WAVE DYNAMICS AND ITS IMPACT TO WAVE CLIMATE PROJECTION

Impacts and adaptations of climate change have been studied in various fields. In order to assess the impacts of climate change on coastal areas, it is necessary to evaluate how wave change due to climate changes. Projections of global wave climate have been carried out by some research groups for next IPCC report. Projection of wave climate contains uncertainties, such as scenario uncertainty, GCM uncertainty and wave model uncertainty. Impacts and adaptations of climate change have been studied in various fields. In order to assess the impacts of climate change on coastal areas, it is necessary to evaluate how wave change due to the climate changes. Projections of global wave climate have been carried out by some research groups for next IPCC report. Projection of wave climate contains uncertainties, such as scenario uncertainty, GCM uncertainty and wave model uncertainty. The uncertainties need to be estimated for reliable projections. In this study, wave model uncertainty was evaluated. Global wave hindcasts were conducted using SWAN with four different models of source terms and the impacts of different wave models on global long-term wave statistics were made clear. Furthermore, the global characteristics of differences in long-term wave statistics due to different models were compared with the result of global wave climate projection (Mori et al., 2010). Global long-term wave statistics are varied depending on choice of formula of Sin and Swc rather than that of Snl4. The uncertainty is larger in eastern lower latitude of ocean especially in the Pacific where swells dominate. On the other hand, the uncertainty of future wave climate change due to wave model is negligibly small in higher latitude where wind-waves dominate.

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EQUILIBRIUM MODELING OF CURRENT AND FUTURE BEACH EVOLUTION: VOUGOT BEACH, FRANCE

Coastal Engineering Proceedings ◽

10.9753/icce.v36v.sediment.17 ◽

2020 ◽

pp. 17

Author(s):

Teddy Chataigner ◽

Marissa Yates ◽

Nicolas Le Dantec ◽

Serge Suanez ◽

France Floch ◽

...

Keyword(s):

Climate Change ◽

Morphological Changes ◽

Wave Climate ◽

Optimal Choice ◽

Physical Processes ◽

Change Models ◽

Spatial And Temporal Scales ◽

Shoreline Evolution ◽

Impacts Of Climate Change

The impacts of climate change, including sea level and wave climate changes, may increase future erosion risks. Thus, it is important to improve knowledge of the dominant physical processes controlling medium- to long-term shoreline evolution, as well as the performance of beach evolution models reproducing past observations and predicting future changes. Empirical equilibrium beach change models may be an optimal choice at these spatial and temporal scales. Here, morphological changes at Vougot Beach (Brittany, France) are analyzed by evaluating the cross-shore evolution of contour elevations (-1 to 6m) along six intertidal beach profiles using observations and an equilibrium beach change model, and then three methods for estimating the impacts of climate change are applied and compared.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/p70KuzjR1kU

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Variation in the global-scale impacts of climate change on crop productivity due to climate model uncertainty and adaptation

Agricultural and Forest Meteorology ◽

10.1016/j.agrformet.2012.07.006 ◽

2013 ◽

Vol 170 ◽

pp. 183-194 ◽

Cited By ~ 93

Author(s):

Tom Osborne ◽

Gillian Rose ◽

Tim Wheeler

Keyword(s):

Climate Change ◽

Model Uncertainty ◽

Climate Model ◽

Crop Productivity ◽

Global Scale ◽

Climate Model Uncertainty ◽

Impacts Of Climate Change

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Impacts of Climate Change on Extreme Wave Climate Along the Western Coast of Sri Lanka

Coastal Management ◽

10.1680/cm.61149.119 ◽

2016 ◽

Author(s):

R. M. J. Bamunawala ◽

S. S. L. Hettiarachchi ◽

S. P. Samarawickrama ◽

P. N. Wikramanayake ◽

Roshanka Ranasinghe

Keyword(s):

Climate Change ◽

Sri Lanka ◽

Wave Climate ◽

Western Coast ◽

Extreme Wave ◽

Impacts Of Climate Change

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Wave climate change in the Gulf of Bothnia

10.5194/egusphere-egu21-9808 ◽

2021 ◽

Author(s):

Jan-Victor Björkqvist ◽

Jani Särkkä ◽

Hedi Kanarik ◽

Laura Tuomi

Keyword(s):

Climate Change ◽

Wave Model ◽

Wave Climate ◽

Atmospheric Forcing ◽

Simulation Data ◽

Significant Wave ◽

Gulf Of Bothnia ◽

Wave Heights ◽

Significant Wave Heights ◽

Projected Changes

<p>Wave climate change in the Gulf of Bothnia in 2030&#8211;2059 was investigated using regional wave climate projections. For the simulations we used wave model WAM. As the atmospheric forcing for the wave model we had three global climate scenarios (HADGEM2-ES, MPI-ESM, EC-EARTH) downscaled with RCA4-NEMO regional model. The ice concentration for the wave model was obtained from NEMO ocean model simulations using the same atmospheric forcing. We used both RCP4.5 and RCP8.5 greenhouse gas scenarios. The spatial resolution of the simulation data was 1.8 km, enabling detailed analyses of the wave properties near the coast. From the simulation data we calculated statistics and return levels of significant wave heights using extreme value analysis, and assessed the projected changes in the wave climate in the Gulf of Bothnia. The projected increase in the significant wave heights is mainly due to the decreasing ice cover, especially in the Bothnian Bay. Projected changes in the most prevalent wind direction impacts the spatial pattern of the wave heights in the Bothnian Sea.</p>

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Sustainable land use for adaptation to long term impacts of climate change in Himalaya

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1307/6/34/342007 ◽

2009 ◽

Vol 6 (34) ◽

pp. 342007

Author(s):

Prakash Chandra Tiwari

Keyword(s):

Climate Change ◽

Land Use ◽

Sustainable Land Use ◽

Impacts Of Climate Change

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Impacts of climate change, population growth, and urbanization on future population exposure to long-term temperature change during the warm season in China

Environmental Science and Pollution Research ◽

10.1007/s11356-019-07238-9 ◽

2020 ◽

Vol 27 (8) ◽

pp. 8481-8491 ◽

Cited By ~ 1

Author(s):

Wei Zhang ◽

Ying Li ◽

Zhuang Li ◽

Xin Wei ◽

Ting Ren ◽

...

Keyword(s):

Climate Change ◽

Population Growth ◽

Temperature Change ◽

Warm Season ◽

Population Exposure ◽

Future Population ◽

Impacts Of Climate Change

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Wave climate in the Arkona Basin, the Baltic Sea

Ocean Science ◽

10.5194/os-8-287-2012 ◽

2012 ◽

Vol 8 (2) ◽

pp. 287-300 ◽

Cited By ~ 22

Author(s):

T. Soomere ◽

R. Weisse ◽

A. Behrens

Keyword(s):

Baltic Sea ◽

Wave Height ◽

Wave Model ◽

Wave Climate ◽

Wind Fields ◽

The Baltic Sea ◽

Wave Heights ◽

The Baltic ◽

Basic Features

Abstract. The basic features of the wave climate in the Southwestern Baltic Sea (such as the average and typical wave conditions, frequency of occurrence of different wave parameters, variations in wave heights from weekly to decadal scales) are established based on waverider measurements at the Darss Sill in 1991–2010. The measured climate is compared with two numerical simulations with the WAM wave model driven by downscaled reanalysis of wind fields for 1958–2002 and by adjusted geostrophic winds for 1970–2007. The wave climate in this region is typical for semi-enclosed basins of the Baltic Sea. The maximum wave heights are about half of those in the Baltic Proper. The maximum recorded significant wave height HS =4.46 m occurred on 3 November 1995. The wave height exhibits no long-term trend but reveals modest interannual (about 12 % of the long-term mean of 0.76 m) and substantial seasonal variation. The wave periods are mostly concentrated in a narrow range of 2.6–4 s. Their distribution is almost constant over decades. The role of remote swell is very small.

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