Fabry-Perot Doppler Imager Observations at Syowa Station

2001 observations from an instrument measuring two-dimensional wind speed and temperature distributions at auroral emission heights. The Fabry-Perot Doppler Imager was installed by the Japanese Antarctic Research Expedition (JARE-42) at Syowa Station. Data includes Doppler shift and width measurements of the oxygen emission line, recorded via a CCD camera and stored on hard drives and DVD-RAM.

Use Cases

• Analyze temporal variations in wind_speed derived from Doppler shift measurements of the oxygen emission line.
• Map two-dimensional temperature distributions from Doppler width data across the observed field of view.
• Correlate observed auroral emission intensity with concurrent geomagnetic activity indices.
• Validate numerical models of thermospheric dynamics using the spatially resolved wind and temperature data.

Strengths

• Provides two-dimensional spatial distribution data for wind and temperature, not just single-point measurements.
• Instrument includes detailed control and monitoring of operational status, including temperature sensors.

Limitations

• Specific temporal coverage, sample size, and data resolution are unknown from the description.
• Data is from a single geographic location (Syowa Station), limiting global representativeness.

Provenance

Source

SCIOPS via NASA Earthdata.

Collection Method

Ground-based optical observation using a Fabry-Perot interferometer and CCD camera system.

Time Range

Observations began in 2001.

Geography

Syowa Station, Antarctica.