Physics
Scientific paper
Jul 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3414710g&link_type=abstract
Geophysical Research Letters, Volume 34, Issue 14, CiteID L14710
Physics
1
Global Change: Impacts Of Global Change (1225), Global Change: Regional Climate Change, Global Change: Climate Variability (1635, 3305, 3309, 4215, 4513), Global Change: Climate Dynamics (0429, 3309)
Scientific paper
Large-scale climate teleconnections play evident roles in spring dust storm variability over east Asia through influencing regional weather and climates. In the present study authors found that dust storm frequency in northern China is significantly correlated to the Pacific/North American (PNA) pattern with a Pearson's correlation coefficient of +0.60 on interannual time scale during the period 1962-2002. The atmospheric circulation changes (including weather disturbances at 850hPa, monthly mean wind and height at 500 hPa and 200 hPa levels) in association with dust storm and PNA bear remarkable similarity, confirming the robustness of their connections. East Asian jet stream is, at least partly, responsible for generating the evident co-variations between dust storm frequency and PNA. This teleconnection and the corresponding circulation changes exist in non-El Niño/Southern Oscillation (ENSO), likely independent of ENSO phases. The results are helpful for better understanding how East Asian dust storm responds to the global change.
Fan Yi-Da
Gong Dao-Yi
Mao Rui
Shi Pei-Jun
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