GRACE Monthly Mass Grids - Global Mascons (NASA/GRACE/MASS_GRIDS/MASCON)

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) Global Mascon dataset
is based on Level-1 GRACE observations and processed
at NASA Jet Propulsion Laboratory (JPL).

This dataset uses a-priori constraints in space and time to
estimate global, monthly gravity fields in terms of equal-area
3°x3° spherical cap mass concentration (mascon) functions to minimize the
effect of measurement errors. No additional empirical destriping
filter has been applied to the data. This results in better S/N
ratios of the mascon fields compared to the conventional
spherical-harmonic solutions.

Note

• Mascons which lie on coastlines contain mixed land and ocean signals.
  A version of this dataset with the Coastline Resolution Improvement
  (CRI) filter applied to separate the land and ocean portions of mass
  within each land/ocean mascon in a post-processing step. This
  dataset is available at
  NASA/GRACE/MASS_GRIDS/MASCON_CRI.

• The data are represented on a 1/2 degree lon-lat grid, but they
  represent the 3x3 degree equal-area caps, which is the current
  native resolution of JPL-RL05M.