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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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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.
|ShortName||Earth Science Data Type, name of product.||MOD10CM|
|ReprocessingActual||Number of times processed.||Reprocessed|
|ReprocessingPlanned||Expect that products will be reprocessed at least once.||Further update is anticipated|
|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
|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.|
|EastBoundingCoordinate||Extent of swath coverage in latitude and longitude.||180.0|
|ZoneIdentifier||Other Grid System|
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.
|QAPercentGoodQuality||Summary quality assessment statistics for data product.||97|
|SnowCoverPercent||Summary percentage of snow-covered land.||43|
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.
|InstrumentName||Moderate Resolution Imaging Spectroradiometer|
|LongName||MODIS/Terra Snow Cover Monthly L3 Global 0.05Deg CMG|
|DescrRevision||Version of MCF used.||5.0|
|ProcessingEnvironment||IRIX64 mtvs3 6.5 10070055 IP35|
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.
There are no Product Specific Global Attributes for MOD10CM.