| Title | The oscillation of the perturbation potential energy between the extratropics and tropics in boreal winter |
| Authors | Wang, Lei Li, Jianping Wang, Zhanggui Li, Yanjie Zheng, Fei |
| Affiliation | Peking Univ, Sch Phys, Beijing 100871, Peoples R China. Natl Marine Environm Forecasting Ctr, Key Lab Res Marine Hazards Forecasting, Beijing 100081, Peoples R China. Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing 100875, Peoples R China. Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China. |
| Keywords | perturbation potential energy kinetic energy oscillation ElNino-Southern Oscillation Hadley circulation precipitation SOUTHERN-OSCILLATION GLOBAL PRECIPITATION LIMITED REGION EL-NINO ENERGETICS ATMOSPHERE BUDGET |
| Issue Date | 2015 |
| Publisher | ATMOSPHERIC SCIENCE LETTERS |
| Citation | ATMOSPHERIC SCIENCE LETTERS.2015,16,(2),119-126. |
| Abstract | Correlation analyses reveal that the perturbation potential energy (PPE) in the extratropics and tropics in boreal winters undergoes out-of-phase oscillations (PPE1 extratropics-tropics oscillation, PETO). PETO is closely related to both ElNino-Southern Oscillation (ENSO) and kinetic energy, furthermore, PETO tends to dominate over the extratropics while ENSO is more important over the tropics. In the Northern (Southern) Hemisphere, positive PETO phases tend to strengthen (weaken) Hadley circulation and to weaken (strengthen) an expanded Ferrel circulation, resulting in equatorward shift of the subtropical jet streams. In addition, precipitation is enhanced in regions of ascending vertical motion, and warmer temperatures are observed in the tropics except over the western Pacific. |
| URI | http://hdl.handle.net/20.500.11897/420604 |
| ISSN | 1530-261X |
| DOI | 10.1002/asl2.532 |
| Indexed | SCI(E) |
| Appears in Collections: | 物理学院 |
