Chen Ru

No Thumbnail Available
Last Name
Chen
First Name
Ru
ORCID

Filters

2009 - 2009 1 2010 - 2013 1
1 1
2
Reset filters

Settings

Search Results

Now showing 1 - 2 of 2
  • Article
    Zonal surface wind jets across the Red Sea due to mountain gap forcing along both sides of the Red Sea
    (American Geophysical Union, 2009-10-10) Jiang, Houshuo ; Farrar, J. Thomas ; Beardsley, Robert C. ; Chen, Ru ; Chen, Changsheng
    Mesoscale atmospheric modeling over the Red Sea, validated by in-situ meteorological buoy data, identifies two types of coastal mountain gap wind jets that frequently blow across the longitudinal axis of the Red Sea: (1) an eastward-blowing summer daily wind jet originating from the Tokar Gap on the Sudanese Red Sea coast, and (2) wintertime westward-blowing wind-jet bands along the northwestern Saudi Arabian coast, which occur every 10–20 days and can last for several days when occurring. Both wind jets can attain wind speeds over 15 m s−1 and contribute significantly to monthly mean surface wind stress, especially in the cross-axis components, which could be of importance to ocean eddy formation in the Red Sea. The wintertime wind jets can cause significant evaporation and ocean heat loss along the northeastern Red Sea coast and may potentially drive deep convection in that region. An initial characterization of these wind jets is presented.
  • Thesis
    Energy pathways and structures of oceanic eddies from the ECCO2 state estimate and simplified models
    (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2013-02) Chen, Ru
    Studying oceanic eddies is important for understanding and predicting ocean circulation and climate variability. The central focus of this dissertation is the energy exchange between eddies and mean flow and banded structures in the low-frequency component of the eddy field. A combination of a realistic eddy-permitting ocean state estimate and simplified theoretical models is used to address the following specific questions. (1) What are the major spatial characteristics of eddy-mean flow interaction from an energy perspective? Is eddy-mean flow interaction a local process in most ocean regions? (2) The banded structures in the low-frequency eddy field are termed striations. How much oceanic variability is associated with striations? How does the time-mean circulation, for example a subtropical gyre or constant mean flow, influence the origin and characteristics of striations? How much do striations contribute to the energy budget and tracer mixing?