= Data used in the Science Report by Horinouchi et al (2020)

Horinouchi, T., Y.-Y. Hayashi, S. Watanabe, M. Yamada, A. Yamazaki,
T. Kouyama, M. Taguchi, T. Fukuhara, M. Takagi, K. Ogohara,
S. Murakami, J. Peralta, S. S. Limaye, T. Imamura, M. Nakamura,
T. M. Sato, T. Satoh. (2020):
How waves and turbulence maintain the super-rotation of Venus' atmosphere.
Science, Vol. 368, Issue 6489, pp. 405-409.
DOI: 10.1126/science.aaz4439
(https://www.science.org/doi/10.1126/science.aaz4439)

Contact: email to Takeshi Horinouchi,
horinout (_at_) ees.hokudai.ac.jp.

The files in this directory contain data used to create the above
mentioned paper. These data are freely available to check the paper.
If you further want to use them for your research, we request you to
follow the following guideline:

* If you want to publish or present your results obtained by using any
  of the data, please refer this and the other papers listed
  below (see REFERENCES).
* We would appreciate it if you could report your activity using the data.
  Please be cooperative; a variety of researches with the data are still
  ongoing. We would welcome collaborative studies.
* Be cautious about the limitations of the data, which you can learn
  from the references. Avoid quick-and-dirty works.

== REFERENCES

Cloud tracking and its validation methods:

* Ikegawa, S., and T. Horinouchi (2016), Improved automatic estimation
  of winds at the cloud top of Venus using superposition of
  cross-correlation surfaces. Icarus, 271, 98-119.
  https://doi.org/10.1016/j.icarus.2016.01.018

* Horinouchi, T., S. Murakami T. Kouyama, K. Ogohara, A. Yamazaki,
  M. Yamada, and S. Watanabe (2017), Image velocimetry for clouds with
  relaxation labeling based on deformation consistency. Measurement
  Science and Technology, 28(8), 085301 (10pp), 2017.
  https://doi.org/10.1088/1361-6501/aa695c

Parameter setting particular to the present data
* Horinouchi, T., T. Kouyama, Y. J. Lee, S. Murakami, K. Ogohara,
  M. Takagi, T. Imamura,K. Nakajima, J. Peralta, A. Yamazaki, M. Yamada,
  and S. Watanabe (2018), Mean winds at the cloud top of Venus obtained
  from two-wavelength UV imaging by Akatsuki.  Earth, Planets, Space,
  70:10.  https://doi.org/10.1186/s40623-017-0775-3

Error evaluation, actual usage of data, etc
* Horinouchi et al. (2020): cited above.
  (https://science.sciencemag.org/content/368/6489/405/)
  Please read its Supplementary Materials file (e.g., Fig. S3A)
  (https://science.sciencemag.org/highwire/filestream/743672/field_highwire_adjunct_files/0/aaz4439_Horinouchi_SM.pdf)
  available online on the Science web site.

== FILES

Format: 
* NetCDF: files with the suffix .nc
* ASCII text: files with the suffix .txt

The raw data of cloud tracking results (before applying the smoothing
in time or space to derive (u#, v#) or (u', v') in the paper):
* concat_283_eps20_pphvlen2_LT.nc     (from the 283-nm images)
* concat_365_eps20_pphvlen2_LT.nc     (from the 365-nm images)

The daily mean winds used to derive (u#, v#):
* daily_uvi_283_eps20_pp0hvlen2.0_LT.nc     (from the 283-nm images)
* daily_uvi_365_eps20_pp0hvlen2.0_LT.nc     (from the 365-nm images)

Numerical data shown in the figures
* Fig2A.txt - Fig2E.txt : data visualized in Figure 2
* Fig3B.txt -- Fig3C.txt : data visualized in Figure 3

== REMARKS

The data used to draw Figure 1 are available in the 
Supplementary Materials file of the paper.

Figure 3A is a simple visualization from the daily mean wind data.