Results 81 to 90 of about 34,527 (227)
Multi-frequency HF radar measurements of artificial F-region field-aligned irregularities [PDF]
Annales Geophysicae, 2004 We present radar backscatter power measurements using the CUTLASS HF radar at Hankasalmi, Finland from F-region field-aligned irregularities induced by HF radio pumping with the EISCAT Heating facility.
A. Senior +5 more
doaj +1 more source
MIMO Radar Ambiguity Properties and Optimization Using Frequency-Hopping Waveforms [PDF]
, 2008 The concept of multiple-input multiple-output (MIMO) radars has drawn considerable attention recently. Unlike the traditional single-input multiple-output (SIMO) radar which emits coherent waveforms to form a focused beam, the MIMO radar can transmit ...
Chen, Chun-Yang, Vaidyanathan, P. P.
core +2 more sources
ESC Heart Failure, Volume 12, Issue 2, Page 1151-1165, April 2025.Prediction of LVEF improvement in patients with HFrEF and HFmrEF following treatment with Sacubitril/Valsartan. Workflow of this study investigating the functional capacity improvement in response to Sacubitrail/Valsartsan in a real‐world scenario of heart failure treatment.
Florian Appenzeller +8 more
wiley +1 more source
Do oil and gas platforms off California reduce recruitment of bocaccio (Sebastes paucispinis) to natural habitat? An analysis based on trajectories derived from high-frequency radar [PDF]
, 2006 To investigate the possibility that oil and gas platforms may reduce recruitment of rockfishes (Sebastes spp.) to natural habitat, we simulated drift pathways termed “trajectories” in our model) from an existing oil platform to nearshore habitat using ...
Emery, Brian M. +4 more
core
Wave power measurements in the Celtic Sea using HF radar [PDF]
, 2017 : It is well established that HF radar systems located on the coast can measure surface currents from close to the coast to more than 100km offshore. They can also be used to simultaneously measure the ocean wave directional spectrum.
Wyatt, L.R.
core +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.Vertical‐looking radar provides a first multi‐year analysis of migratory bat phenology in Europe. Bat activity was lowest in winter, increased from spring, and peaked in summer, with similar timing of pre‐ and post‐maternity migrations across years.
Silvia Giuntini +5 more
wiley +1 more source
High-frequency ocean radar support for Tsunami Early Warning Systems
Geoscience Letters, 2018 A high-frequency (HF) ocean radar system is a shore-based remote sensing system to simultaneously monitor ocean surface currents, waves and wind far beyond the horizon.
Anna Dzvonkovskaya +3 more
doaj +1 more source
Global Policy, EarlyView.ABSTRACT The European Union's proposed Space Law aims to establish a unified approach for sustainable space activities across the EU. While the EU's satellite constellations contribute to sustainability efforts, they can also have negative environmental impacts.
Elena Cirkovic, Vitali Braun
wiley +1 more source
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.Nishinoshima is a volcanic island in the Ogasawara Arc that has exhibited intermittent activity since 2013, including four major eruptive episodes: 2013–2015 (Episode 1), 2017 (Episode 2), 2018 (Episode 3), and 2019–2020 (Episode 4). Previous studies reported a change in eruption style—from a Strombolian eruption with lava flows (Episode 1 to the early
Erika Tanaka +4 more
wiley +1 more source
PACE and EISCAT radar observations of short-lived flow bursts on the nightside [PDF]
Concurrent observations from two widely spaced radar experiments of quasi periodic flow bursts in the nightside are presented. The flow bursts closely resemble single radar observations reported by Williams et al.
Cowley, S. W. H. +5 more
core +1 more source