Datasets can be made available through more than one access method by defining and then referencing a compound service element. The following:

<service name="all" serviceType="Compound" base="" >
  <service name="odap" serviceType="OpenDAP" base="/thredds/dodsC/" />
  <service name="wcs" serviceType="WCS" base="/thredds/wcs/" />

defines a compound service named all which contains two nested services. Any dataset that reference the compound service will have two access methods. For instance:

<dataset name="SAGE III Ozone 2006-10-31" urlPath="sage/" ID="">

would result in these two access URLs, one for OpenDAP access


and, one for WCS access:


The contained services can still be referenced independently. For instance:

<dataset name="Global Averages" urlPath="sage/" ID="">

results in a single access URL: