DC3 Photolysis Rate Data from NSF/NCAR GV-HIAPER Aircraft

In-situ photolysis rate measurements were collected onboard the NSF/NCAR GV-HIAPER aircraft during the Deep Convective Clouds and Chemistry (DC3) field campaign. The campaign, conducted from May to June 2012, aimed to understand the impact of deep convective clouds on upper tropospheric chemistry. Data collection is complete and the dataset is managed by NASA's LARC ASDC.

Use Cases

• Analyzing photolysis rate variability within and around deep convective storms to model atmospheric chemistry.
• Investigating the relationship between storm dynamics, lightning activity, and subsequent changes in upper tropospheric composition over 12-48 hour periods.
• Studying the geographic variation of photochemical processes by comparing data from northeastern Colorado, west Texas to central Oklahoma, and northern Alabama.

Strengths

• Data originates from a major, coordinated field campaign (DC3) with a clear two-part scientific objective focused on convection and its chemical aftermath.
• Measurements provide a wide geographic sample across three distinct U.S. regions, capturing different storm types and boundary layer compositions.
• Cross-platform presence on NASA EarthData and Data.gov indicates recognized importance and accessibility.

Limitations

• Critical quantitative details are missing from all sources, including row count, file size, and specific column names for analysis.
• Conflicting 'last updated' dates exist between platforms (2026-03-13 vs. 2012-08-28), creating uncertainty about metadata maintenance.
• The license is ambiguously listed as 'other-license-specified' without providing the specific terms.

Provenance

Source

NASA LARC ASDC (Langley Research Center, Atmospheric Science Data Center).

Collection Method

In-situ measurements collected onboard the NSF/NCAR Gulfstream-V (GV-HIAPER) aircraft during the DC3 field campaign.

Time Range

May to June 2012.

Freshness

2026-03 13 03:18:30.563919

Geography

Northeastern Colorado, west Texas to central Oklahoma, and northern Alabama, U.S., with a base in Salina, Kansas.