Corals (service test)
The Corals (service test) dataset is consumed from an external ArcGIS web service via the following URL and ID
https://service.ncddc.noaa.gov/arcgis/rest/services/EnvironmentalMonitoring/DSCRTP/MapServer ID: 3
OpenLayers
If you are developing in OpenLayers, you will want to use the OpenLayers ArcGIS93Rest class. An example of your solution might look similar to the code below.
layer = new OpenLayers.Layer.ArcGIS93Rest( "Corals (service test)", "https://service.ncddc.noaa.gov/arcgis/rest/services/EnvironmentalMonitoring/DSCRTP/MapServer/export", { layers: "show:3", transparent: true }, { isBaseLayer: false } ); map.addLayer(layer);