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| GravIS GFZ RL06 Level-2B Products |
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DESCRIPTION:
  This directory contains the most recent version of GFZ RL06 Level-2B products.
  Current most recent version is: 0004

  The following files are available:

  ./NFIL/GRAVIS-2B_???????-???????_GFZOP_0600_NFIL_0004.gz   => unfiltered Level-2B products
  ./VDK1/GRAVIS-2B_???????-???????_GFZOP_0600_VDK1_0004.gz   => VDK1 filtered Level-2B products
  ./VDK2/GRAVIS-2B_???????-???????_GFZOP_0600_VDK2_0004.gz   => VDK2 filtered Level-2B products
  ./VDK3/GRAVIS-2B_???????-???????_GFZOP_0600_VDK3_0004.gz   => VDK3 filtered Level-2B products
  ./VDK4/GRAVIS-2B_???????-???????_GFZOP_0600_VDK4_0004.gz   => VDK4 filtered Level-2B products
  ./VDK5/GRAVIS-2B_???????-???????_GFZOP_0600_VDK5_0004.gz   => VDK5 filtered Level-2B products
  ./VDK6/GRAVIS-2B_???????-???????_GFZOP_0600_VDK6_0004.gz   => VDK6 filtered Level-2B products
  ./VDK7/GRAVIS-2B_???????-???????_GFZOP_0600_VDK7_0004.gz   => VDK7 filtered Level-2B products
  ./VDK8/GRAVIS-2B_???????-???????_GFZOP_0600_VDK8_0004.gz   => VDK8 filtered Level-2B products

  ./aux_data/   => subdirectory containing auxiliary products used during Level-2B generation
  ./aux_data/GRAVIS-2B_2002095-2020091_GFZOP_0600_NFIL_0004.gz   => Long-term mean field subtracted from Level-2B products
  ./aux_data/GRAVIS-2B_GFZOP_GEOCENTER_0004.dat                  => Degree-1 coefficients inserted into Level-2B products
  ./aux_data/GRAVIS-2B_GFZOP_GRACE+SLR_LOW_DEGREES_0004.dat      => GRACE+SLR-based replacement time series for coefficients C20, C30, C21 and S21
  ./aux_data/GRAVIS-2B_GIA_ICE-6G_D_VM5a_0004.gz                 => GIA model applied as correction for Level-2B products

  ./old_versions/   => subdirectory where previously released versions of GFZ RL06 Level-2B products are archived
  ./GFZ_GRAVIS_06_L2B_changelog.pdf   => document containing the version history of GFZ RL06 Level-2B products

CITATION:
  When using this version of GravIS GFZ RL06 Level-2B products, please use the following citation:

  Dahle, Christoph; Murboeck, Michael (2019):
  Post-processed GRACE/GRACE-FO Geopotential GSM Coefficients GFZ RL06 (Level-2B Product).
  V. 0004. GFZ Data Services. https://doi.org/10.5880/GFZ.GRAVIS_06_L2B

CONTACT:
  C. Dahle, M. Murboeck
  GFZ Helmholtz Centre for Geosciences
  Department 1: Geodesy
  Section 1.2: Global Geomonitoring and Gravity Field
  Email: grace@gfz.de