NCEI Topographic and Bathymetric Mosaic

The NCEI Topographic and Bathymetric Mosaic dataset is consumed from an external ArcGIS web service via the following URL and ID

https://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_hillshade/ImageServerImage
ID: 

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(
    "NCEI Topographic and Bathymetric Mosaic",
    "https://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_hillshade/ImageServer/exportImage",
    {
        layers: "show:",
        transparent: true
    },
    {
        isBaseLayer: false
    }
);
map.addLayer(layer);