Surface Pressure Responses to Solar Sector Boundary Crossings

Surface pressure residuals and solar activity indices from 1995 to 2017. Data includes 1-day, 3-day, and 5-day averaged NCEP/NCAR reanalysis pressure residuals and selected solar wind indices. The dataset was compiled by the AU_AADC organization using NOAA and NASA OMNIWeb sources.

Use Cases

• Perform superposed epoch analysis using solar sector boundary crossing key-dates to analyze surface pressure response lags.
• Correlate daily-averaged solar wind and auroral activity indices with surface pressure residuals across different averaging periods.
• Compare regional surface pressure responses in the Northern Hemisphere, Southern Hemisphere, and Equatorial regions using the provided video designations.
• Analyze the impact of IMF By phase consistency duration on atmospheric pressure by using the designated 'dpc' (days of phase consistency) categories.

Strengths

• 23-year temporal coverage from 1995 to 2017.
• Data includes multiple averaging periods (1-day, 3-day, 5-day) and long-term variation removal via 27-day centered averages.
• Integrates surface pressure reanalysis with independent solar wind and auroral activity indices from NASA OMNIWeb.

Limitations

• Excludes data at the temporal endpoints due to the averaging method.
• Spatial resolution is limited to the NCEP grid format of 2.5° latitude by 2.5° longitude.
• The last update was in 2017, making the data temporally stale for studying recent events.

Provenance

Source

NCEP/NCAR reanalysis from NOAA ESRL and solar activity data from NASA OMNIWeb.

Collection Method

Derived by calculating surface pressure residuals from reanalysis and compiling solar indices and key-dates.

Time Range

1995 to 2017.

Freshness

Static dataset last updated in 2017.

Geography

Global, based on the NCEP 2.5° x 2.5° grid.