The Spatial and Temporal Variability of Global Stratospheric Gravity Waves and Their Activity during Sudden Stratospheric Warming Revealed by COSMIC Measurements

被引：10

作者：

Xu, Xiaohua ^{[1
,2
]}

Yu, Daocheng ^{[1
]}

Luo, Jia ^{[1
,3
]}

机构：

[1] Wuhan Univ, Sch Geodesy & Geomat, 129 Luoyu Rd, Wuhan 430079, Hubei, Peoples R China

[2] Collaborat Innovat Ctr Geospatial Technol, 129 Luoyu Rd, Wuhan 430079, Hubei, Peoples R China

[3] Minist Educ, Key Lab Geospace Environm & Geodesy, 129 Luoyu Rd, Wuhan 430079, Hubei, Peoples R China

来源：

ADVANCES IN ATMOSPHERIC SCIENCES | 2018年 / 35卷 / 12期

基金：

中国国家自然科学基金;

关键词：

stratospheric gravity waves; GPS radio occultation; COSMIC; potential energy; sudden stratospheric warming; RADIO OCCULTATION DATA; GENERAL-CIRCULATION MODEL; MIDDLE-ATMOSPHERE; SATELLITE-OBSERVATIONS; SEASONAL-VARIATIONS; MOMENTUM FLUX; ENERGY; MORPHOLOGY; GPS/MET; HEMISPHERE;

D O I：

10.1007/s00376-018-5053-1

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

This study investigates the spatial and temporal variability of global stratospheric gravity waves (GWs) and the characteristics of GW activity during sudden stratospheric warming (SSW) using the GPS radio occultation measurements from the COSMIC mission during September 2006 to May 2013. Corresponding to the COSMIC RO observational window and analysis method, GW potential energy (Ep) with vertical scales no shorter than similar to 2 km is resolved. It is found that the distributions of GW Ep over 20-30 km and 30-38 km show similar spatial and seasonal variations. The variations of GW Ep with altitude and latitude along the westerly wind are identified in different seasons over 60 degrees-80 degrees W. In the middle and high latitudes, seasonal cycles are distinct in the time-latitude and time-altitude distributions of GW activities, which show larger Ep in winters when westerly wind dominates and smaller Ep in summers when easterly wind dominates. The influence of quasi-biennial oscillation on GW activity is recognized in the tropics. GW Ep enhances closely following the occurrence of minor SSW events; while during major events, GW Ep may not enhance, and sometimes may even weaken, in the regions where reversals of zonal wind occur, probably caused by the filtering impact of the 0 m s(-1) wind level on the GWs.

引用

页码：1533 / 1546

页数：14

共 56 条

[1] Global estimates of gravity wave momentum flux from High Resolution Dynamics Limb Sounder observations [J].

Alexander, M. J. ;

Gille, J. ;

Cavanaugh, C. ;

Coffey, M. ;

Craig, C. ;

Eden, T. ;

Francis, G. ;

Halvorson, C. ;

Hannigan, J. ;

Khosravi, R. ;

Kinnison, D. ;

Lee, H. ;

Massie, S. ;

Nardi, B. ;

Barnett, J. ;

Hepplewhite, C. ;

Lambert, A. ;

Dean, V. .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2008, 113 (D15)

[2] A Method to Infer the Three Cartesian Wavelengths of a Mountain Wave from Three Soundings [J].

Alexander, P. ;

de la Torre, A. .

JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY, 2010, 49 (09) :2069-2074

[3] COSMIC GPS Observations of Northern Hemisphere winter stratospheric gravity waves and comparisons with an atmospheric general circulation model [J].

Alexander, S. P. ;

Tsuda, T. ;

Kawatani, Y. .

GEOPHYSICAL RESEARCH LETTERS, 2008, 35 (10)

[4] Global distribution of atmospheric waves in the equatorial upper troposphere and lower stratosphere: COSMIC observations of wave mean flow interactions [J].

Alexander, S. P. ;

Tsuda, T. ;

Kawatani, Y. ;

Takahashi, M. .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2008, 113

[5] The COSMIC/FORMOSAT-3 Mission: Early Results [J].

Anthes, R. A. ;

Bernhardt, P. A. ;

Chen, Y. ;

Cucurull, L. ;

Dymond, K. F. ;

Ector, D. ;

Healy, S. B. ;

Ho, S. -P. ;

Hunt, D. C. ;

Kuo, Y. -H. ;

Liu, H. ;

Manning, K. ;

Mccormick, C. ;

Meehan, T. K. ;

Randel, W. J. ;

Rocken, C. ;

Schreiner, W. S. ;

Sokolovskiy, S. V. ;

Syndergaard, S. ;

Thompson, D. C. ;

Trenberth, K. E. ;

Wee, T. -K. ;

Yen, N. L. ;

Zeng, Z. .

BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY, 2008, 89 (03) :313-333

[6] Stratosphere-mesosphere coupling during stratospheric sudden warming events [J].

Chandran, A. ;

Collins, R. L. ;

Harvey, V. L. .

ADVANCES IN SPACE RESEARCH, 2014, 53 (09) :1265-1289

[7] A global analysis of wave potential energy in the lower stratosphere derived from 5 years of GPS radio occultation data with CHAMP [J].

de la Torre, A. ;

Schmidt, T. ;

Wickert, J. .

GEOPHYSICAL RESEARCH LETTERS, 2006, 33 (24)

[8] Lidar observations of gravity wave activity and Arctic stratospheric vortex core warming [J].

Duck, TJ ;

Whiteway, JA ;

Carswell, AI .

GEOPHYSICAL RESEARCH LETTERS, 1998, 25 (15) :2813-2816

[9]

ECKERMANN SD, 1995, Q J ROY METEOR SOC, V121, P149, DOI 10.1002/qj.49712152108

[10]

Ern M., 2013, CLIMATE WEATHER SUNE

← 1 2 3 4 5 6 →