http://vocab.lternet.edu/vocab/vocab/ LTER Controlled Vocabulary jporter jporter 2018-09-19 en 2011-01-14 17:12:32 depth 2011-01-14 17:12:32http://vocab.lternet.edu/vocab/vocab/skos/668http://vocab.lternet.edu/vocab/vocab/skos/490http://vocab.lternet.edu/vocab/vocab/skos/515http://vocab.lternet.edu/vocab/vocab/skos/582