DISCOVER-AQ Texas Pandora Ground Column Measurements

The DISCOVER-AQ Texas deployment in 2013 collected column measurements of NO2 and O3 from Pandora instruments at ground sites across Houston. NASA conducted this four-year campaign with multiple research centers and universities to improve satellite monitoring of air quality. Data collection is complete for this Texas deployment.

Use Cases

• Validate satellite column observations of NO2 and O3 based on ground-level measurements.
• Analyze diurnal variability of pollutants based on surface-level measurement data.
• Study horizontal scales of variability and pollution gradients across Houston ground sites.
• Diagnose ground-level conditions influencing air quality using combined aircraft and ground-based data.

Strengths

• Data collection is complete for the Texas deployment.
• Measurements from multiple ground sites including Channelview, Conroe, Deer Park, Galveston, Harris County, LaPorte Airport, Manvel Croix, Moody Tower, Seabrook Park, Smith Point, and West Houston.
• Part of a four-year NASA campaign involving multiple research centers and universities.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is limited to the Texas deployment and does not include other DISCOVER-AQ regions.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Data collected from Pandora UV/vis spectrometers at ground sites during the DISCOVER-AQ field study.

Time Range

2013 (Texas deployment)

Freshness

Last updated 2026-03-13 03:20:27.877228; freshness should be verified.

Geography

Houston, Texas, USA