Comparison of equatorial wave activity in the tropical tropopause layer and stratosphere represented in reanalyses

Kim, Young-Ha; Kiladis, George N.; Albers, John R.; Dias, Juliana; Fujiwara, Masatomo; Anstey, James A.; Song, In-Sun; Wright, Corwin J.; Kawatani, Yoshio; Lott, François; Yoo, Changhyun

doi:10.5194/acp-19-10027-2019

Articles | Volume 19, issue 15

https://doi.org/10.5194/acp-19-10027-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

The SPARC Reanalysis Intercomparison Project (S-RIP) (ACP/ESSD...

https://doi.org/10.5194/acp-19-10027-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 15

Research article

|

09 Aug 2019

Research article |

| 09 Aug 2019

Comparison of equatorial wave activity in the tropical tropopause layer and stratosphere represented in reanalyses

Young-Ha Kim, George N. Kiladis, John R. Albers, Juliana Dias, Masatomo Fujiwara, James A. Anstey, In-Sun Song, Corwin J. Wright, Yoshio Kawatani, François Lott, and Changhyun Yoo

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Dec 2019	16	18	1	35
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Jun 2020	20	11	0	31
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Feb 2021	24	12	0	36
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Mar 2019	64	14	2	80
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Jun 2019	21	5	0	26
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Aug 2019	228	63	4	295
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Mar 2022	5	5	0	10
Apr 2022	16	9	1	26
May 2022	10	4	0	14
Jun 2022	11	2	0	13
Jul 2022	25	3	0	28
Aug 2022	114	4	3	121
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Nov 2024	9	4	1	14
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Feb 2025	41	14	0	55
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Jul 2025	62	16	1	79
Aug 2025	37	15	3	55
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Oct 2025	33	26	0	59
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Short summary

Reanalyses are widely used products of meteorological variables, generated using observational data and assimilation systems. We compare six modern reanalyses, with focus on their representation of equatorial waves which are important in stratospheric variability and stratosphere–troposphere exchange. Agreement/spreads among the reanalyses in the spectral properties and spatial distributions of the waves are examined, and satellite impacts on the wave representation in reanalyses are discussed.


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