MOD10CM Product File Specification
Version: 6.0.0
Revision: 0
Date: 21 December 2015
Product ID: MOD10
Process: MOD_PR10CM
PGE: ??
ESDT: MOD10CM
Product name: MODIS/Terra Snow Monthly L3 Global 0.05Deg CMG
Product Level: 3
Point of Contact: George Riggs
SSAI
NASA, GSFC, Code 971
Greenbelt, MD 20771
301-286-6811
George.A.Riggs.1@gsfc.nasa.gov
Principal Investigator: Vincent V. Salomonson
NASA, GSFC, Code 900
Greenbelt, MD 20771
301-614-5631
Vincent.V.Salomonson@nasa.gov
Associate Investigator: Dorothy K. Hall
NASA, GSFC, Code 971
Greenbelt, MD 20771
301-614-5771
Dorothy.K.Hall@nasa.gov
Description:
Specification description of the MOD10CM monthly snow product at
0.05 deg resolution. A listing of the ECS global metadata is given.
Descriptions of the SDSs are given including local attributes,
dimensions, and content of the SDSs. Also listed are HDF global
attributes in the product.
The level 3 monthly snow product is archived in HDF-EOS format and
consists of 5 global attributes and 2 SDSs with local attributes.
Product is in the HDF-EOS geographic projection with a cell resolution
of 0.05 degrees (approximately 5.55 km at equator).
Contents:
SDS name:
Snow_Cover_Monthly_CMG
Snow_Spatial_QA
Global Metadata:
CoreMetadata.0
ArchiveMetadata.0
StructMetadata.0
HDFEOSVersion
InputFileNames
Name: Type: Num_Val:Source: Value:
CoreMetadata.0 PVL-STRING TK
LocalGranuleID STRING 1 PGE Variable
SizeMBECSDataGranule DOUBLE 1 DSS Variable
ProductionDateTime DATETIME1 TK Variable
DayNightFlag STRING 1 PGE Variable
ReprocessingActual STRING 1 PGE Variable
LocalVersionID STRING 1 PGE Variable
ReprocessingPlanned STRING 1 PGE Variable
ScienceQualityFlag STRING 1 DP "Not Investigated"
AutomaticQualityFlagExplanation STRING 1 PGE Variable
AutomaticQualityFlag STRING 1 PGE Variable
OperationalQualityFlagExplanation
STRING 1 PGE Variable
OperationalQualityFlag STRING 1 PGE Variable
ScienceQualityFlagExplanation STRING 1 DP Variable
QAPercentMissingData INTEGER 1 PGE 0-100
QAPercentCloudCover INTEGER 1 PGE 0-100
ParameterName STRING 3 PGE "Monthly Global Snow Cover"
VersionID INTEGER 1 MCF Variable
ShortName STRING 1 MCF "MOD10CM"
InputPointer STRING 31 PGE Variable
EastBoundingCoordinate DOUBLE 1 PGE 180.000000
WestBoundingCoordinate DOUBLE 1 PGE -180.000000
SouthBoundingCoordinate DOUBLE 1 PGE -90.00000
NorthBoundingCoordinate DOUBLE 1 PGE 90.000000
ZoneIdentifier STRING 1 PGE "Other Grid System"
RangeEndingDate DATE 1 PGE Variable
RangeEndingTime TIME 1 PGE Variable
RangeBeginningDate DATE 1 PGE Variable
RangeBeginningTime TIME 1 PGE Variable
PGEVersion STRING 1 PGE Variable
AdditionalAttributeName.1 STRING 1 PGE QAPERCENTGOODQUALITY
ParameterValue.1 STRING 1 PGE 0-100
AdditionalAttributeName.2 STRING 1 PGE QAPERCENTOTHERQUALITY
ParameterValue.2 STRING 1 PGE 0-100
AdditionalAttributeName.3 STRING 1 PGE SNOWCOVERPERCENT
ParameterValue.3 STRING 1 PGE 0-100
AssociatedSensorShortName STRING 1 MCF "MODIS"
AssociatedPlatformShortName STRING 1 MCF "Terra"
AssociatedInstrumentShortname STRING 1 MCF "MODIS"
End CoreMetadata.0 _________________________________
Name: Type: Num_Val: Source: Value:
ArchiveMetadata.0 PVL-STRING 1 TK Variable
AlgorithmPackageAcceptanceDate STRING 1 PGE Variable
AlgorithmPackageMaturityCode STRING 1 PGE Variable
AlgorithmPackageName STRING 1 PGE "MOD_PR10CM"
AlgorithmPackageVersion STRING 1 PGE Variable
LongName STRING 1 MCF "MODIS/Terra Snow Cover Monthly L3 Global 0.05Deg CMG"
InstrumentName STRING 1 MCF "Moderate Resolution Imaging Spectroradiometer"
PlatformShortName STRING 1 MCF "Terra"
GlobalGridColumns INTEGER 1 PGE 7200
GlobalGridRows INTEGER 1 PGE 3600
ProcessingCenter STRING 1 MCF "MODAPS"
ProcessingDateTime DATETIME 1 PGE Variable
SPSOParameters STRING 1 PGE "none"
DESCRevision STRING 1 MCF Variable
ProductionHistory STRING 1 PGE Variable
ProcesssingEnvironment STRING 1 PGE Variable
End ArchiveMetadata.0 _________________________________
StructMetadata.0 PVL-STRING 1 HDFEOSTK Variable
GROUP=SwathStructure
END_GROUP=SwathStructure
GROUP=GridStructure
GROUP=GRID_1
GridName="MOD_CMG_Snow_5km"
XDim=7200
YDim=3600
UpperLeftPointMtrs=(-180000000.000000,90000000.000000)
LowerRightMtrs=(180000000.000000,-90000000.000000)
Projection=GCTP_GEO
GridOrigin=HDFE_GD_UL
GROUP=Dimension
END_GROUP=Dimension
GROUP=DataField
OBJECT=DataField_1
DataFieldName="Snow_Cover_Monthly_CMG"
DataType=DFNT_UINT8
DimList=("YDim","XDim")
CompressionType=HDFE_COMP_DEFLATE
DeflateLevel=9
END_OBJECT=DataField_1
OBJECT=DataField_2
DataFieldName="Snow_Spatial_QA"
DataType=DFNT_UINT8
DimList=("YDim","XDim")
CompressionType=HDFE_COMP_DEFLATE
DeflateLevel=9
END_OBJECT=DataField_2
END_GROUP=DataField
GROUP=MergedFields
END_GROUP=MergedFields
END_GROUP=GRID_1
END_GROUP=GridStructure
GROUP=PointStructure
END_GROUP=PointStructure
END
Other Global Attributes:
Name: Type: Num_Val:Source: Value:
HDFEOSVersion DFNT_CHAR 1 PGE Variable
InputFileNames DFNT_CHAR8 31 PGE Variable
End Other Global Attributes --------------------------
===============================================================================
SDS Definition
SDS Name: Snow_Cover_Monthly_CMG
Description:
This SDS provides a monthly global view of snow at 0.05 x 0.05
degree resolution.
Interpretation of data; See Snow Products User Guide http://modis-snow-ice.gsfc.nasa.gov
Number Type: DFNT_UINT8
Rank: 2
Dimension sizes:(Xdim, Ydim)
SDS attributes:
Name: Type: Num_val: Source: Value:
long_name DFNT_CHAR 1 PGE "Monthly snow cover extent, 5km"
units DFNT_CHAR 1 PGE "none"
format DFNT_CHAR 1 PGE "I3"
coordsys DFNT_CHAR 1 PGE "latitude, longitude"
valid_range DFNT_UINT8 2 PGE 0, 100
_FillValue DFNT_UNIT8 1 PGE 255
Mask_Value DFNT_UNIT8 1 PGE 254
Night_Value DFNT_UINT8 1 PGE 211
Cell_resolution DFNT_CHAR 1 PGE 0.05 deg
Antarctica_snow_note DFNT_CHAR 1 PGE " Antarctica deliberately mapped as snow"
Key DFNT_CHAR8 1 PGE "0-100=percent snow in cell, 211=night, 250=cloud, 253=no decision, 254=water mask, 255=fill"
===============================================================================
SDS Definition
SDS Name: Snow_Spatial_QA
Description:
This SDS provides a monthly global view of snow at 0.05 x 0.05
degree resolution.
Interpretation of data; See Snow Products User Guide http://modis-snow-ice.gsfc.nasa.gov
Number Type: DFNT_UINT8
Rank: 2
Dimension sizes:(Xdim, Ydim)
SDS attributes:
Name: Type: Num_val: Source: Value:
long_name DFNT_CHAR 1 PGE "Thematic QA map of the monthly snow"
units DFNT_CHAR 1 PGE "none"
format DFNT_CHAR 1 PGE "I3"
coordsys DFNT_CHAR 1 PGE "latitude, longitude"
valid_range DFNT_UINT8 2 PGE 0, 1
_FillValue DFNT_UNIT8 1 PGE 255
Cell_resolution DFNT_CHAR 1 PGE 0.05 deg
Antarctica_snow_note DFNT_CHAR 1 PGE " Antarctica deliberately mapped as snow"
Key DFNT_CHAR8 1 PGE "0=other quality, 1=good quality, 252=Antarctica mask, 254=water mask, 255=fill"
===============================================================================