Results 111 to 120 of about 3,876 (302)

A framework to evaluate and identify development requirements for land‐surface models at km‐scale resolution: Application to a semi‐arid and mountainous region

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This article provides a first evaluation of land‐surface models at the km‐scale resolutions at which they are used in weather and Earth‐system models. At these resolutions, the lateral transfers of water that organize landscapes play an important role in predicting evaporation correctly. Riparian processes and human water management for irrigation need
Jan Polcher, Julie Collignan, Juan Pablo Sierra Perez, Gabriele Arduini, Sophie Bastin, Martin Best, Aaron Boone, Manel Bravo, Francesca Covella, Jasper M. C. Denissen, Cenlin He, Simon Munier, Marc Prange, Elena Shevliakova   +13 more
wiley   +1 more source

Chaotic Variability of Ocean Heat Content: Climate-Relevant Features and Observational Implications

Oceanography, 2018
Global ocean models that admit mesoscale turbulence spontaneously generate interannual-to-multidecadal chaotic intrinsic variability in the absence of atmospheric forcing variability at these timescales.
Thierry Penduff , Guillaume Sérazin , Stéphanie Leroux, Sally Close , Jean-Marc Molines , Bernard Barnier , Laurent Bessières, Laurent Terray , Guillaume Maze   +8 more
doaj   +1 more source

The role of the synoptic‐scale conditions in driving fog and mist during the FATIMA July 2022 Sable Island Field program

Quarterly Journal of the Royal Meteorological Society, EarlyView.
ERA5 hourly 325‐m and 1512‐m (a) convergence and (b) vertical motion (actually pressure change with sign reversed to compare with convergence) over Sable Island around the time of an event. The mist (green) and fog (red) occurrences at the surface station are shown at the bottom of the figures. A 325‐m fitted line convergence was positive for the first
Clive E. Dorman, Darko Koračin, Reneta Dimitrova, Ismail Gultepe, Sebastian W. Hoch, Jesus Ruiz‐Plancarte, Qing Wang, Alexei Perelet, H. J. S. Fernando   +8 more
wiley   +1 more source

MIMO techniques for robust underwater optical wireless communications by mitigating oceanic turbulence and transceiver misalignment

Scientific African
By using Binary Phase-Shift Keying (BPSK) modulation with heterodyne detection, we present in this paper an analytical approach to evaluate the effect of oceanic turbulence and pointing errors effects on an Underwater Wireless Optical Communication (UWOC)
Abdeslam Fakchich, M. Bouhadda, A. Feraoun, E.B. Tazi, R. Alami, F.M. Abbou, L. Bouanane, F. Abdi   +7 more
doaj   +1 more source

Enabling Under Ice Glider Operations: A Backseat Driver Approach

Journal of Field Robotics, EarlyView.
ABSTRACT Polar Oceans are key locations for forcing global ocean circulation, influencing both global climate and biogeochemical cycles. Due to restricted access to these seasonally and perennially ice‐covered regions, these areas are severely undersampled.
Yaomei Wang, Benjamin Allsup, Georgios Salavasidis, Stephen Woodward, Adeniyi Adenaya, Mike Smart, Alexis Johnson, Felipe Marques Dos Santos, Jake Ludgate, Daniel Matterson, Alvaro Lorenzo, J. Alexander Brearley, Alexander Brian Phillips   +12 more
wiley   +1 more source

In Situ Measurement of Oceanic 3D-Volume Two-Component Turbulence Based on Holographic Astigmatic Particle Tracking Velocimetry

Journal of Marine Science and Engineering
Ocean turbulence, a fundamental process influencing marine hydrodynamics, holds significant guiding implications for the development of multiple disciplines and has emerged as a research hotspot in ocean science in recent years.
Zhou Zhou, Buyu Guo, Wensheng Jiang, Changwei Bian, Fangjing Deng   +4 more
doaj   +1 more source

Seasonal Variation in Carbon Dynamics in the Lower Tocantins River: Influence of Discharge and Environmental Drivers

River Research and Applications, EarlyView.
ABSTRACT Tropical rivers play a key role in regional carbon budgets, yet greenhouse gas (GHG) dynamics in regulated systems remain poorly understood. This study investigates the seasonal variability of carbon dioxide (CO2) and methane (CH4) concentrations, isotopic composition (δ13C), and river‐atmosphere fluxes in the lower Tocantins River, a ...
Maria Gabriella da S. Araújo, Vania Neu, Victor M. Guedes, Marcelo Z. Moreira, Nicholas D. Ward, Alex V. Krusche   +5 more
wiley   +1 more source

Global Variability of the Wavenumber Spectrum of Oceanic Mesoscale Turbulence

, 2011
The wavenumber spectra of sea surface height from satellite altimeter observations have revealed complex spatial variability that cannot be explained by a universal theory of mesoscale turbulence.
Lee-Lueng Fu, Yongsheng Xu
core   +1 more source

Integrated LEO Constellation and In‐Cabin Distribution System for Continuous Aircraft 5G Connectivity

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency (>$$ > $$ 500 ms) and inadequate coverage at high ...
Raúl Parada, Victor Monzon Baeza, Carlos Horcajo Fernández de Gamboa, Rocío Serrano Camacho, Carlos Monzo   +4 more
wiley   +1 more source

Turbulence of internal gravity waves in the laboratory

Comptes Rendus. Physique
In this article, we review the recent efforts of several teams that aimed at observing in the laboratory a turbulence of internal gravity waves in a density stratified fluid in the weakly non-linear regime.
Cortet, Pierre-Philippe, Lanchon, Nicolas   +1 more
doaj   +1 more source