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  • 1
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    Unknown
    GRACE-FO Geopotential GAD Coefficients GFZ RL06 (2019)
    GFZ Data Services
    Details
    Publication Date: 2022-06-07
    Description: Abstract
    Description: Spherical harmonic coefficients that are zero over the continents, and provide the anomalous simulated ocean bottom pressure that includes non-tidal air and water contributions elsewhere during the specified timespan. These coefficients differ from GLO (or GAC) coefficients over the ocean domain by disregarding upper air density anomalies. The anomalous signals are relative to the mean field from 2003-2014.
    Keywords: Gravity Recovery And Climate Experiment Follow-On (GRACE-FO) ; Gravity Recovery And Climate Experiment (GRACE) ; Level-2 ; SHM ; Spherical Harmonic Model ; Gravitational Field ; GSM ; Geopotential ; Gravity Field ; Mass ; Mass Transport ; Total Water Storage ; Time Variable Gravity ; Mass Balance ; Gravity Anomaly ; Satellite Geodesy ; Ocean ; Ocean Bottom Pressure ; AOD ; Atmosphere ; Non-tidal Atmosphere ; Dealiasing Product ; EARTH SCIENCE 〉 SOLID EARTH 〉 GRAVITY/GRAVITATIONAL FIELD
    Language: English
    Type: Dataset , Dataset
    Format: 2 Files
    Format: application/octet-stream
    Format: application/octet-stream
    Location Call Number Expected Availability
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    DATA GFZ
  • 2
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    GRACE Geopotential GSM Coefficients GFZ RL06 (2018)
    GFZ Data Services
    Details
    Publication Date: 2022-06-07
    Description: Abstract
    Description: Spherical harmonic coefficients representing an estimate of Earth's mean gravity field during the specified timespan derived from GRACE mission measurements. These coefficients represent the full magnitude of land hydrology, ice, and solid Earth processes. Further, they represent atmospheric and oceanic processes not captured in the accompanying GAC product.
    Keywords: Gravity Recovery And Climate Experiment (GRACE) ; Level-2 ; SHM ; Spherical Harmonic Model ; Gravitational Field ; GSM ; Geopotential ; Gravity Field ; Mass ; Mass Transport ; Total Water Storage ; Time Variable Gravity ; Mass Balance ; Gravity Anomaly ; Satellite Geodesy ; EARTH SCIENCE 〉 SOLID EARTH 〉 GRAVITY/GRAVITATIONAL FIELD 〉 GRAVITY ; EARTH SCIENCE 〉 SOLID EARTH 〉 GRAVITY/GRAVITATIONAL FIELD 〉 GRAVITATIONAL FIELD ; Earth Observation Satellites 〉 NASA Earth System Science Pathfinder 〉 GRACE ; Earth Remote Sensing Instruments 〉 Passive Remote Sensing 〉 Magnetic/Motion Sensors 〉 Accelerometers 〉 GRACE ACC
    Language: English
    Type: Dataset , Dataset
    Format: 3 Files
    Format: application/octet-stream
    Format: application/octet-stream
    Format: application/octet-stream
    Location Call Number Expected Availability
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    DATA GFZ
  • 3
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    Unknown
    GRACE-FO Geopotential GSM Coefficients GFZ RL06 (2019)
    GFZ Data Services
    Details
    Publication Date: 2023-04-21
    Description: Abstract
    Description: Spherical harmonic coefficients representing an estimate of Earth's mean gravity field during the specified timespan derived from GRACE-FO mission measurements. These coefficients represent the full magnitude of land hydrology, ice, and solid Earth processes. Further, they represent atmospheric and oceanic processes not captured in the accompanying GAC product.
    Keywords: Gravity Recovery And Climate Experiment Follow-On (GRACE-FO) ; Gravity Recovery And Climate Experiment (GRACE) ; Level-2 ; SHM ; Spherical Harmonic Model ; Gravitational Field ; GSM ; Geopotential ; Gravity Field ; Mass ; Mass Transport ; Total Water Storage ; Time Variable Gravity ; Mass Balance ; Gravity Anomaly ; Satellite Geodesy ; EARTH SCIENCE 〉 SOLID EARTH 〉 GRAVITY/GRAVITATIONAL FIELD 〉 GRAVITY ; EARTH SCIENCE 〉 SOLID EARTH 〉 GRAVITY/GRAVITATIONAL FIELD 〉 GRAVITATIONAL FIELD
    Language: English
    Type: Dataset , Dataset
    Format: 3 Files
    Format: application/octet-stream
    Format: application/octet-stream
    Format: application/octet-stream
    Location Call Number Expected Availability
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    DATA GFZ
  • 4
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    Unknown
    Post-processed GRACE/GRACE-FO Geopotential GSM Coefficients GFZ RL06 (Level-2B Product) (2019)
    GFZ Data Services
    Details
    Publication Date: 2023-04-21
    Description: Abstract
    Description: Version History:09 June 2020:Release of Version 0002. This is an update of Version 0001 of the same data set. All changes and updates are documented in the changelog available via the data download section. Previously released versions of this data set are available at ftp://isdcftp.gfz-potsdam.de/grace/GravIS/GFZ/Level-2B/old_versions---------------------------------------------------------------------------------------------Post-processed GRACE/GRACE-FO spherical harmonic coefficients of GFZ RL06 Level-2 GSM products representing an estimate of Earth's gravity field variations during the specified timespan. Post-processing steps comprise: (1) subtraction of a long-term mean field; (2) optionally, decorrelation and smoothing with VDK filter (anisotropic filter taking the actual error covariance information of the underlying GSM coefficients into account, see Horvath et al. (2018)); (3) replacement of coefficients C20, C30 (only for the months starting from 2016/11 and later), C21 and S21 and its formal standard deviations by values estimated from a combination of GRACE/GRACE-FO and Satellite Laser Ranging (SLR); (4) subtraction of linear trend caused by Glacial Isostatic Adjustment (GIA) as provided by a numerical model; (5) insertion of geocenter coefficients (C10, C11, S11); and (6) removal of estimated aliased signal of the S2 tide (161 days period). These coefficients represent signals caused by water mass redistribution over the continents and in the oceans.These post-processed GRACE/GRACE-FO GSM products are denoted as Level-2B products.There are multiple variants of Level-2B products available that differ by the characteristics of the anisotropic filter applied. These variants are distinguishable by the following strings in the product file names:- 'NFIL': Level-2B product is not filtered- 'VDK1': Level-2B product is filtered with VDK1- 'VDK2': Level-2B product is filtered with VDK2- 'VDK3': Level-2B product is filtered with VDK3- 'VDK4': Level-2B product is filtered with VDK4- 'VDK5': Level-2B product is filtered with VDK5- 'VDK6': Level-2B product is filtered with VDK6- 'VDK7': Level-2B product is filtered with VDK7- 'VDK8': Level-2B product is filtered with VDK8The individual auxiliary data sets and models used during the post-processing steps mentioned above are provided as well (in the aux_data folder):- 'GRAVIS-2B_2002095-2020091_GFZOP_0600_NFIL_0002.gz': Long-term mean field calculated as unweighted average of the 183 available GFZ RL06 GSM products in the period from 2002/04 up to and including 2020/03.- 'GRAVIS-2B_GFZOP_GRACE+SLR_LOW_DEGREES_0002.dat': time series of coefficients C20, C30, C21 and S21 estimated from a combination of GRACE/GRACE-FO and SLR- 'GRAVIS-2B_GIA_ICE-6G_D_VM5a_0002.gz': Model from Peltier et al. (2018) for subtraction of linear trend caused by GIA- 'GRAVIS-2B_GFZOP_GEOCENTER_0002.dat': Time series with geocenter coefficients estimated from GFZ RL06Further information about the Level-2B products and the auxiliary data is provided in the header of the corresponding data files.
    Keywords: Gravity Recovery And Climate Experiment (GRACE) ; GRACE Follow-on (GRACE-FO) ; Level-2 ; Level-2B ; SHM ; Spherical Harmonic Model ; Gravitational Field ; GSM ; Geopotential ; Gravity Field ; Mass ; Mass Transport ; Total Water Storage ; Time Variable Gravity ; Mass Balance ; Gravity Anomaly ; Satellite Geodesy ; EARTH SCIENCE 〉 SOLID EARTH 〉 GRAVITY/GRAVITATIONAL FIELD 〉 GRAVITY ; EARTH SCIENCE 〉 SOLID EARTH 〉 GRAVITY/GRAVITATIONAL FIELD 〉 GRAVITATIONAL FIELD ; Earth Observation Satellites 〉 NASA Earth System Science Pathfinder 〉 GRACE
    Language: English
    Type: Dataset , Dataset
    Location Call Number Expected Availability
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    DATA GFZ
  • 5
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    Post-processed GRACE/GRACE-FO Geopotential GSM Coefficients COST-G RL01 (Level-2B Product) (2020)
    GFZ Data Services
    Details
    Publication Date: 2023-04-21
    Description: Abstract
    Description: Version History: 15 June 2020: Initial release of the data. Note that the initial version number is 0002 in order to reflect the consistent data processing of this data set and Version 0002 of the data set Dahle & Murböck (2019, http://doi.org/10.5880/GFZ.GRAVIS_06_L2B). --------------------------------------------------------------------------------------------- Post-processed GRACE/GRACE-FO spherical harmonic coefficients of COST-G RL01 Level-2 GSM products representing an estimate of Earth's gravity field variations during the specified timespan. Post-processing steps comprise: (1) subtraction of a long-term mean field; (2) optionally, decorrelation and smoothing with VDK filter (anisotropic filter taking the actual error covariance information of the underlying GSM coefficients into account, see Horvath et al. (2018)); (3) replacement of coefficients C20, C30 (only for the months starting from 2016/11 and later), C21 and S21 and its formal standard deviations by values estimated from a combination of GRACE/GRACE-FO and Satellite Laser Ranging (SLR); (4) subtraction of linear trend caused by Glacial Isostatic Adjustment (GIA) as provided by a numerical model; (5) insertion of geocenter coefficients (C10, C11, S11); and (6) removal of estimated aliased signal of the S2 tide (161 days period). These coefficients represent signals caused by water mass redistribution over the continents and in the oceans. These post-processed GRACE/GRACE-FO GSM products are denoted as Level-2B products. There are multiple variants of Level-2B products available that differ by the characteristics of the anisotropic filter applied. These variants are distinguishable by the following strings in the product file names: - 'NFIL': Level-2B product is not filtered - 'VDK1': Level-2B product is filtered with VDK1 - 'VDK2': Level-2B product is filtered with VDK2 - 'VDK3': Level-2B product is filtered with VDK3 - 'VDK4': Level-2B product is filtered with VDK4 - 'VDK5': Level-2B product is filtered with VDK5 - 'VDK6': Level-2B product is filtered with VDK6 - 'VDK7': Level-2B product is filtered with VDK7 - 'VDK8': Level-2B product is filtered with VDK8 The individual auxiliary data sets and models used during the post-processing steps mentioned above are provided as well (in the aux_data folder): - 'GRAVIS-2B_2002095-2020091_GFZOP_0600_NFIL_0002.gz': Long-term mean field calculated as unweighted average of the 183 available GFZ RL06 GSM products in the period from 2002/04 up to and including 2020/03. - 'GRAVIS-2B_COSTG_GRACE+SLR_LOW_DEGREES_0002.dat': time series of coefficients C20, C30, C21 and S21 estimated from a combination of GRACE/GRACE-FO and SLR - 'GRAVIS-2B_GIA_ICE-6G_D_VM5a_0002.gz': Model from Peltier et al. (2018) for subtraction of linear trend caused by GIA - 'GRAVIS-2B_COSTG_GEOCENTER_0002.dat': Time series with geocenter coefficients estimated from COST-G RL01 Further information about the Level-2B products and the auxiliary data is provided in the header of the corresponding data files.
    Keywords: Gravity Recovery And Climate Experiment (GRACE) ; GRACE Follow-on (GRACE-FO) ; Level-2 ; Level-2B ; SHM ; Spherical Harmonic Model ; Gravitational Field ; GSM ; Geopotential ; Gravity Field ; Mass ; Mass Transport ; Total Water Storage ; Time Variable Gravity ; Mass Balance ; Gravity Anomaly ; Satellite Geodesy ; Earth Observation Satellites 〉 NASA Earth System Science Pathfinder 〉 GRACE ; EARTH SCIENCE 〉 SOLID EARTH 〉 GRAVITY/GRAVITATIONAL FIELD 〉 GRAVITATIONAL FIELD ; EARTH SCIENCE 〉 SOLID EARTH 〉 GRAVITY/GRAVITATIONAL FIELD 〉 GRAVITY
    Type: Dataset , Dataset
    Location Call Number Expected Availability
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    DATA GFZ
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