A5089052625- Ocean Waves and Remote Sensing
- Oceanographic and Atmospheric Processes
- Tropical and Extratropical Cyclones Research
- Climate variability and models
- Coastal and Marine Dynamics
- Wave and Wind Energy Systems
- Coastal and Marine Management
- Wind Energy Research and Development
- Geology and Paleoclimatology Research
- Cryospheric studies and observations
- Geophysics and Gravity Measurements
- Marine and fisheries research
- Seismic Waves and Analysis
- Arctic and Antarctic ice dynamics
- Coastal wetland ecosystem dynamics
- Marine and Offshore Engineering Studies
- Underwater Acoustics Research
- Seismic Imaging and Inversion Techniques
- Geological formations and processes
- Meteorological Phenomena and Simulations
- Global Energy and Sustainability Research
- Polar Research and Ecology
- Fish Ecology and Management Studies
- Methane Hydrates and Related Phenomena
- Marine animal studies overview
CSIRO Oceans and Atmosphere
2015-2024
Commonwealth Scientific and Industrial Research Organisation
2015-2024
Health Sciences and Nutrition
2015-2023
Australian Maritime College
2018
University of Tasmania
2003-2018
Bureau of Meteorology
2012-2014
Geoscience Australia
2005-2013
Collaboration for Australian Weather and Climate Research
2009-2012
Ollscoil na Gaillimhe – University of Galway
2004
Marine Institute
2004
The role waves play in modulating interactions between oceans and atmosphere is emphasized. All exchanges (e.g., momentum, energy, heat, mass, radiation fluxes) are influenced by the geometrical physical characteristics of ocean surface, which separates atmospheric oceanic boundary layers. A qualitative overview main relevant surface gravity wave–driven processes at air–sea interface that may have an important coupled climate system general layers particular provided.
We describe an innovative approach to estimate global changes in extreme wave conditions by 2100, as a result of projected climate change. generate synthetic dataset from ensemble models forced independent simulation winds, enhancing statistical confidence associated with conditions. Under two IPCC representative greenhouse gas emission scenarios (RCP4.5 and RCP8.5), we find that the magnitude 1 100-year significant height (Hs ) event increases 5 15% over Southern Ocean end 21st century,...
Understanding uncertainties in extreme wind-wave events is essential for offshore/coastal risk and adaptation estimates. Despite this, contemporary wave have not been assessed, projections are still limited. Here, we quantify, at global scale, the estimates across an ensemble of widely used reanalyses/hindcasts supported by observations. We find that 50-year return period heights ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msubsup> <mml:mi>H</mml:mi>...
Abstract The effect of interannual climate variability and change on the historic, directional wave Southern Hemisphere is presented. Owing to a lack in situ observations, determined from satellite altimetry global ocean models. Altimeter data span period 1985 present, with exception 2‐year gap 1989–1991. Interannual trends significant height are altimeter record (1991 present), dominant modes identified using an empirical orthogonal function (EOF) analysis. Significant heights Ocean...
Nearly all operational ocean models use air‐sea fluxes and the shear stratification to estimate upper boundary layer mixing rates. This approach implicitly parameterizes surface wave effects in terms of these inputs. Here we test this assumption using parallel experiments a lake with small waves open much bigger waves. Under same wind stress adjusting for buoyancy flux, find mixed average turbulent vertical kinetic energy typically twice that lake. The increase is consistent Langmuir...
Abstract This study provides a literature‐based comparative assessment of uncertainties and biases in global to world‐regional scale assessments current future coastal flood risks, considering mean extreme sea‐level hazards, the propagation these into floodplain, people assets exposed, their vulnerability. Globally, by far largest bias is introduced not human adaptation, which can lead an overestimation risk 2100 up factor 1300. But even when how societies will adapt rise dominate with 27...
Abstract Along open coasts, wind waves are a key driver of coastal changes and can be major contributors to hazards. Wind wave characteristics projected change in response climate change, notably due atmospheric circulation patterns the associated surface winds. Here, first‐order estimate 20‐yr mean setup changes, excluding extreme events subannual variability, is provided for sandy beaches along most world's coastline over middle end 21st century. Calculations based on an ensemble model...
Abstract This dataset, produced through the Coordinated Ocean Wave Climate Project (COWCLIP) phase 2, represents first coordinated multivariate ensemble of 21 st Century global wind-wave climate projections available (henceforth COWCLIP2.0). COWCLIP2.0 comprises general and extreme statistics significant wave height ( H S ), mean period T m direction θ ) computed over time-slices 1979–2004 2081–2100, at different frequency resolutions (monthly, seasonally annually). The full comprising 155...
Better understanding of the global wave climate is required to inform energy device design and large-scale deployment. Spatial variability in analysed here provide a range characteristic climates. K-means clustering was used split resource into 6 classes agnostic, data-driven method using data from ECMWF ERA5 reanalysis product. Classification two sets input were considered: simple set (based on significant height peak period) comprehensive including wide relevant parameters. Both...
Abstract Extreme surface ocean waves are often primary drivers of coastal flooding and erosion over various time scales. Hence, understanding future changes in extreme wave events owing to global warming is socio-economic environmental significance. However, our current knowledge potential high-frequency (defined here as having return periods less than 1 year) largely unknown, despite being strongly linked hazards across scales relevant management. Here, we present climate-modeling evidence,...
Abstract We present four 140-yr wind-wave climate simulations (1961–2100) forced with surface wind speed and sea ice concentration from two CMIP6 GCMs under different scenarios: SSP1–2.6 SSP5–8.5. A global three-grid system is implemented in WAVEWATCH III to simulate the wave–ice interactions Arctic Antarctic regions. The models perform well comparison satellite altimeter situ buoys climatology. traditional trend analyses demonstrates GCM-forced wave models’ ability reproduce main historical...
Abstract Historical trends in the direction and magnitude of ocean surface wave height, period, or are debated due to diverse data, time-periods, methodologies. Using a consistent community-driven ensemble global products, we quantify establish regions with robust multivariate fields between 1980 2014. We find that about 30–40% experienced seasonal mean extreme direction. Most Southern Hemisphere exhibited strong upward-trending heights (1–2 cm per year) periods during winter summer. Ocean...