xyuan

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Xiaojun Yuan

Lamont Research Professor

Lamont-Doherty Earth Observatory

Ocean and Climate Physics

204D Oceangraphy

61 Route 9W - PO Box 1000

Palisades

10964-8000

Phone:

(845) 365-8820

Fax:

(845) 365-8157

xyuan@ldeo.columbia.edu

View Website

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Fields of interest:

My primary research interest is in the Antarcitc atmosphere, ocean and sea ice/glacial ice fields.

I have engaged in studies of variability of the Antarctic atmosphere-ocean-sea ice system and its role in global climate since 1995. My research has progressed from the identification of polar-global linkages, expanded to an ENSO-Antarctic Dipole teleconnection mechanism study, and finally resulted in an Antarctic sea ice forecast. At the same time, I have utilized space-born scatterometer observations and developed a series of studies focused on air-sea interactions on synoptic time scales, ranging from cyclone-sea ice interaction, high wind evaluations to satellite enhanced cyclone statistics in the Southern Ocean. With the accumulation of knowledge regarding climate variability in the atmosphere, sea ice and at the air-sea interface, an understanding of the ocean’s role in the mid-high latitudes climate system becomes increasingly important. However, this task is much more challenging because of sparse observations in the Southern Ocean. In recent years, I have developed a few oceanic field programs to advance our knowledge of how the polar ocean plays out in the climate system.

Education

List of degrees from highest to lowest:

Ph.D..

Scripps Institution of Oceanography, University of California, San Diego

12/1994

B.S. in Physical Onceanigraphy

Shandong College of Oceanography, Qingdao, China

6/1982

Lamont Projects:

Antarctic Sea Ice Forecast

Selected Publications:

Inflow of Warm Circumpolar Deep Water in the Central Amundsen Shelf Wahlin, A K; Yuan, X; Bjork, G; Nohr, C Journal of Physical Oceanography (2010)

Satellite-based midlatitude cyclone statistics over the Southern Ocean: 2. Tracks and surface fluxes Yuan, X., J. Patoux and C. Li, J. Geophys. Res., Volume: 114 (2009)

Trends in Antarctic annual sea ice retreat and advance and their relation to El Nino-Southern Oscillation and Southern Annular Mode variability Stammerjohn, S. E.; Martinson, D. G.; Smith, R. C.; Yuan, X.; Rind, D. Journal of Geophysical Research-Oceans Mar 14 Volume: 113 Issue: C3 p.: - (2008) Doi 10.1029/2007jc004269

Climate modes in southern high latitudes and their impacts on Antarctic sea ice Yuan, X., and C. Li J. Geophys. Res., (2008)

Fronts and strong currents of the upper southeast Indian Ocean He, Z. G.; Dong, Z. Q.; Yuan, X. J. Acta Oceanologica Sinica Volume: 25 Issue: 2 p.: 1-24 (2006)

ENSO-related impacts on Antarctic sea ice: a synthesis of phenomenon and mechanisms Yuan, X. J. Antarctic Science Dec Volume: 16 Issue: 4 p.: 415-425 (2004) Doi 10.1017/S0954102004002238

High-wind-speed evaluation in the Southern Ocean Yuan, X. J. Journal of Geophysical Research-Atmospheres Jul 1 Volume: 109 Issue: D13 p.: - (2004) Doi 10.1029/2003jd004179

A Markov model for seasonal forecast of Antarctic sea ice Chen, D. K.; Yuan, X. J. Journal of Climate Aug Volume: 17 Issue: 16 p.: 3156-3168 (2004)

Re-evaluating Antarctic sea-ice variability and its teleconnections in a GISS global climate model with improved sea ice and ocean processes Liu, J. P.; Yuan, X. J.; Martinson, D. G.; Rind, D. International Journal of Climatology Jun 15 Volume: 24 Issue: 7 p.: 841-852 (2004) Doi 10.1002/Joc.1040

Upper ocean thermohaline structure and its temporal variability in the southeast Indian Ocean Yuan, X. J.; Martinson, D. G.; Dong, Z. Q. Deep-Sea Research Part I-Oceanographic Research Papers Feb Volume: 51 Issue: 2 p.: 333-347 (2004) DOI 10.1016/j.dsr.2003.10.005

Sensitivity of sea ice to physical parameterizations in the GISS global climate model Liu, J. P.; Schmidt, G. A.; Martinson, D. G.; Rind, D.; Russell, G.; Yuan, X. J. Journal of Geophysical Research-Oceans Feb 27 Volume: 108 Issue: C2 p.: - (2003) Doi 10.1029/2001jc001167

Evaluating Antarctic sea ice variability and its teleconnections in global climate models Liu, J. P.; Martinson, D. G.; Yuan, X. J.; Rind, D. International Journal of Climatology Jun 30 Volume: 22 Issue: 8 p.: 885-900 (2002) Doi 10.1002/Joc.770

Mechanism study of the ENSO and southern high latitude climate teleconnections Liu, J. P.; Yuan, X. J.; Rind, D.; Martinson, D. G. Geophysical Research Letters Jul 15 Volume: 29 Issue: 14 p.: - (2002) Doi 10.1029/2002gl015143

The Antarctic Dipole and its predictability Yuan, X. J.; Martinson, D. G. Geophysical Research Letters Sep 15 Volume: 28 Issue: 18 p.: 3609-3612 (2001)

Climate response to basin-specific changes in latitudinal temperature gradients and implications for sea ice variability Rind, D.; Chandler, M.; Lerner, J.; Martinson, D. G.; Yuan, X. Journal of Geophysical Research-Atmospheres Sep 16 Volume: 106 Issue: D17 p.: 20161-20173 (2001)

Antarctic sea ice extent variability and its global connectivity Yuan, X. J.; Martinson, D. G. Journal of Climate May 15 Volume: 13 Issue: 10 p.: 1697-1717 (2000)

Effect of air-sea-ice interaction on winter 1996 Southern Ocean subpolar storm distribution Yuan, X. J.; Martinson, D. G.; Liu, W. T. Journal of Geophysical Research-Atmospheres Jan 27 Volume: 104 Issue: D2 p.: 1991-2007 (1999)

Climate variation - Cycling around the South Pole Yuan, X. J.; Cane, M. A.; Martinson, D. G. Nature Apr 25 Volume: 380 Issue: 6576 p.: 673-674 (1996)

The subarctic frontal zone in the North Pacific: Characteristics of frontal structure from climatological data and synoptic surveys Yuan, X. J.; Talley, L. D. Journal of Geophysical Research-Oceans Jul 15 Volume: 101 Issue: C7 p.: 16491-16508 (1996)