Browsing Faculty of Mathematics and Natural Sciences by Title
Now showing items 9776-9795 of 9919
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Wave breaking in the BBM-equation
(Master thesis, 2019-04-02) -
Wave Breaking in Undular Bores with Shear Flows
(Journal article; Peer reviewed, 2021)It is well known that weak hydraulic jumps and bores develop a growing number of surface oscillations behind the bore front. Defining the bore strength as the ratio of the head of the undular bore to the undisturbed depth, ... -
Wave energy potential in the area of Sulafjorden and Breisundet
(Master thesis, 2020-04-07) -
Wave Extremes in the Northeast Atlantic
(Peer reviewed; Journal article, 2012-03)The objective of this study is to compute 100-yr return value estimates of significant wave height using a new hindcast developed by the Norwegian Meteorological Institute. This regional hindcast covers the northeast ... -
Wave loads on ocean infrastructure increase as a result of waves passing over abrupt depth transitions
(Journal article; Peer reviewed, 2022)Abrupt changes in water depth are known to lead to abnormal free-surface wave statistics. The present study considers whether this translates into abnormal loads on offshore infrastructure. A fully non-linear numerical ... -
Wave Measurements Using Ship Mounted Sensors as part of the One Ocean Expedition
(Master thesis, 2023-06-01)This thesis examines the design and post-processing aspects of wave measurements from ship mounted sensors. The wave measurements exhibit accuracy comparable to wave measuring drifters while offering enhanced spatial ... -
Wave response to an arbitrary motion of a load on an ice plate
(Master thesis, 2022-06-22) -
Wave runup estimates at gentle beaches in the northern Indian Ocean
(Master thesis, 2012-10-01)The aim of this study is to estimate the wave runup on selected beaches around the northern Indian Ocean. The runup has been estimated using ERA-Interim, which is the latest global atmospheric re-analysis produced by the ... -
Wave-shaped round functions and primitive groups
(Peer reviewed; Journal article, 2019)Round functions used as building blocks for iterated block ciphers, both in the case of Substitution-Permutation Networks (SPN) and Feistel Networks (FN), are often obtained as the composition of different layers. The ... -
Wavefield Migration Imaging of Moho Geometry and Upper Mantle Structure Beneath Southern New England
(Journal article; Peer reviewed, 2022)The crust and upper mantle beneath the New England Appalachians exhibit a large offset of the Moho across the boundary between Laurentia and accreted terranes and several dipping discontinuities, which reflect Paleozoic ... -
Waveform classification of airborne synthetic aperture radar altimeter over Arctic sea ice
(Peer reviewed; Journal article, 2013-08-19)Sea ice thickness is one of the most sensitive variables in the Arctic climate system. In order to quantify changes in sea ice thickness, CryoSat-2 was launched in 2010 carrying a Ku-band radar altimeter (SIRAL) designed ... -
A wavelet-entropy based segmentation of turbulence measurements from a moored shear probe near the wavy sea surface
(Peer reviewed; Journal article, 2019-12-17)In this study, we explore the applicability of a wavelet-entropy based segmentation technique in reduction of motion-induced contaminations in time-domain from subsurface turbulence measurements made by a moving shear ... -
Waves generated by moving loads on ice plates: Viscoelastic approximations
(Journal article; Peer reviewed, 2022)The paper investigates waves generated by the moving loads on ice plates floating on an incompressible fluid. Two different viscoelastic approximations are considered for the ice cover: A model depending on the strain-relaxation ... -
Wave–induced characteristics of atmospheric turbulence flux measurements
(Peer reviewed; Journal article, 2013)In this paper, we present the air–sea flux of momentum obtained with the eddy correlation method applied to data measured from a moored discus buoy deployed approximately 600 m off a research Air Sea Interaction Tower at ... -
Weak solutions and convergent numerical schemes of Brenner-Navier-Stokes equations
(Research report, 2015-01-20)Lately, there has been some interest in modifications of the compressible Navier-Stokes equations to include diffusion of mass. In this paper, we investigate possible ways to add mass diffusion to the 1-D Navier-Stokes ... -
Weakening Atlantic Niño-Pacific connection under greenhouse warming
(Peer reviewed; Journal article, 2019-08-21)Sea surface temperature variability in the equatorial eastern Atlantic, which is referred to as an Atlantic Niño (Niña) at its warm (cold) phase and peaks in boreal summer, dominates the interannual variability in the ... -
Weakening of Cold Halocline Layer Exposes Sea Ice to Oceanic Heat in the Eastern Arctic Ocean
(Journal article; Peer reviewed, 2020)A 15-yr duration record of mooring observations from the eastern (>70°E) Eurasian Basin (EB) of the Arctic Ocean is used to show and quantify the recently increased oceanic heat flux from intermediate-depth (~150–900 m) ... -
Weakening of the Atlantic Niño variability under global warming
(Journal article; Peer reviewed, 2022)The Atlantic Niño is one of the most important patterns of interannual tropical climate variability, but how climate change will influence this pattern is not well known due to large climate model biases. Here we show that ... -
Weathering of deep-sea hydrothermal sulfide deposits. Stability of heavy metals and implications for future mining activities
(Master thesis, 2016-12-20)During future mining operations on seafloor massive sulfide deposits, sulfidic material will be reworked and relocated at the seafloor, exposing the material to oxic conditions. In an oxic environment sulfidic material ... -
A Web-based Solid Waste Management System for Sierra Leone
(Master thesis, 2018-12-13)The generation of waste is a continuous process as long as human activities are going on in the world. To address the threats that waste poses to life in general, it is important to manage waste properly. Waste management ...