MOD29E1D Product File Specification
Version: V6.0.0
Revision: 0
Date: 3 January 2005
ESDT: MOD29E1D
Name: MODIS/Terra Sea Ice Extent and IST Daily L3 Global 4km EASE-Grid Day
Level: 3
Process ID: MOD_PR29E1
Point of Contact: George Riggs
SSAI
NASA, GSFC, Code 971
Greenbelt, MD 20771
301-614-5650
George.A.Riggs.1@gsfc.nasa.gov
Nicolo E. DiGirolamo
SSAI
NASA GSFC Code 971
Greenbelt, MD 20771
301 614-5824
Nicolo.E.DiGirolamo.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:
This specification description of the MOD29E1D daily global sea ice
and ice surface temperature (IST) data product serves as a guide to
the contents of the data product. A general description of the global
metadata is given. Specific details of the global metadata are found
in the Metadata Configuration File (MCF). Descriptions of the SDS
structures are given along with a listing of the local attributes and
description of the content of a SDS.
The sea ice product is archived in HDF-EOS format and consists of 4
global metadata strings and 4 SDSs with local attributes. The product
is in EASE-Grid projection. Projections of the North Pole and the
South Pole are in the product. For each polar projection there are
SDSs of sea ice extent and IST. Spatial resolution of is approximately
4 km. The product is generated using MOD29P1D products (tiles)
as input.
Contents:
SDSs in the product:
Sea_Ice_by_Reflectance_NP
Ice_Surface_Temperature_NP
Sea_Ice_by_Reflectance_SP
Ice_Surface_Temperature_SP
Global Metadata names:
CoreMetadata.0
ArchiveMetadata.0
StructMetadata.0
HDFEOSVersion
*Start Global Attributes ===================================================
Name: Type: Num_Val: Source: Value:
CoreMetadata.0 PVL-STRING
1 TK Variable
LocalGranuleID STRING 1 PGE Variable
SizeMBECSDataGranule DOUBLE 1 DSS Variable
ProductionDateTime STRING 1 TK Variable
DayNightFlag STRING 1 PGE Variable
ReprocessingActual STRING 1 PGE Variable
LocalVersionID STRING 1 PGE "SCF V5.0.0"
ReprocessingPlanned STRING 1 PGE Variable
ScienceQualityFlag STRING M DP Variable
AutomaticQualityFlagExplanation
STRING M PGE "No automatic quality assessment done in the PGE."
AutomaticQualityFlag STRING M PGE "Passed"
OperationalQualityFlag STRING M PGE Variable
OperationalQualityFlagExplanation
STRING M PGE Variable
ScienceQualityFlagExplanation
STRING M DP "See http://landweb.nascom.nasa.gov/cgi-bin/QA_WWW/qaFlagPage.cgi?sat=terra for the product Science Quality status"
QAPercentMissingData INTEGER M PGE Variable
QAPercentCloudCover INTEGER M PGE Variable
ParameterName STRING M PGE "Sea_Ice_by_Reflectance_NP", "Ice_Surface_Temperature_NP", "Sea_Ice_by_Reflectance_SP", "Ice_Surface_Temperature_SP"
VersionID INTEGER 1 MCF Variable
ShortName STRING 1 MCF "MOD29E1D"
InputPointer STRING M PGE Variable
EastBoundingCoordinate DOUBLE 1 PGE Variable
WestBoundingCoordinate DOUBLE 1 PGE Variable
SouthBoundingCoordinate DOUBLE 1 PGE Variable
NorthBoundingCoordinate DOUBLE 1 PGE Variable
ZoneIdentifier STRING 1
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
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
CharacteristicBinAngularSize DOUBLE 1 PGE 287.936014219062
CharacteristicBinSize DOUBLE 1 PGE 4.01080400e+03
GlobalGridColumns INTEGER 1 PGE 4501
GlobalGridRows INTEGER 1 PGE 4501
NumberOfInputGranules INTEGER 1 PGE Variable
AlgorithmPackageAcceptanceDate STRING 1 PGE Variable
AlgorithmPackageMaturityCode STRING 1 PGE Variable
AlgorithmPackageName STRING 1 PGE
"MOD29E1 global daily sea ice"
AlgorithmPackageVersion STRING 1 PGE Variable
LongName STRING 1 MCF
"MODIS/Terra Sea Ice Extent and IST Daily L3 Global 4km EASE-Grid Day"
InstrumentName STRING 1 MCF
"Moderate Resolution Imaging Spectroradiometer"
PlatformShortName STRING 1 MCF "Terra"
ProcessingCenter STRING 1 MCF "MODAPS"
ProcessingDateTime DATETIME1 PGE Variable
SPSOParameters STRING 1 PGE "none"
DESCRREVISION STRING 1 MCF Variable
PROCESSINGENVIRONMENT STRING 1 PGE Variable
End ArchiveMetadata.0 _________________________________
StructMetadata.0 DFNT_CHAR8 PGE
StructMetadata.0 DFNT_CHAR8 32000 GROUP=SwathStructure
END_GROUP=SwathStructure
GROUP=GridStructure
GROUP=GRID_1
GridName="MOD_Grid_Seaice_4km_North"
XDim=4501
YDim=4501
UpperLeftPointMtrs=(-9026314.402000,9026314.402000)
LowerRightMtrs=(9026314.402000,-9026314.402000)
Projection=GCTP_LAMAZ
ProjParams=(6371228,0,0,0,0,90000000,0,0,0,0,0,0,0)
SphereCode=0
GridOrigin=HDFE_GD_UL
GROUP=Dimension
END_GROUP=Dimension
GROUP=DataField
OBJECT=DataField_1
DataFieldName="Sea_Ice_by_Reflectance_NP"
DataType=DFNT_UINT8
DimList=("XDim","YDim")
CompressionType=HDFE_COMP_DEFLATE
DeflateLevel=9
END_OBJECT=DataField_1
OBJECT=DataField_2
DataFieldName="Ice_Surface_Temperature_NP"
DataType=DFNT_UINT16
DimList=("XDim","YDim")
CompressionType=HDFE_COMP_DEFLATE
DeflateLevel=9
END_OBJECT=DataField_2
END_GROUP=DataField
GROUP=MergedFields
END_GROUP=MergedFields
END_GROUP=GRID_1
GROUP=GRID_2
GridName="MOD_Grid_Seaice_4km_South"
XDim=4501
YDim=4501
UpperLeftPointMtrs=(-9026314.402000,9026314.402000)
LowerRightMtrs=(9026314.402000,-9026314.402000)
Projection=GCTP_LAMAZ
ProjParams=(6371228,0,0,0,0,-90000000,0,0,0,0,0,0,0)
SphereCode=0
GridOrigin=HDFE_GD_UL
GROUP=Dimension
END_GROUP=Dimension
GROUP=DataField
OBJECT=DataField_1
DataFieldName="Sea_Ice_by_Reflectance_SP"
DataType=DFNT_UINT8
DimList=("XDim","YDim")
CompressionType=HDFE_COMP_DEFLATE
DeflateLevel=9
END_OBJECT=DataField_1
OBJECT=DataField_2
DataFieldName="Ice_Surface_Temperature_SP"
DataType=DFNT_UINT16
DimList=("XDim","YDim")
CompressionType=HDFE_COMP_DEFLATE
DeflateLevel=9
END_OBJECT=DataField_2
END_GROUP=DataField
GROUP=MergedFields
END_GROUP=MergedFields
END_GROUP=GRID_2
END_GROUP=GridStructure
GROUP=PointStructure
END_GROUP=PointStructure
END
End StructMetadta.0 -----------------------------------
HDFEOSVersion DFNT_CHAR string length PGE Variable
*End Global Attributes
===============================================================================
SDS Definition
SDS Name: Sea_Ice_by_Reflectance_NP
Description: Sea ice as identified by reflective characteristics, 4km resolution.
Number Type: "DFNT_UINT8"
Rank: 2
Dimension sizes:(YDim, XDim)
Dimension Names:
Dimension0: "YDim"
Dimension1: "XDim"
SDS Local Attributes:
Name: Type: Num_Val: Source: Value:
HDF Predefined Attributes
by Reserved Label name_____
long_name DFNT_CHAR string length PGE "Sea ice by reflectance 4 km global North Pole grid"
units DFNT_CHAR8 string length PGE "none"
coordsys DFNT_CHAR8 string length PGE "cartesian"
valid_range DFNT_UINT8 2 PGE 0,254
_FillValue DFNT_UNIT8 1 PGE 255
Custom Attributes____
missing_value DFNT_INT8 1 PGE 0
Key DFNT_CHAR8 string length PGE "0=missing data, 1=no
decision, 11=night, 25=land, 37=inland water, 39=ocean, 50=cloud,
200=sea ice, 253=no input tile expected, 254=non-production mask"
===============================================================================
SDS Definition
SDS Name: Ice_Surface_Temperature_NP
Description: Ice surface temperature (K), 4km resolution.
Number Type: "DFNT_UINT16"
Rank: 2
Dimension sizes:(YDim, XDim)
Dimension Names:
Dimension0: "YDim"
Dimension1: "XDim"
SDS Local Attributes:
Name: Type: Num_Val: Source: Value:
HDF Predefined Attributes
by Reserved Label name_____
long_name DFNT_CHAR string length PGE "Estimated sea ice surface temperature 4 km North Pole grid"
units DFNT_CHAR8 string length PGE "degree_Kelvin"
format DFNT_CHAR string length PGE "f4.1"
coordsys DFNT_CHAR8 string length PGE "cartesian"
valid_range DFNT_UINT8 2 PGE 22320, 31320
_FillValue DFNT_UNIT8 1 PGE 7
CALIBRATION DATA for Ice_Surface_Temperature_NP
scale_factor 0.0100000000000000
scale_factor_error 0.0000000000000000
add_offset 0.0000000000000000
add_offset_error 0.0000000000000000
calibrated_nt 23
Custom Attributes____
missing_value DFNT_INT8 1 PGE 0
Key DFNT_CHAR8 string length PGE "0.0=missing data,
1.0=no decision, 5.0=non-production mask, 7.0=tile fill, 8.0=no input
tile expected, 25.0=land, 37.0=inland water, 50.0=cloud"
===============================================================================
SDS Definition
SDS Name: Sea_Ice_by_Reflectance_SP
Description: Sea ice as identified by reflective characteristics, 4km resolution.
Number Type: "DFNT_UINT8"
Rank: 2
Dimension sizes:(YDim, XDim)
Dimension Names:
Dimension0: "YDim"
Dimension1: "XDim"
SDS Local Attributes:
Name: Type: Num_Val: Source: Value:
HDF Predefined Attributes
by Reserved Label name_____
long_name DFNT_CHAR string length PGE "Sea ice by reflectance 4 km global South Pole grid"
units DFNT_CHAR8 string length PGE "none"
coordsys DFNT_CHAR8 string length PGE "cartesian"
valid_range DFNT_UINT8 2 PGE 0,254
_FillValue DFNT_UNIT8 1 PGE 255
Custom Attributes____
missing_value DFNT_INT8 1 PGE 0
Key DFNT_CHAR8 string length PGE "0=missing data, 1=no
decision, 11=night, 25=land, 37=inland water, 39=ocean, 50=cloud,
200=sea ice, 253=no input tile expected, 254=non-production mask"
===============================================================================
SDS Definition
SDS Name: Ice_Surface_Temperature_SP
Description: Ice surface temperature (K), 4km resolution.
Number Type: "DFNT_UINT16"
Rank: 2
Dimension sizes:(YDim, XDim)
Dimension Names:
Dimension0: "YDim"
Dimension1: "XDim"
SDS Local Attributes:
Name: Type: Num_Val: Source: Value:
HDF Predefined Attributes
by Reserved Label name_____
long_name DFNT_CHAR string length PGE "Estimated sea ice surface temperature 4 km South Pole grid"
units DFNT_CHAR8 string length PGE "degree_Kelvin"
format DFNT_CHAR string length PGE "f4.1"
coordsys DFNT_CHAR8 string length PGE "cartesian"
valid_range DFNT_UINT8 2 PGE 22320, 31320
_FillValue DFNT_UNIT8 1 PGE 7
CALIBRATION DATA for Ice_Surface_Temperature_NP
scale_factor 0.0100000000000000
scale_factor_error 0.0000000000000000
add_offset 0.0000000000000000
add_offset_error 0.0000000000000000
calibrated_nt 23
Custom Attributes____
missing_value DFNT_INT8 1 PGE 0
Key DFNT_CHAR8 string length PGE "0.0=missing data,
1.0=no decision, 5.0=non-production mask, 7.0=tile fill, 8.0=no input
tile expected, 25.0=land, 37.0=inland water, 50.0=cloud"
===============================================================================