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Multiyear (2002-2011) wind observations from TIMED Doppler Interferometer (TIDI) onboard the thermosphere ionosphere mesosphere energetics and dynamics (TIMED) satellite are used for studying the typical structures and variations of mesospheric and lower thermospheric (MLT) mean zonal wind from 80 to 105 km in 120 °E meridian. Comparisons between TIDI measurements and empirical models indicate that TIDI is in good agreement with models in the extratropic regions especially in the middle and high latitudes, but significant differences occur mainly in the tropic regions. In the altitudes of TIDI's coverage from 80 to 105 km, monthly zonal winds are always westward over the tropical regions, forming an easterly band centered at the equator. Results from multiyear observations show complicated variations in the MLT tropical easterlies. The averaged width of easterlies is 37.5 degrees and corresponding variation is about 14 degrees.
[1] Hays P B, Abreu V J, Dobbs M E, Gell D A, Grassl H J, Skinner W R 1993 J. Geophys. Res. 98 10713
[2] Shepherd G G, Thuillier G, Gault W A, Solheim B H, Hersom C, Alunni J M, Brun J F, Brune, S, Charlot P, Cogger L L, Desaulniers D L, Evans W F J, Gattinger R L, Girod F, Harvie D, Hum R H, Kendall D J W, Llewellyn E J, Lowe R P, Ohrt J, Pasternak F, Peillet O, Powell I, Rochon Y, Ward W E, Wiens R H, Wimperis J 1993 J. Geophys. Res. 98 10725
[3] Fleming E L, Chandra S, Burrage M D, Skinner W R, Hays P B, Solheim B H, Shepherd G G 1996 J. Geophys. Res. 101 10455
[4] McLandress C, Shepherd G G, Solheim B H, Hays P B, Skinner W R 1996 J. Geophys. Res. 101 10441
[5] Wang D Y, McLandress C, Fleming E L, Ward W E, Solheim B, Shepherd G G 1997 J. Geophys. Res. 102 6729
[6] Swinbank R, Ortland D A 2003 J. Geophys. Res. 108 4615
[7] Killeen T L, Skinner W R, Johnson R M, Edmonson C J, Wu Q, Niciejewski R J, Grassl H J, Gell D A, Hansen P E, Harvey J D, Kafkalidis J F 1999 Proc. SPIE 3756 289
[8] Fleming E L, Chandra S, Barnett J J, Corney M 1990 Adv. Space Res. 10(12) 11
[9] Hedin A E, Fleming E L, Manson A H, Schmidlin F J, Avery S K, Clark R R, Franke S J, Fraser G J, Tsuda T, Vial F, Vincent R A 1996 J. Atmos. Terr. Phys. 58 1421
[10] Drob D P, Emmert J T, Crowley G, Picone J M, Shepherd G G, Skinner W, Hays P, Niciejewski R J, Larsen M, She C Y, Meriwether J W, Hernandez G, Jarvis M J, Sipler D P, Tepley C A, O'Brien M S, Bowman J R, Wu Q, Murayama Y, Kawamura S, Reid I M, Vincent R A 2008 J. Geophys. Res. 113 A12304
[11] Li F Q, Hu X, Zhang D Y, Zhang X J, Huang Z R, Xiong J G, Zeng Z 2002 Chin. J. Space Sci. 22 65 (in Chinese) [李凤琴, 胡雄, 张冬娅, 张训械, 黄泽荣, 熊建刚, 曾桢 2002 空间科学学报 22 65]
[12] Xiong J G, Wan W X, Ning B Q, Liu L B 2003 Chin. Sci. Bull. 48 1102 (in Chinese) [熊建刚, 万卫星, 宁百齐, 刘立波 2003 科学通报 48 1102]
[13] Zhang S D, Yi F, Hu X 2004 J. Atmos. Sol.-Terr. Phys. 66 15
[14] Zhao G X, Liu L B, Wan W X, Ning B Q, Xiong J G 2005 Earth Planets Space 57 61
[15] Zhang D Y, Hu X, Zhang X X, Wu X C, Igarashi K 2005 Chin. J. Space Sci. 25 267 (in Chinese) [张冬娅, 胡雄, 张训械, 吴小成, Igarashi K 2005 空间科学学报 25 267]
[16] Jiang G Y, Xu J Y, Shi J K, Yang G T, Wang X, Yan C X 2010 Chin. Sci. Bull. 55 923 (in Chinese) [姜国英, 徐寄遥, 史建魁, 杨国韬, 王霄, 燕春晓 2010 科学通报 55 923]
[17] Peng Y G, Chen Z Y, Chen H B, Wang Z H 2006 Chin. J. Space Sci. 26 124 (in Chinese) [彭勇刚, 陈泽宇, 陈洪滨, 王振会 2006 空间科学学报 26 124]
[18] Wu Z, Chen Z Y, Peng Y G, Chen H B, Wang Z H, L D R 2008 Chin. J. Geophys. 51 44 (in Chinese) [吴振, 陈泽宇, 彭勇刚, 陈洪滨, 王振会, 吕达仁 2008 地球 51 44]
[19] Yee J H, Cameron G E, Kusnierkiewicz D Y 1999 Proc. SPIE 3756 244
[20] Skinner W R, Niciejewski R J, Killeen T L, Solomon S C, Gablehouse D, Wu Q, Ortland D, Gell D A, Marshall A R, Wolfe E, Cooper M, Kafkalidis J F 2003 Proc. SPIE 5157 47
[21] Killeen T L, Wu Q, Solomon S C, Ortland D A, Skinner W R, Niciejewski R J, Gell D A 2006 J. Geophys. Res. 111 A10S01
[22] Wu Q, Killeen T L, Ortland D A, Solomon S C, Gablehouse R D, Johnson R M, Skinner W R, Niciejewski R J, Franke S J 2006 J. Atmos. Sol.-Terr. Phys. 68 408
[23] Chen Z Y, L D R 2007 Chin. J. Geophys. 50 691 (in Chinese) [陈泽宇, 吕达仁 2007 地球 50 691]
[24] Chen Z Y, L D R 2008 Chin. J. Geophys. 51 982 (in Chinese) [陈泽宇, 吕达仁 2008 地球 51 982]
[25] Hedin A E, Spencer N W, Killeen T L 1988 J. Geophys. Res. 93 9959
[26] Kishore P, Namboothiri S P, Igarashi K 2000 J. Geophys. Res. 105 24863
[27] Lieberman R S, Burrage M D, Gell D A, Hays P B, Marshall A R, Ortland D A, Skinner W R, Wu D L, Vincent R A, Franke S J 1993 Geophys. Res. Lett. 20 2849
[28] Zhang S P, McLandress C, Shepherd G G 2007 J. Geophys. Res. 112 D21105
[29] Wu Q, Ortland D A, Killeen T L, Roble R G, Hagan M E, Liu H L, Solomon S C, Xu J Y, Skinner W R, Niciejewski R J 2008 J. Geophys. Res. 113 A05308
[30] John S R, Kumar K K, Subrahmanyam K V, Manju G, Wu Q 2011 Ann. Geophys. 29 1209
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[1] Hays P B, Abreu V J, Dobbs M E, Gell D A, Grassl H J, Skinner W R 1993 J. Geophys. Res. 98 10713
[2] Shepherd G G, Thuillier G, Gault W A, Solheim B H, Hersom C, Alunni J M, Brun J F, Brune, S, Charlot P, Cogger L L, Desaulniers D L, Evans W F J, Gattinger R L, Girod F, Harvie D, Hum R H, Kendall D J W, Llewellyn E J, Lowe R P, Ohrt J, Pasternak F, Peillet O, Powell I, Rochon Y, Ward W E, Wiens R H, Wimperis J 1993 J. Geophys. Res. 98 10725
[3] Fleming E L, Chandra S, Burrage M D, Skinner W R, Hays P B, Solheim B H, Shepherd G G 1996 J. Geophys. Res. 101 10455
[4] McLandress C, Shepherd G G, Solheim B H, Hays P B, Skinner W R 1996 J. Geophys. Res. 101 10441
[5] Wang D Y, McLandress C, Fleming E L, Ward W E, Solheim B, Shepherd G G 1997 J. Geophys. Res. 102 6729
[6] Swinbank R, Ortland D A 2003 J. Geophys. Res. 108 4615
[7] Killeen T L, Skinner W R, Johnson R M, Edmonson C J, Wu Q, Niciejewski R J, Grassl H J, Gell D A, Hansen P E, Harvey J D, Kafkalidis J F 1999 Proc. SPIE 3756 289
[8] Fleming E L, Chandra S, Barnett J J, Corney M 1990 Adv. Space Res. 10(12) 11
[9] Hedin A E, Fleming E L, Manson A H, Schmidlin F J, Avery S K, Clark R R, Franke S J, Fraser G J, Tsuda T, Vial F, Vincent R A 1996 J. Atmos. Terr. Phys. 58 1421
[10] Drob D P, Emmert J T, Crowley G, Picone J M, Shepherd G G, Skinner W, Hays P, Niciejewski R J, Larsen M, She C Y, Meriwether J W, Hernandez G, Jarvis M J, Sipler D P, Tepley C A, O'Brien M S, Bowman J R, Wu Q, Murayama Y, Kawamura S, Reid I M, Vincent R A 2008 J. Geophys. Res. 113 A12304
[11] Li F Q, Hu X, Zhang D Y, Zhang X J, Huang Z R, Xiong J G, Zeng Z 2002 Chin. J. Space Sci. 22 65 (in Chinese) [李凤琴, 胡雄, 张冬娅, 张训械, 黄泽荣, 熊建刚, 曾桢 2002 空间科学学报 22 65]
[12] Xiong J G, Wan W X, Ning B Q, Liu L B 2003 Chin. Sci. Bull. 48 1102 (in Chinese) [熊建刚, 万卫星, 宁百齐, 刘立波 2003 科学通报 48 1102]
[13] Zhang S D, Yi F, Hu X 2004 J. Atmos. Sol.-Terr. Phys. 66 15
[14] Zhao G X, Liu L B, Wan W X, Ning B Q, Xiong J G 2005 Earth Planets Space 57 61
[15] Zhang D Y, Hu X, Zhang X X, Wu X C, Igarashi K 2005 Chin. J. Space Sci. 25 267 (in Chinese) [张冬娅, 胡雄, 张训械, 吴小成, Igarashi K 2005 空间科学学报 25 267]
[16] Jiang G Y, Xu J Y, Shi J K, Yang G T, Wang X, Yan C X 2010 Chin. Sci. Bull. 55 923 (in Chinese) [姜国英, 徐寄遥, 史建魁, 杨国韬, 王霄, 燕春晓 2010 科学通报 55 923]
[17] Peng Y G, Chen Z Y, Chen H B, Wang Z H 2006 Chin. J. Space Sci. 26 124 (in Chinese) [彭勇刚, 陈泽宇, 陈洪滨, 王振会 2006 空间科学学报 26 124]
[18] Wu Z, Chen Z Y, Peng Y G, Chen H B, Wang Z H, L D R 2008 Chin. J. Geophys. 51 44 (in Chinese) [吴振, 陈泽宇, 彭勇刚, 陈洪滨, 王振会, 吕达仁 2008 地球 51 44]
[19] Yee J H, Cameron G E, Kusnierkiewicz D Y 1999 Proc. SPIE 3756 244
[20] Skinner W R, Niciejewski R J, Killeen T L, Solomon S C, Gablehouse D, Wu Q, Ortland D, Gell D A, Marshall A R, Wolfe E, Cooper M, Kafkalidis J F 2003 Proc. SPIE 5157 47
[21] Killeen T L, Wu Q, Solomon S C, Ortland D A, Skinner W R, Niciejewski R J, Gell D A 2006 J. Geophys. Res. 111 A10S01
[22] Wu Q, Killeen T L, Ortland D A, Solomon S C, Gablehouse R D, Johnson R M, Skinner W R, Niciejewski R J, Franke S J 2006 J. Atmos. Sol.-Terr. Phys. 68 408
[23] Chen Z Y, L D R 2007 Chin. J. Geophys. 50 691 (in Chinese) [陈泽宇, 吕达仁 2007 地球 50 691]
[24] Chen Z Y, L D R 2008 Chin. J. Geophys. 51 982 (in Chinese) [陈泽宇, 吕达仁 2008 地球 51 982]
[25] Hedin A E, Spencer N W, Killeen T L 1988 J. Geophys. Res. 93 9959
[26] Kishore P, Namboothiri S P, Igarashi K 2000 J. Geophys. Res. 105 24863
[27] Lieberman R S, Burrage M D, Gell D A, Hays P B, Marshall A R, Ortland D A, Skinner W R, Wu D L, Vincent R A, Franke S J 1993 Geophys. Res. Lett. 20 2849
[28] Zhang S P, McLandress C, Shepherd G G 2007 J. Geophys. Res. 112 D21105
[29] Wu Q, Ortland D A, Killeen T L, Roble R G, Hagan M E, Liu H L, Solomon S C, Xu J Y, Skinner W R, Niciejewski R J 2008 J. Geophys. Res. 113 A05308
[30] John S R, Kumar K K, Subrahmanyam K V, Manju G, Wu Q 2011 Ann. Geophys. 29 1209
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