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Description

Glacial isostatic adjustment (GIA) is an ongoing geophysical process and is measured by gravimetry satellites like GRACE and GRACE-FO. To isolate signals of contemporary surface mass loss in the cumulative satellite gravimetry measurements, contemporary GIA rates are computed and subtracted from the satellite gravimetry observations. The GIA correction models provided here are filtered such that they are compatible with Level-3 post-processing filters applied to GRACE(-FO) data as indicated in the [product_id]. In this way, user can effectively assess the impact of the applied GIA correction, and substitute different GIA models should that be desired. This GIA dataset is mapped into 1.0-degree global grid in netCDF format.

Product Summary

Platforms
GRACE
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Spatial Resolution
1 Decimal Degrees x 1 Decimal Degrees
Geographic Region
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
1900-01-01 to 2100-12-31
Data Partner
GRACE Tellus, Jet Propulsion Laboratory, NASA (NASA/JPL/GRACE-TELLUS-0001) ,
Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA (NASA/JPL/PODAAC)
Concept ID
C2689796219-POCLOUD
Data State
COMPLETE
Number of Files/Granules
3
Processing Level
3
Published
Updated
Science Keywords
Gravity Anomalies

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

NASA Jet Propulsion Laboratory (JPL). (2019). TELLUS GRACE Level-3 1.0-degree Glacial Isostatic Adjustment v1.0 datasets produced by JPL [Data set]. NASA Physical Oceanography Distributed Active Archive Center. https://doi.org/10.5067/GRGIA-1DJ10 Date Accessed: 2025-12-14

Documents

Variables

Variables are a set of physical properties whose values determine the characteristics or behavior of something. For example, temperature and pressure are variables of the atmosphere. Parameters and variables can be used interchangeably. Variable level attributes provide individual information for each variable.

The Name in this table is the variable name. Fill value indicates missing or undefined data points in a variable. Valid range is the range of values the variable can store. Scale factor is used to increase or decrease the size of an object and can be used to correct for distortion. For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor
GIA_geoid_rate_0km_smooth GIA geoid rate and uplift rate coefficients for a compressible Earth,computed (by Geruo A) using the ICE5G ice history and VM2 viscosity profile. The normalization of the harmonics, for both the geoid rate and the uplift rate,is the conventional normalization used for the Stokes coefficients of the geoid.From: A, G., J. Wahr, and S. Zhong,"Computations of the viscoelastic response of a 3-D compressible Earth to surface loading: an application to Glacial Isostatic Adjustment in Antarctica and Canada", submitted to Geophys. J. Int. m/year double -99999 -0.0003 to 0.002 1
GIA_geoid_rate_300km_smooth GIA geoid rate and uplift rate coefficients for a compressible Earth,computed (by Geruo A) using the ICE5G ice history and VM2 viscosity profile. The normalization of the harmonics, for both the geoid rate and the uplift rate,is the conventional normalization used for the Stokes coefficients of the geoid.From: A, G., J. Wahr, and S. Zhong,"Computations of the viscoelastic response of a 3-D compressible Earth to surface loading: an application to Glacial Isostatic Adjustment in Antarctica and Canada", submitted to Geophys. J. Int. m/year double -99999 -0.0003 to 0.001 1
GIA_geoid_rate_500km_smooth GIA geoid rate and uplift rate coefficients for a compressible Earth,computed (by Geruo A) using the ICE5G ice history and VM2 viscosity profile. The normalization of the harmonics, for both the geoid rate and the uplift rate,is the conventional normalization used for the Stokes coefficients of the geoid.From: A, G., J. Wahr, and S. Zhong,"Computations of the viscoelastic response of a 3-D compressible Earth to surface loading: an application to Glacial Isostatic Adjustment in Antarctica and Canada", submitted to Geophys. J. Int. m/year double -99999 -0.0003 to 0.001 1
GIA_mass_rate_0km_smooth GIA geoid rate and uplift rate coefficients for a compressible Earth,computed (by Geruo A) using the ICE5G ice history and VM2 viscosity profile. The normalization of the harmonics, for both the geoid rate and the uplift rate,is the conventional normalization used for the Stokes coefficients of the geoid.From: A, G., J. Wahr, and S. Zhong,"Computations of the viscoelastic response of a 3-D compressible Earth to surface loading: an application to Glacial Isostatic Adjustment in Antarctica and Canada", submitted to Geophys. J. Int. m/year double -99999 -0.02 to 0.06 1
GIA_mass_rate_300km_smooth GIA geoid rate and uplift rate coefficients for a compressible Earth,computed (by Geruo A) using the ICE5G ice history and VM2 viscosity profile. The normalization of the harmonics, for both the geoid rate and the uplift rate,is the conventional normalization used for the Stokes coefficients of the geoid.From: A, G., J. Wahr, and S. Zhong,"Computations of the viscoelastic response of a 3-D compressible Earth to surface loading: an application to Glacial Isostatic Adjustment in Antarctica and Canada", submitted to Geophys. J. Int. m/year double -99999 -0.01 to 0.05 1
GIA_mass_rate_500km_smooth GIA geoid rate and uplift rate coefficients for a compressible Earth,computed (by Geruo A) using the ICE5G ice history and VM2 viscosity profile. The normalization of the harmonics, for both the geoid rate and the uplift rate,is the conventional normalization used for the Stokes coefficients of the geoid.From: A, G., J. Wahr, and S. Zhong,"Computations of the viscoelastic response of a 3-D compressible Earth to surface loading: an application to Glacial Isostatic Adjustment in Antarctica and Canada", submitted to Geophys. J. Int. m/year double -99999 -0.007 to 0.04 1
lat latitude value at each pixel degrees_north double N/A -89.5 to 89.5 1
lat_bounds latitude values at the north and south bounds of each pixel degrees_north double N/A N/A 1
lon longitude value at each pixel degrees_east double N/A 0.5 to 359.5 1
lon_bounds longitude values at the west and east bounds of each pixel degrees_east double N/A N/A 1
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