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MODAPS Web Coverage Service (WCS) API

This Application Programming Interface (API) provides access to MODIS Level 1 and Atmosphere data products. The Web Coverage Service (WCS) specification is defined by Open Geospatial Consortium (OGC) and the document below provides an overview of the usage of the REST interface for MODAPS WCS. For more detailed information, or for information about using the XML request format, please refer to the WCS specification.

Sample implementation using this API are provided in the Quick Start Guide. Issues and bugs are listed at Known Issues.

Information about the production, archive and distribution of the data products in LAADS can be found at the MODAPS Services web site.

API Methods

GetCapabilities

Returns a list of coverages

Parameter Description Values
service Service Type WCS
version WCS service version 1.0.0
request Requested operation GetCapabilities
section Desired (sub)section of GetCapabilties One of /, /WCS_Capabilities/Service, /WCS_Capabilities/Capability, /WCS_Capabilities/ContentMetadata

Return Type Description
coverages XML A list of coverages, for use with other methods ( sample ).


DescribeCoverage

Returns a detailed description of a coverage

Parameter Description Values
service Service Type WCS
version WCS service version 1.0.0
request Requested operation DescribeCoverage
coverage The coverage you would like described coverage name, obtained from GetCapabilities

Return Type Description
coverage description XML A detailed description of the coverage, providing information for use in GetCoverage ( sample )


GetCoverage

Returns coverage data

Parameter Description Values
service Service Type WCS
version WCS service version 1.0.0
request Requested operation GetCapabilities
coverage The coverage name coverage name, obtained from GetCapabilities
bbox Bounding Box Comma-delimited floats of the form: west,south,east,north
time Single day YYYY-MM-DDT00:00:00, e.g. 2011-04-10T00:00:00
format Output format One of hdf4,geotiff,jpeg
response_crs Coordinate reference system A valid EPSG CRS code ( see the guide for more information )
resx Resolution width floating point degrees
resy Resolution height floating point degrees
[Axis Name] The name of the 3rd or 4th axis. See RangeSubset section of DescribeCoverage response for the axis name to use String of the form N/N/1, where N is the slice you want.

Return Type Description
data hdf4,geotiff,jpeg,xml The requested data. Errors are in XML format.

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