<descriptor thcode="62"><thesaurus thcode="62" name="Coastal and Marine Ecological Classification Standard" scope="Categories of ecosystems for coastal, estuarine, and marine environments." creator="FGDC" rights="public domain" date="2017-05-10" codetype="alpha" prefix="cmecs" uri="https://www2.usgs.gov/science/CMECS" tblname="cmecs" root_code="root" contact="pschweitzer"><category><term thcode="25" code="16" name="hierarchical" parent="11" scope="Substantive broader-narrower relationships exist among the terms."/><term thcode="25" code="16" name="hierarchical" parent="11" scope="Substantive broader-narrower relationships exist among the terms."/></category><altlabel><altlabel>CMECS</altlabel><altlabel>CMECS</altlabel><altlabel>Coastal and Marine Ecological Classification Standard (CMECS)</altlabel><altlabel>Coastal and Marine Ecological Classification Standard (CMECS)</altlabel></altlabel></thesaurus><term thcode="62" code="WC-685" name="Coastally Trapped Wave" parent="WC-683" scope="Hydroform: A wave that moves along the coastal margin, which forms a trapping barrier."/><bt><term thcode="62" code="WC-683" name="Wave" parent="WC-C012" scope="Hydroform Class: The Wave Hydroform Class is a propagation of energy that moves through the water, causing a vertical, oscillatory motion with characteristic wavelength, amplitude, and celerity. ..."/><term thcode="62" code="WC-C012" name="Hydroform" parent="WC-C001"/><term thcode="62" code="WC-C001" name="Water Column" parent="root"/><term thcode="62" code="root" name="CMECS" scope="Coastal and Marine Ecological Classification Standard: Category terms encompassing waters from the head of tide or inland incursion of ocean salinity to the splash zone of the coasts to the deepest portions of the oceans and the deep waters of the Great Lakes."/></bt><nt><term thcode="62" code="WC-699" name="External Kelvin Wave" parent="WC-685" scope="Hydroform Type: Surface gravity wave with a rotational component propagated along the sea surface against a vertical barrier such as a coast or the wall of a basin. ..."/><term thcode="62" code="WC-698" name="Internal Kelvin Wave" parent="WC-685" scope="Hydroform Type: Subsurface gravity wave with a rotational component propagated along a density interface against a vertical barrier such as a coast or the wall of a basin."/><term thcode="62" code="WC-700" name="Shelf Wave" parent="WC-685" scope="Hydroform Type: A wind-induced wave guided by continental shelf topography."/><term thcode="62" code="WC-701" name="Topographic Wave" parent="WC-685" scope="Hydroform Type: A sub-basin scale wave that is driven by wind-stress from the passage of cyclones across or along the shelf, with long period (~ 5 days) and to which a vorticity is imparted by the apparent Coriolis effect."/></nt></descriptor>