The WCRP-JCOMM Workshop on Coordinated Global Wave Climate Projections
COWCLIP

Workshop

11 - 13 April 2011

Location

World Meteorological Organization
Case Postale 2300
CH-1211 Geneva
Switzerland


Organiser(s) & Staff
Organiser
Participation

Open attendance.

The WCRP-JCOMM Workshop on Coordinated Global Wave Climate Projections
Summary

Surface wind waves were identified in the Intergovernmental Panel for Climate Change (IPCC) Fourth Assessment Report (AR4) as one of the key drivers in the coastal zone, but little information was available on projected changes under future climate scenarios. The main focus was on the influence of sea-level rise and inundation effects. The IPCC Working Group II recognised that risks to coastal population and ecosystems require inclusion of a broader range of coastal drivers of change. One of the key drivers, which has received insufficient attention to date, is wind-waves. The JCOMM and WCRP jointly supported Coordinated Ocean Wave Climate Projections (COWCLIP) workshop, held at WMO in Geneva, 11-13 April, 2011, provided a forum to develop a coordinated approach to wave projection studies to maximise their benefit as input into the IPCC Fifth Assessment Report. Several methods of deriving wave climate projections are being developed, including dynamical and statistical approaches. In the dynamical method, surface forcing taken from climate models is used to force a spectral wave model. Bias-adjustment (of waves or of forcing winds) may be used to improve current wave climate representation, assuming a time invariant bias adjustment to derive future projections. The statistical approach uses current climate reanalyses (atmospheric and wave) to establish a statistical relationship between the predictor (e.g., MSLP, 10-m winds) and the predictand (e.g., most commonly Hs, but other variables are being considered). The statistical relationship established is then applied to projections of the predictor taken from climate models to derive projections of the predictand. COWCLIP aims to generate wave climate projections (ultimately of global extent) and aid comprehensive assessments of their cascading uncertainty by:

  • Providing a systematic, community-based framework and infrastructure to support validation, intercomparison, documentation and data access for wave climate projections forced from CMIP5 datasets;
  • To describe best practice for regional wave climate projections, and ;
  • Engaging interests of the wave community into the wider climate community and ultimately developing coupled wind-wave Atmosphere-Ocean global climate models to support quantification of wind-wave driven feedback in the coupled climate system.
Workshop presentation and discussion sessions were focused to identify key research questions and recommendations against four themes:
  • Global wave projections
  • Regional wave projections
  • Coupling of wind-waves into coupled climate models
  • Historical wave climate variability and change
A key recommended objective of COWCLIP is coordination of global wave projections for intercomparison between international research groups, to understand uncertainty within the community ensemble of wave climate projections. Initial intercomparison experiments are being undertaken with a view to include wave parameters in greater detail in the IPCC AR5. The long-term COWCLIP goal is for waves to become a standard component of the coupled climate system, with waves coupled into climate models. Such an approach has advantages of (1) more physically representative parameterisations of key processes at the air-sea interface, and (2) removing the need for un-coupled wave model runs to generate wave information, needed by the impacts community but also simply providing additional parameters to assess the coupled climate system. The workshop was jointly sponsored by WCRP and JCOMM.

Notes

Directions to WMO, Geneva, Switzerland >>>

Website: http://www.jcomm.info/COWCLIP
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27 Participants
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Final R eport
Presentations: 20
Background Documents: 4
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[View a simple printable version of this agenda]
[View an annotated printable version of this agenda]
  • 1 - Monday 11th April, 2011
  • 1.A - Opening and Welcome

    08h30-09h00       Registration

    09h00-09h30       Welcome (General Welcome, WCRP, JCOMM)

    09h30-10h00       COWCLIP - an introduction
    by Hemer, CSIRO

    10h00-10h30       Morning Tea

  • 1.B - Regional Projections 1 : Northern Seas

    10h30-10h50       North Sea wave climate projections for anthropogenic future climate change: an ensemble study
    by Grabemann et al, HZG

    10h50-11h10       Regional wave climate simulations at the Helmholtz-Zentrum Geestacht, Institute for Coastal Research
    by Weisse et al, HZG

    11h10-11h30       Dynamical downscaling of regional wave climate in the Northern North Atlantic: results and challenges
    by Debenard and Roed, NMI

    11h30-11h50       A strategy for the regional projections of wind waves using winds from climate model simulation refined with high resolution non-hydrostatic atmospheric model
    by Gavrikov et al, IORAS

    11h50-12h20       Discussion

    12h20-13h20       Lunch

  • 1.C - Regional Projections 1 : Mediterranean

    13h20-13h40       Statistical downscaling of extreme wave climate
    by Izaguirre et al, IH Cantabria

    13h40-14h00       A hybrid system to downscale wave climate to coastal areas
    by Camus et al, IH Cantabria

    14h00-14h20       Wave climate projections in the NW Mediterranean
    by Casas-Prat and Sierra, UPC

    14h20-14h40       Regional wave climate projection studies in the Mediterranean Sea
    by Lionello, U.Salento

    14h40-15h00       Discussion

    15h00-15h30       Afternoon Tea

  • 1.D - Past Climate

    15h30-15h50       Present and future global wave data sets from ECMWF re-analyses and their relevance for climate studies
    by Bidlot, ECMWF

    15h50-16h10       Wave climate and direct computation of wave extremes estimated from 10 years of EPS prognoses
    by Breivik, NMI

    16h10-16h30       130 years of visual wind-waves using observations from VSO (1880-2009): observed climate variability in mean and extreme wave characteristics
    by Gulev and Grigorieva, IORAS

    16h30-16h50       Analysis of wave climate, observations and models
    by Ardhuin et al, IFREMER

    16h50-17h10       Discussion

    17h10-18h00       Targeted Discussion: Past Climate

  • 2 - Tuesday 12th April, 2011
  • 2.A - Global wave climate projections

    09h00-09h20      Statistical reconstruction and projection of ocean waves
    by Wang et al, Environment Canada

    09h20-09h40      Dynamic Projection of Future Wave Climate Projection Change in Global Scale
    by Mori et al, Kyoto U.

    09h40-10h00      Impact of a warmer climate on the global wave field: Preliminary results
    by Semedo et al, CINAV and Uppsala University

    10h00-10h30      Discussion

    10h30-11h00       Morning Tea

  • 2.B - Regional Projections 2 : Atlantic Coast

    11h00-11h20      Climate driven changes in waves in the North Atlantic and around the UK
    by Bocquet and Howard, UK Met Office

    11h20-11h40      The wave climate of the NW European Continental Shelf
    by Wolf and Bricheno, NOC

    11h40-12h00      Present and future wave climate analysis along the French mainland Atlantic coast, using wave dynamical downscaling
    by Charles et al, BRGM

    12h00-12h30      Discussion

    12h30-13h30       Lunch

    13h30-13h50      Respond of extreme waves to variations in regional North Atlantic climate
    by Perrie et al, Bedford IO

  • 2.C - Regional Projections 2 : Others

    13h50-14h10      Exploring uncertainty in dynamical wave projection studies
    by Hemer et al, CSIRO

    14h10-14h30      On the relevance of time and spatial variability of long term wave hindcast on energy resources evaluation and its potential implications onto wave climate projection uncertainties
    by Ocampo-Torres, CICESE

    14h30-14h50      Discussion

    14h50-15h30      Targeted Discussion: Regional Climate Projections

    15h30-16h00       Afternoon Tea

  • 2.D - Coupling

    16h00-16h20      Two-way coupling between surface gravity waves and climate
    by Fox-Kemper et al, CIRES/UC-Bulder

    16h20-16h40      The influence of atmosphere-ocean-wave coupling, wave drag and sea spray on ocean waves in mid-latitude storms
    by Pierre et al, Bedford IO

    16h40-17h00      Simulated wave climatology during the past 30 years and wave climate projection in the late 21st Century
    by Fan et al, NOAA/GFDL

    17h00-17h20      Discussion

    17h20-18h00      Targeted Discussion: coupling

  • 3 - Wednesday 13th April, 2011
  • 3.A - Summary Discussions

    09h00-09h30      Invited talk (tentative)

    09h30-10h00      Invited talk (tentative)

    10h00-10h30       Morning Tea

    10h30-11h30      Targeted Discussion: COWCLIP - does it have legs?

    11h30-13h00 Summary Discussion and Recommendation/Action


    Discussion may follow into the afternoon if required.

Report
Code Name Updated on Action
JCOMM-TR-055, WMO/TD-No. 1581, WCRP Informal Report No. 22/2011, SPA_ETWS_COWCLIP_01 Final Report: WCRP-JCOMM Workshop on Coordinated Global Wave Climate Projections (COWCLIP) 11/04/2013
Presentation
AgendaCodeNameUpdated onAction
AgendaCodeNameUpdated onAction
CMIP5: promoting a balance between prediction evaluating models using observations, and understanding 09/05/2011
Coordinated Ocean Wave Climate Projections: An Introduction 09/05/2011
Projected future wave climate along Australia’s eastern margin 09/05/2011
WMO Interactions on Ocean Matters 09/05/2011
Numerical Study of Wind Wave Climatology over the Northwestern Pacific Ocean 09/05/2011
1.B Dynamical downscaling of regional wave climate in the northern North Atlantic; results and challenges 09/05/2011
1.C Wave climate projections in the NW Mediterranean 09/05/2011
1.C Regional wave climate projection studies in the Mediterranean Sea 09/05/2011
1.C Statistical Downscaling of Extreme Wave Climate 20/06/2011
1.D Present and future global wave data sets from ECMWF re-analyses and their relevance for climate studies. 09/05/2011
1.D Analysis of wava climate: observations and models 09/05/2011
1.D Wave climate and direct computation of wave extremes estimated from 10 years of EPS prognoses 09/05/2011
2.A Impact of a Warmer Climate on the Global Wave Field (Preliminary Results) 09/05/2011
2.A Dynamic Projection of Future Global Wave Climate Change 09/05/2011
2.A Statistical Reconstruction and Projection of Ocean Waves 09/05/2011
2.B Present and Future Wave Climate along the French Mainland Atlantic Coast, using Dynamical Downscaling 20/06/2011
2.B Wave Climate of the NW European shelf 09/05/2011
2.C Air-sea interactions, Hindcasting to estimate wave energy resources 09/05/2011
2.D Two-way Coupling between Surface Gravity Waves and Climate 09/05/2011
2.D Simulated wave climatology during the past 30-years and wave climate projection in the late 21st Century 09/05/2011
Showing 1 to 20 of 20 Documents
Background Documents
AgendaCodeNameUpdated onAction
AgendaCodeNameUpdated onAction
Coordinating Global Ocean Wave Climate Projections 25/08/2010
Geneva logistical information 09/04/2011
Information on the gratuitis public transport 09/04/2011
Meeting program, abstracts and registrant list 11/04/2011
Showing 1 to 4 of 4 Documents

There are 27 participants associated with The WCRP-JCOMM Workshop on Coordinated Global Wave Climate Projections .

Other
= Person has confirmed their participation and been approved to participate.
Participant Stats:
Total Invited: 27
Confirmed: 27
Not confirmed: 0
Unapproved: 0
Not-participating: 0
Rejected: 0
Group(s): GOOS, ICR, JCOMM.
 Label(s): no labels
Created at 14:38 on 24 Aug 2010 by Boram Lee
Last Updated at 10:30 on 19 Mar 2014 by Boram Lee