Metadata Fields - SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture, Version 4
This page provides a description of all metadata fields within the SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture (SPL3SMP) product. All metadata fields are described in Table 1.
For a description of data fields for this product, refer to the Data Fields document.
Representative ISO Class | SMAP HDF5 Metadata Subgroup | SMAP HDF5 Subpath | SMAP HDF5 Attribute | Definition |
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MD_AcquisitionInformation |
AcquisitionInformation |
platform |
antennaRotationRate |
<The antenna rotation rate in revolution per minute (rpm)> |
description |
The SMAP observatory houses an L-band radiometer that operates at 1.40 GHz and an L-band radar that operates at 1.26 GHz. The instruments share a rotating reflector antenna with a 6 meter aperture that scans over a 1000 km swath. The bus is a 3 axis stabilized spacecraft that provides momentum compensation for the rotating antenna. |
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identifier |
SMAP |
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radar, |
description |
The SMAP radar instrument employs an L-band conically scanned system and SAR processing techniques to achieve moderate resolution (1 km) backscatter measurements over a very wide 1000 km swath. |
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identifier |
SMAP SAR |
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type |
L-band Synthetic Aperture Radar |
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platformDocument, |
edition |
<The edition of publication of the reference document, if available to the general public.> |
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publicationDate |
<The date of publication of the reference document, if available to the general public.> |
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title |
<The title of the publication of the reference document, if available to the general public.> |
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DQ_DataQuality |
DataQuality |
DomainConsistency |
evaluationMethodType |
<The type of data quality evaluation method. "directInternal" means the method of evaluating the quality of a dataset based on inspection of items within the dataset, where all data required is internal to the dataset being evaluated.> |
measureDescription |
<The description of the Domain Consistency measurement.> |
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nameOfMeasure |
<The name of the measurements> |
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unitOfMeasure |
Percent |
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value |
<A measure between 0 and 100> |
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CompletenessOmission |
evaluationMethodType |
<The type of data quality evaluation method. "directInternal" means the method of evaluating the quality of a dataset based on inspection of items within the dataset, where all data required is internal to the dataset being evaluated.> |
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measureDescription |
<The description of the Completeness Omission measurement.> |
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nameOfMeasure |
Percent of Missing Data |
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unitOfMeasure |
Percent |
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value |
<A measure between 0 and 100> |
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scope |
<A list of data elements of the product, that are used for DataQuality measurement> |
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DS_Dataset/ |
DatasetIdentification |
CompositeReleaseID |
<SMAP Composite Release ID associated with this data product> |
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ECSVersionID |
<Identifier that specifies major version delivered to ECS (EOSDIS Core System). Value runs from 001 to 999> |
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SMAPShortName |
<The SMAP Mission product short name of this data product.> |
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UUID |
<A universally unique identifier for each data granule.> |
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abstract |
<A short description of this data product.> |
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characterSet |
utf8 |
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creationDate |
<Date when this data product file was created> |
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credit |
<Identify the institutional authorship of the product generation software and the data system that automates its production.> |
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fileName |
<The name of this data product file.> |
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language |
eng |
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originatorOrganizationName |
Jet Propulsion Laboratory |
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otherCitationDetails |
<The description of the state of the product generation software for this data product file.> |
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purpose |
<The description of the purpose of this data product file.> |
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shortName |
<The ECS short name of this data product in 8 characters.> |
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spatialRepresentationType |
grid |
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status |
onGoing |
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topicCategory |
geoscientificInformation |
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EX_Extent |
Extent |
description |
<The description of the spatial and temporal extents of the data product.> |
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eastBoundLongitude |
<The most eastern boundary of the spatial extent the data product covers (Longitude measure between -180 degrees and 180 degrees)> |
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northBoundLatitude |
<The most northern boundary of the spatial extent the data product covers (Latitude measure between -90 degrees and 90 degrees)> |
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rangeBeginningDateTime |
<Character string that indicates the date and time of the initial data element in the product> |
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rangeEndingDateTime |
<Character string that indicates the date and time of the final data element in the product.> |
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southBoundLatitude |
<The most southern boundary of the spatial extent the data product covers (Latitude measure between -90 degrees and 90 degrees)> |
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westBoundLongitude |
<The most western boundary of the spatial extent the data product covers (Longitude measure between -180 degrees and 180 degrees)> |
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MD_GridSpatialRepresentation |
GridSpatialRepresentation |
GridDefinitionDocument |
edition |
<The version of the grid definition document> |
publicationDate |
<The publication date of the grid definition document> |
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title |
<The title of the grid definition document> |
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Column, |
dimensionSize |
<The size of the dimension of the arrays in this specific projection are organized in this data product file> |
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resolution |
<The spatial resolution each data point represents, in kilometer> |
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GridDefinition |
description |
<The description of the grid definition applied for the data product generation> |
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identifier |
<The short name identifying the grid definition of this data product> |
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cellGeometry |
<Indication of grid data as point or area> |
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controlPointAvailability |
<Indication of whether or not control points are available (0 implies not available and 1 implies available)> |
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georeferencedParameters |
<The parameters used for the conversion of the geographic location information to the map projection of interest> |
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numberOfDimensions |
<The number of dimensions of the arrays in this specific projection are organized in this data product file> |
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orientationParameterAvailability |
<Indication of whether or not orientation parameters are available (0 implies not available and 1 implies available)> |
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transformationParameterAvailability |
<The indication of whether the parameters for transformation exists or not (0 implies not available and 1 implies available)> |
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LI_Lineage/LE_Source |
Lineage |
L2_SM_P |
DOI |
<A digital object identifier associated with the input product. This field appears only for the Lineage class that describes the SMAP science data product.> |
creationDate |
<Date when the corresponding input product file was created> |
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description |
<Description of each of the input files used to generate this data product.> |
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fileName |
<The name of the corresponding input product file.> |
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identifier |
<The short name associated with the input SMAP science data product.> |
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resolution |
<The spatial resolution each data point represents, in kilometer> |
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version |
<The SMAP Composite Version ID associated with the input data product.> |
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EASEGRID_LON_M, |
creationDate |
<Date when the corresponding ancillary input file was created> |
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description |
<Description of each ancillary input file used to generate this data product.> |
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fileName |
<The name of the ancillary input file.> |
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version |
<The version number of the ancillary input file.> |
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SD_OrbitMeasuredLocation |
OrbitMeasuredLocation |
startRevNumber |
<The lowest orbit number among the input product granules> |
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stopRevNumber |
<The highest orbit number among the input product granules> |
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LI_Lineage/LE_ProcessStep |
ProcessStep |
ATBDDate |
<Time stamp that specifies the release date of the ATBD> |
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ATBDTitle |
<The title of the ATBD> |
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ATBDVersion |
<Version identifier for the ATBD.> |
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SWVersionID |
<A software version identifier that runs from 001 to 999> |
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algorithmDate |
<Date associated with current version of the algorithm.> |
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algorithmDescription |
<Descriptive text about the algorithm(s) in the product generation software for this data product.> |
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algorithmTitle |
<The representative name of the algorithm for this data product.> |
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algorithmVersionID |
<Identifier that specifies the current algorithm version. Value runs from 001 to 999> |
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documentDate |
<Release date for the software description document.> |
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documentVersion |
<Version identifier for the software description document.> |
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documentation |
<A reference to software description document.> |
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epochJulianDate |
<Julian Date of the Epoch J2000, 2451545> |
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epochUTCDateTime |
<UTC Date Time of the Epoch J2000, 2000-01-01T11:58:55.816Z> |
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identifier |
<Name of the product generation software for this data product> |
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parameterVersionID |
<Identifier that specifies the current version of processing parameters. Value runs from 001 to 999.> |
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processDescription |
<Short description of the data processing concept by the product generation software.> |
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processor |
<Name of the product generation facility> |
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softwareDate |
<A date stamp that specifies when software used to generate this product was released.> |
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softwareTitle |
<The title of the product generation facility> |
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stepDateTime |
< A character string that specifies the date and the time when the product was generated.> |
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timeVariableEpoch |
<The Epoch of the time variable for the SMAP mission> |
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DS_Series/MD_DataIdentification |
ProductSpecificationDocument |
SMAPShortName |
<The SMAP Mission product short name of this data product.> |
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characterSet |
utf8 |
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edition |
<Edition identifier for the Product Specification Document> |
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language |
eng |
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publicationDate |
<Date of publication of the Product Specification Document> |
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title |
<The title of the product specification document> |
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DQ_DataQuality |
QA |
MissingSamples |
<The number of samples missing in this data products> |
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OutOfBoundsSamples |
<The number of samples that are exceeding the predefined boundary> |
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QAPercentOutOfBoundsData |
<Percent of the samples that are exceeding the predefined boundary with respect tot the total samples in this data product> |
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TotalSamples |
<The number of all samples in this data product> |
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DS_Dataset/MD_DataIdentification |
QADatasetIdentification |
abstract |
An ASCII product that contains statistical information on data product results. These statistics enable data producers and users to assess the quality of the data in the data product granule. |
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creationDate |
<The date that the QA product was generated.> |
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fileName |
<The name of QA product.> |
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DS_Series/MD_DataIdentification |
SeriesIdentification |
CompositeReleaseID |
<SMAP Composite Release ID that identifies the release used to generate this data product> |
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ECSVersionID |
<Identifier that specifies major version delivered to ECS. Value runs from 001 to 999> |
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abstract |
<A short description of this data product series.> |
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characterSet |
utf8 |
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credit |
<Identify the institutional authorship of the product generation software and the data system that automates its production.> |
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format |
HDF5 |
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formatVersion |
<The version of the HDF5 library used for the product generation> |
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identifier_product_DOI |
<digital object identifier for the Level 1C S0 HiRes Product> |
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language |
eng |
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longName |
<The long name of this data product (up to 80 characters long)> |
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maintenanceAndUpdateFrequency |
As needed |
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maintenanceDate |
<Specifies a date when the next update to this product might be anticipated> |
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mission |
Soil Moisture Active Passive (SMAP) |
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otherCitationDetails |
<The description of the state of the product generation software for this data product file.> |
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pointOfContact |
<The name of the DAAC this data product is distributed from.> |
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purpose |
<The description of the purpose of this data product file.> |
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resourceProviderOrganizationName |
National Aeronautics and Space Administration |
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revisionDate |
<Date and time of the software release that was used to generate this data product.> |
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shortName |
<The ECS short name of this data product in 8 characters.> |
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spatialRepresentationType |
grid |
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status |
Ongoing |
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topicCategory |
geoscientificInformation |