African Rainfall Statistics from TRMM Satellite (1998-2012)

Rainfall distribution statistics provide gridded estimates for the African continent and Madagascar based on NASA's Tropical Rainfall Measuring Mission (TRMM) data. The dataset contains 14-year mean monthly values for total amount, frequency, intensity, and duration, plus Markov chain and gamma-distribution parameters for temporal downscaling. Data is presented in 12 netCDF files with a 0.25-degree spatial resolution.

Use Cases

• Modeling long-term monthly rainfall patterns across Africa using gridded estimates of total amount, frequency, intensity, and duration.
• Temporal downscaling of precipitation data using the provided Markov chain and gamma-distribution parameters.
• Analyzing spatial variability of rainfall characteristics at a 0.25-degree resolution for climate impact studies.
• Validating regional climate models against satellite-derived rainfall statistics from 1998 to 2012.

Strengths

• Derived from 14 years of continuous satellite measurements from NASA's TRMM mission (1998-2012).
• Provides multiple statistical parameters (Markov chain, gamma distribution) enabling advanced temporal downscaling applications.
• Offers continent-wide coverage at a consistent 0.25-degree spatial resolution.

Limitations

• Conflicting metadata: one platform lists a last updated date of 2026-03-12, while another indicates 2012-12-31, suggesting potential data staleness or platform error.
• Specific row counts, file sizes, and detailed column names are not provided across any source.
• License is specified as 'other-license-specified' without clear terms for reuse.

Provenance

Source

National Aeronautics and Space Administration (NASA), Tropical Rainfall Measuring Mission (TRMM)

Collection Method

Rainfall estimates quantified using a gamma-based function and two Markov chain parameters from TRMM satellite data.

Time Range

1998 to 2012

Freshness

2026-03-12 21:22:41.470362

Geography

African continent, including Madagascar