TRMM Precipitation Radar Data for IPHEx Field Campaign

TRMM 2A25 NRT Precipitation Radar IPHEx data provide estimates of instantaneous three-dimensional rain distribution from the Tropical Rainfall Measuring Mission satellite. The dataset covers the southeast US region for a specific field campaign period from May 1 to June 16, 2014. NASA produced this data for the GPM Ground Validation Integrated Precipitation and Hydrology Experiment.

Use Cases

• Validating satellite-based precipitation estimates against ground observations using parameters like average rainfall rate and integrated rain rate per beam.
• Analyzing three-dimensional storm structure and rain layer boundaries using radar reflectivity and range bin data.
• Calibrating Z-R relationships (R=aZb) for quantitative precipitation estimation in the southeast US region.
• Studying the spatial and temporal distribution of rainfall during the 2014 IPHEx field campaign.

Strengths

• Data originates from the NASA Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar, a well-calibrated satellite instrument.
• Provides three-dimensional distribution of rain, including parameters like rain layer boundaries and Z-R relationship coefficients.
• Covers a focused 47-day period during a major ground validation field campaign (IPHEx).

Limitations

• Sources conflict on the last updated date: one platform lists 2026-03-13, while another lists 2014-06 16.
• Specific row count, file size, and detailed column names are not provided by any source.
• Data is restricted to a specific historical time window and geographic region (southeast US).

Provenance

Source

National Aeronautics and Space Administration (NASA) / GES DISC

Collection Method

Orbital precipitation radar data from the TRMM satellite, extracted for a specific region and time period during the IPHEx field campaign.

Time Range

May 1 to June 16, 2014

Freshness

2026-03-13 01:59:39.420054

Geography

Southeast United States region