Results 41 to 50 of about 645 (179)
Global Change Biology, Volume 32, Issue 10, October 2026.Each year, billions of animals undertake migratory journeys, resulting in large transfers of energy across the globe. Population declines in many migratory species have affected these, reducing ecosystem resilience. We quantify the value lost and show how conserving migratory species can contribute to climate change adaptation and mitigation, and ...
Hannah F. R. Hereward +7 more
wiley +1 more source
Remote Sensing, 2023 The amplitude and phase errors in array elements lead to uncertainties in the estimation of arrival angles (DOA), which, in turn, affect the accuracy of current measurements for high-frequency surface wave radar (HFSWR). To address this issue, this paper
Wei Fu +5 more
doaj +1 more source
The Journal of Engineering, 2019 Radars operating in the high-frequency (HF) band can exploit propagation modes other than line-of-sight and are hence widely employed to provide over-the-horizon surveillance and remote sensing.
Stuart Anderson
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Smart Molecules, Volume 4, Issue 3, September 2026.A groundbreaking dual‐donor crosslinking strategy was reported to significantly enhance the thermal stability, achieving remarkable EO coefficients (257–301 pm/V), glass transition temperatures (Tg) ranging from 107–187°C, and ultrahigh chromophore densities (3.73–4.26 × 10²⁰ molecules/cm³) with exceptional long‐term stability after 500 h at 85°C ...
Yu Zhang +7 more
wiley +1 more source
Reviews of Geophysics, Volume 64, Issue 3, September 2026.Abstract Understanding the coastal zone of the Antarctic Ice Sheet (AIS), where it interacts with the Southern Ocean and warmer air masses, is crucial for predicting Antarctica's influence on the global climate and sea level. This region has multiple tipping mechanisms that could trigger large, rapid, and potentially irreversible changes in the AIS ...
Kenichi Matsuoka +79 more
wiley +1 more source
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 +5 more
wiley +1 more source
Study on the Detectability of the Sky-Surface Wave Hybrid Radar
Journal of Applied Mathematics, 2014 Working in the HF (high-frequency) band and the transmitter and receiver locating separately, the sky-surface wave hybrid radar both has the capabilities of the OTHR (over-the-horizon radar) and the advantage of the bistatic radar. As the electromagnetic
Hou Chengyu +3 more
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Near‐Surface Ocean Current and Its Response to Wind Forcing
Journal of Geophysical Research: Oceans, Volume 131, Issue 9, September 2026.Abstract Ocean currents near the air‐sea interface are critical for understanding boundary layer processes and advancing coupled models. The near‐surface currents mediate air–sea fluxes and govern the transport of buoyant materials, yet the uppermost meter of the ocean remains sparsely observed and poorly represented in models.
Junzhe Liu +2 more
wiley +1 more source
Knowledge-Based Multitarget Ship Tracking for HF Surface Wave Radar Systems [PDF]
IEEE Transactions on Geoscience and Remote Sensing, 2015 These last decades spawned a great interest toward low-power high-frequency (HF) surface-wave (SW) radars for ocean remote sensing. By virtue of their over-the-horizon coverage capability and continuous-time mode of operation, these sensors are also effective long-range early warning tools in maritime situational awareness applications providing an ...
Gemine Vivone +2 more
openaire +4 more sources
Tectonics, Volume 45, Issue 9, September 2026.Abstract We present evidence of a previously unrecognized east‐west‐trending normal fault, named the Parguera Fault, in southwest Puerto Rico. The fault is located at the northwestern edge of seismicity from the southwest Puerto Rico seismic sequence that began in 2019, near the coastal town of La Parguera.
Jessica Thompson Jobe +12 more
wiley +1 more source