ultra‐low‐frequency waves in the magnetosphere often produce field line resonances with strong spatial gradients in wave amplitude. We analyze a form of drift resonance driven by these gradients near the resonant field line. This mechanism differs fundamentally from conventional gradient‐ and curvature‐driven drift resonance and predicts an ...
J. Liu, R. Rankin, A. W. Degeling, S. Yao, F. Fenrich   +4 more
wiley   +1 more source

The navigation for Formation flying of spacecraft

The navigation for Formation flying of spacecraft
Japan Aerospace Exploration Agency (JAXA) is planning the next generation magnetosphere observation mission called 'SCOPE' (cross-Scale Coupling in Plasma universE). SCOPE aims at observing the Earth's magnetotail with five satellites flying in formation to fully resolve the temporary and spatial distribution of the magnetospheric phenomena in the near
openaire   +1 more source

Detection and Analysis of an Upward Jet‐Like Electrical Discharge Intercepting a High‐Altitude Research Aircraft

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract During a 2023 field campaign, a NASA ER‐2 research aircraft intercepted an upward jet‐like electrical discharge at 20 km altitude over an intense tropical thunderstorm. This event was analyzed using airborne multispectral optical sensors, electric field mills, X‐band radar, passive microwave, and ground‐based radio networks.
T. J. Lang, A. Mezentsev, M. G. Quick, C. G. Amiot, M. Bateman, R. Blakeslee, S. Cummer, G. M. Heymsfield, R. A. Kroodsma, N. G. Lehtinen, D. Mach, M. Marisaldi, M. Walker McLinden, N. Østgaard, M. Pazos, D. A. S. Sarria, C. J. Schultz, T. D. Walker, O. van der Velde, K. Virts   +19 more
wiley   +1 more source

TerraSAR-X/TanDEM-X Formation Control - First Results from Commissioning and Routine Operations [PDF]

, 2011
This paper describes the TerraSAR-X / TanDEM-X formation control concept, which bases on the relative eccentricity / inclination vector separation method, implemented within GSOC’s flight dynamics system.
Schlepp, Benjamin, Kirschner, Michael, Kahle, Ralph   +2 more
core  

Formation flying of spacecrafts for monitoring and inspection

, 2009
Validerat; 20101217 (root)
openaire   +1 more source

Enhancement of Magnetic Flux Transferred to the Magnetotail Due to a Storm‐Time Kelvin‐Helmholtz Instability

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Along the flank magnetopause, magnetosheath flow interfaced with the relatively stationary magnetosphere produces strong flow shears, and the Kelvin‐Helmholtz instability (KHI) occurs. When the interplanetary magnetic field (IMF) is southward, anti‐parallel day‐side reconnection and KHI can interact, which may enhance the reconnection rate as ...
Brandon L. Burkholder, Katariina Nykyri, Xuanye Ma, Lauri Holappa, Harsha Gurram, Rachel C. Rice, David Sibeck, Dinesh K. V. Radhakrishnan   +7 more
wiley   +1 more source