PCMDI

CAPT

Cloud Feedbacks

CMIP5

CMIP3

Other MIPs

Software

Publications

Google Calendar

Lab Calendar


Site Map

UCRL-WEB-152471

Privacy & Legal Notice

Thanks to Our Sponsors:

PCMDI > WCRP CMIP3 Model Output > Diagnostic Subprojects Printer Friendly Version
 
<< Back to WCRP CMIP3 Subprojects

High magnitude wind events over the circumpolar coastal zones

PI: David E. Atkinson
Institution: University of Alaska Fairbanks
Additional Investigators: Steven M. Solomon, Donald Forbes
Abstract:
Our proposal in general concerns wind-field climatology in the coastal margins of the Arctic polar regions. We specifically propose to extract from CMIP model runs a) individual high-magnitude wind events and b) indicators of background windfield strength and direction. These regions are sensitive to erosive activity in part due to wind-driven wave activity. Coastal erosion places infrastructure and habitat at risk. Recent trends suggest that increasing wind fetch due to sea-ice margin retreat, as well as lengthening ice-free seasons, act to increase the erosive power of wave activity and the length of time for wave attack to occur. High-magnitude wind events are the most effective agent of coastal change. It is important to determine if these occurrences are likely to change in frequency or intensity into the future. Atkinson, Solomon and Forbes propose to use daily u and v fields to identify trends in average windfield vectors. As well, high-magnitude wind events will be identified using a demonstrated algorithm from wind fields derived from high temporal resolution pressure grids (3-hourly data).

The objective of this work is to obtain information about future trends in wind forcing, background and extreme, and to then place these results into an erosion context using existing knowledge about coastal response to wind forcing.

This work will require the following data fields:

Daily-mean 3-d atmosphere data:
eastward_wind (ua)
northward_wind (va)

3-hourly 2-d atmosphere data:
air_pressure_at_sea_level (psl)
Publications:

    Add Publication


    << Back to WCRP CMIP3 Subprojects
     
    For questions or comments regarding this website, please contact the Webmaster.
     
    Lawrence Livermore National Laboratory  |  Physical & Life Sciences Directorate