MOD10C2 and MYD10C2 Global Snow Cover Attributes, Version 5

The MOD10C2 and MYD10C2 snow cover product data files 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 (QA) updates are only reflected in the metadata file.

Use the following links to navigate through this document:

• CoreMetadata.0 (Inventory metadata)
• ArchiveMetadata.0 (Archive Metadata)
• StructMetadata.0 (Structural Metadata)
• Product Specific Attributes

CoreMetadata.0

Object Name	Comments	Sample Value
ShortName	The Earth Science Data Type (ESDT) name of product.	MOD10C2
VersionID	ECS Collection Version.	5
ReprocessingActual	Number of times processed.	reprocessed
ReprocessingPlanned	Expect that products will be reprocessed at least once	further update is anticipated
LocalGranuleID		MOD10C2.A2000057.005.2006260032944.hdf
DayNightFlag		both
ProductionDateTime	Time granule was produced	2006-09-17 03:29:44.0
LocalVersionID	Version of algorithm delivered from the Science Computing Facility (SCF).	SCF V5.0.0
PGEVersion	Version of PGE in MODAPS.	5.0.3
InputPointer	Names of the input files.	MOD10A2.A2000057...
RangeBeginningDate	Beginning date of the first scan line in the swath.	2000-02-26
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.	2000-03-04
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	Eight Day 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.	no automatic quality assessment done in the PGE
OperationalQualityFlag		passed
OperationalQualityFlagExplanation	Explanation of science flag.	passed
ScienceQualityFlag	Set by snow investigator after post-production investigation.	not Investigated
ScienceQualityFlagExplanation	Explanation of science flag.	http://landweb.nascom.nasa.gov/cgi-bin/QA_WWW/qaFlagPage.cgi?sat=terra for the product Science Quality status.
QAPercentMissingData	0-100	0
QAPercentCloudCover	0-100	5
PlatformShortName		Terra
InstrumentShortName		MODIS
SensorShortName		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. Note: pixels identified as cloud are considered Good Quality.	100
QAPercentOtherQuality		0
SnowCoverPercent	Summary percentage of snow-covered land.	43

ArchiveMetadata.0

This attribute contains information relevant to production of the data product. It also contains 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
PlatformShortName	Short name of the platform.	Terra
EastBoundingCoordinate	Extent of swath coverage in latitude and longitude.	180.0
WestBoundingCoordinate		-180.0
NorthBounding Coordinate		90.0
SouthBounding Coordinate		-90.0

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 Attributes

There are no product specific attributes for this data set.