Logo

Hyrax Server Help


To access most of the features of this OPeNDAP server, append one of the following a eleven suffixes to the URL of a dataset: .das, .dds, .ddx, .rdf, .dods, .nc, ascii, .xdods, .info, .ver or .help.

Using these suffixes, you can ask this server for:

suffix

Description

Data Request Form

.html

The html data request form for the specified data set.

Metadata Responses

.das

Dataset Attribute Structure (DAS)

.dds

Dataset Descriptor Structure (DDS

.ddx

XML version of the DDS/DAS

.rdf

An RDF representation of the DDX

.info

An html document that displays the data set's attributes, types and other information.

.ver

An XML document describing the version of the server and its components.

Data Responses

.dods

DAP data object (A constrained DDS populated with data)

.nc

A netCDF file containing the DAP data object (dods response).

.ascii (or .asc)

A CSV representation of the DAP data object (dods response).

.xdods

An XML representation of the DAP data object (dods response). May be size capped.

Help Page

help

help information (this text)

For example, to request the DAS object from the FNOC1 dataset at URI/GSO (a experiments dataset) you would append `.das' to the URL: http://test.opendap.org/opendap/data/nc/fnoc1.nc.das.

Note: Many OPeNDAP clients supply these extensions for you so you don't need to append them (for example when using interfaces supplied by us or software re-linked with a OPeNDAP client-library). Generally, you only need to add these if you are typing a URL directly into a WWW browser.

Note: If you would like version information for this server but don't know a specific data file or data set name, use `/version' for the filename. For example: http://test.opendap.org/opendap/version will return the version number for the netCDF server used in the first example.

Suggestion: If you're typing this URL into a WWW browser and would like information about the dataset, use the `.info' extension.

If you'd like to see a data values, use the `.html' extension and submit a query using the customized form.

For more information about the server look HERE.