Results 91 to 100 of about 1,033,242 (304)

Scaling turbulence drives the general circulation

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The NOAA Gulfstream SP4, which deployed the GPS dropsondes over the NE Pacific Ocean as part of the Winter Storms Project during the January–March periods of 2004, 2005 and 2006. Abstract Statistical multifractal analysis of airborne and dropsonde observations is used to show that persistence of velocity after molecular collisions breaks the continuous
Adrian F. Tuck
wiley   +1 more source

Mode Propagation of Elliptical Perfect Optical Vortex in Turbulent Oceanic Channel

Photonics
As extensions of circular symmetric vortex beams, elliptical vortex beams with more diverse field forms are worthy of attention. In this paper, we investigate the mode propagation characteristics of an elliptical perfect optical vortex (EPOV) beam in ...
Xiaowan Peng, Lin Yu, Yong Zhao, Lifa Hu
doaj   +1 more source

Transmittance of finite-energy frozen beams in oceanic turbulence

Results in Physics, 2019
Frozen waves have the good characteristic for resisting the diffraction and absorption in absorbing medium, which can solve the low transmittance of light waves in seawater.
Shibao Deng, Dongyu Yang, Yuan Zheng, Lifa Hu, Yixin Zhang   +4 more
doaj   +1 more source

Scale dependence of the marine atmospheric boundary‐layer response to ocean surface‐temperature variability in the EUREC4$$ {\mathrm{EUREC}}^4 $$A region

Quarterly Journal of the Royal Meteorological Society, EarlyView.
With a minimal physics model and a high‐resolution fully 3D simulation, we demonstrate that the marine atmospheric boundary layer (MABL) response to sea‐surface temperature (SST) variability displays a dependence on the horizontal scales of motion.
Alessandro Storer, Matteo Borgnino, Claudia Pasquero, Agostino Niyonkuru Meroni   +3 more
wiley   +1 more source

The physical and synoptic‐dynamical differences between warm days, hot days, and heatwaves during summer in Victoria, Australia

Quarterly Journal of the Royal Meteorological Society, EarlyView.
During the day, there is composite mean cold advection in the boundary layer on warm days (WDs), hot days (HDs) and heatwaves (HWs). There is weaker surface‐sensible heating on HDs and HWs. A nocturnal jet advects warm air on HDs and HWs. There is a strong and slow‐moving upper‐level anticyclone on HWs.
Qinuo Huang, Michael J. Reeder, Christian Jakob, Malcolm J. King   +3 more
wiley   +1 more source

Further development of adaptive parameter tuning in the numerical weather prediction models of Deutscher Wetterdienst

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The introduction of adaptive parameter tuning in the numerical weather prediction models of DWD in 2022 substantially improved the forecast quality of near‐surface variables like 2‐m temperature and 2‐m humidity. Since 2023, refinements and extensions, primarily affecting the surface evaporation and its diurnal cycle, have led to further advances ...
Günther Zängl
wiley   +1 more source

Evolution of sea fog based on meteorological and oceanographic observations during FATIMA Yellow Sea campaign

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study presents a conceptual framework linking sea‐water temperature Tw gradients to the formation and persistence of sea fog in the southeastern Yellow Sea. Over cold waters maintained by tidal mixing, downward latent heat flux enhances lower‐level stability and sustains persistent sea fog, whereas over warmer waters, upward fluxes and thermal ...
Jae‐yong Lee, Kyung‐Il Chang, Kyung Man Kim, Ismail Gultepe, Harindra J. S. Fernando   +4 more
wiley   +1 more source

Research on the Backscattering Prediction Mechanism for Underwater Turbulent Channels

Applied Sciences
In the field of underwater laser detection, turbulence causes beam wandering and intensity scintillation, which subsequently alter the angle of incidence and ultimately degrade the quality of the target echo signal.
Yongjie Li, Jingjing Luo, Siguang Zong, Mengxue Lin, Shaopeng Yang   +4 more
doaj   +1 more source

Nanocellulose‐based hydrogel membranes for underwater osmotic actuators

Responsive Materials, EarlyView.
The review comprehensively summarizes the research progress of nanocellulose‐based hydrogel membranes for underwater osmotic actuators, from the building blocks of nanocelluloses to the underwater osmotic actuation mechanism and applications, and outlines their challenges and perspectives, aiming to facilitate their applications in underwater remote ...
Qingchen Li, Zhengru Wang, Liming Zhang, Tobias Benselfelt, Minghua Huang, Jingyi Wu, Huanlei Wang, Lars Wågberg, Mahiar Max Hamedi, Feng Xu, Weiqian Tian   +10 more
wiley   +1 more source

Performance Evaluation of Modulating Retro-Reflector Underwater Wireless Optical Communication Links in Oceanic Turbulence

IEEE Photonics Journal
Although Modulating retro-reflector (MRR) technology offers a promising low-power solution for underwater wireless optical communication (UWOC), its performance under challenging oceanic turbulence has not been comprehensively analyzed.
Ying Du, Jingyuan Wang, Zhiyong Xu, Jianhua Li   +3 more
doaj   +1 more source