ECHAM6-wiso Modeled Water Isotopes and Precipitation for EastGRIP, Greenland (1990-2020)

EastGRIP drilling location in Greenland is the focus of this 6-hourly model output from the isotope-enabled ECHAM6-wiso atmosphere GCM, nudged to ERA-5 reanalysis. The dataset covers the period from January 1990 to December 2020 and was produced by Alexandre Cauquoin of The University of Tokyo. It contains variables such as delta values for 18O and deuterium in vapor and precipitation, as well as total precipitation.

Use Cases

• Validate snowpack model inputs based on the provided d18O and dD values in vapor and precipitation.
• Study the relationship between atmospheric humidity and precipitation isotopes based on the lowest atmospheric layer vapor data.
• Analyze long-term trends in precipitation amount and isotopic composition for a specific Greenland location over a 31-year period.
• Compare modeled isotopic signals with ice core records from the EastGRIP site.

Strengths

• Data is from a high-resolution (T127L95) isotope-enabled climate model nudged to a modern reanalysis product (ERA-5).
• Covers a specific, scientifically relevant location (EastGRIP, Greenland) over a 31-year period (1990-2020).
• Provides 6-hourly temporal resolution for detailed process studies.
• Includes multiple related variables (isotope deltas for vapor and precipitation, total precipitation) for a coherent analysis.

Limitations

• Row count and dataset size are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred from the description after download.
• Data is limited to a single grid cell, which may not be representative of broader regional patterns.

Provenance

Source

The University of Tokyo (Author: Alexandre Cauquoin)

Collection Method

Output from the ECHAM6-wiso isotope-enabled atmosphere GCM, nudged to ERA-5 reanalysis.

Time Range

1990-01-01 to 2020-12-31

Geography

Single grid cell centered at 75.27N, -36.57E (EastGRIP drilling location, Greenland)