=======================================================================
VNP13A1 V2.0.3 L3
--------------------
Suomi NPP HDF5 File Specification
Version: V1.0.9
Revision: 0
Date: 16 January 2018
ESDT: VNP13A1
Name: VIIRS 16 days 500m Vegetation Index (VI)
Level: 3
Process ID: MCD_PR13A1
ESDT: VNP13A1
Point of Contact:
Armando Barreto
VIP Lab
University of Arizona, Tucson, AZ 85721, USA
Office 520 621 4554
abarreto@email.arizona.edu
https://vip.arizona.edu
Principal Investigator:
Kamel L Didan
VIP Lab
University of Arizona, Tucson, AZ 85721, USA
Office 520 621 8514
didan@email.arizona.edu
https://vip.arizona.edu
=======================================================================
Product Identifier: VNP13A1
Description: VIIRS 16 days 500m Vegetation Index (VI)
Contents:
SDS names:
500 m 16 days NDVI
500 m 16 days EVI
500 m 16 days EVI2
500 m 16 days VI Quality
500 m 16 days red reflectance
500 m 16 days NIR reflectance
500 m 16 days blue reflectance
500 m 16 days green reflectance
500 m 16 days SWIR1 reflectance
500 m 16 days SWIR2 reflectance
500 m 16 days SWIR3 reflectance
500 m 16 days view zenith angle
500 m 16 days sun zenith angle
500 m 16 days relative azimuth angle
500 m 16 days composite day of the year
500 m 16 days pixel reliability
Global Metadata:
CoreMetadata.0
ArchiveMetadata.0
StructMetadata.0
HDFEOS5Version
*Start Global Attributes ===================================================
Name: Type: Num_Val: Source: Value:
AlgorithmType STRING 1 STIG SCI
AlgorithmVersion STRING 1 STIG Variable
DataResolution STRING 1 PGE 500m
DayNightFlag STRING 1 PGE Variable
EastBoundingCoord DOUBLE 1 STIG Variable
WestBoundingCoord DOUBLE 1 STIG Variable
NorthBoundingCoord DOUBLE 1 STIG Variable
SouthBoundingCoord DOUBLE 1 STIG Variable
RangeBeginningDate DATE 1 PGE Variable
RangeBeginningTime TIME 1 PGE Variable
RangeEndingDate DATE 1 PGE Variable
RangeEndingTime TIME 1 PGE Variable
GRingLatitude DOUBLE 4 PGE Variable
GRingLongitude DOUBLE 4 PGE Variable
HorizontalTileNumber INTEGER 1 PGE Variable
VerticalTileNumber INTEGER 1 PGE Variable
TileID INTEGER 1 PGE Variable
InputPointer STRING 5 PGE Variable
LocalGranuleID STRING 1 PGE Variable
LongName STRING 1 PGE VIIRS/NPP Level 3 16-Day Vegetation Indices - 500m
NumberofInputGranules INTEGER 1 PGE Variable
PGENumber INTEGER 1 PGE 525
PGEVersion INTEGER 1 PGE Variable
PGE_StartTime DATETIME 1 PGE Variable
PGE_EndTime DATETIME 1 PGE Variable
PGE_Name = PGE525
PlatformShortName STRING 1 PGE NPP
ProcessVersion STRING 1 PGE Variable
ProcessingCenter STRING 1 PGE LandSIPS
ProcessingEnvironment STRING 1 PGE Variable
ProductionTime DATETIME 1 PGE Variable
ProductionType STRING 1 PGE Variable
SatelliteInstrument STRING 1 PGE NPP_OPS
SensorShortname STRING 1 PGE VIIRS
ShortName STRING 1 PGE VNP13A1
VersionID STRING 1 PGE Variable
identifier_product_doi STRING 1 PGE Variable
identifier_product_doi_authority STRING 1 PGE http://dx.doi.org
*End Global Attributes ===================================================
StructMetadata.0 DFNT_CHAR8 32000
GROUP=SwathStructure
END_GROUP=SwathStructure
GROUP=GridStructure
GROUP=GRID_1
GridName="NPP_Grid_16Day_VI_500m"
XDim=2400
YDim=2400
UpperLeftPointMtrs=(-6671703.118000,0.000000)
LowerRightMtrs=(-5559752.598333,-1111950.519667)
Projection=HE5_GCTP_SNSOID
ProjParams=(6371007.181000,0,0,0,0,0,0,0,0,0,0,0,0)
SphereCode=-1
GROUP=Dimension
END_GROUP=Dimension
GROUP=DataField
OBJECT=DataField_1
DataFieldName="500 m 16 days NDVI"
DataType=H5T_NATIVE_SHORT
DimList=("YDim","XDim")
MaxdimList=("YDim","XDim")
CompressionType=HE5_HDFE_COMP_DEFLATE
DeflateLevel=5
END_OBJECT=DataField_1
OBJECT=DataField_2
DataFieldName="500 m 16 days EVI"
DataType=H5T_NATIVE_SHORT
DimList=("YDim","XDim")
MaxdimList=("YDim","XDim")
CompressionType=HE5_HDFE_COMP_DEFLATE
DeflateLevel=5
END_OBJECT=DataField_2
OBJECT=DataField_3
DataFieldName="500 m 16 days EVI2"
DataType=H5T_NATIVE_SHORT
DimList=("YDim","XDim")
MaxdimList=("YDim","XDim")
CompressionType=HE5_HDFE_COMP_DEFLATE
DeflateLevel=5
END_OBJECT=DataField_3
OBJECT=DataField_4
DataFieldName="500 m 16 days VI Quality"
DataType=H5T_NATIVE_USHORT
DimList=("YDim","XDim")
MaxdimList=("YDim","XDim")
CompressionType=HE5_HDFE_COMP_DEFLATE
DeflateLevel=5
END_OBJECT=DataField_4
OBJECT=DataField_5
DataFieldName="500 m 16 days red reflectance"
DataType=H5T_NATIVE_SHORT
DimList=("YDim","XDim")
MaxdimList=("YDim","XDim")
CompressionType=HE5_HDFE_COMP_DEFLATE
DeflateLevel=5
END_OBJECT=DataField_5
OBJECT=DataField_6
DataFieldName="500 m 16 days NIR reflectance"
DataType=H5T_NATIVE_SHORT
DimList=("YDim","XDim")
MaxdimList=("YDim","XDim")
CompressionType=HE5_HDFE_COMP_DEFLATE
DeflateLevel=5
END_OBJECT=DataField_6
OBJECT=DataField_7
DataFieldName="500 m 16 days blue reflectance"
DataType=H5T_NATIVE_SHORT
DimList=("YDim","XDim")
MaxdimList=("YDim","XDim")
CompressionType=HE5_HDFE_COMP_DEFLATE
DeflateLevel=5
END_OBJECT=DataField_7
OBJECT=DataField_8
DataFieldName="500 m 16 days green reflectance"
DataType=H5T_NATIVE_SHORT
DimList=("YDim","XDim")
MaxdimList=("YDim","XDim")
CompressionType=HE5_HDFE_COMP_DEFLATE
DeflateLevel=5
END_OBJECT=DataField_8
OBJECT=DataField_9
DataFieldName="500 m 16 days SWIR1 reflectance"
DataType=H5T_NATIVE_SHORT
DimList=("YDim","XDim")
MaxdimList=("YDim","XDim")
CompressionType=HE5_HDFE_COMP_DEFLATE
DeflateLevel=5
END_OBJECT=DataField_9
OBJECT=DataField_10
DataFieldName="500 m 16 days SWIR2 reflectance"
DataType=H5T_NATIVE_SHORT
DimList=("YDim","XDim")
MaxdimList=("YDim","XDim")
CompressionType=HE5_HDFE_COMP_DEFLATE
DeflateLevel=5
END_OBJECT=DataField_10
OBJECT=DataField_11
DataFieldName="500 m 16 days SWIR3 reflectance"
DataType=H5T_NATIVE_SHORT
DimList=("YDim","XDim")
MaxdimList=("YDim","XDim")
CompressionType=HE5_HDFE_COMP_DEFLATE
DeflateLevel=5
END_OBJECT=DataField_11
OBJECT=DataField_12
DataFieldName="500 m 16 days view zenith angle"
DataType=H5T_NATIVE_SHORT
DimList=("YDim","XDim")
MaxdimList=("YDim","XDim")
CompressionType=HE5_HDFE_COMP_DEFLATE
DeflateLevel=5
END_OBJECT=DataField_12
OBJECT=DataField_13
DataFieldName="500 m 16 days sun zenith angle"
DataType=H5T_NATIVE_SHORT
DimList=("YDim","XDim")
MaxdimList=("YDim","XDim")
CompressionType=HE5_HDFE_COMP_DEFLATE
DeflateLevel=5
END_OBJECT=DataField_13
OBJECT=DataField_14
DataFieldName="500 m 16 days relative azimuth angle"
DataType=H5T_NATIVE_SHORT
DimList=("YDim","XDim")
MaxdimList=("YDim","XDim")
CompressionType=HE5_HDFE_COMP_DEFLATE
DeflateLevel=5
END_OBJECT=DataField_14
OBJECT=DataField_15
DataFieldName="500 m 16 days composite day of the year"
DataType=H5T_NATIVE_SHORT
DimList=("YDim","XDim")
MaxdimList=("YDim","XDim")
CompressionType=HE5_HDFE_COMP_DEFLATE
DeflateLevel=5
END_OBJECT=DataField_15
OBJECT=DataField_16
DataFieldName="500 m 16 days pixel reliability"
DataType=H5T_NATIVE_SCHAR
DimList=("YDim","XDim")
MaxdimList=("YDim","XDim")
CompressionType=HE5_HDFE_COMP_DEFLATE
DeflateLevel=5
END_OBJECT=DataField_16
END_GROUP=DataField
GROUP=MergedFields
END_GROUP=MergedFields
END_GROUP=GRID_1
END_GROUP=GridStructure
GROUP=PointStructure
END_GROUP=PointStructure
GROUP=ZaStructure
END_GROUP=ZaStructure
END
*End StructMetadata.0 ===================================================
*Begin SDS Definitions ===================================================
SDS Name: 500 m 16 days NDVI
Description: 500m 16 day NDVI from VIIRS
Number Type: INT16
Rank: 2
Dimension Sizes: Variable, 2400, 2400
Dimension Names:
Dimension0: "Ydim"
Dimension1: "Xdim"
SDS Attributes:
long_name STRING 17 PGE 500 m 16 days NDVI
units STRING length PGE "NDVI"
_FillValue INT16 1 PGE -15000
calibrated_nt INTEGER 15 PGE 5
add_offset FLOAT64 1 PGE 0.0
add_offset_err FLOAT64 1 PGE 0.0
scale_factor FLOAT64 1 PGE 10000.0
scale_factor_err FLOAT64 1 PGE 0.0
valid_range INT16 2 PGE -10000,10000
===================================================
SDS Name: 500 m 16 days EVI
Description: 500m 16 day EVI from VIIRS
Number Type: INT16
Rank: 2
Dimension Sizes: Variable, 2400, 2400
Dimension Names:
Dimension0: "Ydim"
Dimension1: "Xdim"
SDS Attributes:
long_name STRING 17 PGE 500 m 16 days EVI
units STRING length PGE "EVI"
_FillValue INT16 1 PGE -15000
calibrated_nt INTEGER 15 PGE 5
add_offset FLOAT64 1 PGE 0.0
add_offset_err FLOAT64 1 PGE 0.0
scale_factor FLOAT64 1 PGE 10000.0
scale_factor_err FLOAT64 1 PGE 0.0
valid_range INT16 2 PGE -10000,10000
===================================================
SDS Name: 500 m 16 days EVI2
Description: 500m 16 day EVI2 from VIIRS
Number Type: INT16
Rank: 2
Dimension Sizes: Variable, 2400, 2400
Dimension Names:
Dimension0: "Ydim"
Dimension1: "Xdim"
SDS Attributes:
long_name STRING 17 PGE 500 m 16 days EVI2
units STRING length PGE "EVI2"
_FillValue INT16 1 PGE -15000
calibrated_nt INTEGER 15 PGE 5
add_offset FLOAT64 1 PGE 0.0
add_offset_err FLOAT64 1 PGE 0.0
scale_factor FLOAT64 1 PGE 10000.0
scale_factor_err FLOAT64 1 PGE 0.0
valid_range INT16 2 PGE -10000,10000
===================================================
SDS Name: 500 m 16 days VI Quality
Description: 500 m 16 days VI Quality
Number Type: UINT16
Rank: 2
Dimension Sizes: Variable, 2400, 2400
Dimension Names:
Dimension0: "Ydim"
Dimension1: "Xdim"
SDS Attributes:
long_name STRING 17 PGE 500 m 16 days VI Quality
units STRING length PGE "bit field"
_FillValue INT16 1 PGE 65535
valid_range INT16 2 PGE 0,65534
Legend STRING 1122 PGE =
Bit Fields Description (Right to Left):
[0-1] : MODLAND_QA [2 bit range]
00: VI produced, good quality
01: VI produced, but check other QA
10: Pixel produced, but most probably cloudy
11: Pixel not produced due to other reasons than clouds
[2-5] : VI usefulness [4 bit range]
0000: Highest quality
0001: Lower quality
0010..1010: Decreasing quality
1100: Lowest quality
1101: Quality so low that it is not useful
1110: L1B data faulty
1111: Not useful for any other reason/not processed
[6-7] : Aerosol quantity [2 bit range]
00: Climatology
01: Low
10: Average
11: High (11)
[8] : Adjacent cloud detected; [1 bit range]
1: Yes
0: No
[9] : Atmosphere BRDF correction performed [1 bit range]
1: Yes
0: No
[10] : Mixed clouds [1 bit range]
1: Yes
0: No
[11-13] : Land/Water Flag [3 bit range]
000: land & desert
001: land no desert
010: inland water
011: sea water
101: coastal
[14] : Possible snow/ice [1 bit range]
1: Yes
0: No
[15] : Possible shadow [1 bit range]
1: Yes
0: No
===================================================
SDS Name: 500 m 16 days red reflectance
Description: 500 m 16 days red reflectance
Number Type: INT16
Rank: 2
Dimension Sizes: Variable, 2400, 2400
Dimension Names:
Dimension0: "Ydim"
Dimension1: "Xdim"
SDS Attributes:
long_name STRING 17 PGE 500 m 16 days red reflectance
units STRING length PGE "reflectance"
_FillValue INT16 1 PGE -1000
calibrated_nt INTEGER 15 PGE 5
add_offset FLOAT64 1 PGE 0.0
add_offset_err FLOAT64 1 PGE 0.0
scale_factor FLOAT64 1 PGE 10000.0
scale_factor_err FLOAT64 1 PGE 0.0
valid_range INT16 2 PGE 0,10000
Legend STRING 114 PGE The red band saved in the VI product is NPP VIIRS
I1 (375m)
Bandwidth : 600-680 nm
Band center: 640 nm
===================================================
SDS Name: 500 m 16 days NIR reflectance
Description: 500 m 16 days NIR reflectance
Number Type: INT16
Rank: 2
Dimension Sizes: Variable, 2400, 2400
Dimension Names:
Dimension0: "Ydim"
Dimension1: "Xdim"
SDS Attributes:
long_name STRING 17 PGE 500 m 16 days NIR reflectance
units STRING length PGE "reflectance"
_FillValue INT16 1 PGE -1000
calibrated_nt INTEGER 15 PGE 5
add_offset FLOAT64 1 PGE 0.0
add_offset_err FLOAT64 1 PGE 0.0
scale_factor FLOAT64 1 PGE 10000.0
scale_factor_err FLOAT64 1 PGE 0.0
valid_range INT16 2 PGE 0,10000
Legend STRING 114 PGE The NIR band saved in the VI product is NPP VIIRS
I2 (375m)
Bandwidth : 846-885 nm
Band center: 865 nm
===================================================
SDS Name: 500 m 16 days blue reflectance
Description: 500 m 16 days blue reflectance
Number Type: INT16
Rank: 2
Dimension Sizes: Variable, 2400, 2400
Dimension Names:
Dimension0: "Ydim"
Dimension1: "Xdim"
SDS Attributes:
long_name STRING 17 PGE 500 m 16 days blue reflectance
units STRING length PGE "reflectance"
_FillValue INT16 1 PGE -1000
calibrated_nt INTEGER 15 PGE 5
add_offset FLOAT64 1 PGE 0.0
add_offset_err FLOAT64 1 PGE 0.0
scale_factor FLOAT64 1 PGE 10000.0
scale_factor_err FLOAT64 1 PGE 0.0
valid_range INT16 2 PGE 0,10000
Legend STRING 114 PGE The blue band saved in the VI product is NPP VIIRS
M3 (750m)
Bandwidth : 478-498 nm
Band center: 488 nm
===================================================
SDS Name: 500 m 16 days green reflectance
Description: 500 m 16 days green reflectance
Number Type: INT16
Rank: 2
Dimension Sizes: Variable, 2400, 2400
Dimension Names:
Dimension0: "Ydim"
Dimension1: "Xdim"
SDS Attributes:
long_name STRING 17 PGE 500 m 16 days green reflectance
units STRING length PGE "reflectance"
_FillValue INT16 1 PGE -1000
calibrated_nt INTEGER 15 PGE 5
add_offset FLOAT64 1 PGE 0.0
add_offset_err FLOAT64 1 PGE 0.0
scale_factor FLOAT64 1 PGE 10000.0
scale_factor_err FLOAT64 1 PGE 0.0
valid_range INT16 2 PGE 0,10000
Legend STRING 114 PGE The green band saved in the VI product is NPP VIIRS
M4 (750m)
Bandwidth : 545-565 nm
Band center: 555 nm
===================================================
SDS Name: 500 m 16 days SWIR1 reflectance
Description: 500 m 16 days SWIR1 reflectance
Number Type: INT16
Rank: 2
Dimension Sizes: Variable, 2400, 2400
Dimension Names:
Dimension0: "Ydim"
Dimension1: "Xdim"
SDS Attributes:
long_name STRING 17 PGE 500 m 16 days SWIR1 reflectance
units STRING length PGE "reflectance"
_FillValue INT16 1 PGE -1000
calibrated_nt INTEGER 15 PGE 5
add_offset FLOAT64 1 PGE 0.0
add_offset_err FLOAT64 1 PGE 0.0
scale_factor FLOAT64 1 PGE 10000.0
scale_factor_err FLOAT64 1 PGE 0.0
valid_range INT16 2 PGE 0,10000
Legend STRING 114 PGE The SWIR1 band saved in the VI product is NPP VIIRS
M8 (750m)
Bandwidth : 1230-1250 nm
Band center: 1240 nm
===================================================
SDS Name: 500 m 16 days SWIR2 reflectance
Description: 500 m 16 days SWIR2 reflectance
Number Type: INT16
Rank: 2
Dimension Sizes: Variable, 2400, 2400
Dimension Names:
Dimension0: "Ydim"
Dimension1: "Xdim"
SDS Attributes:
long_name STRING 17 PGE 500 m 16 days SWIR2 reflectance
units STRING length PGE "reflectance"
_FillValue INT16 1 PGE -1000
calibrated_nt INTEGER 15 PGE 5
add_offset FLOAT64 1 PGE 0.0
add_offset_err FLOAT64 1 PGE 0.0
scale_factor FLOAT64 1 PGE 10000.0
scale_factor_err FLOAT64 1 PGE 0.0
valid_range INT16 2 PGE 0,10000
Legend STRING 114 PGE The SWIR2 band saved in the VI product is NPP VIIRS
M10 (750m)
Bandwidth : 1580-1640 nm
Band center: 1610 nm
===================================================
SDS Name: 500 m 16 days SWIR3 reflectance
Description: 500 m 16 days SWIR3 reflectance
Number Type: INT16
Rank: 2
Dimension Sizes: Variable, 2400, 2400
Dimension Names:
Dimension0: "Ydim"
Dimension1: "Xdim"
SDS Attributes:
long_name STRING 17 PGE 500 m 16 days SWIR3 reflectance
units STRING length PGE "reflectance"
_FillValue INT16 1 PGE -1000
calibrated_nt INTEGER 15 PGE 5
add_offset FLOAT64 1 PGE 0.0
add_offset_err FLOAT64 1 PGE 0.0
scale_factor FLOAT64 1 PGE 10000.0
scale_factor_err FLOAT64 1 PGE 0.0
valid_range INT16 2 PGE 0,10000
Legend STRING 114 PGE The SWIR3 band saved in the VI product is NPP VIIRS
M11 (750m)
Bandwidth : 2225-2275 nm
Band center: 2250 nm
===================================================
SDS Name: 500 m 16 days view zenith angle
Description: 500 m 16 days view zenith angle
Number Type: INT16
Rank: 2
Dimension Sizes: Variable, 2400, 2400
Dimension Names:
Dimension0: "Ydim"
Dimension1: "Xdim"
SDS Attributes:
long_name STRING 17 PGE 500 m 16 days view zenith angle
units STRING length PGE "degrees"
_FillValue INT16 1 PGE -20000
calibrated_nt INTEGER 15 PGE 5
add_offset FLOAT64 1 PGE 0.0
add_offset_err FLOAT64 1 PGE 0.0
scale_factor FLOAT64 1 PGE 100.0
scale_factor_err FLOAT64 1 PGE 0.0
valid_range INT16 2 PGE 0,18000
===================================================
SDS Name: 500 m 16 days sun zenith angle
Description: 500 m 16 days sun zenith angle
Number Type: INT16
Rank: 2
Dimension Sizes: Variable, 2400, 2400
Dimension Names:
Dimension0: "Ydim"
Dimension1: "Xdim"
SDS Attributes:
long_name STRING 17 PGE 500 m 16 days sun zenith angle
units STRING length PGE "degrees"
_FillValue INT16 1 PGE -20000
calibrated_nt INTEGER 15 PGE 5
add_offset FLOAT64 1 PGE 0.0
add_offset_err FLOAT64 1 PGE 0.0
scale_factor FLOAT64 1 PGE 100.0
scale_factor_err FLOAT64 1 PGE 0.0
valid_range INT16 2 PGE 0,18000
===================================================
SDS Name: 500 m 16 days relative azimuth angle
Description: 500 m 16 days relative azimuth angle
Number Type: INT16
Rank: 2
Dimension Sizes: Variable, 2400, 2400
Dimension Names:
Dimension0: "Ydim"
Dimension1: "Xdim"
SDS Attributes:
long_name STRING 17 PGE 500 m 16 days relative azimuth angle
units STRING length PGE "degrees"
_FillValue INT16 1 PGE -20000
calibrated_nt INTEGER 15 PGE 5
add_offset FLOAT64 1 PGE 0.0
add_offset_err FLOAT64 1 PGE 0.0
scale_factor FLOAT64 1 PGE 100.0
scale_factor_err FLOAT64 1 PGE 0.0
valid_range INT16 2 PGE -18000,18000
===================================================
SDS Name: 500 m 16 days composite day of the year
Description: 500 m 16 days composite day of the year
Number Type: INT16
Rank: 2
Dimension Sizes: Variable, 2400, 2400
Dimension Names:
Dimension0: "Ydim"
Dimension1: "Xdim"
SDS Attributes:
long_name STRING 17 PGE 500 m 16 days composite day of the year
units STRING length PGE "Julian day of the year"
_FillValue INT16 1 PGE -1
valid_range INT16 2 PGE 1,366
===================================================
SDS Name: 500 m 16 days pixel reliability
Description: 500 m 16 days pixel reliability
Number Type: INT8
Rank: 2
Dimension Sizes: Variable, 2400, 2400
Dimension Names:
Dimension0: "Ydim"
Dimension1: "Xdim"
SDS Attributes:
long_name STRING 17 PGE 500 m 16 days pixel reliability
units STRING length PGE "rank"
_FillValue INT16 1 PGE -4
valid_range INT16 2 PGE 0,11
Legend STRING 1122 PGE =
Rank Keys:
[0]: Excellent
[1]: Good
[2]: Acceptable
[3]: Marginal
[4]: Pass
[5]: Questionable
[6]: Poor
[7]: Cloud Shadow
[8]: Snow/Ice
[9]: Cloud
[10]: Estimated
[11]: LTAVG
[-1]: NODATA
[-4]: Water
*End SDS Definitions ===================================================