Antarctic GPS vertical deformation time series from 1979 to 2022, derived from seven surface mass balance (SMB) model products. The dataset was created by the Australian Ocean Data Network to evaluate model performance, computing elastic displacements using the Regional ElAstic Rebound calculator (REAR, v1.5). Data were processed into a common 2 km resolution grid and span from 1980 to 2022.
Use Cases
- Validate surface mass balance model outputs based on GPS-measured elastic deformation.
- Study glacial isostatic adjustment and ice mass variability in Antarctica based on the 43-year time series.
- Compare the performance of different regional climate models (e.g., RACMO, MAR, MERRA-2) based on derived elastic loading displacements.
Strengths
- Covers a 43-year time period from 1979 to 2022.
- Compares outputs from seven distinct SMB models with specified spatial resolutions (e.g., 2 km, 11 km, 35 km).
- Processed onto a standardized 2 km resolution grid with a uniform land mask applied.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data may reflect geographic/temporal/source bias inherent to data_gov_au.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Elastic displacements computed from SMB model anomalies using the Regional ElAstic Rebound calculator (REAR, v1.5).
- Time Range
- 1979 to 2022
- Freshness
- Last updated 2026-07-22 03:08:31.408437; freshness should be verified.
- Geography
- Antarctica (grounded ice sheet and offshore islands)