Representation of solar tides in the stratosphere and lower mesosphere in state-of-the-art reanalyses and in satellite observations

Sakazaki, Takatoshi; Fujiwara, Masatomo; Shiotani, Masato

doi:https://doi.org/10.5194/acp-18-1437-2018

Articles | Volume 18, issue 2

https://doi.org/10.5194/acp-18-1437-2018

© Author(s) 2018. 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-18-1437-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 2

Research article

|

01 Feb 2018

Research article |

| 01 Feb 2018

Representation of solar tides in the stratosphere and lower mesosphere in state-of-the-art reanalyses and in satellite observations

Takatoshi Sakazaki, Masatomo Fujiwara, and Masato Shiotani

Data sets

MERRA-2 instU_3d_asm_Np: 3d, diurnal, Instantaneous, Pressure-Level, Assimilation, Assimilated Meteorological Fields V5.12.4 Global Modeling and Assimilation Office (GMAO) https://doi.org/10.5067/6EGRBNEBMIYS

instU_3d_asm_Cp: MERRA 3D IAU State, Meteorology Diurnal V5.2.0 Global Modeling and Assimilation Office (GMAO) https://doi.org/10.5067/BUFAR1DPYIR9

The Japanese 55-year Reanalysis (JRA-55) DIAS http://search.diasjp.net/en/dataset/JRA55

JRA-55AMIP: Monthly Means and Variances Including Diurnal Statistics NCAR RDA https://doi.org/10.5065/D6T72FHN

ERA-I ECMWF http://apps.ecmwf.int/datasets/

NCEP Climate Forecast System Reanalysis (CFSR) Monthly Products, January 1979 to December 2010 NCAR RDA https://doi.org/10.5065/D6DN438J

Short summary

Atmospheric solar tides in the stratosphere and lower mesosphere are examined using temperature data from five reanalyses and satellite measurements. The reanalyses agree reasonably well with each other and with the satellite observations, but the agreement among the reanalyses is weaker in the mesosphere. The assimilation of satellite data improves the representation of tides in the reanalyses, while long-term changes are mostly artificial and driven by changes in the input data employed.