IMERG CPEX Satellite Precipitation Estimates for Convective Storm Study

IMERG CPEX V1 contains satellite-derived precipitation measurements from the Convective Processes Experiment field campaign. NASA's dataset combines estimates from multiple passive microwave sensors using the GPROF algorithm, providing half-hourly analysis over the majority of the Earth's surface. The data covers a specific campaign period in the North Atlantic region during early summer 2017.

Use Cases

• Analyzing convective storm life cycles using half-hourly precipitation time-series data.
• Validating and calibrating satellite precipitation retrieval algorithms like GPROF.
• Studying regional precipitation patterns in the North Atlantic-Gulf of America-Caribbean Sea region.
• Researching the relationship between passive microwave brightness temperatures and precipitation estimates.

Strengths

• Data is derived from the multi-satellite GPM constellation, providing broad spatial coverage.
• Precipitation estimates are generated at a high temporal resolution of 30-minute analysis times.
• Focuses on a dedicated field campaign (CPEX) with sixteen coordinated DC-8 aircraft missions.

Limitations

• Exact row count, file size, and specific column names are not provided by any source.
• Sources conflict on the last updated date, reporting either 2017-07-16 or 2026-03-13.
• Temporal coverage is limited to a specific 54-day campaign from May 24 to July 16, 2017.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Estimates retrieved using the Goddard Profiling (GPROF) algorithm converting passive microwave brightness temperatures to precipitation, combined from multiple satellites in the GPM constellation.

Time Range

May 24,我们发现2017 through July 16, 2017

Freshness

2026-03-13 01:26:17.713170

Geography

North Atlantic-Gulf of America-Caribbean Sea region, with coverage over the majority of the Earth's surface.