SEAC4RS: DC-8 Aircraft In-Situ Photolysis Rate Measurements

SEAC4RS j-value data captures photolysis rates from the NASA DC-8 aircraft during a 2013 field study investigating pollution, clouds, and climate coupling. The dataset supports research on how deep convection redistributes emissions and the evolution of gases and aerosols in the upper troposphere. It also serves as a calibration and validation resource for future satellite atmospheric chemistry missions.

Use Cases

• Modeling atmospheric photochemistry based on in-situ photolysis rate (j-value) measurements.
• Studying the redistribution of pollutant emissions via deep convection, as referenced in the science objectives.
• Analyzing the evolution of gases and aerosols in convective outflow for UT/LS chemistry studies.
• Calibrating and validating satellite instrument data for atmospheric composition, as stated in the mission objectives.

Strengths

• Data originates from a major NASA airborne field study (SEAC4RS) with defined science objectives.
• Measurements are from a dedicated platform (DC-8) instrumented for comprehensive in-situ and remote sensing.
• Temporal coverage is explicitly defined as August and September 2013.

Limitations

• Column names and data structure are unknown, hindering detailed assessment of variables.
• Row counts and dataset size are not provided on any platform.
• License information is inconsistent ('other-license-specified' vs. 'None').

Provenance

Source

NASA/LARC_ASDC

Collection Method

In-situ measurements collected onboard the NASA DC-8 aircraft.

Time Range

August-September 2013

Freshness

2026-04-09 22:27:34.201133

Geography

Field operation based in Houston, Texas; specific flight paths not detailed.