CESM 1.2.2: Extreme Daily Precipitation Anomalies 1501 BCE–2008 CE

Two Community Earth System Model (CESM 1.2.2) simulations covering 1501 BCE to 2008 CE provide data on extreme daily precipitation and related climate variables. The full-forcing simulation includes volcanic eruptions, while the orbital-only simulation isolates orbital influences. Output includes daily precipitation anomalies above the 99th percentile for 1501 BCE–1849 CE and monthly variables like temperature and geopotential height for 1979–2008 CE.

Use Cases

• Analyzing long-term trends in extreme daily precipitation anomalies based on model year and simulation type.
• Comparing the influence of volcanic forcing versus orbital forcing on precipitation extremes using the full-forcing and orbital-only simulations.
• Investigating correlations between extreme precipitation and monthly climate variables like surface temperature (TS) and geopotential height (Z500).
• Validating climate model performance for extreme events against paleoclimate proxy records for the period 1501 BCE–1849 CE.

Strengths

• Covers an exceptionally long temporal range of approximately 3500 years (1501 BCE–2008 CE).
• Provides data from two distinct model simulations (full-forcing and orbital-only) allowing for forcing attribution studies.
• Includes a specific long record of volcanic eruptions integrated into the full-forcing simulation.

Limitations

• Key metadata such as row count, file size, and specific column names are not provided across all sources.
• The dataset's spatial coverage (geography) is not explicitly stated, limiting understanding of its global or regional scope.
• The last update date is unknown, which may affect confidence in the dataset's currency.

Provenance

Source

Simulations performed with the Community Earth System Model (CESM 1.2.2) by Woon Mi Kim et al. at the University of Bern.

Collection Method

Climate model simulation output, including full-forcing (volcanic, solar, greenhouse gases) and orbital-only forcing scenarios.

Time Range

1501 BCE to 2008 CE