Tropical Upper-Level Wind Analyses for Two Summer Seasons

T. N. Krishnamurti of Florida State University produced these analyses of 200 mb wind fields over the tropics. The data comprises two summer periods: June-August 1967 and June-August 1972. Measurements are provided on a 2.5-degree latitude/longitude grid at 12Z daily.

Use Cases

• Analyze the spatial structure of 200 mb wind vectors across the tropics during the specified summers.
• Compare interannual variability in upper-level tropical winds between the 1967 and 1972 summer seasons.
• Validate or bias-correct reanalysis products using the gridded wind speed and direction data at 12Z.
• Study specific atmospheric phenomena present during these periods using the consistent 2.5-degree grid.

Strengths

• Data covers two complete summer seasons (June-August) for interannual comparison.
• Spatial resolution is specified as a consistent 2.5-degree latitude/longitude grid.
• Temporal resolution is consistent with daily 12Z observations.

Limitations

• Dataset is temporally limited to two specific summer periods, not a continuous long-term record.
• Spatial coverage is restricted to tropical regions, excluding extratropical data.
• Unknown sample size (row count) and file format details.

Provenance

Source

T. N. Krishnamurti, Florida State University, via NASA Earthdata.

Collection Method

null

Time Range

1 June 1967 - 31 August 1967 and 1 June 1972 - 31 August 1972.

Freshness

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Geography

Tropical regions on a 2.5-degree latitude/longitude grid.