MODIS Combined (Terra + Aqua) 8-day composite L4 500m FPAR,LAI (MCD_PR15A2)

Document Revision: 10.11.2013

PGE Version  : 6.0.5
PGE Release  : 06.09.2014 _SS_


Product ID(s): MCD15A2H MODIS Terra + Aqua Gridded 500m FPAR and LAI (8-day composite) 	       

Description:

   MODIS Level-4 500m Combined Fraction of Photosynthetically Active Radiation
   (FPAR), and Leaf Area Index (LAI).  This 8-day combined algorithm
   produces a single FPAR,LAI tile product from at least one candidate daily 
   MOD15A1 and one MYD15A1 FPAR,LAI products produced by PGE33.
   These are tiled using Sinuoidal grid. 
   
   All FPAR and LAI data is stored in HDFEOS v.2.1.x files, as separate 
   grid fields within the MOD_Grid_MCD15A2H grid object.  Note that the LAI
   product range of {0..100} should be interpreted biophysically as
   ranging from {0...10.0}, with one digit of implied precision.
   The HDFEOS file format produced by PGE 34 is the final 8-day 
   FPAR, LAI composite product archived at EDC.
 
Significant changes:
   -- In collection 6 the input was changed to MOD15A1H/MYD15A1H, 500m daily LAI/FPAR and the output is
        500m 8 day LAI/FAR composites.
        
   -- In version 5.0.0 all metadata issues were fixed as reported by LDOPE. All lookup tables were updated.
      Weights have been introduced when calculating average LAI over distribution of solutions.
      Additionally two new SDSs to the product:
          FparStdDev_500m and LaiStdDev_500m
      They track the FPAR and LAI standard deviation for pixels produced
      by the main (R-T) method.
   -- There is a new FparLai_QC bit layout based on the changes recommended by LDOPE:

         BITFIELDS
       -------------
        0,0  MODLAND_QC bits
             '0' =  Good Quality (main algorithm with or without saturation)
             '1' =  Other Quality (back-up algorithm or fill values)

        1,1 SENSOR
             '0' = Terra
             '1' = Aqua

        2,2  DEADDETECTOR
             '0' = Detectors apparently fine for up to 50% of channels 1,2
             '1' = Dead detectors caused >50% adjacent detector retrieval

        3,4  CLOUDSTATE (this inherited from Aggregate_QC bits {0,1} cloud state)
             '00' = 0 Significant clouds NOT present (clear)
             '01' = 1 Significant clouds WERE present
             '10' = 2 Mixed cloud present on pixel
             '11' = 3 Cloud state not defined,assumed clear

        5,7  SCF_QC (3-bit, (range '000'..100') 5 level Confidence Quality score.
             '000' = 0, Main (RT) method used, best result possible (no saturation)
             '001' = 1, Main (RT) method used with saturation. Good,very usable
             '010' = 2, Main (RT) method failed due to bad geometry, empirical algorithm used
             '011' = 3, Main (RT) method failed due to problems other than geometry, empirical algorithm used
             '100' = 4, Pixel not produced at all, value coudn't be retrieved (possible reasons: bad L1B data, unusable MOD09GA data)
Versioning:

   We currently version-stamp our source code, ancillary files and product files
   with an identical version and release-timedate stamp, called UM_VERSION.
   Users may extract this version stamp from any product or ancillary file
   using a command like this: 

               ncdump -h MOD15A2_ANC_RI4.HDF | grep UM_VERSION.
               
   The latest certified codeset carries this version stamp as a global file
   attribute in the product files, ancillary files, and within the executable:
   UM_VERSION = 
    UM_VERSION = "U.MONTANA MODIS PGE34 Vers 5.0.4 Rev 4 Release 10.18.2006 23:59"

Point of Contact:

   Sudipta Sarkar 		      SSAI
   LDOPE                             
   NASA/GSFC Code 922
   Greenbelt, MD 20771


   Sadashiva Devadiga
   LDOPE
   NASA/GSFC Code 619
   Greenbelt, MD 20771


Principal Investigator(s):
   Ranga Myneni
   Department of Geography
   675 Commonwealth Avenue
   Boston University
   Boston, MA 02215

============================================================================
Generic Constructs

ECS Metadata Strings:

   Notes:
      1. "FR" is an abbreviation for "FREE_RANGE".
      2. "D/T" is an abbreviation for "DATE/TIME"
      3. (A) means that multiple values are stored within a single array.
      4. A value of "Variable" indicates that this value will vary
         according to the granule being processed.
      5. "M" means class M.
      6. (C) means that multiple values are stored as class members.

CoreMetadata.0
    This string will contain the following PVL fields:

                                                     #
        Field Name                        Data      of   Value
                                          Type    Values
  GROUP = INVENTORYMETADATA

    GROUP = CollectionDescriptionClass
        SHORTNAME                         STRING     1   "MCD15A2H"
        VERSIONID                         INTEGER    1   6
    END_GROUP = CollectionDescriptionClass

    GROUP = ECSDataGranule        
        REPROCESSINGPLANNED               STRING     1   "further update is anticipated"
        REPROCESSINGACTUAL                STRING     1   Variable
        LOCALGRANULEID                    STRING     1   Variable
        DAYNIGHTFLAG                      STRING     1   Variable
        PRODUCTIONDATETIME                D/T        1   Variable
        LOCALVERSIONID                    STRING     1   Variable
    END_GROUP = ECSDataGranule

    GROUP = PGEVersionClass
        PGEVERSION                        STRING     1   Variable
    END_GROUP = PGEVersionClass

    GROUP = InputGranule
        INPUTPOINTER                      STRING   FR(A) Variable
    END_GROUP = InputGranule

    GROUP = RangeDateTime
        RANGEBEGINNINGDATE                DATE       1   Variable
        RANGEBEGINNINGTIME                TIME       1   Variable
        RANGEENDINGDATE                   DATE       1   Variable
        RANGEENDINGTIME                   TIME       1   Variable
    END_GROUP = RangeDateTime

    GROUP = SpatialDomainContainer
      GROUP = HorizontalSpatialDomainContainer
        GROUP = GPolygon
          GROUP = GRing
              EXCLUSIONGRINGFLAG          STRING     1   "N"
          END_GROUP = GRing

          GROUP = GRingPoint
              GRINGPOINTLATITUDE          DOUBLE   4(A)  Variable
              GRINGPOINTLONGITUDE         DOUBLE   4(A)  Variable
              GRINGPOINTSEQUENCENO        INTEGER  4(A)  Variable
          END_GROUP = GRingPoint
        END_GROUP = GPolygon
      END_GROUP = HorizontalSpatialDomainContainer
    END_GROUP = SpatialDomainContainer

    GROUP = MeasuredParameter
        PARAMETERNAME                     STRING     1   "MCDPR15A2H"

        GROUP = QAFlags
            AUTOMATICQUALITYFLAG          STRING     1    "Pass"
            AUTOMATICQUALITYFLAGEXPLANATION
                                          STRING     1    "No automatic quality assessment is performed in the PGE"                       				
            SCIENCEQUALITYFLAG            STRING     1    Variable
            SCIENCEQUALITYFLAGEXPLANATION
                                          STRING     1    "See http://landweb.nascom.nasa.gov/cgi-bin/QA_WWW/qaFlagPage.cgi?sat=terra
                                                           for the product Science Quality status"                                                                                     
	END_GROUP = QAFlags

        GROUP = QAStats
            QAPERCENTINTERPOLATEDDATA      INTEGER    1   Variable
            QAPERCENTMISSINGDATA           INTEGER    1   Variable
            QAPERCENTOUTOFBOUNDSDATA       INTEGER    1   Variable
            QAPERCENTCLOUDCOVER            INTEGER    1   Variable
        END_GROUP = QAStats
    ENDGROUP = MeasuredParameter

    GROUP = AdditionalAttributes
        ADDITIONALATTRIBUTENAME          STRING   FR(C) Variable
        PARAMETERVALUE                   STRING   FR(C) Variable

        ADDITIONALATTRIBUTENAME.1  = QAPERCENTGOODQUALITY
        ADDITIONALATTRIBUTENAME.2  = QAPERCENTOTHERQUALITY
        ADDITIONALATTRIBUTENAME.5  = HORIZONTALTILENUMBER
        ADDITIONALATTRIBUTENAME.6  = VERTICALTILENUMBER
	ADDITIONALATTRIBUTENAME.7  = TileID

        *******************************************************
        * Other SCF defined PSA attributes:
        *******************************************************

        ADDITIONALATTRIBUTENAME.8  = NDAYS_COMPOSITED
        ADDITIONALATTRIBUTENAME.9  = QAPERCENTGOODFPAR
        ADDITIONALATTRIBUTENAME.10  = QAPERCENTGOODLAI
        ADDITIONALATTRIBUTENAME.11 = QAPERCENTMAINMETHOD
        ADDITIONALATTRIBUTENAME.12 = QAPERCENTEMPIRICALMODEL
        

    END_GROUP = AdditionalAttributes

    GROUP = AssociatedPlatformInstrumentSensor
        ASSOCIATEDPLATFORMSHORTNAME                STRING     1   "Terra/Aqua"
        ASSOCIATEDINSTRUMENTSHORTNAME              STRING     1   "MODIS"
        ASSOCIATEDSENSORSHORTNAME                  STRING     1   "MODIS"
    END_GROUP = AssociatedPlatformInstrumentSensor

  ENDGROUP = INVENTORYMETADATA

ProductMetadata.0

    This string will contain the following PVL fields:

                                                     #
        Field Name                        Data      of   Value
                                          Type     Values
                                                    
GROUP = ARCHIVEDMETADATA

    GROUP = BoundingRectangle
        NORTHBOUNDINGCOORDINATE           DOUBLE     1   Variable
        SOUTHBOUNDINGCOORDINATE           DOUBLE     1   Variable
        EASTBOUNDINGCOORDINATE            DOUBLE     1   Variable
        WESTBOUNDINGCOORDINATE            DOUBLE     1   Variable
    END_GROUP = BoundingRectangle


    ALGORITHMPACKAGEACCEPTANCEDATE        STRING     1   "10-01-2004"
    ALGORITHMPACKAGEMATURITYCODE          STRING     1   "Normal"
    ALGORITHMPACKAGENAME                  STRING     1   "MCDPR_15A2"
    ALGORITHMPACKAGEVERSION               STRING     1   "6"
    GEOANYABNORMAL                        STRING     1   Variable
    GEOESTMAXRMSERROR                     DOUBLE     1   Variable
    LONGNAME                              STRING     1   "MODIS/Terra+Aqua Leaf Area Index/FPAR 8-day L4 Global 500m SIN Grid"
	  
	 
    PROCESSINGCENTER                      STRING     1    "MODAPS"
    PROCESSINGENVIRONMENT                 STRING     1    "set by uname"
    DESCRREVISION                         STRING     1   Variable
    SYSTEMFILENAME                        STRING     1   Variable
    NUMBEROFGRANULES                      INTEGER    1   Variable
    GRANULEDAYNIGHTFLAG                   STRING   FR(A) Variable
    GRANULEBEGINNINGDATETIME              D/T      FR(A) Variable
    GRANULEENDINGDATETIME                 D/T      FR(A) Variable
    CHARACTERISTICBINANGULARSIZE          DOUBLE     1   Variable
    CHARACTERISTICBINSIZE                 DOUBLE     1   Variable
    DATACOLUMNS                           INTEGER    1   Variable
    DATAROWS                              INTEGER    1   Variable
    GLOBALGRIDCOLUMNS                     INTEGER    1   Variable
    GLOBALGRIDROWS                        INTEGER    1   Variable
    NADIRDATARESOLUTION                   STRING     1   "500m"
    MAXIMUMOBSERVATIONS			  INTEGER    1   Variable
    SPSOPARAMETERS			  STRING     2   "5367,2680"

ENDGROUP = ARCHIVEDMETADATA

StructuralMetadata.0
    This string will be populated automatically by HDF-EOS.

Grid Structure: MOD_Grid_MCD15A2H

    Data Fields:
	Fpar_500m, Lai_500m, FparLai_QC, FparExtra_QC, FparStdDev_500m, LaiStdDev_500m

    Private Global File Attributes:
    	Attribute Name		Attribute Type	 Maximum Length
        -------------------------------------------------------
    	UM_VERSION			  char8 (max 80 bytes)
	MOD15A1_ANC_BUILD_CERT            char8 (max 128 bytes)
	ENGINEERING_DATA		  char8 (max 32 Kbytes)

    Dimensions:

	Dimension       Dimension Name              Value
	
	Dimension_0     YDim:MOD_Grid_MCD15A2H         "DataRows"
	Dimension_1     XDim:MOD_Grid_MCD15A2H         "DataColumns"

    Corner Locations:

        Corner                Values

        UpperLeftPointMtrs    (Variable, Variable)

        LowerRightPointMtrs   (Variable, Variable)

    Geographic Grid Projection Parameters:
         Sinusoidal Projection
            Projection            GCTP_SNSOID
            ProjParam[0]          6371007.181
            ProjParam[1 to 7]     0.0
            ProjParam[8]          0.0
            ProjParam[9]          0.0
            ProjParam[10]         0.0
            ProjParam[11 to 12]   0.0
            Spherecode            -1
            GridOrigin            HDFE_CENTER
        

===========================================================================

Description of HDFEOS Gridfields
--------------------------------

Data Field_1
------------

	Data Field Name: Fpar_500m

	Description: Fraction of Photosynthetically Active Radiation, 500m resolution

    Type: HDF-uint8

	Dimensions:

		Dimension Name		Value

		YDim			DataRows
		XDim			DataColumns
	
	HDF Attributes:
                                  Number of
                                  Values or
                                    Max.
        Attribute        Data      String    Value
                         Type      Length

        long_name        STRING      34      "MCD15A2H MODIS/Terra+Aqua Gridded 500m FPAR (8-day composite)"						
        units            STRING      8       "Percent"
        valid_range      UINT8       2       0   100
        _FillValue       UINT8       1       255 (see other fill-value definitions below)
        scale_factor     FLOAT64     1       0.01
        add_offset       FLOAT64     1       0.0
        scale_factor_err FLOAT64     1       0.0
        add_offset_err   FLOAT64     1       0.0
        calibrated_nt    INT32       1       21     

===========================================
 NEW NON-TERRESTRIAL FILL-VALUE ASSIGNMENTS
===========================================

       255 = _Fillvalue: This is assigned when:
             * the MOD09GA surf reflectance for channel VIS,NIR
               was assigned its _Fillvalue, or 
             * land cover pixel itself was assigned _Fillvalue 255, or 254.
       254 = land cover assigned as perennial salt or inland fresh Water
       253 = land cover assigned as barren,sparse veg (rock,tundra,desert)
       252 = land cover assigned as perennial snow,ice.
       251 = land cover assigned as "permanent" wetlands/inundated marshland
       250 = land cover assigned as urban/built-up
       249 = land cover assigned as "unclassified" or (not able to determine)


Data (HDF NCSA style) conversions (to and from digital to analytical):
          Fpar_500m     = scale_factor * (file data - add_offset)
          file data    = (Fpar_500m / scale_factor) + add_offset


Data Field_2
------------

	Data Field Name: Lai_500m

	Description: Leaf Area Index (LAI),
                     one sided (m^2 plant per m^2 of ground), at 500m resolution

    Type: HDF-uint8

	Dimensions:

		Dimension Name		Value

		YDim			DataRows
		XDim			DataColumns
	
	HDF Attributes:
                                  Number of
                                  Values or
                                    Max.
        Attribute        Data      String    Value
                         Type      Length

        long_name        STRING      55     "MCD15A2H MODIS/Terra+Aqua Gridded 500m Leaf Area Index (8-day composite)"
        units            STRING      8       "m^2/m^2"
        valid_range      UINT8       2       0 100
        _FillValue       UINT8       1       255 (see other fill-value definitions below)
        scale_factor     FLOAT64     1       0.10
        add_offset       FLOAT64     1       0.0
        scale_factor_err FLOAT64     1       0.0
        add_offset_err   FLOAT64     1       0.0
        calibrated_nt    INT32       1       21     

===========================================
 NEW NON-TERRESTRIAL FILL-VALUE ASSIGNMENTS
===========================================

       255 = _Fillvalue: This is assigned when:
             * the MOD09GA surf reflectance for channel VIS,NIR
               was assigned its _Fillvalue, or 
             * land cover pixel itself was assigned _Fillvalue 255, or 254.
       254 = land cover assigned as perennial salt or inland fresh Water
       253 = land cover assigned as barren,sparse veg (rock,tundra,desert)
       252 = land cover assigned as perennial snow,ice.
       251 = land cover assigned as "permanent" wetlands/inundated marshland
       250 = land cover assigned as urban/built-up
       249 = land cover assigned as "unclassified" or (not able to determine)?

Data (HDF NCSA style) conversions (to and from digital to analytical):
          Lai_500m      = scale_factor * (file data - add_offset)
          file data    = (Lai_500m / scale_factor) + add_offset


Data Field_3
------------
(NOTE: IMPORTANT CHANGE IN VERSION 5.0.0 and up - Added SENSOR bit and MODLAND_QC is rediced to 1 bit as per request from LDOPE)

  Data Field Name: FparLai_QC
  
  Description: QC (quality control) flags for BOTH the Fpar_500m and Lai_500m
               biophysical variables.


  BITS BITFIELD
  -------------
  0,0  MODLAND_QC bits
       '0' =  Good Quality (main algorithm with or without saturation)
       '1' =  Other Quality (back-up algorithm or fill values)

  1,1 SENSOR
       '0' = Terra
       '1' = Aqua
       
  2,2  DEADDETECTOR 
       '0' = Detectors apparently fine for up to 50% of channels 1,2
       '1' = Dead detectors caused >50% adjacent detector retrieval

  3,4  CLOUDSTATE (this inherited from Aggregate_QC bits {0,1} cloud state)
       '00' = 0 Significant clouds NOT present (clear)
       '01' = 1 Significant clouds WERE present
       '10' = 2 Mixed cloud present on pixel
       '11' = 3 Cloud state not defined,assumed clear

  5,7  SCF_QC (3-bit, (range '000'..100') 5 level Confidence Quality score. 
       '000' = 0, Main (RT) method used, best result possible (no saturation)
       '001' = 1, Main (RT) method used with saturation. Good,very usable
       '010' = 2, Main (RT) method failed due to bad geometry, empirical algorithm used
       '011' = 3, Main (RT) method failed due to problems other than geometry, empirical algorithm used
       '100' = 4, Pixel not produced at all, value coudn't be retrieved (possible reasons: bad L1B data, unusable MOD09GA data) 

    Type: HDF-uint8

	Dimensions:

		Dimension Name		Value

		YDim			DataRows
		XDim			DataColumns
	

	HDF Attributes:
                                  Number of
                                  Values or
                                    Max.
        Attribute        Data      String    Value
                         Type      Length

        long_name        STRING      25      "MCD15A2H MODIS/Terra+Aqua QC for FPAR and LAI (8-day composite)"
        units            STRING      14      "class-flag"
        valid_range      UINT8       2       0 254
        _FillValue       UINT8       1       255


Data Field_4
------------
  (NOTE: change in bit 7 in version 4.0.4 and up )

  Data Field Name: FparExtra_QC

  Description: Extra-detail QC (quality control) flags for both
               Fpar_500m and Lai_500m biophysical variables.

  BITS BITFIELD
  -------------
  0,1 LANDSEA PASS-THRU
       '00' = 0 LAND       AggrQC(3,5)values{001}
       '01' = 1 SHORE      AggrQC(3,5)values{000,010,100}
       '10' = 2 FRESHWATER AggrQC(3,5)values{011,101}
       '11' = 3 OCEAN      AggrQC(3,5)values{110,111}
  2,2  SNOW_ICE (from Aggregate_QC bits)
       '0' = No snow/ice detected
       '1' = Snow/ice were detected
  3,3  AEROSOL
       '0' = No or low atmospheric aerosol levels detected
       '1' = Average or high aerosol levels detected
  4,4  CIRRUS (from Aggregate_QC bits {8,9} )
       '0' = No cirrus detected 
       '1' = Cirrus was detected
  5,5  INTERNAL_CLOUDMASK
       '0' = No clouds
       '1' = Clouds were detected
  6,6  CLOUD_SHADOW
       '0' = No cloud shadow detected
       '1' = Cloud shadow detected
  7,7  SCF_BIOME_MASK - used to figure out biome interval
	'0' = Biome outside interval <1,4>
	'1' = Biome in interval <1,4> 
       


    Type: HDF-uint8

	Dimensions:

		Dimension Name		Value

		YDim			DataRows
		XDim			DataColumns
	

	HDF Attributes:
                                  Number of
                                  Values or
                                    Max.
        Attribute        Data      String    Value
                         Type      Length

        long_name        STRING      41      "MCD15A2H MODIS/Terra+Aqua pass-through QC for FPAR and LAI (8-day composite)"
        units            STRING      14      "class-flag"
        valid_range      UINT8       2       0 254
        _FillValue       UINT8       1       255



Data Field_5
------------

        Data Field Name: FparStdDev_500m

        Description: Standard deviation of Fraction of Photosynthetically Active Radiation, 500m resolution

    Type: HDF-uint8

        Dimensions:

                Dimension Name          Value

                YDim                    DataRows
                XDim                    DataColumns

        HDF Attributes:
                                  Number of
                                  Values or
                                    Max.
        Attribute        Data      String    Value
                         Type      Length

        long_name        STRING      34      "MCD15A2H MODIS/Terra+Aqua Gridded 500m Standard Deviation FPAR (8-day composite)"
        units            STRING      8       "Percent"
        valid_range      UINT8       2       0   100
        _FillValue       UINT8       1       255 (see other fill-value definitions below)
        scale_factor     FLOAT64     1       0.01
        add_offset       FLOAT64     1       0.0
        scale_factor_err FLOAT64     1       0.0
        add_offset_err   FLOAT64     1       0.0
        calibrated_nt    INT32       1       21

===========================================
 NON-TERRESTRIAL AND FILL-VALUE ASSIGNMENTS
===========================================

       255 = _Fillvalue: This is assigned when:
             * the MOD09GA surf reflectance for channel VIS,NIR
               was assigned its _Fillvalue, or
             * land cover pixel itself was assigned _Fillvalue 255, or 254.
       254 = land cover assigned as perennial salt or inland fresh Water
       253 = land cover assigned as barren,sparse veg (rock,tundra,desert)
       252 = land cover assigned as perennial snow,ice.
       251 = land cover assigned as "permanent" wetlands/inundated marshland
       250 = land cover assigned as urban/built-up
       249 = land cover assigned as "unclassified" or (not able to determine)
       248 = no standard deviation available, pixel produced using backup method

Data (HDF NCSA style) conversions (to and from digital to analytical):
          FparStdDev_500m     = scale_factor * (file data - add_offset)
          file data          = (FparStdDev_500m / scale_factor) + add_offset



Data Field_6
------------

        Data Field Name: LaiStdDev_500m

        Description: Standar deviation of Leaf Area Index (LAI),
                     one sided (m^2 plant per m^2 of ground), at 500m resolution

    Type: HDF-uint8

        Dimensions:

                Dimension Name          Value

                YDim                    DataRows
                XDim                    DataColumns

        HDF Attributes:
                                  Number of
                                  Values or
                                    Max.
        Attribute        Data      String    Value
                         Type      Length

        long_name        STRING      55     "MCD15A2H MODIS/Terra+Aqua Gridded 500m Standard Deviation Leaf Area Index"
        units            STRING      8       "m^2/m^2"
        valid_range      UINT8       2       0 100
        _FillValue       UINT8       1       255 (see other fill-value definitions below)
        scale_factor     FLOAT64     1       0.10
        add_offset       FLOAT64     1       0.0
        scale_factor_err FLOAT64     1       0.0
        add_offset_err   FLOAT64     1       0.0
        calibrated_nt    INT32       1       21

===========================================
 NON-TERRESTRIAL AND FILL-VALUE ASSIGNMENTS
===========================================

       255 = _Fillvalue: This is assigned when:
             * the MOD09GA surf reflectance for channel VIS,NIR
               was assigned its _Fillvalue, or
             * land cover pixel itself was assigned _Fillvalue 255, or 254.
       254 = land cover assigned as perennial salt or inland fresh Water
       253 = land cover assigned as barren,sparse veg (rock,tundra,desert)
       252 = land cover assigned as perennial snow,ice.
       251 = land cover assigned as "permanent" wetlands/inundated marshland
       250 = land cover assigned as urban/built-up
       249 = land cover assigned as "unclassified" or (not able to determine)
       248 = no standard deviation available, pixel produced using backup method

Data (HDF NCSA style) conversions (to and from digital to analytical):
          LaiStdDev_500m     = scale_factor * (file data - add_offset)
          file data          = (LaiStdDev_500m / scale_factor) + add_offset




PGE34 Product File Global File Attributes (NOT searchable metadata)
-------------------------------------------------------------------

Attribute Name:		UM_VERSION

Description:		Contains current version of the source code, ancillary files
			and product files. This is done to help assure that the executable
                        is run with a compatible ancillary file, and to provide a single
                        comprehensive versioning stamp common to our executables, product
                        files and ancillary files.
			

Attribute Name:		ENGINEERING_DATA

Description:		This text attribute contains a development log of various internal
                        session metrics.  The attribute "ENGINEERING_DATA" is created for
                        all runs, but is only populated if the LCMP_PCF_ENGDATA runtime switch
                        is set to "1" in the PCF file. If the LCMP_PCF_ENGDATA switch is set to
                        "0", the contents of the attribute is "(none-available)".
                        It's purpose is to more effectively enable post-processing
                        quality control at the SCF, when there is access to just the HDFEOS product
                        files and not the original ECS session logs.



=========================================================================================
NEW PGE34 OPTIONAL BROWSE FILE GENERATION
=========================================================================================

--Note that PGE34 now optionally produces a 5km BROWSE (or COARSE) product for each data layer,
  triggered by the .pcf file runtime input, LCMP_PCF_BROWSE, as a stand alone
  HDFEOS file. The adjusted gridfield names are each 240x240 pixels and are named: 
    Fpar_5km, 
    Lai_5km, 
    FparLai_5kmQC,
    FparExtra_5kmQC


--The BROWSE generation feature is intended for use in MODAPS, and is NOT intended for 
  routine use within the ECS Production System, as the HDF product files generated 
  are currently not registered ESDTs.

--The separate BROWSE COARSE product file, when produced,  itis named after the PGE34 OUTPUT PRODUCT 
  file as shown below:
   PRODUCT FILE : MCD15A2H.A2000265.h18v04.005.2000288143421.hdf
   BROWSE  FILE : MCD15A2HC.A2000265.h18v04.005.2000288143421.hdf

--The default BROWSE PCF runtime input for ECS, to suppress BROWSE generation, is:
  215050|LCMP_PCF_BROWSE|0

--If for a given tile, the .PCF file contains a runtime input LCMP_PCF_BROWSE that is
  set to a syntactically valid specification string, PGE34 will optionally produce 
  a separate HDFEOS file containing (4) gridfields, one per standard SDS. 
  
--The valid BROWSE specification string is a comma-delimited list of (3) arguments,
  with the following:

  LCMP_PCF_BROWSE|[{ew_stride},{ns_stride},{HDFEOS|HDF}
   where:
    ew_stride --the systematic skip-factor along the East-West axis
    ns_stride --the systematic skip-factor along the North-South axis
    fileType  --HDFEOS indicates a HDFEOS file should be made, or HDF for simple HDF.


   The BROWSE COARSE file layout is shown here:

	byte Fpar_5km(YDim:MCD_Grid_MOD15A2H_Browse5km, XDim:MCD_Grid_MOD15A2H_Browse5km) ;
                Fpar_5km:scale_factor = 0.01 ;
                Fpar_5km:scale_factor_err = 0. ;
                Fpar_5km:add_offset = 0. ;
                Fpar_5km:add_offset_err = 0. ;
                Fpar_5km:calibrated_nt = 21 ;
                Fpar_5km:valid_range = 0,100 ;
                Fpar_5km:_FillValue = 255 ;
                Fpar_5km:long_name = "MCD15A2HC MODIS/Terra+Aqua BROWSE Gridded 5KM FPAR" ;
                Fpar_5km:units = "(Percent)" ;
	byte Lai_5km(YDim:MCD_Grid_MOD15A2H_Browse5km, XDim:MCD_Grid_MOD15A2H_Browse5km) ;
                Lai_5km:scale_factor = 0.1 ;
                Lai_5km:scale_factor_err = 0. ;
                Lai_5km:add_offset = 0. ;
                Lai_5km:add_offset_err = 0. ;
                Lai_5km:calibrated_nt = 21 ;
                Lai_5km:valid_range = 0, 100 ;
                Lai_5km:_FillValue = 255 ;
                Lai_5km:long_name = "MCD15A2HC MODIS/Terra+Aqua BROWSE Gridded 5KM Leaf Area Index LAI" ;
                Lai_5km:units = "(m^2/m^2)" ;
	byte FparLai_5kmQC(YDim:MCD_Grid_MOD15A2H_Browse5km, XDim:MCD_Grid_MOD15A2H_Browse5km) ;
                FparLai_5kmQC:valid_range = 0, 254 ;
                FparLai_5kmQC:_FillValue = 255 ;
                FparLai_5kmQC:long_name = "MCD15A2HC MODIS/Terra+Aqua BROWSE of QC for 8-day 5KM FPAR and LAI" ;
                FparLai_5kmQC:units = "(class-flag)" ;
	byte FparExtra_5kmQC(YDim:MCD_Grid_MOD15A2H_Browse5km, XDim:MCD_Grid_MOD15A2H_Browse5km) ;
                FparExtra_5kmQC:valid_range = 0, 254 ;
                FparExtra_5kmQC:_FillValue = 255 ;
                FparExtra_5kmQC:long_name = "BROWSE of MCD15A2H MODIS/Terra+Aqua pass-through QC for 5KM FPAR and LAI" ;
                FparExtra_5kmQC:units = "(class-flag)" ;
  

    Global file attributes: "UM_VERSION", char8
    
    UM_VERSION = "U.MONTANA MODIS PGE34 Vers 5.0.0 Rev 4 Release 10.01.2004 23:59"

Last updated: October 24, 2019