TRACER-AQ Pandora Column Observations: Houston Air Quality Study

NASA and TCEQ co-sponsored the TRACER-AQ campaign to study ozone formation in Houston during peak season. Pandora spectrometer data from ground sites provides column measurements of nitrogen dioxide and formaldehyde. This dataset supports evaluation of air quality models and satellite observations.

Use Cases

• Evaluating satellite observations of NO2 and HCHO using ground-based column measurements.
• Analyzing spatial and temporal distribution of key photochemical species during peak ozone season.
• Assessing meteorological impacts on ozone formation around the Houston Ship Channel.
• Providing observational constraints for regional air quality model simulations.

Strengths

• Data collection is complete for the primary field campaign period.
• Part of a coordinated observing system including airborne remote sensing, mobile labs, and multiple ground-based assets.
• Campaign involved 12 flight days of airborne measurements with specialized instruments.

Limitations

• Column names and exact data structure are unknown from the provided metadata.
• Dataset size and row count are unspecified across all platforms.
• License is listed as 'other-license-specified' but details are not provided.

Provenance

Source

NASA LARC_ASDC, with partners including TCEQ, DOE TRACER, and academic institutions.

Collection Method

Collected by Pandora spectrometers at various ground sites during the TRACER-AQ field study.

Time Range

Primary observations from mid-August to late September 2021, with a subset deployment in summer 2022.

Freshness

2026-04-09 21:29:01.151578

Geography

Houston region, particularly around the Houston Ship Channel, Galveston Bay, and the Gulf of America.