CAMEX-4 Airborne Laser Hygrometer Water Vapor Measurements

Water vapor volume and mixing ratio data were collected by a JPL Laser Hygrometer during the CAMEX-4 field campaign focused on tropical cyclones. The instrument uses a 1.37-micron tunable laser to measure in-situ absorption, providing water vapor pressure values. Data is managed by the GHRC DAAC and is available in multiple file formats.

Use Cases

• Analyzing water vapor mixing ratios in the boundary layer of tropical cyclones.
• Studying the relationship between in-situ water vapor concentration and storm intensity.
• Validating satellite-derived atmospheric humidity profiles with high-frequency airborne measurements.
• Investigating temporal variations of water vapor at a configurable sampling rate up to 8 Hz.

Strengths

• Data originates from a targeted NASA field campaign (CAMEX-4) with a specific scientific objective.
• Instrument provides high-frequency in-situ measurements, configurable up to 8 Hz sampling.

Limitations

• Column names and the exact row/record count are not specified in any source.
• Sources conflict on the last updated date (2001-09-25 vs 2026-03 13).

Provenance

Source

GHRC DAAC / NASA JPL

Collection Method

In-situ measurement using a tunable laser hygrometer aboard an aircraft during the CAMEX-4 campaign.

Time Range

During the CAMEX-4 campaign (specific dates not provided).

Freshness

2026-03-13 07:05:29.999459

Geography

Tropical cyclone regions studied during the CAMEX-4 campaign.