CAMEX-4 Airborne Ozone Photometer Measurements

NASA's CAMEX-4 Dual-Beam UV-Absorption Ozone Photometer dataset contains ozone number density measurements derived from 254-nm radiation absorption using the Beer-Lambert law. Data was collected during the fourth Convection and Moisture Experiment campaign with a one-second sampling rate and a minimum detectable concentration of 1.5 x 10^10 molecules/cm³. The dataset is hosted by the National Aeronautics and Space Administration.

Use Cases

• Analyzing high-frequency ozone concentration time series from airborne platforms.
• Studying ozone photochemistry and distribution within convective systems targeted by CAMEX-4.
• Validating atmospheric chemistry models with in-situ ozone measurements.
• Investigating relationships between ozone and other atmospheric parameters measured during the campaign.

Strengths

• Provides high temporal resolution measurements with a one-second data collection rate.
• Specifies a precise minimum detectable ozone concentration of 1.5 x 10^10 molecules/cm³.
• Dataset is hosted by NASA, indicating institutional provenance and curation.

Limitations

• No column names or row counts are provided, limiting understanding of data structure.
• Conflicting last update dates exist between platforms (2001-09-26 vs. 2026-03 13).
• Specific file formats (BIN, ISO, HTML, PDF) suggest raw and documentation files, which may require specialized handling.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Measured using a dual-beam UV-absorption photometer with a mercury lamp and sample chambers periodically scrubbed of ozone.

Time Range

During the CAMEX-4 field campaign (exact dates not specified in provided metadata).

Freshness

2026-03-13 04:59:58.512396

Geography

Airborne measurements during CAMEX-4 (specific flight regions not detailed).