OWLETS-2: Ozone and Wind Lidar Data for Coastal Air Quality

OWLETS-2_SurfaceLidar_Data contains NASA TROPOZ and LMOL lidar measurements from the Ozone Water-Land Environmental Transition Study's second campaign. The dataset captures vertical profiles of ozone and wind over the Chesapeake Bay to study pollutant gradients across the land-water interface. Data were collected from June 6 to July 6, 2018, at sites including Hart Miller Island and the University of Maryland, Baltimore County.

Use Cases

• Analyzing vertical ozone concentration gradients over water versus land.
• Studying coastal wind profiles and their role in pollutant transport.
• Validating regional air quality models with synchronous lidar observations.
• Investigating fundamental processes at the land-water interface using multi-instrument campaign data.

Strengths

• Data originates from a coordinated NASA field campaign (OWLETS-2) supported by the Science Innovation Fund.
• Provides synchronous vertical measurements from multiple sites (UMBC, HMI, HUBV) for direct land-water comparison.
• Integrates data from specialized TOLNet ozone lidars (NASA GSFC TROPOZ and NASA LaRC LMOL) and wind lidar.

Limitations

• Column names and specific data structure are not provided in the available metadata.
• Exact row counts and file sizes are unknown across all platform entries.
• One source lists a last update date of 2026-04-09, which is a future date and suggests a metadata error.

Provenance

Source

NASA Langley Research Center Atmospheric Science Data Center (LARC_ASDC).

Collection Method

Field campaign measurements using ground-based TROPOZ and Mobile Ozone (LMOL) lidars, part of the TOLNet network.

Time Range

June 6, — July 6, 2018 (OWLETS-2). Descriptions also reference the first OWLETS campaign from July 5 — August 3, 2017.

Freshness

2026-04-09 23:36:01.024688 (Note: This is a future date and may be incorrect)

Geography

Upper Chesapeake Bay region, specifically Hart Miller Island (over-water) and UMBC (over-land) sites.