Evidence for tropospheric wind shear excitation of high-phase-speed gravity waves reaching the mesosphere using the ray-tracing technique

Pramitha, M.; Venkat Ratnam, M.; Taori, A.; Krishna Murthy, B. V.; Pallamraju, D.; Vijaya Bhaskar Rao, S.

doi:10.5194/acp-15-2709-2015

Articles | Volume 15, issue 5

https://doi.org/10.5194/acp-15-2709-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-15-2709-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 15, issue 5

Research article

|

10 Mar 2015

Research article |

| 10 Mar 2015

Evidence for tropospheric wind shear excitation of high-phase-speed gravity waves reaching the mesosphere using the ray-tracing technique

M. Pramitha, M. Venkat Ratnam, A. Taori, B. V. Krishna Murthy, D. Pallamraju, and S. Vijaya Bhaskar Rao

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Month	HTML	PDF	XML	Total
Jul 2014	32	39	1	72
Aug 2014	51	75	4	130
Sep 2014	25	267	4	296
Oct 2014	22	1,194	7	1,223
Nov 2014	12	641	1	654
Dec 2014	23	663	2	688
Jan 2015	29	525	1	555
Feb 2015	27	41	0	68
Mar 2015	58	65	3	126
Apr 2015	27	25	6	58
May 2015	14	22	9	45
Jun 2015	40	32	6	78
Jul 2015	41	65	5	111
Aug 2015	12	64	1	77
Sep 2015	4	50	1	55
Oct 2015	30	48	3	81
Nov 2015	34	61	9	104
Dec 2015	8	58	2	68
Jan 2016	33	64	4	101
Feb 2016	32	53	3	88
Mar 2016	23	56	0	79
Apr 2016	10	34	1	45
May 2016	9	31	0	40
Jun 2016	10	12	0	22
Jul 2016	19	6	2	27
Aug 2016	8	18	1	27
Sep 2016	15	11	0	26
Oct 2016	17	6	0	23
Nov 2016	6	2	0	8
Dec 2016	7	3	2	12
Jan 2017	15	4	19
Feb 2017	14	3	1	18
Mar 2017	24	6	4	34
Apr 2017	26	16	3	45
May 2017	22	9	4	35
Jun 2017	23	4	5	32
Jul 2017	20	5	1	26
Aug 2017	7	18	2	27
Sep 2017	8	13	1	22
Oct 2017	7	21	4	32
Nov 2017	16	25	1	42
Dec 2017	17	18	4	39
Jan 2018	13	14	1	28
Feb 2018	9	12	2	23
Mar 2018	18	20	6	44
Apr 2018	19	21	3	43
May 2018	15	20	4	39
Jun 2018	9	28	5	42
Jul 2018	23	25	3	51
Aug 2018	9	15	2	26
Sep 2018	14	15	3	32
Oct 2018	28	13	2	43
Nov 2018	17	22	2	41
Dec 2018	5	17	2	24
Jan 2019	10	11	0	21
Feb 2019	17	5	3	25
Mar 2019	9	7	3	19
Apr 2019	8	14	0	22
May 2019	15	15	1	31
Jun 2019	17	16	1	34
Jul 2019	11	20	1	32
Aug 2019	21	10	0	31
Sep 2019	10	7	2	19
Oct 2019	11	9	1	21
Nov 2019	16	15	1	32
Dec 2019	20	19	2	41
Jan 2020	12	7	0	19
Feb 2020	16	4	0	20
Mar 2020	11	3	1	15
Apr 2020	13	4	3	20
May 2020	11	0	11
Jun 2020	18	4	1	23
Jul 2020	24	9	6	39
Aug 2020	13	8	4	25
Sep 2020	9	1	3	13
Oct 2020	12	2	2	16
Nov 2020	8	9	1	18
Dec 2020	17	9	4	30
Jan 2021	22	6	0	28
Feb 2021	20	5	0	25
Mar 2021	7	11	5	23
Apr 2021	16	4	0	20
May 2021	22	8	1	31
Jun 2021	7	8	0	15
Jul 2021	6	4	0	10
Aug 2021	14	24	1	39
Sep 2021	6	9	0	15
Oct 2021	5	42	0	47
Nov 2021	16	26	1	43
Dec 2021	16	10	0	26
Jan 2022	15	11	0	26
Feb 2022	12	10	5	27
Mar 2022	15	14	1	30
Apr 2022	19	6	1	26
May 2022	18	10	0	28
Jun 2022	33	8	1	42
Jul 2022	45	7	2	54
Aug 2022	27	12	1	40
Sep 2022	26	13	1	40
Oct 2022	20	2	1	23
Nov 2022	15	3	0	18
Dec 2022	6	4	0	10
Jan 2023	4	7	0	11
Feb 2023	7	6	1	14
Mar 2023	14	8	0	22
Apr 2023	6	8	0	14
May 2023	27	12	1	40
Jun 2023	32	6	1	39
Jul 2023	40	7	1	48
Aug 2023	33	11	2	46
Sep 2023	37	11	0	48
Oct 2023	39	16	3	58
Nov 2023	24	3	0	27
Dec 2023	50	5	2	57
Jan 2024	41	5	0	46
Feb 2024	33	9	0	42
Mar 2024	32	14	2	48
Apr 2024	38	11	5	54
May 2024	14	15	1	30
Jun 2024	9	6	1	16
Jul 2024	10	11	4	25
Aug 2024	16	8	1	25
Sep 2024	9	8	0	17
Oct 2024	13	6	0	19
Nov 2024	12	6	2	20
Dec 2024	16	8	3	27
Jan 2025	11	16	0	27
Feb 2025	33	9	3	45
Mar 2025	11	14	0	25
Apr 2025	12	13	0	25
May 2025	37	13	7	57
Jun 2025	48	10	1	59
Jul 2025	33	19	1	53
Aug 2025	31	45	2	78
Sep 2025	57	15	2	74
Oct 2025	26	30	0	56
Nov 2025	28	23	6	57
Dec 2025	1	3	0	4

Cumulative views and downloads (calculated since 29 Jul 2014)

Month	HTML	PDF	XML	Total
Jul 2014	32	39	1	72
Aug 2014	51	75	4	130
Sep 2014	25	267	4	296
Oct 2014	22	1,194	7	1,223
Nov 2014	12	641	1	654
Dec 2014	23	663	2	688
Jan 2015	29	525	1	555
Feb 2015	27	41	0	68
Mar 2015	58	65	3	126
Apr 2015	27	25	6	58
May 2015	14	22	9	45
Jun 2015	40	32	6	78
Jul 2015	41	65	5	111
Aug 2015	12	64	1	77
Sep 2015	4	50	1	55
Oct 2015	30	48	3	81
Nov 2015	34	61	9	104
Dec 2015	8	58	2	68
Jan 2016	33	64	4	101
Feb 2016	32	53	3	88
Mar 2016	23	56	0	79
Apr 2016	10	34	1	45
May 2016	9	31	0	40
Jun 2016	10	12	0	22
Jul 2016	19	6	2	27
Aug 2016	8	18	1	27
Sep 2016	15	11	0	26
Oct 2016	17	6	0	23
Nov 2016	6	2	0	8
Dec 2016	7	3	2	12
Jan 2017	15	4	19
Feb 2017	14	3	1	18
Mar 2017	24	6	4	34
Apr 2017	26	16	3	45
May 2017	22	9	4	35
Jun 2017	23	4	5	32
Jul 2017	20	5	1	26
Aug 2017	7	18	2	27
Sep 2017	8	13	1	22
Oct 2017	7	21	4	32
Nov 2017	16	25	1	42
Dec 2017	17	18	4	39
Jan 2018	13	14	1	28
Feb 2018	9	12	2	23
Mar 2018	18	20	6	44
Apr 2018	19	21	3	43
May 2018	15	20	4	39
Jun 2018	9	28	5	42
Jul 2018	23	25	3	51
Aug 2018	9	15	2	26
Sep 2018	14	15	3	32
Oct 2018	28	13	2	43
Nov 2018	17	22	2	41
Dec 2018	5	17	2	24
Jan 2019	10	11	0	21
Feb 2019	17	5	3	25
Mar 2019	9	7	3	19
Apr 2019	8	14	0	22
May 2019	15	15	1	31
Jun 2019	17	16	1	34
Jul 2019	11	20	1	32
Aug 2019	21	10	0	31
Sep 2019	10	7	2	19
Oct 2019	11	9	1	21
Nov 2019	16	15	1	32
Dec 2019	20	19	2	41
Jan 2020	12	7	0	19
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Apr 2020	13	4	3	20
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Jun 2020	18	4	1	23
Jul 2020	24	9	6	39
Aug 2020	13	8	4	25
Sep 2020	9	1	3	13
Oct 2020	12	2	2	16
Nov 2020	8	9	1	18
Dec 2020	17	9	4	30
Jan 2021	22	6	0	28
Feb 2021	20	5	0	25
Mar 2021	7	11	5	23
Apr 2021	16	4	0	20
May 2021	22	8	1	31
Jun 2021	7	8	0	15
Jul 2021	6	4	0	10
Aug 2021	14	24	1	39
Sep 2021	6	9	0	15
Oct 2021	5	42	0	47
Nov 2021	16	26	1	43
Dec 2021	16	10	0	26
Jan 2022	15	11	0	26
Feb 2022	12	10	5	27
Mar 2022	15	14	1	30
Apr 2022	19	6	1	26
May 2022	18	10	0	28
Jun 2022	33	8	1	42
Jul 2022	45	7	2	54
Aug 2022	27	12	1	40
Sep 2022	26	13	1	40
Oct 2022	20	2	1	23
Nov 2022	15	3	0	18
Dec 2022	6	4	0	10
Jan 2023	4	7	0	11
Feb 2023	7	6	1	14
Mar 2023	14	8	0	22
Apr 2023	6	8	0	14
May 2023	27	12	1	40
Jun 2023	32	6	1	39
Jul 2023	40	7	1	48
Aug 2023	33	11	2	46
Sep 2023	37	11	0	48
Oct 2023	39	16	3	58
Nov 2023	24	3	0	27
Dec 2023	50	5	2	57
Jan 2024	41	5	0	46
Feb 2024	33	9	0	42
Mar 2024	32	14	2	48
Apr 2024	38	11	5	54
May 2024	14	15	1	30
Jun 2024	9	6	1	16
Jul 2024	10	11	4	25
Aug 2024	16	8	1	25
Sep 2024	9	8	0	17
Oct 2024	13	6	0	19
Nov 2024	12	6	2	20
Dec 2024	16	8	3	27
Jan 2025	11	16	0	27
Feb 2025	33	9	3	45
Mar 2025	11	14	0	25
Apr 2025	12	13	0	25
May 2025	37	13	7	57
Jun 2025	48	10	1	59
Jul 2025	33	19	1	53
Aug 2025	31	45	2	78
Sep 2025	57	15	2	74
Oct 2025	26	30	0	56
Nov 2025	28	23	6	57
Dec 2025	1	3	0	4

Latest update: 04 Dec 2025

Short summary

Sources and propagation characteristics of high-frequency gravity waves observed in the mesosphere using airglow emissions from Gadanki and Hyderabad, India, are investigated using reverse ray tracing. Wave amplitudes are also traced back, including both radiative and diffusive damping. Interestingly, large vertical shears in the horizontal wind are noticed near the ray terminal points (at 10-12km altitude) and are thus identified to be the source for generating the observed gravity waves.