Version Release 05

GRACE Tellus Monthly Mass Grids provides monthly
gravitational anomalies relative to a 2004-2010 time-mean baseline.
The data contained in this dataset are units of “Equivalent Water Thickness”
which represent the deviations of mass in terms of vertical extent
of water in centimeters. See the provider’s Monthly Mass
Grids Overview

for more details.

The GRACE Tellus (GRCTellus) Monthly Mass Grids Ocean dataset is produced
by three centers: CSR (U. Texas / Center for Space Research),
GFZ (GeoForschungsZentrum Potsdam), and JPL
(NASA Jet Propulsion Laboratory). Each center is a part
of the GRACE Ground System and generates Level-2 data
(spherical harmonic fields) used in this dataset.
The output includes spherical harmonic coefficients
of the gravity field and of the dealiasing fields used to compute them.
Since each center independently produces the coefficients, the results
may be slightly different. It is recommended for most users to
use the mean of all three datasets. See the provider’s choosing a
for more details.


  • Land leakage correction: Ocean signals are typically weaker
    than land signals, by factors of 2 and more, on seasonal and
    interannual time scales. To minimize leakage from high land
    signals onto ocean signals, a destriping filter has been applied
    which may cause cause correlations over much larger distances.

  • The GRCTellus Ocean datasets are optimized to examine regional
    ocean bottom pressure, but NOT intended to be spatially
    averaged to determine global mean ocean mass.

  • A filtered version of the GRCTellus Ocean dataset is also available
    which uses an alternative filtering method which may reduce leakage
    errors, and have results which agree better with altimetric sea surface

lwe_thickness_csrEquivalent liquid water thickness in centimeters calculated by
lwe_thickness_gfzEquivalent liquid water thickness in centimeters calculated by
lwe_thickness_jplEquivalent liquid water thickness in centimeters calculated by


NASA Jet Propulsion Laboratory (producer, licensor)
Google Earth Engine (host)
STAC Version 0.6.2
Keywords CRS, GFZ, JPL, NASA, grace, gravity, mass, ocean, tellus, water
License proprietary
Temporal Extent 7/30/2002, 5:00:00 PM - 1/4/2017, 4:00:00 PM
Citation D.P. Chambers. 2012. GRACE MONTHLY OCEAN MASS GRIDS NETCDF RELEASE 5.0. Ver. 5.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at [](
Type image_collection
GSD arc degreem
cube:dimensions {"x":{"type":"spatial","axis":"x","extent":[-180,180]},"y":{"type":"spatial","axis":"y","extent":[-90,90]},"temporal":{"type":"temporal","extent":["2002-07-31T00:00:00Z","2017-01-05T00:00:00Z"]},"bands":{"type":"bands","values":["lwe_thickness_csr","lwe_thickness_gfz","lwe_thickness_jpl"]}}