TELLUS_GRACE_MASCON_GRID_RL05_V1_1

PODAAC-TEMSC-OCL05

Version 1
  • Abstract
    The monthly mass grids provided here contain global water storage anomalies relative to a time-mean as derived from GRACE time-variable gravity data. This dataset provides both land and ocean mass anomalies, and is best for users who want to apply their own algorithm to separate between land and ocean mass very near coastlines. The storage anomalies are given in equivalent water thickness units (in NetCDF format). The solution provided here is derived from solving for monthly gravity field variations in terms of spherical cap mass concentration functions, rather than spherical harmonic coefficients. Additionally, realistic geophysical information is introduced during the solution inversion to intrinsically remove correlated error. Thus, these mascon solutions do not need to be destriped or smoothed, like traditional spherical harmonic gravity solutions. The mascon solution consists of 4,551 relatively independent estimates of surface mass change (we solve for equal-area 3-degree mascons, the placement of which is found at ftp://podaac.jpl.nasa.gov/allData/tellus/L3/mascon/RL05/JPL/non-CRI/netcdf). For more information, please visit http://grace.jpl.nasa.gov/data/get-data/jpl_global_mascons/. For a detailed description on the mascon solution, including the mathematical derivation, implementation of geophysical constraints, and solution validation, please see Watkins et al., 2015, doi: 10.1002/2014JB011547.

Data Identification Fields:

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    Data Dates
    Creation
    Last Revision
    Processing Level

    3

    Quality
    Collection Progress

    Not Provided

Related URLs
    Science Keywords
    • EARTH SCIENCE
    • SOLID EARTH
    • GEODETICS/GRAVITY
    • GRAVITY

Acquisition Information Fields:

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Platforms
  • unknown
    GRACE
    Instruments
    • GRACE SCA
    • GRACE ACC
    • GRACE KBR

Temporal Information Fields:

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Spatial Information Fields:

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    Coverage Type Zone Identifier Geometry Granule Representation
    HORIZONTAL CARTESIAN CARTESIAN
Location Keywords
    • GEOGRAPHIC REGION
    • GLOBAL

Data Centers

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  • TELLUS
    PROCESSOR

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  • PO.DAAC
    ARCHIVER

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  • Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, N
    ARCHIVER
    Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA

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Data Contacts

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  • User
    Technical Contact
    User Services

    Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, N

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Collection Citations Fields:

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