HyMeX Campaign Raindrop Size and Velocity Measurements

Raindrop size distribution data was collected using a Two-Dimensional Video Disdrometer during the HyMeX field campaign. The dataset provides in-situ measurements of individual raindrop size, shape, and velocity from sites in France and Italy. It was produced by the GHRC DAAC for validating satellite precipitation estimates from the Global Precipitation Measurement mission.

Use Cases

• Analyzing raindrop size distribution (DSD) parameters for precipitation physics research.
• Validating satellite-based precipitation retrievals from the GPM mission using ground truth data.
• Studying the relationship between raindrop shape and fall velocity.
• Calibrating and improving radar rainfall algorithms.
• Investigating Mediterranean precipitation characteristics during the HyMeX field experiment.

Strengths

• Provides detailed individual raindrop measurements including size, shape, and velocity.
• Data collected during a major international field campaign (HyMeX) focused on the hydrological cycle.
• Covers a two-month time range from September 12 to November 12, 2012.

Limitations

• Specific column names and the total row count are not provided by any source.
• Data format is ASCII, which may require parsing for analysis.
• Sources disagree on the last update date (2012-11-13 vs. 2026-03-13).

Provenance

Source

GHRC_DAAC

Collection Method

In-situ measurements from a Two-Dimensional Video Disdrometer (2DVD) recording orthogonal image projections of raindrops.

Time Range

September 12, 2012 to November 12, 2012

Freshness

2026-03-13 01:59:34.665702

Geography

France and Italy