Global Daily Precipitation Estimates from Satellite and Gauge Data

October 1998 to present daily precipitation data on a global 1-degree grid. The dataset is produced by NOAA/NCEI, merging estimates from microwave, infrared, sounder satellite data, and precipitation gauge analyses. Files are updated monthly with a two to three month processing delay.

Use Cases

• Model global precipitation anomalies using the 1-degree gridded daily time-series data.
• Validate regional climate model outputs against the merged satellite and gauge analysis estimates.
• Analyze long-term trends in the daily precipitation record spanning over two decades.
• Study extreme weather events using the high-temporal-resolution daily data layer.

Strengths

• Global spatial coverage on a consistent 1-degree latitude-longitude grid.
• Long temporal coverage from October 1998 to near-present, updated monthly.
• Data combines multiple sources (microwave, infrared, sounder, gauges) to leverage strengths of each.

Limitations

• This Version 1.2 is superseded; use is only recommended for reproducing prior studies.
• Data has a two to three month latency, limiting use for real-time analysis.
• Specific row counts, file sizes, and data volume metrics are not provided.

Provenance

Source

NOAA/NCEI (National Oceanic and Atmospheric Administration, National Centers for Environmental Information).

Collection Method

Optimal merging of precipitation estimates from international satellite constellations and gauge analyses.

Time Range

October 1998 to present (with latency).

Freshness

Updated monthly with a two to three month delay.

Geography

Global.