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MISR Level 3 Albedo and Cloud Versioning

Component Global Albedo Product (CGAL) and Component Global Cloud Product (CGCL) - Daily, Monthly, Quarterly, Yearly products

Processing Status

ESDT Product File Name Prefix Current Quality Designations
MIL3DAL, MIL3MAL, MIL3QAL, MIL3YAL,
MIL3DALN, MIL3MALN, MIL3QALN, MIL3YALN
MISR_AM1_CGAL
  • Stage 2: CLOUD - Height Histogram
  • Stage 1: ALBEDO - Expansive and Restrictive Albedo (except at high latitudes), CLOUD - Wind Vectors
  • Beta: ALBEDO - Local Albedo
MISR maturity level definitions | Quality Summary
MIL3DCLD, MIL3MCLD, MIL3QCLD, MIL3YCLD,
MI3DCLDN, MI3MCLDN, MI3QCLDN, MI3YCLDN
MISR_AM1_CGCL

Note: Level 3 is a summary of Level 2. This page covers changes to the Level 3 software itself for each product version, but you should also consult the TOA/Cloud Albedo Versioning statement for changes to the Level 2 data being summarized.

Ver. # Production
Start Date
Software Configuration/
Product Impact
Quality Transition
Current
F06_0022 (albedo)
F02_0022 (cloud)
08/01/2007 Data Product Specification Rev P.

Now have a time dimension in all fields for netCDF files (even though there is only one time value). This was a change requested by data product users to integrate better with existing tools such as vcdat that expect a time dimension.

 
F06_0020 (albedo)
F02_0020 (cloud)
10/02/2006 Data Product Specification Rev O.

Added netCDF version. These products are the same format as the HDF-EOS products except there is one file for each grid resolution. Example file name: MISR_AM1_CGCL_0_5_DEG_JUN_01_2003_F02_0020.nc

 
F06_0016 (albedo)
F02_0016 (cloud)
02/15/2006 Data Product Specification Rev N.

No user visible changes, other than changes in Level 2 data being summarized (see TOA/Cloud Versioning statement).

 
F06_0014 (albedo)
F02_0014 (cloud)
12/01/2005 Data Product Specification Rev N.

Initial baseline for Level 3 Component Global Cloud Product (CGCL) public release.

Baseline ancillary files:
  • MISR_AM1_AGP_Pxxx_F01_24.hdf

For Albedo (CGAL) product, this version fixes an error in the "Time of Observation" data, which in the previous version was missing many Level 2 observations. The actual Level 3 averages contained all of these observations, they simply were not being recorded in the "Time of Observation" vdata. The current version does correctly record all the Level 2 observations.

  • Stage 2 CLOUD - Height Histogram
  • Stage 1 CLOUD - Wind Vectors
  • Stage 1 ALBEDO - Expansive and Restrictive Albedos
F06_0012 (albedo) 05/13/2005 Data Product Specification Rev M.

Initial baseline for Level 3 Component Global Albedo Product (CGAL) public release.

Baseline ancillary files:
  • MISR_AM1_AGP_Pxxx_F01_24.hdf
  • Beta all parameters

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