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MOD10CM and MYD10CM Global Snow Cover Attributes, Version 5

The MOD10CM snow cover products include three Earth Observing System Data and Information System (EOSDIS) Core System (ECS) global attributes. These global attributes are stored as character strings in Parameter Value Language (PVL) format. Also, these global attributes as well as other attributes can be found in the associated metadata file, and are formatted as Extensible Markup Language (XML). The metadata file should be examined to determine if post-production changes were made to the metadata. Post-production metadata changes are not updated in the data file. Changes such as Quality Assessment updates are only reflected in the metadata file.

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CoreMetadata.0

Also known as inventory metadata, core metadata are used to populate the EOSDIS Core System (ECS) inventory, which allows users to locate granules of interest.

Object Name
Comments
Sample Value
ShortName Earth Science Data Type, name of product. MOD10CM
VersionID ECS Version. 5
ReprocessingActual Number of times processed. Reprocessed
ReprocessingPlanned Expect that products will be reprocessed at least once. Further update is anticipated
LocalGranuleID MOD10CM.A2000061.005.2006272184905.hdf
DayNightFlag Snow will have either day or both. Day
ProductionDateTime Time granule was produced. 2006-09-29 18:49:05.0
LocalVersionID Version of algorithm delivered from the Science Computing Facility. SCF V5.0.1
PGEVersion Version of production generation executable. 5.0.2
InputPointer Input data files used to create this product. MOD10C1.A2000091.005.2006259095329.hdf
MOD10C1.A2000090.005.2006259211505.hdf
MOD10C1.A2000089.005.2006259034125.hdf
MOD10C1.A2000088.005.2006258233357.hdf
MOD10C1.A2000087.005.2006258203616.hdf
MOD10C1.A2000086.005.2006258174834.hdf
MOD10C1.A2000085.005.2006258144712.hdf
MOD10C1.A2000084.005.2006258104746.hdf
MOD10C1.A2000083.005.2006258091851.hdf
MOD10C1.A2000082.005.2006258055530.hd
MOD10C1.A2000081.005.2006258003314.hdf
MOD10C1.A2000080.005.2006257183038.hdf
MOD10C1.A2000079.005.2006257183037.hdf
MOD10C1.A2000078.005.2006257163928.hdf
MOD10C1.A2000077.005.2006257095344.hdf
MOD10C1.A2000076.005.2006257085301.hdf
MOD10C1.A2000075.005.2006257061820.hdf
MOD10C1.A2000074.005.2006257170327.hdf
MOD10C1.A2000073.005.2006256231616.hdf
MOD10C1.A2000072.005.2006256232154.hdf
MOD10C1.A2000071.005.2006256113621.hdf
MOD10C1.A2000070.005.2006256063616.hdf
MOD10C1.A2000069.005.2006256063138.hdf
MOD10C1.A2000068.005.2006256063141.hdf
MOD10C1.A2000067.005.2006256062454.hdf
MOD10C1.A2000066.005.2006256060458.hd
MOD10C1.A2000065.005.2006268091631.hdf
MOD10C1.A2000064.005.2006254215852.hdf
MOD10C1.A2000063.005.2006254151412.hdf
MOD10C1.A2000062.005.2006254085832.hdf
MOD10C1.A2000061.005.2006254085830.hdf
RangeBeginningDate Beginning date of the first scan line in the swath. 2000-03-01
RangeBeginningTime Beginning time of the first scan line in the swath. 00:00:00.0000000
RangeEndingDate Ending date of the last scan line in the swath. 2000-03-31
RangeEndingTime Ending time of the last scan line in the swath. 23:59:59.0000000
ParameterName Parameter for which QA statistics are given in this metadata object. Monthly Global Snow Cover
AutomaticQualityFlag Result of automated checks during the run of the algorithm that screens for significant amounts of anomalous data. Passed
AutomaticQualityFlagExplanation Explanation of result of automated QA checks made during execution.  
ScienceQualityFlag Set by snow investigator after post-production investigation. Not investigated
ScienceQualityFlagExplanation Explanation of science flag. Visit http://landweb.nascom.nasa.gov/cgi-bin/QA_WWW/qaFlagPage.cgi?sat=terra for the product Science Quality status.
OperationalQualityFlag   Passed
OperationalQualityFlagExplanation   Passed
QAPercentMissingData 0-100 2
QAPercentCloudCover 0-100 1
EastBoundingCoordinate Extent of swath coverage in latitude and longitude. 180.0
WestBoundingCoordinate -180.0
NorthBoundingCoordinate 90.0
SouthBoundingCoordinate -90.0
ZoneIdentifier   Other Grid System
LocalityValue   Global
AssociatedSensorShortname   MODIS
AssociatedPlatformShortname   Terra
AssociatedInstrumentShortname   MODIS


CoreMetadata.0 Product Specific Attributes (PSAs)

The CoreMetadata.0 product specific metadata attributes can be found by using most search tools. Also, when using certain interfaces for tile numbers, these attributes may be used as search criteria to restrict searches.

Object Name
Comments
Sample Value
QAPercentGoodQuality Summary quality assessment statistics for data product. 97
QAPercentOtherQuality 3
SnowCoverPercent Summary percentage of snow-covered land. 43


ArchiveMetadata.0

Theses attribute contains information relevant to production of the data product. They also contain an alternate bounding of geographic coverage of the swath. These data are useful in determining what version of the algorithm was used to generate the product.

Object Name
Comment
Sample Value
GlobalGridColumns 7200
GlobalGridRows 3600
AlgorithmPackageAcceptanceDate Algorithm descriptors. 03-2006
AlgorithmPackageMaturityCode Normal
AlgorithmPackageName MOD_PR10CM
AlgorithmPackageVersion 5
InstrumentName Moderate Resolution Imaging Spectroradiometer
PlatformShortName Terra
ProcessingDateTime 2006-09-29T14:48:53.000000Z
LongName MODIS/Terra Snow Cover Monthly L3 Global 0.05Deg CMG
ProcessingCenter MODAPS
SPSOParameters None
DescrRevision Version of MCF used. 5.0
ProcessingEnvironment IRIX64 mtvs3 6.5 10070055 IP35


StructMetadata.0

These attributes specify the content and structure of an HDF-EOS file and are not discussed further here. For more information, please see the 2001 white paper titled An HDF-EOS and Data Formatting Primer for the ECS Project.



Product Specific Global Attributes

There are no Product Specific Global Attributes for MOD10CM.