Venus Cloud Top Brightness Temperature Gradients from Akatsuki LIR, 2017

Time series data of the longitudinal gradient of Venusian cloud top brightness temperature measured by the LIR instrument onboard JAXA's Akatsuki orbiter. The data were used in the paper 'Planetary-Scale Waves Seen in Thermal Infrared Images of Venusian Cloud Top' by Kajiwara et al. The first column in each file gives the elapsed time in days from 18 May 2017, with exact dates provided in the associated paper.

Use Cases

• Analyzing planetary-scale wave patterns based on longitudinal brightness temperature gradients.
• Studying atmospheric dynamics on Venus based on time-series data from the Akatsuki LIR instrument.
• Validating climate models for Venus based on thermal infrared observations of cloud tops.

Strengths

• Data is directly linked to a peer-reviewed scientific publication, providing context and validation.
• Includes data in multiple formats (Excel, CSV, NetCDF) for different analysis needs.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

JAXA's Venus orbiter Akatsuki LIR instrument.

Collection Method

Derived and analyzed in the associated research paper.

Time Range

Observations begin from 18 May 2017; exact dates are in the paper's Supporting Information.

Geography

Venus, with data files representing specific latitudes (e.g., 10N, EQ).