Overview

The Venus atmosphere objective analysis dataset ALERA-V was generated using horizontal wind speeds obtained from the Ultraviolet Imager (UVI) on the Venus Climate Orbiter 'AKATSUKI' of the Japan Aerospace Exploration Agency (JAXA), the Venus atmospheric general circulation model 'AFES-Venus', and the Venus atmospheric data assimilation system 'ALEDAS-V'.

Data Download

ALERA-V v1.0 dataset

Identification Information (Dataset)

(Note) Due to capacity limitations of the data repository (Zenodo), DOI is only assigned to the ensemble mean data. All data used to genelate the ensemble mean data can be downloaded from this site.

Title: ALERA-V version 1.0: an experimental objective analysis dataset of Venus atmosphere
DOI: 10.5281/zenodo.14799183
Data Citation: Fujisawa, Y., Murakami, S., Sugimoto, N., Komori, N., Takagi, M., Imamura, T., Horinouchi, T., Hashimoto, G. L., Ishiwatari, M., Enomoto, T., Miyoshi, T., Kashimura, H., Matsushima, T., & Hayashi, Y.-Y. (2025). ALERA-V version 1.0: an experimental objective analysis dataset of Venus atmosphere (1.0) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.14799183

Identification Information (Source Code and Configuration Files for Generating Dataset)

Title: ALEDAS-V source code and configuration files for generating ALERA-V version 1.0
DOI: 10.5281/zenodo.14808285
Data Citation: Fujisawa, Y., Murakami, S., Sugimoto, N., Komori, N., Takagi, M., Imamura, T., Horinouchi, T., Ando, H., Kouyama, T., Kashimura, H., Matsushima, T., Liang, J., Yamazaki, A., Enomoto, T., Miyoshi, T., Hashimoto, G. L., Ishiwatari, M., Ohfuchi, W., Matsuda, Y., & Hayashi, Y.-Y. (2025). ALEDAS-V source code and configuration files for generating ALERA-V version 1.0 (1.0). Zenodo. https://doi.org/10.5281/zenodo.14808285

Related Papers

Fujisawa, Y., Murakami, Sy., Sugimoto, N, Takagi, M., Imamura, T., Horinouchi, T., Hashimoto, G. L., Ishiwatari, M., Enomoto, T., Miyoshi, T., Kashimura, H., Hayashi, Y.-Y. 2022: The first assimilation of Akatsuki single-layer winds and its validation with Venusian atmospheric waves excited by solar heating. Sci Rep 12, 14577. https://doi.org/10.1038/s41598-022-18634-6
(now under construction) Fujisawa, Y., Murakami, Sy., Sugimoto, N, Takagi, M., Imamura, T., Horinouchi, T., Hashimoto, G. L., Ishiwatari, M., Enomoto, T., Miyoshi, T., Kashimura, H., Hayashi, Y.-Y.: ALERA-V version 1.0: an experimental objective analysis dataset of Venus atmosphere generated by Akatsuki UVI cloud tracking data and LETKF data assimilation system (ALEDAS-V)

Release History

Issued v1.0: 2024-12-18

Acknowledgements

The authors thank all the members of the Akatsuki project team for their remarkable support in developing and operating the spacecraft and processing data on the ground. This study was conducted under the joint research project of the Earth Simulator Center titled ‘High resolution general circulation simulation of Venus and Mars atmosphere using AFES’. The work is partly supported by MEXT | Japan Society for the Promotion of Science grants JP19H05605, JP24H00021.

Contacts

For questions concerning this archive:
ALEDAS-V Management Group, akatsuki-aledasv@cps-jp.org

For questions concerning CPS websites:
Center for Planetary Science (CPS)

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