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| 題名: | Occurrence of elves and lightning during El Ni�o and la Ni�a |
| 作者: | 郭政靈;Wu, Y. J.;Chen, A. B.;Hsu, H. H.;Chou, J. K.;Chang, S. C.;Lee, L. J.;Lee, Y. J.;Su, H. T.;Kuo, C. L.;Hsu, R. R.;Frey, H. U.;Mende, S. B.;Takahashi, Y.;Lee, L. C. |
| 貢獻者: | 地球科學學院太空科學與工程學系 |
| 關鍵詞: | Earth sciences;Earth, ocean, space;Exact sciences and technology;Lightning;LIS;TLEs |
| 日期: | 2012-02-01 |
| 上傳時間: | 2026-04-23 11:05:28 (UTC+8) |
| 出版者: | Wiley-Blackwell;Washington, DC: Blackwell Publishing Ltd |
| 摘要: | 摘要： We analyzed the ISUAL‐FORMOSAT2 elves, the LIS‐TRMM lightning, the sea surface temperature (SST), and the El Niño southern oscillation (ENSO) indices (the Niño 3.4 Index and the Southern Oscillation Index ‐ SOI) in the period between June 2005 and May 2010 to explore the impacts of ENSO on the occurrences of the mesospheric elves and the troposphere lightning. The standardized anomalies of the elve and the lightning occurrence densities are used to quantify the deviation of the elve and lightning occurrences during an ENSO event. The areas in the ENSO‐sensitive western Pacific, central Pacific and Tahiti regions with a significant event anomaly are taken to be the impact indicators of ENSO. Also the SOI is used to examine the correlation of the temporal intensity variation between ENSO, elve and lightning. The results indicate that elve shows clear responses to ENSO with a correlation over 0.6 in the coastal and the oceanic regions. The lightning occurrence is responsive to ENSO in the oceanic regions, but shows a low correlation in the coastal regions, due the overwhelming influence of the landmass. Therefore, between elve and lightning as proximity indices of ENSO, elve has a broader applicable geographic range. However, elve is known to be the mesospheric luminous manifestations of the high‐peak‐current lightning, and the response of the intense lightning to ENSO would be similar to that of the elve. Hence, alternatively, the intense lightning can also be used as an indicator of ENSO.
其他題名： Geophys. Res. Lett
出版者： Washington, DC: Blackwell Publishing Ltd
出版日期： 2012-02
出處： Geophysical Research Letters, 2012-02, Vol.39 (3), p.n/a
資源來源： Wiley Online Library
版權： Copyright 2012 by the American Geophysical Union
版權： 2015 INIST-CNRS
識別號： ISSN: 0094-8276
識別號： ISSN: 1944-8007
識別號： EISSN: 1944-8007
識別號： DOI: 10.1029/2011GL049831
識別號： CODEN: GPRLAJ |
| 顯示於類別: | [太空科學與工程學系] 期刊論文
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