Difference between revisions of "WCS Describe Coverage Document For Cubes"
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|TermDesc=The document describes the coverage in detail, so that the user knows what the data is and what are the dimensions of the data. | |TermDesc=The document describes the coverage in detail, so that the user knows what the data is and what are the dimensions of the data. | ||
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NRL NAAPS for [http://128.252.202.19:8080/NRL?service=WCS&version=1.1.2&Request=DescribeCoverage&identifiers=NAAPS DescribeCoverage] | NRL NAAPS for [http://128.252.202.19:8080/NRL?service=WCS&version=1.1.2&Request=DescribeCoverage&identifiers=NAAPS DescribeCoverage] | ||
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<SupportedFormat>image/netcdf</SupportedFormat> | <SupportedFormat>image/netcdf</SupportedFormat> | ||
<SupportedFormat>application/x-netcdf</SupportedFormat> | <SupportedFormat>application/x-netcdf</SupportedFormat> | ||
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Revision as of 08:15, September 3, 2010
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WCS_Describe_Coverage_Document_For_Cubes Description: The document describes the coverage in detail, so that the user knows what the data is and what are the dimensions of the data.
Glossary Domain: {{{Glossary Domain}}}"{{{Glossary Domain}}}" is not in the list (WCS, HTAP, AQInfrastructure) of allowed values for the "Glossary Domain" property.
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Term Details
NRL NAAPS for DescribeCoverage
<CoverageDescription>
- Title=NOGAPS and NAAPS fields in press coordinate
- Abstract=none
- Identifier=NAAPS
<ows11:Title>NOGAPS and NAAPS fields in press coordinate</ows11:Title> <ows11:Abstract></ows11:Abstract> <Identifier>NAAPS</Identifier>
- Latitude and Longitude bounds in EPSG:4326 and WGS 84 projections. This is regardless what the data projection is.
<ows11:WGS84BoundingBox crs="urn:ogc:def:crs:OGC:2:84"> <ows11:LowerCorner>-179.0000 -89.5000</ows11:LowerCorner> <ows11:UpperCorner>+180.0000 +89.5000</ows11:UpperCorner> </ows11:WGS84BoundingBox>
- Grid bounds and size in the WGS 84 projection, it's the only currently supported projection.
<GridCRS> <GridBaseCRS>urn:ogc:def:crs:OGC:2:84</GridBaseCRS> <GridType>urn:ogc:def:method:WCS:1.1:2dSimpleGrid</GridType> <GridOrigin>-179.0000 -89.5000</GridOrigin> <GridOffsets>+1.0000 +1.0000</GridOffsets> <GridCS>urn:ogc:def:cs:OGC:0.0:Grid2dSquareCS</GridCS> </GridCRS>
- Time dimension
<TimePeriod> <BeginPosition>2007-05-09T00:00:00Z</BeginPosition> <EndPosition>2007-05-20T00:00:00Z</EndPosition> <TimeResolution>PT6H</TimeResolution> </TimePeriod>
- Fields of Coverage. The example is the second on the list.
<Field>
- Human Readable Title
<ows11:Title>specific humidity - nogaps</ows11:Title>
- Machine Readable Identifier
<Identifier>sphu</Identifier>
- Data Definition. Value can be any number, datatype is IEEE 32 bit float and Units Of Measure ia g/g ratio
<Definition> <ows11:AnyValue/> <ows11:DataType>float</ows11:DataType> <ows11:UOM>(g/g)</ows11:UOM> </Definition>
- IEEE standard for not a number.
<NullValue>nan</NullValue>
- Currently no interpolation is allowed. List of Interpolations
<InterpolationMethods> <Default>none</Default> </InterpolationMethods>
- Elevation dimension, values from 1000 to 10 mbar.
<Axis identifier="elev"> <ows11:Title>elevation</ows11:Title> <AvailableKeys> <Key>1000.0</Key> <Key>975.0</Key> <Key>950.0</Key> .... <Key>20.0</Key> <Key>10.0</Key> </AvailableKeys>
- Human readable meaning of the axis. The netCDF-CF has axiscode "Z" for elevation and depth dimension, so we use it.
<ows11:Meaning>Z</ows11:Meaning>
- Type and Units Of Measure
<ows11:DataType>double</ows11:DataType> <ows11:UOM>mbar</ows11:UOM> </Axis> </Field>
At the very end:
- Supported Coordinate Systems, at the very end, linear lat-lon urn:ogc:def:crs:EPSG::4326 and lon-lat urn:ogc:def:crs:OGC:2:84
<SupportedCRS>urn:ogc:def:crs:EPSG::4326</SupportedCRS> <SupportedCRS>urn:ogc:def:crs:OGC:2:84</SupportedCRS>
- Supported Formats: image/netcdf and application/x-netcdf are the same, netCDF-CF. There is a need to standardize this format.
<SupportedFormat>image/netcdf</SupportedFormat> <SupportedFormat>application/x-netcdf</SupportedFormat>