Results 71 to 80 of about 1,033,242 (304)

Research on Characteristics of the Hermite–Gaussian Correlated Vortex Beam

open access: yesJournal of Marine Science and Engineering
In this work, a new beam named the Hermite–Gaussian correlated vortex beam (HGCVB) is introduced. The intensity and coherence of this HGCVB in oceanic turbulence are analyzed.
Rui Cong   +5 more
doaj   +1 more source

Wave dispersion in moderate channel turbulence

open access: yesScientific Reports, 2023
We study channel turbulence by interpreting its vorticity as a random sea of ocean wave packet analogues. In particular, we investigate the ocean-like properties of vortical packets applying stochastic methods developed for oceanic fields.
Chiara Pilloton   +3 more
doaj   +1 more source

Seismic Sequence Stratigraphy Applied to Reservoir Recognition and Evolution on Marine Carbonatic Ramp—Macaé Group (Albian to Cenomanian) of Campos Basin

open access: yesGeological Journal, EarlyView.
A classic oil producing interval of the Campos Basin—Macaé Group is revisited through seismic stratigraphic analysis, providing a stratigraphic framework, characteristic depositional and relative time positioning for several complex structural settings.
Renata Alvarenga   +12 more
wiley   +1 more source

Bias Correction of ERA5 Temperature Across Five Topoclimatic Clusters: A Comparative Evaluation of Four Methods

open access: yesInternational Journal of Climatology, EarlyView.
ERA5 near‐surface temperature over South America exhibits systematic cold biases in daily maximum temperature and warm biases in daily minimum temperature. To address the continent's strong climatic and topographic heterogeneity, South America was partitioned into five topoclimatic clusters, and four bias‐correction approaches were evaluated. The Multi‐
José Roberto Rozante, Gabriela Rozante
wiley   +1 more source

Setting the Record Straight: The Intellectual Legacy of H. Igor Ansoff (1918–2002)

open access: yesStrategic Change, EarlyView.
ABSTRACT This study presents a comprehensive annotated bibliography of H. Igor Ansoff's intellectual contributions, addressing significant gaps in existing citation databases such as Scopus and Web of Science, which capture only 9 to 15 percent of his work.
Richard W. Puyt
wiley   +1 more source

Wake sorting, selective predation and biogenic mixing: potential reasons for high turbulence in fish schools [PDF]

open access: yesPeerJ, 2013
There has been debate about animals’ contribution to ocean circulation, called biomixing, or biogenic mixing. The energy input of schooling fish is significant but the eddies may be too small; so energy is dissipated as heat before impacting oceanic ...
Jay Willis
doaj   +2 more sources

Drivers of stability in plankton communities: dominance, asynchrony, and averaging effects across temporal, spatial and trophic scales

open access: yesOikos, EarlyView.
The origins of ecosystem stability have long intrigued ecologists. Recent theoretical advancements highlight three primary mechanisms driving stability: dominance, asynchrony and averaging. While plant community stability has been extensively studied, our understanding of marine community stability remains limited. Plankton, as key components of marine
Guido Occhipinti   +4 more
wiley   +1 more source

Who Holds the Strings? Hybrid Governance in Small States

open access: yesPublic Administration and Development, EarlyView.
ABSTRACT This paper examines how governance in Caribbean small island developing states (SIDS) is reshaped by enduring postcolonial legacies, recurrent crises, and deepening global interdependence. It highlights turbulence, understood as a structural, generative condition of fragmented and recombining authority, as its central analytical contribution ...
Dana‐Marie Ramjit
wiley   +1 more source

Simulation of transmission characteristics of oceanic wireless optical communication systems based on orbital angular momentum multiplexing with space-time coding

open access: yesTongxin xuebao, 2020
In order to mitigate the crosstalk caused by oceanic turbulence in the underwater wireless orbital angular momentum multiplexing optical communication system, the application of space-time coding technology in the system was studied.Based on Rytov ...
Xiaoli YIN   +3 more
doaj   +2 more sources

Lagrangian analysis of two flavours of Central European heatwaves: Formation under omega blocking versus initiation by subtropical ridges

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
We investigate whether Central European heatwaves (HWs) forming under omega blocking differ from those enabled by subtropical ridges, in terms of both air‐mass origin and processes warming air parcels along their way. Using ERA5‐based backward trajectories and a Lagrangian temperature anomaly decomposition, we identify significant differences in the ...
Alexander Lemburg   +3 more
wiley   +1 more source

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