全球生态环境遥感监测

（GLASS）遥感数据集产品描述

LAI产品HDF文件命名规则
LAI产品文件名示例：
GLASS01A01.V01.A2003033.h01v07.2011148.hdf

命名规则如下：GLASS01NYY.VXX.AYYYYDDD.HRRVPP.YYYYDDD.hdf
其中：
(1) 产品前缀【GLASS】
    表示全球陆表特征参量产品
(2) 产品代码【01】
    表示本产品为LAI产品
(3) 产品空间分辨率【N】
    GLASSXXAYY：对应相应产品的1km分辨率
    GLASSXXBYY：对应相应产品的0.05°分辨率
    GLASSXXCYY：对应相应产品的5km分辨率
    GLASSXXDYY：对应相应产品的1°分辨率
(4) 算法与数据标识【YY】
    代表产品的算法，数据
(5) 产品版本标识【VXX】
    产品版本号，自V01起算
(6) 产品时间标识【AYYYYDDD】
    生产产品所代表的时间
    YYYY-年份
    DDD-儒略日
(7) 产品位置标识【HRRVPP】
    产品景号信息(即产品所在的SIN投影格网的行列号)
    HRR-行号
    VPP-列号
    注：当使用AVHRR数据生产全球产品或拼接得到全球产品时，HRRVPP忽略。
(8) 生产时间标识【YYYYDDD】
    产品生产的时间
    YYYY-年份
    DDD-儒略日
1.1　LAI产品HDF文件格式组织
        3.2.1 LAI产品数据集
        现有的GLASS LAI产品，空间分辨率为1km，时间分辨率为8天，包含两个数据集：叶面积指数LAI和质量控制数据QC。每个数据集为1200行*1200列的二维HDF-EOS网格波段，数据类型为“uint8”，数据范围为0-255。
        3.2.2 LAI产品数据集私有属性
        LAI产品的每个数据集均包含各自的私有属性，这些属性主要包括：

        3.2.3 LAI产品元数据
元数据主要包括结构元数据、核心元数据和归档元数据三类：

(1) 结构元数据StructMetadata.0
StructMetadata.0的主要内容是：
GROUP=SwathStructure
END_GROUP=SwathStructure
GROUP=GridStructure
GROUP=GRID_1
GridName="GLASS03LAIYY"//YY=01、02、03
XDim=1200
YDim=1200
UpperLeftPointMtrs=(7783653.637667,1111950.519667)
LowerRightMtrs=(8895604.157333,-0.000000)
Projection=GCTP_SNSOID
ProjParams=(6371007.181000,0,0,0,0,0,0,0,0,0,0,0,0)
SphereCode=-1
PixelRegistration=HDFE_CENTER
GROUP=Dimension
OBJECT=Dimension_1
DimensionName="YDim"
Size=1200
END_OBJECT=Dimension_1
OBJECT=Dimension_2
DimensionName="XDim"
Size=1200
END_OBJECT=Dimension_2
END_GROUP=Dimension
GROUP=DataField
OBJECT=DataField_1
DataFieldName="LAI"
DataType=DFNT_UINT8
DimList=("YDim","XDim")
END_OBJECT=DataField_1
OBJECT=DataField_2
DataFieldName="QC"
DataType=DFNT_UINT8
DimList=("YDim","XDim")
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
(2) 核心元数据CoreMetadata.0
CoreMetadata.0的主要内容是
GROUP = INVENTORYMETADATA
GROUPTYPE = MASTERGROUP

GROUP = ECSDATAGRANULE

OBJECT = LOCALGRANULEID
NUM_VAL = 1
VALUE= "GLASS03LAI01.V01.A2008065.h25v05.2011085.hdf"
END_OBJECT = LOCALGRANULEID
OBJECT = PRODUCTIONDATETIME
NUM_VAL = 1
VALUE = 2011-7-1 20:33:45
END_OBJECT = PRODUCTIONDATETIME
OBJECT = DAYNIGHTFLAG
NUM_VAL = 1
VALUE = "Day"
END_OBJECT = DAYNIGHTFLAG

OBJECT = REPROCESSINGACTUAL
NUM_VAL = 1
VALUE = "reprocessed"
END_OBJECT = REPROCESSINGACTUAL

OBJECT = LOCALVERSIONID
NUM_VAL = 1
VALUE = "V01"
END_OBJECT = LOCALVERSIONID

OBJECT = REPROCESSINGPLANNED
NUM_VAL = 1
VALUE = "further update is anticipated"
END_OBJECT = REPROCESSINGPLANNED

END_GROUP = ECSDATAGRANULE

GROUP = COLLECTIONDESCRIPTIONCLASS

OBJECT = PARAMETERNAME
CLASS ="1"
NUM_VAL = 1
VALUE = "LAI"
END_OBJECT = PARAMETERNAME

OBJECT = VERSIONID
NUM_VAL = 1
VALUE = 1
END_OBJECT = VERSIONID

OBJECT = SHORTNAME
NUM_VAL = 1
VALUE = "GLASS03LAI"
END_OBJECT = SHORTNAME

END_GROUP = COLLECTIONDESCRIPTIONCLASS

GROUP = INPUTGRANULE

OBJECT = INPUTPOINTER
NUM_VAL = 2
VALUE =("G02.MOD09A1.A2008065.h25v05.20110322221021.hdf")
END_OBJECT = INPUTPOINTER

END_GROUP = INPUTGRANULE

GROUP = SPATIALDOMAINCONTAINER

GROUP = HORIZONTALSPATIALDOMAINCONTAINER

GROUP = GPOLYGON
OBJECT = GPOLYGONCONTAINER
CLASS = "1"

GROUP = GRINGPOINT
CLASS = "1"

OBJECT = GRINGPOINTLONGITUDE
NUM_VAL = 4
CLASS = "1"
VALUE = (91.173613,104.453659,92.317643,80.580585)
END_OBJECT = GRINGPOINTLONGITUDE

OBJECT = GRINGPOINTLATITUDE
NUM_VAL = 4
CLASS = "1"
VALUE = (40.063692,39.99869,29.840239,29.896344)
END_OBJECT = GRINGPOINTLATITUDE

OBJECT = GRINGPOINTSEQUENCENO
NUM_VAL = 4
CLASS = "1"
VALUE = (1,2,3,4)
END_OBJECT = GRINGPOINTSEQUENCENO

END_GROUP = GRINGPOINT

GROUP = GRING
CLASS = "1"

OBJECT = EXCLUSIONGRINGFLAG
NUM_VAL = 1
VALUE = "N"
END_OBJECT = EXCLUSIONGRINGFLAG

END_GROUP = GRING

END_OBJECT = GPOLYGONCONTAINER

END_GROUP = GPOLYGON

END_GROUP = HORIZONTALSPATIALDOMAINCONTAINER

END_GROUP = SPATIALDOMAINCONTAINER

GROUP = PGEVERSIONCLASS
OBJECT = PGEVERSION
NUM_VAL = 1
VALUE = "V01"
END_OBJECT = PGEVERSION

END_GROUP = PGEVERSIONCLASS

GROUP = ASSOCIATEDPLATFORMINSTRUMENTSENSOR
OBJECT = ASSOCIATEDPLATFORMINSTRUMENTSENSOR
CLASS = "1"
OBJECT = ASSOCIATEDSENSORSHORTNAME
CLASS = "1"
NUM_VAL = 1
VALUE = "MODIS"
END_OBJECT = ASSOCIATEDSENSORSHORTNAME

OBJECT = ASSOCIATEDPLATFORMSHORTNAME
CLASS = "1"
NUM_VAL = 1
VALUE = "Terra"
END_OBJECT = ASSOCIATEDPLATFORMSHORTNAME

OBJECT = ASSOCIATEDINSTRUMENTSHORTNAME
CLASS = "1"
NUM_VAL = 1
VALUE = "MODIS"
END_OBJECT = ASSOCIATEDINSTRUMENTSHORTNAME

END_OBJECT = ASSOCIATEDPLATFORMINSTRUMENTSENSORCONTAINER

END_GROUP = ASSOCIATEDPLATFORMINSTRUMENTSENSOR

GROUP = ADDITIONALATTRIBUTES

OBJECT = ADDITIONALATTRIBUTESCONTAINER
CLASS = "1"

OBJECT = ADDITIONALATTRIBUTENAME
CLASS = "1"
NUM_VAL = 1
VALUE = "HORIZONTALTILENUMBER"
END_OBJECT = ADDITIONALATTRIBUTENAME

GROUP = INFORMATIONCONTENT
CLASS = "1"

OBJECT = PARAMETERVALUE
NUM_VAL = 1
CLASS = "1"
VALUE = "25"
END_OBJECT = PARAMETERVALUE

END_GROUP = INFORMATIONCONTENT

END_OBJECT = ADDITIONALATTRIBUTESCONTAINER

OBJECT = ADDITIONALATTRIBUTESCONTAINER
CLASS = "2"

OBJECT = ADDITIONALATTRIBUTENAME
CLASS = "2"
NUM_VAL = 1
VALUE = "VERTICALTILENUMBER"
END_OBJECT = ADDITIONALATTRIBUTENAME

GROUP = INFORMATIONCONTENT
CLASS = "2"

OBJECT = PARAMETERVALUE
NUM_VAL = 1
CLASS = "2"
VALUE = "05"
END_OBJECT = PARAMETERVALUE

END_GROUP = INFORMATIONCONTENT

END_OBJECT = ADDITIONALATTRIBUTESCONTAINER

END_GROUP = ADDITIONALATTRIBUTES

END_GROUP = INVENTORYMETADATA

(3) 归档元数据ArchiveMetadata.0
ArchiveMetadata.0的主要内容是：
GROUP = ARCHIVEDMETADATA
GROUPTYPE = MASTERGROUP

OBJECT = DATASETNAME
NUM_VAL = 1
VALUE = GLASS03LAI01
END_OBJECT = DATASETNAME

OBJECT = PRODUCTNAME
NUM_VAL = 1
VALUE = LEAF AREA INDEX
END_OBJECT = PRODUCTNAME

OBJECT = LONGNAME
NUM_VAL = 1
VALUE = Leaf Area Index 8-Day L3 Global 1-km SIN Grid
END_OBJECT = BAND

OBJECT = PRODUCTQUALITY
NUM_VAL = 1
VALUE = CLOUD REMOVED
END_OBJECT = PRODUCTQUALITY

OBJECT = PRODUCTDATEANDTIME
NUM_VAL = 1
VALUE = 2011-07-15 09:25:49
END_OBJECT = PRODUCTDATEANDTIME

OBJECT = INPUTFILESNAME
NUM_VAL = 1
VALUE = ("G02.MOD09A1.A2008065.h25v05.20110322221021.hdf")
END_OBJECT = INPUTFILESNAME

OBJECT = TILENUMBER
NUM_VAL = 1
VALUE = H25V05
END_OBJECT = TILENUMBER

GROUP = TILEINFO

OBJECT = GRIDTYPE
NUM_VAL = 1
VALUE = "Sinusoidal"
END_OBJECT = GRIDTYPE

OBJECT = HORIZONTALTILENUMBER
NUM_VAL = 1
VALUE = "25"
END_OBJECT = HORIZONTALTILENUMBER

OBJECT = VERTICALTILENUMBER
NUM_VAL = 1
VALUE = "05"
END_OBJECT = VERTICALTILENUMBER

END_GROUP = TILEINFO

GROUP = BOUNDINGRECTANGLE

OBJECT = NORTHBOUNDINGCOORDINATE
NUM_VAL = 1
VALUE = 40.063692
END_OBJECT = NORTHBOUNDINGCOORDINATE

OBJECT = SOUTHBOUNDINGCOORDINATE
NUM_VAL = 1
VALUE = 29.840239

END_OBJECT = SOUTHBOUNDINGCOORDINATE

OBJECT = EASTHBOUNDINGCOORDINATE
NUM_VAL = 1
VALUE = 104.453659
END_OBJECT = EASTHBOUNDINGCOORDINATE

OBJECT = WESTHBOUNDINGCOORDINATE
NUM_VAL = 1
VALUE = 80.580585
END_OBJECT = WESTHBOUNDINGCOORDINATE

END_GROUP = BOUNDINGRECTANGLE

OBJECT = CHARACTERISTIC BIN SIZE //像元大小
NUM_VAL = 1
VALUE = 926.6
END_OBJECT = CHARACTERISTICBINSIZE

OBJECT = DATACOLUMNS 数据域列数
NUM_VAL = 1
VALUE = 1200
END_OBJECT = DATA COLUMNS

OBJECT = DATA ROWS 数据域行数
NUM_VAL = 1
VALUE = 1200
END_OBJECT = DATA ROWS

OBJECT = GLOBALGRIDCOLUMNS//全球有多少列
NUM_VAL = 1
VALUE = 43200
END_OBJECT = GLOBALGRIDCOLUMNS

OBJECT = GLOBALGRIDROWS //全球有多少行
NUM_VAL = 1
VALUE = 21600
END_OBJECT = GLOBALGRIDROWS

OBJECT = PROCESSING ENVIRONMENT //处理环境
NUM_VAL = 1
VALUE = "High Performance Computing System"

END_OBJECT = PROCESSINGENVIRONMENT

OBJECT = INSTITUTENAME
NUM_VAL = 1
VALUE = BEIJING NORMAL UNIVERSITY,CHINA
END_OBJECT = INSTITUTENAME

OBJECT = WEBSITE
NUM_VAL = 1
VALUE = www.glass-bnu.com
END_OBJECT = WEBSITE

END_GROUP = ARCHIVEDMETADATA
END
        3.2.4 LAI产品全局属性
LAI产品的全局属性为：
(1) HDFEOSVersion
(2) 待扩展属性