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Solar radiation enters the Earth's atmosphere with a portion being scattered by clouds and aerosols.

Processing, archiving and distributing Earth science data
at the NASA Langley Research Center

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MISR Level 2 TOA/Cloud Versioning

 

MISR Level 2 TOA/Cloud Versioning

MISR Level 2 Top of Atmosphere/Cloud Classifiers

ESDT Product File Name Prefix Current Quality Designations
MIL2TCCL
MIL2TCCF
MISR_AM1_TC_CLASSIFIERS
  • Stage 3 Validated: RCCM angle-by-angle cloud fractions
  • Stage 2 Validated: Angular Signature Cloud Mask (ASCM), RCCM/SDCM/ASCM-based classifiers, Altitude-based Scene Classifiers, Consensus Cloud Classifiers
  • Provisional: Support Vector Machine (SVM) Scene Classifiers
  • Beta: SVM Cirrus Fraction


Ver. # Production
Start Date
Product Updates Quality Transition
Current
F06_0011
12/01/2007 Data Product Specification Rev Q (PDF).

The entire mission is being reprocessed at this level.
Software has been ported over to Linux.
BestEstimate cloud fraction and average/median stereo heights for a 17.6km region have been added.

New ancillary files:

  • MISR_AM1_TASC_<month>_<year>_F02_04.hdf (starting November 01 2009)
  • MISR_AM1_CSSC_F02_06.hdf
  • Stage 3 Validated:
    RCCM angle-by-angle cloud fractions
  • Stage 2 Validated:Cloud Classifiers
F05_0010 06/01/2007 Data Product Specification Rev P (PDF).

This version marks the beginning of FIRSTLOOK vs. FINAL processing.
New ASCM thresholds for snow-ice have been added, and original thresholds for snow-ice free surfaces have also been modified.

New ancillary files:

  • MISR_AM1_ASCT_BDAS_(WIN,SPR,SUM,FALL)_DCCAM_
    T<901-932>_F02_0005.hdf
  • MISR_AM1_ASCT_BDAS_(WIN,SPR,SUM,FALL)_DBCAM_
    T<901-932>_F02_0005.hdf
  • MISR_AM1_ASCT_BDAS_(WIN,SPR,SUM,FALL)_CBCAM_
    T<901-932>_F02_0005.hdf
  • MISR_AM1_TASC_<month>_<year>_F02_03.hdf
  • Stage 2 Validated: ASCM
F05_0009 08/01/2006 Data Product Specification Rev N (PDF).

Removed deadband at equator in ASCM.
Improved Coarse Consensus Cloud Classifier.
SVM Cirrus Mask masked out over land.
Fixed normalization errors in Cloud Fractions.

New ancillary files:

  • MISR_TC_CL_SCI_CONFIG_F03_0006.txt
  • Provisional: Consensus Cloud Classifiers
F05_0008 02/21/2006 Data Product Specification Rev N (PDF).

Implemented Support Vector Machine (SVM) Scene Classifiers and Cirrus Mask.
New seasonal thresholds (land) for ASCM.

New ancillary files:

  • MISR_AM1_SVM_F01_0001.hdf
  • MISR_AM1_ASCT_BDAS_(WIN,SPR,SUM,FALL)_DCCAM_
    T<901-932>_F01_0004.hdf
  • MISR_AM1_ASCT_BDAS_(WIN,SPR,SUM,FALL)_DBCAM_
    T<901-932>_F01_0004.hdf
  • MISR_AM1_ASCT_BDAS_(WIN,SPR,SUM,FALL)_CBCAM_
    T<901-932>_F01_0004.hdf
  • Provisional: SVM Scene Classifiers
  • Beta: SVM Cirrus Fraction
F05_0007 12/01/2005 The TC_STEREO data corresponding to this version number contains errors which affect the results. See Quality Statement for details.
Use with caution!
 
F04_0006 05/13/2005 Data Product Specification Rev M (PDF).

New seasonal thresholds (land and ocean) for ASCM.

New ancillary files:

  • MISR_AM1_ASCT_BDAS_(WIN,SPR,SUM,FALL)_DCCAM_
    T<901-932>_F01_0003.hdf
  • MISR_AM1_ASCT_BDAS_(WIN,SPR,SUM,FALL)_DBCAM_
    T<901-932>_F01_0003.hdf
  • MISR_AM1_ASCT_BDAS_(WIN,SPR,SUM,FALL)_CBCAM_
    T<901-932>_F01_0003.hdf
  • MISR_AM1_CSSC_F01_05.hdf
  • Stage 2 Validated:ASCM (ocean including sea-ice)
  • Stage 1 Validated:ASCM (land including snow-ice)
F04_0005 11/28/2004 Data Product Specification Rev L (PDF).

New seasonal ocean thresholds for ASCM, consensus cloud classifiers implemented, removed visual discontinuities in ASCM.

New ancillary files:

  • MISR_AM1_TC_CL_SCI_CONFIG_F03_0004.txt
  • MISR_AM1_PGE8B_PCS_CONFIG_F03_0004.txt
  • MISR_AM1_ASCT_BDAS_(WIN,SPR,SUM,FALL)_DCCAM_
    T<901-932>_F01_0002.hdf
  • MISR_AM1_ASCT_BDAS_(WIN,SPR,SUM,FALL)_DBCAM_
    T<901-932>_F01_0002.hdf
  • MISR_AM1_ASCT_BDAS_(WIN,SPR,SUM,FALL)_CBCAM_
    T<901-932>_F01_0002.hdf
  • MISR_AM1_CSSC_F01_04.hdf
  • Stage 1 Validated: SDCM (all surface types), RCCM (ocean) classifiers, altitude-based classifiers
  • Provisional:RCCM (land) classifiers
  • Beta: Consensus cloud classifiers
F03_0004 02/04/2004 Data Product Specification Rev J (PDF).

Radiometric errors corrected.

 
F03_0003 12/08/2003

All version F03_0003 files covering orbits 15707-16930 and 21023-21823 were removed from the archive because they were processed with radiometric errors.
Do not use!

 
F03_0003 08/13/2003 Data Product Specification Rev J (PDF).

Angular Signature Cloud Mask implemented. Block Center Times for AN camera added to product.

New ancillary files:

  • MISR_AM1_TC_CL_SCI_CONFIG_F02_0003.txt
  • MISR_AM1_ASCT_BDAS_DCCAM_F01_0001.hdf
  • MISR_AM1_ASCT_BDAS_DBCAM_F01_0001.hdf
  • MISR_AM1_ASCT_BDAS_CBCAM_F01_0001.hdf
  • MISR_AM1_ASCI_BDAS_DCCAM_F01_0001.hdf
  • MISR_AM1_ASCI_BDAS_DBCAM_F01_0001.hdf
  • MISR_AM1_ASCI_BDAS_CBCAM_F01_0001.hdf
  • Provisional: ASCM
F02_0002 11/12/2002 Data Product Specification Rev G (PDF).

BestWinds versions of Stereo Heights are now used in the cloud classifiers. Level 1 Orbit-QA flag added to file.

New ancillary files:

  • MISR_AM1_TC_CL_SCI_CONFIG_F01_0001.txt
  • Stage 1 Validated: SDCM (ocean) -based, RCCM (ocean)-based Classifiers
F01_0001 04/15/2002 Data Product Specification Rev D (PDF).

No software change. The quality designation of some of the Cloud Classifiers fields was changed as a result of improvements in the quality of the Stereo Heights input.

New ancillary files:

  • MISR_AM1_TC_CL_SCI_CONFIG_F01_0001.txt
  • Provisional: SDCM-based Classifiers
Baseline:
F01_0001
12/03/2001 Data Product Specification Rev D (PDF).

Initial baseline for Level 2 TC Classifiers public release. Does not include ASCM (Angular Signature Cloud Mask) fields.

New ancillary files:

  • MISR_AM1_TC_CL_SCI_CONFIG_F01_0001.txt

Baseline ancillary files:

  • MISR_AM1_ARP_INFLTCAL_T006_F02_0001.hdf
  • MISR_AM1_ARP_CONFIG_F02_0002.hdf
  • MISR_AM1_ARP_PRFLTCAL_F02_0004.hdf
  • MISR_AM1_ARP_PRFLTCHAR_F02_0002.hdf
  • MISR_AM1_AGP_Pxxx_F01_24.hdf
  • Beta: all parameters